System Manual
Edition
SIRIUS Classic
Industrial Controls
siemens.com
05/2017
Safety guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to pro-
tect the product and connected equipment. These notices are highlighted in the manual by a warning triangle
and are marked as follows according to the level of danger:
Safety note
Contains important information for the acceptance test and the safety-related use of the product.
Danger
Indicates that death, severe personal injury or substantial property damage will result if proper precautions
are not taken.
Warning
Indicates that death, severe personal injury or substantial property damage can result if proper precautions
are not taken.
Warning
Indicates that minor personal injury or property damage can result if proper precautions are not taken.
Caution
indicates that property damage can result if proper precautions are not taken.
Important
Draws your attention to particularly important information on the product, handling the product, or to a particu-
lar part of the documentation.
Qualified personnel
Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and systems
in accordance with established safety practices and standards.
Correct usage
Note the following:
Warning
This device and its components may only be used for the applications described in the catalogue or the techni-
cal descriptions, and only in connection with devices or components from other manufacturers which have
been approved or recommended by SIEMENS.
This product can only function correctly and safely if it is transported, stored, set up, and installed correctly,
and operated and maintained as recommended.
Brands
SIMATIC®, SIMATIC HMI® and SIMATIC NET® are brands of SIEMENS AG.
Some other designations used in these documents are also brands; the owner's rights may be violated if they
are used by third parties for their own purposes.
Siemens AG
Division Digital Factory
PO Box 48 48
90026 NÜRNBERG
GERMANY
A5E40534713002A/RS-AA/001
05/2017 Subject to changes
Copyright © Siemens AG 2001
All rights reserved
Copyright SIEMENS AG 2001 All rights reserved
The reproduction, transmission or use of this document or its con-
tents is not permitted without express written authority. Offenders
will be liable for damages. All rights, including rights created by pat-
ent grant or registration of a utility model or design, are reserved.
Disclaimer of liability
We have checked this manual to ensure that its contents are correct
and applicable in relation to the hardware and software it describes.
Despite all our endeavors, however, discrepancies cannot be wholly
excluded and so we cannot guarantee complete correctness and
applicability. However, the data in this manual are reviewed regularly
and any necessary corrections included in subsequent editions. Sug-
gestions for improvement are welcomed.
SIEMENS AG
Technical Assistance
Breslauer Str. 5
D-90766 Fürth
Telephone: +49 (911) 895-5900 (8°° - 17°° CET)
Fax: +49 (911) 895-5907
E-mail: technical-assistance@siemens.com
Internet: www.siemens.com/sirius/technical-assistance
SIRIUS System Manual
A5E40534713002A/RS-AA/001 i
Contents
1 System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 Product range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.3 System features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.3.1 Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.3.2 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.4 Components and combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.5 Mounting methods and terminal systems . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.5.1 Mounting the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.5.2 Screw-type terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
1.5.3 Cage Clamp terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
1.5.4 Connection cross-sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.6 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.6.1 Communication-capable low-voltage switching technology . . . . . . . . . . . . . . 1-22
1.6.2 Parameterization of PROFIBUS-DP and bus-capable low-voltage switching devices . . 1-23
1.6.3 Actuator-sensor interface (AS-Interface) . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.6.4 SIRIUS NET Communication-capable motor starter . . . . . . . . . . . . . . . . . . 1-29
2 3RV1 Circuit breaker/MSP 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.2.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.2.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.2.3 Information on configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3.1 Motor protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3.2 Transformer protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3.3 Starter protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3.4 Motor protection with overload relay function . . . . . . . . . . . . . . . . . . . . . 2-14
2.3.5 Switching direct current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.3.6 Main and emergency stop switches . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.4.1 Attachable accessories: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.4.2 Auxiliary contacts 3RV19 01-.., alarm switch 3RV19 21-111 and auxiliary
release 3RV19 .2-.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2.4.3 Motorized remote-control mechanism 3RV19 .6-.... . . . . . . . . . . . . . . . . . . 2-22
2.4.4 Disconnecting/isolator module 3RV19 .8-1A . . . . . . . . . . . . . . . . . . . . . . 2-25
2.4.5 Thru-the door rotary operators 3RV19 .6-.. . . . . . . . . . . . . . . . . . . . . . . . 2-27
2.4.6 Terminals for "Combination Motor Controller Type E" in acc. with UL 508 . . . . . . . 2-33
2.4.7 Enclosures and mounting accessories . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
2.4.8 Busbar adapter 8US1 (Fastbus system) . . . . . . . . . . . . . . . . . . . . . . . . 2-39
2.4.9 Isolated 3-phase busbar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
2.4.10 Link module for connection to a contactor . . . . . . . . . . . . . . . . . . . . . . . 2-46
2.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
2.5.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
2.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
2.5.3 Device circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
2.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . 2-52
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2.7 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
2.7.1 General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
2.7.2 Permissible rating of approved devices for North America, u s . . . . . . . . . . . . . 2-66
2.7.3 Short-circuit breaking capacity Icn in acc. with IEC 60 947-2 . . . . . . . . . . . . . . 2-68
2.7.4 Limiter function with standard devices for 500 V AC and 690 V AC in acc.
with IEC 60 947-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
2.7.5 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
2.7.6 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-71
2.8 Application notes for the use of 3RV1 downstream from frequency converters/
inverter with pulsing voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72
2.8.1 Influences of high frequency currents upon the thermal overload release . . . . . . . 2-72
2.8.2 Other possible influences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73
3 3RT1 Contactors/ 3RH1 Control relays . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.1.1 Utilization categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.1.2 Positively driven operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.1.3 Safe isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.1.4 Explanation of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.2.1 Coil systems S00 to S3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.2.2 Short-circuit protection for SIRIUS contactors . . . . . . . . . . . . . . . . . . . . . 3-13
3.2.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.2.3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.2.3.2 Contact reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3.2.3.3 Electrical service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
3.2.3.4 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
3.3.1 3RT10 contactors with 3 main contacts for switching motors . . . . . . . . . . . . . . 3-23
3.3.2 3RT14 contactors with 3 main contacts for switching resistive loads (AC-1) . . . . . . 3-24
3.3.3 3RT13 and 3RT15 contactors with 4 main contacts . . . . . . . . . . . . . . . . . . . 3-25
3.3.4 3RT16 capacitor contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
3.3.5 Contactors with an extended operating range . . . . . . . . . . . . . . . . . . . . . 3-28
3.3.5.1 Contactors with series resister (3RH11...-0LA0/3RT10...-0LA0) . . . . . . . . . . . . . . 3-28
3.3.5.2 Contactors with electronic control module frame sizes S0 to S3 (3RT10..-.X40-0LA2) . . . 3-30
3.3.5.3 Contactors with an extended operating range (3RH1122-2K.40, 3RT1017-2K.4.,
3RT102.-3K.40) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31
3.3.6 3RH1 control relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
3.3.7 3RT10 contactor relays for switching motors (interface) and 3RH11 control relays
for switching auxiliary circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
3.3.8 3RA13 Contactor combinations for reversing . . . . . . . . . . . . . . . . . . . . . . 3-35
3.3.9 3RA14 Wye-delta combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46
3.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
3.4.1 Attachable auxiliary switches for extending the auxiliary contacts . . . . . . . . . . . 3-57
3.4.1.1 Terminal markings of the contactors frame sizes S00 to S3 . . . . . . . . . . . . . . . . 3-62
3.4.1.2 Terminal markings of the contactors and control relays combined with auxiliary switch blocks 3-64
3.4.1.3 Auxiliary switches that can be attached to 3RH1 control relays . . . . . . . . . . . . . . 3-66
3.4.2 Time-delay auxiliary switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
3.4.2.1 Frame size S00 (3RT1916-2E, -2F, -2G) . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
3.4.2.2 Frame sizes S0 to S3 (3RT1926-2E, -2F, -2G) . . . . . . . . . . . . . . . . . . . . . . . . 3-71
3.4.3 Solid-state time relay blocks with semiconductor output . . . . . . . . . . . . . . . . 3-72
3.4.3.1 Frame size S00 (3RT1916-2C, -2D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
3.4.3.2 Frame sizes S0 to S3 (3RT19 26-2C, -2D) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
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3.4.4 Additional load module (3RT1916-1GA00) . . . . . . . . . . . . . . . . . . . . . . . 3-75
3.4.5 Coupling element for frame sizes S0 to S3 (3RH1924-1GP11) . . . . . . . . . . . . . 3-76
3.4.6 Surge suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78
3.4.7 Other accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83
3.4.7.1 LED module for indicating contactor control (3RT19 26-1QT00) . . . . . . . . . . . . . . 3-83
3.4.7.2 Auxiliary connecting lead terminal, 3-pole for frame size S3 (3RT19 46-4F) . . . . . . . . . 3-83
3.4.7.3 EMC interference suppression module (3RT19 16-1P..) . . . . . . . . . . . . . . . . . . . 3-84
3.4.7.4 Soldering pin adapter for frame size S00 (3RT19 16-4KA.) . . . . . . . . . . . . . . . . . 3-85
3.4.7.5 Paralleling links (3RT19 .6-4B.31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-87
3.4.7.6 Sealing cover (3RT19 .6-4MA10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88
3.4.7.7 Terminal covers for frame sizes S2 to S3 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-89
3.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91
3.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91
3.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
3.5.3 Changing the magnetic coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98
3.5.4 Changing the contact pieces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103
3.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . 3-106
3.7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122
4 3RU11, 3RB10, 3RB12 Overload relays . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.2.2 Detailed device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.3 Application and use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.3.1 Overload relay in the motor circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.3.2 3RU11 thermal overload relays and 3RB10 electronic overload relays . . . . . . . . . 4-15
4.3.3 3RB12 electronic overload relays . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
4.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.4.1 Electrical remote RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.4.2 Mechanical thru-the-door reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.4.3 Other accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
4.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
4.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
4.5.1.1 3RU11 thermal overload relays and 3RB10 electronic overload relays . . . . . . . . . . . . 4-34
4.5.1.2 3RB12 electronic overload relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
4.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
4.5.3 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
4.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . 4-46
4.7 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
4.7.1 3RU11 thermal overload relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
4.7.2 3RB10 electronic overload relays . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54
4.7.3 3RB12 electronic overload relays . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61
4.7.4 Terminal bracket for stand-alone installation . . . . . . . . . . . . . . . . . . . . . . 4-66
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5 3RA1 Fuseless load feeders/Combination starters . . . . . . . . . . . . . . . . . . 5-1
5.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.2 Device descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.2.1 Mounting systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.2.2 Mounting kits for self-assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5.2.3 Complete devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
5.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.4.1 Accessories for the individual devices . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.4.2 Accessories specifically for the SIRIUS 3RA fuseless load feeder . . . . . . . . . . . 5-8
5.4.3 Instructions for self-assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
5.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.5.3 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . 5-24
5.7 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
6 3RH, 3TX, LZX Coupling links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Specifications/regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2.1 Relay coupling modules versus semiconductor coupling modules . . . . . . . . . . . 6-4
6.2.2 Coupling links in two-tier and box terminal format . . . . . . . . . . . . . . . . . . . 6-5
6.2.3 Plug-in relay coupling links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.2.4 Coupling links for direct attachment . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.2.5 SIRIUS contactor relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.2.6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.2.7 Notes on configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.2.8 Explanation of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
6.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
6.3.2 Criteria for selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
6.4.1 Accessories for two-tier coupling links . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
6.4.2 Accessories for LZX plug-in relay coupling links . . . . . . . . . . . . . . . . . . . . . 6-13
6.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
6.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
6.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
6.5.3 Device circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . 6-20
6.7 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
SIRIUS System Manual
A5E40534713002A/RS-AA/001 v
7 3RP20, 3RP15 Solid-state time relays . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.2.1 Device types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.2.3 Special features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.2.4 Notes on configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
7.2.5 Explanation of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.3.1 Multifunction (3RP20 05 solid-state time relay) . . . . . . . . . . . . . . . . . . . . 7-8
7.3.2 Multifunctional (3RP15 05 solid-state time relay) . . . . . . . . . . . . . . . . . . . 7-12
7.3.3 On-delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
7.3.4 Off-delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
7.3.5 Clock pulse generator (3RP15 55 solid-state time relay) . . . . . . . . . . . . . . . . 7-20
7.3.6 Wye-delta function (3RP15 74/76 solid-state time relay) . . . . . . . . . . . . . . . . 7-21
7.3.7 Wye-delta function with overtravel (3RP15 60 solid-state time relay) . . . . . . . . . 7-21
7.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
7.4.1 Accessories for 3RP15 05, 3RP20 05 . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
7.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
7.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
7.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
7.5.3 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
7.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . 7-27
7.7 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
8 3RW3 Semiconductor motor control unit . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8.2.1 Physical principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.2.2 General device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8.2.3 Comparison of the 3RW3 semiconductor motor control unit (soft starter) with the
SIKOSTART 3RW22 and SIKOSTART 3RW34 motor control units . . . . . . . . . . . 8-14
8.2.4 Comparison of the 3RW3 semiconductor motor control unit (soft starter)
with the 3RA star-delta combination . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
8.2.5 Notes on configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
8.3 Application and use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
8.3.1 Areas of application and criteria for selection . . . . . . . . . . . . . . . . . . . . . 8-18
8.3.2 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
8.3.3 Overview tables: correction factors . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.3.3.1 3RW30/31 soft starters in a stand-alone installation . . . . . . . . . . . . . . . . . . . . . 8-21
8.3.3.2 3RW30/31 soft starters in combination with the 3RV1 circuit breaker . . . . . . . . . . . 8-22
8.3.3.3 Combining the 3RT contactor with the 3RU1 thermal overload relay and 3RW3 soft starter 8-24
8.3.3.4 Combining the 3RT contactor with the 3RB10 electronic overload relay and 3RW3 soft starter 8-26
8.3.4 Circuit example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
8.3.5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
8.3.6 Event messages and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
8.3.7 Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
8.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
8.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
8.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
8.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
8.5.3 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
SIRIUS System Manual
vi A5E40534713002A/RS-AA/001
8.6 Dimensional drawings (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . 8-41
8.7 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
8.7.1 Control electronics/power electronics . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
8.7.2 Short-circuit protection and fuse coordination . . . . . . . . . . . . . . . . . . . . . 8-45
8.7.3 Site altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
8.7.4 Specifications in acc. with IEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51
8.7.5 Specifications in acc. with NEMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
9 3RE Enclosed starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.1 Specifications/regulations/approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9.2 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
9.3 Application and areas of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9.3.1 The enclosed starter in motor branches . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9.3.2 Planning and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
9.5 Mounting and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9.5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9.5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9.5.3 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
9.6 Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
9.7 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-1
1
System overview
Section Subject Page
1.1 Specifications/regulations/approvals 1-3
1.2 Product range 1-5
1.3 System features 1-10
1.3.1 Environmental requirements 1-11
1.3.2 Environmental protection 1-11
1.4 Components and combinations 1-12
1.5 Mounting methods and terminal systems 1-16
1.5.1 Mounting the equipment 1-16
1.5.2 Screw-type terminals 1-18
1.5.3 Cage Clamp terminals 1-19
1.5.4 Connection cross-sections 1-21
1.6 Communication 1-22
1. 6 . 1 Communication-capable low-voltage switching
technology 1-22
1. 6 . 2 Parameterization of PROFIBUS-DP and bus-capable
low-voltage switching devices 1-23
1.6.3 Actuator-sensor interface (AS-Interface) 1-24
1.6.4 SIRIUS NET Communication-capable motor starter 1-29
System overview
SIRIUS System Manual
1-2 A5E40534713002A/RS-AA/001
Introduction
SIEMENS is one of the leading manufacturers of control products. The
product range extends from devices that switch a few mA to circuit
breakers used in power distribution.
Throughout the continuing development of these products we have always
striven to ensure that requirements in terms of fundamental performance
features, electrical and mechanical service life, dimensions, and ease of
installation and maintenance are met or exceeded.
We have been able to meet the demands resulting from increased environ-
mental awareness, particularly in the last ten years or so, by developing and
using environment-friendly and recyclable materials. As a result, we have
developed modern industrial switching devices, particularly in the field of
low-voltage switchgear, that meet all the relevant demands in terms of
environment-friendliness.
Building on decades of experience, we have created a completely new
generation of circuit breakers, contactors, auxiliary contactors, overload
relays, contactor relays, time relays, and 3RW3 semiconductor motor con-
trol devices (referred to below as soft starters) under the name SIRIUS for
the large and continuously growing number of motor drives in the range up
to 250 kW (400 HP).
These new SIRIUS devices fulfill all the demands placed on them in practice
and can be used as stand-alone devices or modular components of com-
plete load feeders, or integrated in low-voltage distribution cabinets or low-
voltage switching stations.
System overview
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-3
1.1 Specifications/regulations/approvals
ALPHA/LOVAG The Low Voltage Controls and Distribution Division of Siemens AG is a
member of "Gesellschaft zur Prüfung und Zertifizierung von Niederspan-
nungsgeräten e.V. ALPHA" (Society for Testing and Certification of Low-
Voltage Equipment), Frankfurt am Main.
The responsibility of manufacturers and the high quality of products are pro-
moted by ALPHA by means of supportive procedural guidelines for testing
equipment in accordance with the currently valid standards. Providing spe-
cific conditions are fulfilled, ALPHA can also issue officially recognized
product certificates if required. As a member of LOVAG, ALPHA is also
working towards obtaining international recognition for declarations of con-
formity and certificates.
In LOVAG (Low Voltage Agreement Group), international specialists from
certification bodies and industry are working together to create a
standardized European certificate.
List of LOVAG members
ALPHA Germany
ASEFA France
ACAE Italy
CEBEC Belgium
CESI Italy
KEMA Netherlands
SEMKO Sweden
Explosion protection Motor protection devices that protect a motor installed in a potentially
explosive atmosphere against overloading must comply with certain special
requirements. These requirements are laid down in the following standards:
• EN 60947-1
• EN 60079-14
• EN 60947-4-1
•EN 50014
• EN 50019.
Certification
On July 1, 2003 a new era began in the area of explosion protection. Since
this date, within the European Union, only those devices and protection sys-
tems that have been certified for use in potentially explosive atmospheres in
accordance with directive 94/9/EU can be brought into circulation.
Only those motor protection devices that have been constructed in accor-
dance with the above-mentioned standards and which have a conformity
declaration from the manufacturer based on a prototype test certificate are
permitted to be brought into circulation within the member states of the EU.
The quality management system of the manufacturer is also subjected to
certain requirements and a "QM certificate" must be obtained for the manu-
facturer from a recognized authority.
System overview
SIRIUS System Manual
1-4 A5E40534713002A/RS-AA/001
Certification of the QM system
A certificate of approval for quality assurance production has been issued by
DMT 1) with the DMT 1) number 02 ATEX ZQS/EM, in accordance with
directive 94/9/EU.
This certificate is valid for equipment groups I and II and categories M2
and 2: Safety and control devices for electrical equipment.
Certificates
For the 3RV, 3RU, 3RB, 3UF5 and 3RN motor protection devices, the
corresponding conformity declarations and prototype test certificates for
Category 2G and partly 2D are available and can be supplied on request.
Identifying markings
All equipment must be marked in accordance with the ATEX guideline. The
ATEX identification code contains the equipment group, the approved envi-
ronment, the number of the certification authority and other technical data
that was determined from the type test.
UL/CSA Underwriter’s Laboratories (UL) and the Canadian Standards Association
(CSA) are authorized to grant approvals acording to US or Canadian regula-
tions and standards. These standards typically apply to the control product
as a componient and not the installation or the use of the product. It is the
responsibility of the end user of the control product to make sure each
installation complies with all of the applicable safety requirements, laws,
regulations, codes and standards (examples: N.E.C., the C.E.C. and OSHA
regulations.
1)DMT
The certification authority of the Deutschen Montan Technologie GmbH,
numbered as authority number 0158 in accordance with Article 9 of Direc-
tive 94/9/EU of the European Parliament dated March 23, 1994, certifies
that Siemens Amberg and Cham maintains a quality system for produc-
tion that satisfies Appendix IV of this directive.
System overview
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-5
1.2 Product range
SIRIUS system The SIRIUS product range consists of 3RV circuit breakers/Motor Starter
Protectors, 3RT contactors, 3RH/3RT control relays and auxiliary contacts,
3RU thermal overload relays, 3RB10/3RB12 electronic overload relays, 3RP
time relays, 3RW3 semiconductor motor control devices (referred to below
as soft starters), and combinations of these devices, which form the 3RA
load feeders (combination starters).
The individual devices are developed and built in such a way that it is very
easy to put them together to make load feeders. This is possible because
the devices are all built to work together on both an electrical and a
mechanical level.
Fig. 1-1: SIRIUS System
NSB00296
3
3
1
2
a
b
5
4
System overview
SIRIUS System Manual
1-6 A5E40534713002A/RS-AA/001
Circuit breaker (MSP) with a frame size of S00 and attachable accessories:
Fig. 1-2: Circuit breaker (MSP), accessories (frame size S00)
Circuit breakers (MSPs) with frame sizes of S0, S2, and S3 and attachable accessories:
Fig. 1-3: Circuit breakers (MSPs), accessories (frame sizes S0, S2, and S3)
Attachable accessories for frame sizes S00, S0, S2, and S3:
1.1) Transverse auxiliary switch with 1 changeover contact
1.2) Transverse auxiliary switch with 1 NO + 1 NC or 2 NO contacts
2) Lateral auxiliary switch with 2 contacts
3) Lateral auxiliary switch with 4 contacts
4) Shunt release
5) Undervoltage release
6.1) Undervoltage release with leading auxiliary contacts (S00)
6.2) Undervoltage release with leading auxiliary contacts (S0 to S3)
7) Alarm switch (S0 to S3)
8) Disconnecting module (S0 and S2)
NSB00005d
6.1
5
4
2
3
1. 2
1. 1
NSB00006d
8
3
2
7
5
4
6.2
1. 2
1. 1
System overview
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-7
Contactors with a frame size of S00 and accessories:
Fig. 1-4: Contactors, accessories (frame size S00)
1) Contactor
2) Control relay
3) Solid-state time relay block, on-delay
4) Solid-state time relay block, off-delay
5) Auxiliary switch block, time-delay
(on-delay or off-delay or wye-delta function)
6) 1-pole auxiliary switch block, infeed from above
7) 2-pole auxiliary switch block, infeed from above
8) 1-pole auxiliary switch block, infeed from below
9) 2-pole auxiliary switch block, infeed from below
10) 4-pole auxiliary switch block
(terminal markings in acc. with DIN EN 50 012 or DIN EN 50 005)
11) 2-pole auxiliary switch block, standard or electronic
type (terminal markings in acc. with DIN EN 50 005)
12) Soldering pin adapter for contactors with 4-pole auxiliary switch block
13) Soldering pin adapter for contactors and contactor relays
14) Additional load module to increase the permissible residual current
15) Surge suppressor with LED
16) Surge suppressor without LED
17) 3-phase feed-in terminal
18) Parallel link (neutral bridge), 3-pole, without terminal
19) Parallel link, 3-pole, with terminal
20) Parallel link, 4-pole, with terminal
NSB00448
15
3
4
5
6
7
8
9
10
11
14
20
19
16
12
13
1
17
18
2
System overview
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1-8 A5E40534713002A/RS-AA/001
Contactors with frame sizes of S0 to S3 with accessories:
Fig. 1-5: Contactors, accessories (frame sizes S0 toS3)
1) Contactor, frame size S0
2) Contactor, frame size S2
3) Contactor, frame size S3
For frame sizes S0 to S3:
4) Solid-state time relay block, on-delay
5) Solid-state time relay block, off-delay
6) Auxiliary switch block, time-delay (on- or off-delay or wye-delta function)
7) 2-pole auxiliary switch block, infeed from above
8) 2-pole auxiliary switch block, infeed from below
9) 4-pole auxiliary switch block
(terminal markings in acc. with DIN EN 50 012 or DIN EN 50 005)
10) Parallel link (neutral bridge), 3-pole, without terminal
11) Parallel link, 3-pole, with terminal
12) 2-pole auxiliary switch block, attachable on the right or left side
(terminal markings in acc. with DIN EN 50 012 or DIN EN 50 005)
13) 1-pole auxiliary switch block (a maximum of 4 can be snapped on)
14) Mechanical interlock, attachable at the side
NSB00449
4
10
5
18
17
16
11
1
12
9
6
15
14
1
8
7
13
16
19
21
20
2
21
22
23
20
3
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A5E40534713002A/RS-AA/001 1-9
15) Mechanical interlock, attachable at the front
16) Wiring blocks above and below (reversing mode)
17) Surge suppressor (varistor, RC element, diode combination),
attachable above or below (varies for S0 and S2/S3)
18) Coupling link for direct connection to the contactor coil
19) LED block to display contactor function
For frame sizes S2 and S3 only:
20) Terminal for contactor coil for setting up contactor combinations
21)Terminal cover for box terminals
For frame size S3 only:
22)Terminal cover for terminal end and bar connection
23)Auxiliary connecting lead terminal, 3-pole
System overview
SIRIUS System Manual
1-10 A5E40534713002A/RS-AA/001
1.3 System features
The entire SIRIUS range of devices is divided up into only four frame sizes
(S00 to 5.5 kW (7.5 HP), S0 to 11 kW (15 HP), S2 to 22 kW (40 HP), S3 to
45 kW (75 HP) at 400 V) with three different frame widths (45 mm for S00
and S0, 55 mm for S2 and 70 mm for S3) and has a uniform range of acces-
sories for all frame sizes.
Modular system The individual components of the SIRIUS range are building blocks in a
modular system that are harmonized in terms of both their frame size and
their technical specifications. This ensures that individual requirements can
be met quickly and cost-effectively.
Uniformity The devices are harmonized with regard to their ratings and their technical
specifications:
• The same width ensures rapid installation.
• The terminal systems are standardized, and devices with the same rated
current have the same terminals.
Performance capability All SIRIUS devices can be mounted side by side without derating in an
ambient air temperature of up to 60 °C.
Accessories All accessories, such as the auxiliary switches and surge suppressors, can
be mounted and removed without tools.
You can use link modules that connect devices both mechanically and elec-
trically to put together combinations of devices and build fuseless load
feeders.
Communication The interface of SIRIUS-control components with a high level control sys-
tem is in addition to the conventional wiring is possible over networking
systems:
• AS-Interface
•PROFIBUS-DP
Using these networking systems SIRIUS-control components are incorpo-
rated in the SIEMENS automation concept Totally Integrated Automation.
Totally Integrated Automation offers the user threeway continuity in planing/
programing, data management and communication.
Safety technology SIRIUS-control components are often used in safety related installations.
With the Safety Integrated-concept, solutions ranging from safety relays up
to fail safe communication over AS-Interface or PROFIBUS-DP can be
achieved.
System overview
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-11
1.3.1 Environmental requirements
SIRIUS-control components are made for any climate and are suitable and
tested for global usage.
The related environmental requirements are described in DIN EN 60721-3-3
Important environmental requirements:
Ambient temperature: -25 to +60 °C
Relative humidity: 10 to 100 % (occasional condensation)
Additional information to the subject environmental requirements can be
found in the handbook "Switching, Protection, and Distribution in Low-Volt-
age Networks" (1994), P. 65.
1.3.2 Environmental protection
SIRIUS-control components do not contain Halogen, Asbestos, or Cadmium.
The manufacturing of SIRIUS devices complies with, as one of the very few
manufacturing locations, the stringent requirements of the EU-Öko-Audit-
Directive.
All SIRIUS devices work energy efficient and are close to being completely
recyclable.
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1-12 A5E40534713002A/RS-AA/001
1.4 Components and combinations
This section describes the components of the SIRIUS system and the
device combinations that are possible with these components.
Components of the SIRIUS system
The following table contains a list of the components of the SIRIUS system
together with the most important accessories:
Components Brief description/features Accessories
3RV1 circuit breakers (in
USA/Canada: Motor
Starter Protector)
- Switch and protect motors up to 100 A - Auxiliary switches (transverse,
lateral)
- Undervoltage releases
- Shunt releases
- Alarm switches
- Housing
- 3-phase busbar system
3RT10 motor contactors - Switch motors up to 45 kW (75 HP) and
currents up to 95 A
- Types: 3-pole for switching
- 4-pole, with 4NO or 2NO + 2NC contacts
- Soldering pin adapter
- Capacitor switching contactor
- -Reversing and wye-delta combinations
- Auxiliary switch blocks
- Surge suppressors
- Parallel links
- Time relay blocks
- Link modules
- Wiring blocks
3RH11 control relays - Same type of construction as the 3RT
- Basic version: 4-pole, expandable to 8 pins
by means of auxiliary switch blocks
- High contact stability (1 mA; 17 V)
3RT10/3RH11 contactor
relays
- Switch motors and auxiliary contactors with
an extended operating range (17 V to 30 V)
3RU11 overload relays -CLASS 10
- Phase loss sensitivity
- Series auxiliary contacts 1 NO + 1 NC con-
tact
- Frame size S00: repetition terminal for the
auxiliary contact and coil connection for
attachment to contactors
- Integrated, transparent and sealable cover
for the adjusting knob and test function
- Remote RESET, electrical
- Mechanical RESET
- Terminal bracket for stand-alone
installation
3RB10 overload relays - CLASS 10 and CLASS 20
- Rapid tripping operation in the event of
phase loss (< 3 s)
- Series auxiliary contacts 1 NO + 1 NC
- Low power loss, energy-saving
- Wide adjustment ranges for simple configu-
ration, selection, and less storage
- Extremely low energy requirements, approx.
50 mW
- Remote RESET, electrical
- Mechanical RESET
- Terminal bracket for stand-alone
installation
Table 1-1: Components and combinations with accessories
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A5E40534713002A/RS-AA/001 1-13
3RB12 overload relays - CLASS 5 to CLASS 30 can be set
- Phase loss sensitivity
- 2 outputs per 1 NO + 1 NC contact
- Integrated current transformers in all sizes
- Motor protection due to the connection of a
thermistor sensor circuit
- Internal ground fault monitoring
- Overload warning
- Remote and automatic reset possible
- High tripping accuracy
- Wide adjustment ranges
- Self-monitoring
- Summation current transformer for
external ground fault monitoring
- DC adapter
- Terminal cover
3RA1 load feeders
(combination starters)
- Load feeder (combination starter) consisting
of a circuit breaker (MSP) and contactor
- Simple assembly with link modules and
wiring blocks
- Reversing combination (link modules)
- Wye-delta combination
- Accessories for the basic devices
(contactors and circuit breakers)
- Special accessories:
Auxiliary switches connectable
from above or below
3RP20/15 solid-state
time relays
- 8 adjustable time ranges from 0.05 seconds
to 10 hours
- Constantly high repeatability
- Type with combination voltage (24 V DC and
110 to 240 V AC)
- 2 device types: on-delay and multifunctional
(7 functions)
- Long mechanical and electrical service life
- Coding plug sets
- Locking device
3RW30/31 soft starters - Reduction of the starting current for a
smooth start
- Soft coasting down function
- Only 3 motor supply leads are required
- System adaptation using setting options:
starting time, starting voltage, coasting
down time
-Fans
Load feeders
(combination starters)
with communication
capability
Complete pre-wired Load feeders (combina-
tion starters)/Motor starters
- for AS-Interface in degree of protection IP20:
AS-Interface Load feeders (combination
starters) 3RA5
- AS-Interface system accessories
- for AS-Interface in degree of protection IP65:
AS-Interface compact starter
- Supply modules/-wiring /
AS-Interface system accessories
- for PROFIBUS-DP in degree of protection
IP20: distributed I/O ET 200S
- System accessories ET 200S
- for PROFIBUS-DP in degree of protection
IP65: discredited I/O ET 200X
- Supply modules/-wiring / system
accessories ET 200X
- for AS-Interface and PROFIBUS-DP in degree
of protection IP65:
ECOFAST motor starter
- Supply modules/-wiring / system
accessories ECOFAST
Components Brief description/features Accessories
Table 1-1: (cont.) Components and combinations with accessories
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Device combinations The following diagrams show you the possible device combinations, using
the S00 frame size as an example
Fig. 1-6: Device combinations
3RV10 Circuit
breaker (MSP)
3RA19 link
module
3RT10 Contactor
3RT10 Contactor
3RU11 Overload
relay
Fuseless
load feeder (combination starter)
Fused
load feeder
3RA13 reversing combination
3RA14 Wye-delta combination
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A5E40534713002A/RS-AA/001 1-15
Contactor combination for reversing the S00 frame size (with accessories)
Fig. 1-7: Contactor combination for reversing
Individual parts:
1/2) Contactors
4/5/6)Kit
The kit includes:
4) Mechanical interlock
5) 2 connection clips for 2 contactors
6) Wiring blocks above and below to connect the main conducting paths with electrical interlock
(NC contact interlock - can be removed if required)
Attachable accessories:
13) Soldering pin adapter
14) Auxiliary switch block, on the front (only an auxiliary switch block that complies with
DIN EN 50 005 can be used)
16) Surge suppressor
2
6
1
6
4
5
NSB00459
13
1414
1414
14 16 13
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1.5 Mounting methods and terminal systems
1.5.1 Mounting the equipment
The method of mounting the equipment is uniform within each frame size.
Panel mounting The SIRIUS switching devices can be screwed on to a flat surface.
Please note the following points with some of the devices:
• 3RV1 circuit breaker (MSP), frame sizes S00/S0: Push-in lugs are required
for screw-type panel mounting
• 3RP15 time relay: Push-in lugs are required for screw-type panel
mounting
• Coupling links: No screw-type panel mounting
• Soft starters: No screw-type panel mounting
Snap-on mounting
(DIN rail mounting)
The SIRIUS switching devices are snapped onto 35 mm DIN rails in acc.
with DIN EN 50 022 without a tool.
The devices with a frame size of S3 require a rail with an installation height
of 15 mm. Alternatively, they can also be snapped onto 75 mm rails.
Frame size Mounting Removal
S00 to S3 Panel Mount Removed with a screwdriver
S00, S0 Snapped onto a
35 mm rail (in acc. with
DINEN50022)
Removed without a tool
S2 Snapped onto a
35 mm rail (in acc. with
DINEN50022)
The snap-on spring can be opened with a
screwdriver
S3 Snapped onto a
35 mm rail (in acc. with
DINEN50022)
Snapped onto a
75 mm rail
The snap-on spring can be opened with a
screwdriver
Table 1-2: Mounting methods
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A5E40534713002A/RS-AA/001 1-17
The following table shows you how to mount the device onto the DIN rail:
The following table shows you how to remove the device from the DIN rail:
You will find notes on mounting the different devices onto DIN rail in the
relevant parts of the fifth section of any chapter entitled “Mounting and
connection”
.
Frame
size
Procedure Illustration
S00/S0 Place the device on
the upper edge of the
rail, and press it down-
wards until it snaps
onto the lower edge
of the rail.
S2/S3 Place the device on
the upper edge of the
rail, and tilt it towards
the rail until it snaps
onto the lower edge
of the rail.
Table 1-3: Mounting the device on the DIN rail
Frame
size
Procedure Illustration
S00/S0 Push the device
downwards to release
the tension of the
mounting spring, and
remove the device by
tilting it.
S2/S3 Using a screwdriver,
push the clip on the
lower rear side of the
device downwards to
release the tension of
the mounting spring
(1), and remove the
device by tilting it (2).
Table 1-4: Removing the device from the rail
2
1
1
1
2
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1.5.2 Screw-type terminals
The terminals used do not vary within a frame size. The current switched by
the different devices of a single frame size does not vary either. This means
you can use the same tool, torque, and conductor cross-section for the cir-
cuit breakers, contactors, and overload relays of a single frame size. The
stripping lengths of the conductors are also the same. This is important in
the case of prefabricated wiring.
Screw-type terminals All the devices have screw-type terminals, either a terminal with a top
washer or a box terminal, depending on the frame size.
Devices with frame sizes S00 and S0 have terminals with captive screws
and terminal washers that enable you to connect 2 conductors, even if they
have different cross-sections.
The box terminals of frame sizes S2 to S3 can also take 2 conductors with
different cross-sections.
Connection tools Use the following tools to make the connection:
• Frame sizes S00 to S2: Screws are available for rated currents of up to
50 A for Pozidriv2 screwdrivers.
• Frame size S3: To obtain the required torques for the frame size for up to
95 A, Allen screws are used.
- Frame size S3: Allen screw SW4
The screwdriver guides around the terminal allow screw driving machines to
be used.
Lugs and connecting
bars
You can remove the box terminals from the devices with a frame size of S3
to connect conductors with lugs or connecting bars. A terminal cover is
available as shock protection and to ensure that you comply with the
required creepage and clearance distances when the box terminals are
removed. You can find a detailed description in the forth section of an indi-
vidual chapter entitled “Accessories”.
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A5E40534713002A/RS-AA/001 1-19
1.5.3 Cage Clamp1 terminals
The Cage Clamp terminal system is now available for circuit breakers
(MSPs), contactors, overload relays, and time relays.
Cage-type clamping units, known as Cage Clamp terminals in the case of
SIRIUS products, facilitate quick and maintenance-free wiring.
Design The Cage Clamp terminal consists of two parts:
• A power rail for conducting current
• A spring cage-type clamp for clamping strength
Fig. 1-8: Cage Clamp terminal
Conductors The Cage Clamp terminal on the switching devices clamps all copper wires
(single-core, stranded and finely stranded) from 0.25 mm2 to 2.5 mm2. The
conductors can be clamped directly or with some protection for splicing. To
this end, wire end ferrules or pin-end connectors can be placed on the con-
ductor ends. The best solution is an ultrasonically condensed conductor.
1. Cage Clamp is a registered trademark of the Wago Corporation
Clamp
Power rail
Single-core
Stranded
Finely stranded
Finely stranded with wire end ferrule
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Safety The devices are equipped with a two-wire connection. In other words, there
are two independent connections for each conducting path.
Only one conductor is connected to each clamping unit.
The clamp presses the conductor against the power rail, which is curved at
this point. A highly specific compressive load per area is achieved making it
gas tight.
The clamp presses its flat surface against the conductor, thus avoiding dam-
age to it. The spring force of the clamp is designed so that it automatically
adjusts to the radius of the conductor. This allows any deformation of the
conductor to be dealt with. It is not possible for the clamping unit to loosen
by itself.
This connection is vibration- and shock-proof. These types of stress do not
damage the conductor or cause any loss in contact.
Machines and systems in which this type of stress occurs, such as vibra-
tors, rail vehicles and elevators, are particularly suitable applications for this
connection.
Transfer
accuracy
The contact pressure between the conductor and power rail is optimal,
making this clamp terminal suitable for high-voltage installations and also for
the transfer of voltages and currents in the mV and mA ranges in measuring
technology and electronics.
Tool Screwdrivers for opening the Cage Clamp terminals can be obtained from
the SIEMENS low voltage controls catalog.
Procedure The following table shows you how to use the Cage Clamp
Step Procedure
1Insert the screwdriver into
the rectangular opening
until it stops.
The screwdriver head auto-
matically keeps the clamp
open.
2Insert the conductor into
the oval terminal opening.
3Remove the screwdriver.
The terminal closes, and
the conductor is thus
securely clamped.
Table 1-5: How to use a Cage Clamp terminal
NSJ 00001
NSJ 00002
NSJ 00003
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A5E40534713002A/RS-AA/001 1-21
Small conductor
cross-section
With conductor cross-sections that are ≤ 1 mm2, you should use an insu-
lating stop to avoid contact between a terminal and the conductor insula-
tion.
The illustration below shows the procedure:
Fig. 1-9: Conductor cross-sections ≤ 1 mm²
1.5.4 Connection cross-sections
Because SIRIUS is a modular system, the connection cross-sections are the
same for all devices of a single frame size.
The following tables specify the permissible conductor cross-sections for
main and auxiliary conductor connections. The example shown is frame
size S0:
Frame size S0
≤ 1mm²
3RT1916-4JA02
Coil terminals: A1/A2
Auxiliary conductor: NO/NC Main conductor
Screw-type
terminals
Cage Clamp
terminals
L1 L2 L3
T1 T2 T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in —2 to 2.5 Nm
18 to 22 lb·in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 2.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 1.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
— 2 x (0.25 to 2.5 mm²) —
AWG 2 x (18 to 14) 2 x (24 to 14) 2 x (14 to 10)
Table 1-6: Connection cross-section for frame size S0
10
10
10
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1-22 A5E40534713002A/RS-AA/001
1.6 Communication
Fig. 1-10: Communication
1.6.1 Communication-capable low-voltage switching technology
The communication-capable control components from SIEMENS ensures
the user a continuous Automation solution from network up to the control
panel. The concept is based on using AS-Interface and PROFIBUS-DP, the
two standardized and open networking systems, which can be connected to
by virtually all of the known control system manufacturers.
Actuator-sensor inter-
face (AS-Interface)
AS-Interface is a standardized, non-proprietary networking system
(IEC 62026-2) for simple and usually binary actuators and sensors. It is pos-
sible to connect it to SIMATIC programmable logic controllers via different
master modules. A DP/AS-Interface link also ensures direct integration in a
PROFIBUS-DP system or connection to other field buses via couplers. Up to
248 sensors and 186 actuators can be connected to an AS-Interface network
over a maximum of 300 m. Safety-related signals can now also be net-
worked with AS-Interface, thus dispensing with the wiring of emergency
stop signals that were previously needed.
PROFIBUS PROFIBUS is a standardized, non-proprietary networking system
(IEC 61158) to which most PLCs of leading manufacturers can be con-
nected. Up to 125 nodes can be incorporated in one bus segment. Dis-
tances of up to 9.6 km can be bridged with copper conductors and up to
100 km with fiber-optic conductors.
S7-300
M
3
M
3
M
3
NSA00001b
AS-Interface
M
3
LOGO!
PROFIBUS-DP
NT NT
Safety
monitor
CP 343-2
Proximity
switch
BERO
Command
devices
SIGNUM
AS-Interface
Motor starter
Signal column
DP/AS-Interface
Link
SIMOVERT
MASTER DRIVES
Distributed
I/O device
ET 200X
Motor starter 3RA5
Motor protection and
control device
SIMOCODE-DP
3UF50
Circuit breaker
SENTRON WL/VL
HMI/Visualization
COROS/WIN CC
SIMATIC S7/C7
Input/output modules
in IP20
analogdigital
Membrane keyboard
3SB4
Input/output modules
in IP67
secure digital input modules
Distributed I/O device
ET 200S
System overview
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A5E40534713002A/RS-AA/001 1-23
PROFIBUS-DP PROFIBUS-DP (DP being a German abbreviation for distributed I/O) is used
for switching devices with higher communication requirements (e.g. the
transmission of a large volume of data with extremely fast response times).
It is also used to link individual AS-Interface segments.
PROFIsafe PROFIBUS-DP can also transfer safe signals. The PROFIsafe-Protocol can be
used to communicate safe inputs and outputs with a fail safe controller.
1.6.2 Parameterization of PROFIBUS-DP and bus-capable low-voltage switching devices
Before commissioning, PROFIBUS-DP must be configured, and the indi-
vidual bus nodes must be parameterized. There are user-friendly tools
available to the user for configuration and parameter assignments.
Parameter assignment
tools
• For SIMATIC S7 masters, all the functions are integrated in the STEP 7
programming language.
• For SIMATIC S5 masters and various non-SIEMENS masters, the COM
PROFIBUS parameter assignment software is required.
• Manufacturers of non-SIEMENS masters offer other configuration and
parameter assignment programs.
There are various product specific software packages available that allow
you to easily parameterize and diagnose your low voltage control devices
with a variety of functions.
COM SIMOCODE for the motor protection- and control device
SIMOCODE-DP.
SWITCH ES motor starter for ECOFAST Motor starter and
ET 200S High Feature motor starter.
These Software packages are either completely incorporated in STEP 7,
communicated via PROFIBUS-DP or directly via a serial interface with the
respective field device
Applications The above program packages make it easy to carry out the following for
PROFIBUS-DP and its nodes:
• Configuration
• Parameter assignment
• Documentation
• Commissioning
• Testing
• Diagnostics
For additional information on communication-capable low-voltage switching
devices, as well as system components and accessories, see the following
catalogs:
• Industrial Controls Catalog (PC 6000)
• IK PI "Industrial Communication and Field Devices"
• CA01 "Automation- and Drives technology" (CD-ROM)
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1.6.3 Actuator-sensor interface (AS-Interface)
Actuator-sensor interface (AS-Interface) is a modular networking system for
sensors and actuators in the lowest field range.
It makes no difference to the program in the programmable controller
whether parallel wiring with input/output modules or AS-Interface is used.
It is therefore possible for existing systems to change to AS-Interface
because you can continue to use the same programs. The entire system can
be operated without additional software. It is not necessary to be familiar
with the internal workings of AS-Interface.
Replacement for the
cable harness
Process signals that occur locally are normally transferred to the open loop
control using extensive parallel wiring and input/output modules. This
means that each sensor or actuator in the field is connected to the input/
output modules with its own cable. AS-Interface makes it possible to
replace this cable harness with a simple two-wire cable for all sensors and/
or actuators.
Data and power on a
two-wire cable
The master communicates with the nodes via the AS-Interface cable. As
well as data, this cable also transfers the supply voltage for node operation
and node inputs, i.e. sensors. The voltage is supplied to the AS-Interface
cable from a special AS-Interface power supply unit with a data link.
Setting up different
structures
The AS-Interface cable is installed in the same way as for an electrical instal-
lation. A new node can be inserted at any point. This makes it possible to
set up network structures (e.g. tree, star or line structures). No shielding or
terminating resistors are required. The wiring can be adapted individually to
the system or machine.
Maximum System
configuration
Detailed configuration and installation guidelines can be found in the instal-
lation guideline "Installation of the AS-Interface networking system" (on
mounting the AS-Interface networking system).
Up to 62 nodes can be connected to the AS-Interface cable. A node is, for
example, an AS-Interface module (digital or analog) or a BERO (proximity
switch) with an integrated AS-Interface chip. A maximum of 4 binary sen-
sors and/or 4 actuators can be connected to an AS-Interface module.
This produces a maximum configuration of 248 inputs and 186 outputs
(62 nodes x 4 inputs and 3 outputs).
Degree of protection AS-Interface is a networking system for direct use on the machine. The
AS-Interface compact module has an IP67 degree of protection. They can be
used without an enclosure.
There are also AS-Interface modules with IP20 protection for use in enclo-
sures or distribution panels.
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A5E40534713002A/RS-AA/001 1-25
Installation system All compact modules are placed on a mounting plate. The mounting plate
takes the AS-Interface cable and keeps it in place. Polarity reversal is
virtually impossible due to the profile of the cable. The compact modules
are simply hooked on at the top of the mounting plate and secured with just
one screw. When you secure the modules, contact is made with the AS-
Interface cable. You do not have to strip or screw on the cable.
Coding prevents errors All the modules are mechanically and electrically coded.
The coding system prevents errors occurring in the event of replacement. At
replacement, only one module of the same type can ever be mounted. This
stops digital or analog modules (or even inputs or outputs) getting mixed up.
Addressing To participate in data transfer with the master, each node must be assigned
an address before commissioning of the AS-Interface network. Addressing
devices are available for this.
Addressing an installed
module
There is an additional feature which makes new SIEMENS modules even
more user-friendly: the addressing socket.
Using this socket you can address a module after it has been installed. It is
not necessary to unscrew the module. Installation can be carried out in the
system by personnel who are not familiar with the AS-Interface. The com-
missioning engineer can address the modules easily when they are already
installed. For the first time, this type of addressing is also possible with IP67
protection.
Diagnostics at a glance The new generation of AS-Interface modules (compact modules, analog
modules, and SlimLine modules) has the new display system developed by
SIEMENS.
The status of a module is displayed by two LEDs lighting up continuously or
flashing.
This simple diagnostic feature directly on the module makes it possible for
the user to find the error quickly and efficiently. This in turn reduces down-
times.
Certificates of the
AS-Interface
association
All SIEMENS AS-Interface products are tested in accordance with the rele-
vant testing regulations in an accredited test laboratory and certified by the
AS-Interface association.
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Digital compact
modules with IP67
protection
AS-Interface modules in the compact range are characterized by optimized
operating features and improved user-friendliness.
This can reduce mounting and commissioning times for AS-Interface by up
to 40 %. Additional LEDs provide information on the most important operat-
ing modes of the module, resulting in a considerable increase in system
availability.
The modules of the compact range consist of two components:
Mounting plate and compact module
The mounting plate mechanically fixes the AS-Interface profile cables, takes
the compact module, and serves as a template with drill holes.
The compact module contains the electronic components for communica-
tion and the M12 standard connections for inputs/outputs. Up to four sen-
sors and four actuators can be easily and reliably connected to the compact
module using the M12 standard connection.
The mounting plate and compact module are connected to each other by
means of a single screw. Contact is established with the AS-Interface cable
by means of the proven insulation displacement method.
AS-Interface modules in the compact range with an M12 connection can
have a protective conductor (PE) connected to them.
Using an addressing socket integrated in the compact module, you can also
allocate addresses when the module is in place.
Analog compact
modules with IP67
protection
The design of the analog modules has been adapted for the compact
modules. The analog input and output modules each have two channels. You
can connect measuring sensors and analog actuators using standard M12
connectors. The following groups of analog modules exist:
• Input module for two current sensors
• Input module for two voltage sensors
• Input module for two thermal resistors
• Output module for two current actuators
• Output module for two voltage actuators
All the measured values – except for the thermal resistance value of Pt 100
(not linear) – are available in linear form. In other words, the non-linear trans-
mission curve of the thermal resistor sensor is automatically linearized in
the analog module, and measured values can be processed directly in the
programmable controller.
The input and output channels are isolated. Two-wire and four-wire sensors
can be connected. Differential inputs produce considerable suppression of
common-mode interference. The integrating sigma-delta converter ensures
high measurement accuracy.
System overview
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A5E40534713002A/RS-AA/001 1-27
Safety first –
emergency-Stop via
AS-Interface
AS-Interface is a system that can transmit both standard signals and safety-
related input signals (e.g. Emergency stop) via the same cable.
Only an additional safety monitor and safe modules are required to use
AS-Interface as a safety bus. This enables category 4 in acc. with EN 954-1
to be achieved. A failsafe programmable controller or special master is not
necessary.
The concept and implementation of AS-Interface Safety at Work (AS-Inter-
face SaW) have been tested and certified by TÜV (technical testing associa-
tion).
This means that the system can be converted to the considerably more
flexible AS-Interface network, which is already available, thus eliminating
the need for the complex, separately implemented emergency stop wiring
that has been necessary up to now.
The following components for direct connection to AS-Interface are
available:
• Safety monitors
• Safety modules
• Emergency-Stop devices
• Light curtains
• Laser scanners
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A/B-Technique The new AS-Interface-specification allows the doubling of the number of
nodes on the network from 31 to 62. The 31 addresses that are possible in
an AS-Interface network can be subdivided into two separately independent
subaddresses e.g. in 1A and 1B .
If one uses this feature for all 31 slaves, then it is possible to have a maxi-
mum of 62 nodes on one AS-Interface network. The so-called A/B-Slaves
can have a maximum of four inputs and three outputs.
Another function of the new AS-Interface specification V2.1 is the inte-
grated analog value transfer. Integrated means that a special function block
is not required in order to be able to access the analog values. Accessing
data of analog values is therefore just as easy as with digital values. The use
of integrated analog value transfer is possible with analog nodes, that sup-
port Profiles 7.3 and 7.4.
Fig. 1-11: A/B-Technique
NSA00004
Slave 1 Slave 2A Slave 2B Slave 31
Slave 1 Slave 31
Slave 1A Slave 1B Slave 31BSlave 31A
Mixed operation is also possible:
With A/B slaves max. 62 stations:
So far 31 devices:
System overview
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A5E40534713002A/RS-AA/001 1-29
1.6.4 SIRIUS NET Communication-capable motor starter
SIRIUS NET is the name of the family of communication-capable motor
starters from SIEMENS. SIRIUS NET motor starters are available with
AS-Interface and PROFIBUS-interface, in IP20 degree of protection for use
inside the control panel or distribution panel, and in IP65 degree of protec-
tion for use outside the panel and mounted directly on the machine.
SIRIUS NET motor starters consist of completely pre-wired SIRIUS load
feeders/combination starters. This reduces the installation time and wiring
time to a minimum. All of the necessary inputs and outputs are already on
board. Depending on the design there are many Diagnostic functions that
support the user and owner. This reduces downtime and improves effi-
ciency.
3RA5 AS-Interface load
feeder/combination
starter
The preferred use of AS-Interface 3RA5 load feeder/combination starter is in
central control panels (IP65 degree of protection). It’s busbar (Fastbus)
adapter for 40 mm and 60 mm systems allows for quick installation. With
the connection via busbars, a whole range of 3RA5 load feeders/combina-
tion starters can be supplied with power. AS-Interface and auxiliary power
are simply connected by using a plug with insulation piercing connection
technology. The conductor to the motor can be attached without a terminal
strip by using a 5-pole power connector that attaches directly to the starter.
Due to its consistent plug-in technology a 3RA5 load feeder/combination
starter can quickly be changed out. The 3RA5 load feeder/combination start-
ers are available as direct or reversing starters up to 7.5 kW. For larger loads,
devices can be easily assembled by the customer by using standard SIRIUS
and AS-Interface components.
Load Feeder
3RA5
SIMATIC
ET 200S
SIMATIC
ET 200X
AS-Interface
Compact Starter
ECOFAST
Motor Starter
System overview
SIRIUS System Manual
1-30 A5E40534713002A/RS-AA/001
AS-Interface compact
starter
The AS-Interface compact starter is a starter designed to mount directly on
the machine (IP65 degree of protection). The durable plastic housing also
makes it suitable for use in the roughest industrial environment. With only
two screws it can be mounted on to a mounting plate with very little effort
and at the same time it makes contact with the AS-Interface- and auxiliary
power flat cable through the proven AS-Interface penetration technique. The
main power circuit side is quickly connected to the power bus cable and the
motor circuit. Assemblies with a contactor and circuit breaker (MSP) are
available up to 5.5 kW and with electronic contact element and electronic
overload relay are available up to 2.2 kW either as a direct and as reversing
starter. Two inputs on the starter can accept process signals via M12-socket
and route them to the PLC. Starters with brake contacts for an electrically
operated motor brakes are also optional.
ET 200X The ET 200X distributed I/O system with the wide variety of expansion
modules offers the possibility to provide all of the machines functions
directly on the machine - in IP65/IP67 degree of protection. Whether motor
starter, frequency converter, pneumatic or input/output module, whether in
harsh environments, in extreme time critical applications or a large number
of sensors and loads in one place - the modular SIMATIC ET 200X distrib-
uted I/O system offers the corresponding decentralized solution for every
application in the field. ET 200X consistently provides optimal communica-
tion with the high level system via PROFIBUS-DP. A single basic module
allows the addition of up to 6/7 expansion modules. With the AS-Interface-
Master module in the ET 200X, a mixture of networks can be very easily
attained at a reasonable price. The distributed signals in the installation can
also be optimally incorporated with very little set-up effort. With the intelli-
gent basic module for data preprocessing and control, distribution of self-
supporting and time-critical functions can be realized independent from the
higher level PLC. Only the most important control signals and diagnosis data
is then sent over PROFIBUS. This relieves the network as well as the high
level control. The programing and planning of these types of stations is
done with SIMATIC standard tool STEP7.
ET 200X motor starter The ET 200X motor starter is available in the same designs as the AS-Inter-
face compact starter. That means, as an electro-mechanical starter up to
5.5 kW, electronic starter to 2.2 kW. For further details see above. There is a
hand-held controller available that can also be used with both motor starter
families for activation at prestart-up and for service use.
ET 200S The ET 200S distributed I/O system, using PROFIBUS-DP, offers a plurality
of 2- and 4-channel input/output modules, Technology modules, such as
Standard motor starter, High Feature motor starter and safety technology
that can be configured almost any way you want in a fine modular form. The
modules with IP20 degree of protection are used in central control panels as
well as decentralized panels. All of the voltage potential only needs to be
supplied once. Through simple side-by-side mounting of the terminal mod-
ules the auxiliary power as well as the main power voltage are automatically
transferred. The purely passive terminal modules are the basis for the elec-
tronic modules that mount on them. These electronic modules can also be
removed or added while in the system is running. This safeguards the
accessibility of the machines and installation.
System overview
SIRIUS System Manual
A5E40534713002A/RS-AA/001 1-31
ET 200S motor starter The ET 200S motor starters are completely pre-wired SIRIUS load feeders/
combination starters with short-circuit protection and overload protection.
The required inputs and outputs for control and monitoring are already inte-
grated in the motor starter. The correct function of the motor starter is
monitored without any additional programming and will initiate a clear error
signal via PROFIBUS-DP if needed.
ET 200S SIGUARD The motor starters can be expanded for technical safety applications
(EN 954-1) with the SIGUARD power modules. Emergency-stop buttons,
safety limit switches or other floating contacts from safety devices use a
two channel connection. The functions on the sensor side are in accordance
with the standard and are monitored for, among other things, cross-circuit or
short-circuit. The integrated safety relays also check the proper switching of
the motor starters listed below. Additionally ET 200S Standard motor starter
requires a so-called F-Kit - a front mounted auxiliary contact- (return circuit).
The High Feature motor starter comes with these contacts already factory
installed. A special Connection module needs to be installed at the end of a
safety segment with one or more motor starters. For applications that
require category 3 or 4 (EN 954-1) a redundant infeed contactor needs to be
connected to the connection module (control and monitoring). For applica-
tions that require category 2 the return circuit needs to be closed on the
Connection module by using a jumper.
ET 200S Standard
motor starter
ET 200S Standard motor starter consists of a circuit breaker (MSP) and con-
tactor combination from the SIRIUS S00-Frame size. At a maximum rating of
5.5 kW, the motor starter gets power from the terminal module on the self-
establishing power bus (40 A). All that remains per motor starter is simply
adding the three conductors of the motor load and optional neutral/ground
connection. Distribution wiring on pre-stored terminal blocks is no longer
necessary, since the terminal modules already provide this function.
ET 200S High Feature
motor starter
The ET 200S High Feature motor starter is a new class of load feeder/combi-
nation starter up to 7.5 kW. Motor circuit breaker (MSP) for short-circuit pro-
tection, electronic overload relay for the overload protection, and contactor
or soft start for switching the circuit offer a range of new features:
• The devices in frame size S0 have achieved Type 2 coordination for the
current ratings up to 16 Amps (7.5 kW). That means, that even after a
short circuit in the range of 50 kA the motor starter will not be destroyed
and can still be used. Only light welding of the contacts, without any
deformity worth mentioning and which can be separated by the user, is
permitted.
• The current monitoring in all three phases serves as both the overload
evaluation and as the processing in the high level control. As an alterna-
tive to cyclic current value transmission it is also possible to set of an
upper and a lower limit value for each. These can be used, for example,
for the load dependent, autonomous shutting off of the starter.
• All of the settings, as well as the rated motor current are automatically
transferred to the new starter by the high level controller in the event a
starter needs to be exchanged.
System overview
SIRIUS System Manual
1-32 A5E40534713002A/RS-AA/001
• In the case of an exchange you only need to choose between two starter
types. The electronic overload relay offers an extraordinary adjustment
range (0.3 to 3.0 A and 2.4 to 16 A).
• In some critical applications the process can be more important than the
protection of the motor. That is why under the estimation and supervision
of the user there is the possibility with the High Feature motor starter to
suppress the overload tripping function and continue operation of the
motor starter with the emergency start function.
The quickest assembly through completely pre-wired and simple plug-in
technology were added so that a range of functions could lead to increased
system availability. This makes the starter especially suitable for applications
that contain both time-critical and valuable processes.
ET 200S Failsafe motor
starter
The ET 200S Failsafe motor starter takes the advantages of the High
Feature motor starter and supplements them with the requirements from
the Safety technology. An integrated monitoring function checks whether or
not the contactor opens properly when the motor starter is turned off. For
example, should the contactor be welded and therefore can’t open, the cir-
cuit will be automatically opened by the motor circuit breaker (MSP). It
therefore meets the required redundancy of EN 954-1 for category 4 with-
out any additional mounting or wiring time. You can assign up to 6 separate
safety circuits of different motor starters inside of a single station to each
upstream power module. The control takes place either over a Safety
related control system, for example SIMATIC S7-300F and PROFIBUS-DP
(PROFIsafe) or over a separate safety switching device, for example the
safety monitor from AS-Interface Safety at Work.
The advantage in using the Failsafe motor starter solution lies in the flexible
order of various safety circuits and the integrated switching redundancy in
every starter. The cost to achieve this type of installation with conventional
technology would be much higher. However, if a larger group of motor
starters in one safety segment is needed, then a solution with ET 200S
SIGUARD could be the more favorable one.
For its safety function, the Failsafe motor starter requires that the contactor
contacts are electrically isolated from each other. Therefore, a design with a
softstarter function is not available.
Switch ES motor
starter
The Switch ES motor starter, the easy to use configuration and diagnoses
tool, not only lets you comfortably configure and diagnose the High Feature
motor starter while in operation with an on the spot point-to-point connec-
tion, but also supplies a range of additional information, such as statistics
data. That way the operating hours or the motor current during the last over-
load trip can be called up. Important information on the condition of the
installation can then be derived. The control function also comfortably lets
you test the motor starter without high level control, such as at prestart-up.
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-1
2
3RV1 Circuit breaker/MSP 1)
Section Subject Page
2.1 Specifications/regulations/approvals 2-3
2.2 Device description 2-5
2.2.1 General description 2-6
2.2.2 Operation 2-7
2.2.3 Information on configuration 2-10
2.3 Application and areas of use 2-13
2.3.1 Motor protection 2-13
2.3.2 Transformer protection 2-13
2.3.3 Starter protection 2-13
2.3.4 Motor protection with overload relay function 2-14
2.3.5 Switching direct current 2-15
2.3.6 Main and emergency stop switches 2-15
2.4 Accessories 2-16
2.4.1 Attachable accessories: Overview 2-16
2.4.2 Auxiliary contacts 3RV19 01-.., alarm switch 3RV19 21-111
and auxiliary release 3RV19 .2-....
2-17
2.4.3 Motorized remote-control mechanism 3RV19 .6-.... 2-22
2.4.4 Disconnecting/isolator module 3RV19 .8-1A 2-25
2.4.5 Thru-the door rotary operators 3RV19 .6-.. 2-27
2.4.6 Terminals for "Combination Motor Controller Type E" in acc.
with UL 508
2-33
2.4.7 Enclosures and mounting accessories 2-34
2.4.8 Busbar adapter 8US1 (Fastbus system) 2-39
2.4.9 Isolated 3-phase busbar system 2-43
2.4.10 Link module for connection to a contactor 2-46
1) 3RV1 is known in the North America as a Motor Starter Protector (MSP) and is not UL Listed
as a circuit breaker
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-2 A5E40534713002A/RS-AA/001
2.5 Mounting and connection 2-47
2.5.1 Installation 2-47
2.5.2 Connection 2-48
2.5.3 Device circuit diagrams 2-50
2.6 Dimensional drawings (dimensions in mm) 2-52
2.7 Technical specifications 2-63
2.7.1 General specifications 2-63
2.7.2 Permissible rating of approved devices for North America, u s 2-66
2.7.3 Short-circuit breaking capacity Icn in acc. with IEC 60 947-2 2-68
2.7.4 Limiter function with standard devices for 500 V AC and
690 V AC in acc. with IEC 60 947-2
2-70
2.7.5 Characteristics 2-70
2.7.6 Installation guidelines 2-71
2.8 Application notes for the use of 3RV1 downstream from
frequency converters/inverter with pulsing voltage
2-72
2.8.1 Influences of high frequency currents upon the thermal
overload release
2-72
2.8.2 Other possible influences 2-73
Section Subject Page
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-3
2.1 Specifications/regulations/approvals
Standards • The 3RV1 circuit breaker/MSPs comply with the specifications for circuit
breaker/MSPs in acc. with IEC 60947-2/DIN VDE 0660, Part 101.
• The circuit breaker/MSPs for motor protection comply with the specifica-
tions in acc. with IEC 60947-4-1/DIN VDE 0660, Part 102.
• The auxiliary switches comply with IEC 60947-5-1/DIN VDE 0660
Part 200.
Approvals/
test reports
Confirmation of approvals, test certificates, and characteristics can be
obtained on the Internet/intranet. under
www.siemens.com/sirius/technical-assistance
Terminal markings The terminal markings comply with DIN EN 50 011.
Utilization categories Circuit breaker in acc. with IEC 60947-2: A
Motor starter in acc. with IEC 60947-4-1: AC-3 (main conducting paths)
DC - 11 / AC - 15 (control and auxiliary conducting paths)
Main and emergency
stop switches
The specifications for the main and emergency switches comply with
IEC 60204/DIN VDE 0113 Part 1.
Disconnector
specifications
Disconnector specifications comply with IEC 60947-3.
Shock protection 3RV1 circuit breaker/MSPs are shockproof in acc. with DIN VDE 0106
Part 100, even without accessories. You can find additional information on
the subject of shock protection in the "Switching, Protection and Distribution
in Low-Voltage Networks" manual, p. 37 ff.
Degree of protection The degree of protection of the 3RV1 circuit breaker/MSP is IP20.
In the terminal area of frame sizes S2 and S3, the degree of protection is
IP00, when the lug kits are removed.
Characteristics The time-current characteristics, the current limitation characteristics and
the I2t characteristics have been determined in acc. with IEC 60947 and
DIN VDE 0660.
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-4 A5E40534713002A/RS-AA/001
Conditions of
application
Explosion-proof motors
For motor protection circuit breaker/MSP 3RV10, CLASS 10 and for motor
protection circuit breaker/MSP with overload function 3RV11, CLASS 10:
DIN VDE 0165 and EN 50 019, DMT-Certificate according to directive
94/9 EG (ATEX-Approval).
Nuclear power plants
KTA certificate
Railway vehicles
DINEN50155
Ships and docks
Shipbuilding certificates of classes GL, LRS or DNV.
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-5
2.2 Device description
3RV1 circuit breaker/MSPs are used to switch and protect three-phase
induction motors of up to 45 kW at 400 V AC (100 HP at 600 V AC) and for
loads with rated currents of up to 100 A.
The 3RV1 circuit breaker/MSPs have 3 poles. To achieve the highest degree
of flexibility, auxiliary switches, alarm switches, auxiliary releases, and other
accessories can be easily attached to the circuit breaker/MSPs without
tools.
3RV1 circuit breaker/MSPs and 3RT1 contactors work together both electri-
cally and mechanically. This enables them to be easily and quickly put
together to make load feeders.
Frame sizes 3RV1 circuit breaker/MSPs are available in 4 frame sizes (S00 to S3).
Fig. 2-1: 3RV1 circuit breaker/MSPs (frame sizes S00 to S3)
The following table shows you the frame sizes and the corresponding maxi-
mum rated operational current at a voltage of 400 V AC. The last column in
the table tells you which three-phase induction motor is suitable for which
particular size.
S00 S0 S2 S3
Frame
size Width Max. rated operational
current
Output power of the
three-phase induction
motor
S00 45 mm 12 A 5.5 kW
S0 45 mm 25 A 11 kW
S2 55 mm 50 A 22 kW
S3 70 mm 100 A 45 kW
Table 2-1: Circuit breaker/MSPs, frame sizes S00 to S3
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-6 A5E40534713002A/RS-AA/001
2.2.1 General description
Fields of application The 3RV1 circuit breaker/MSPs are suitable for:
• Motor and plant protection
• Starter protection (short-circuit protection)
• Transformer protection
The 3RV16 11-0BD10 circuit breaker/MSP, frame size S00, is used for fuse
monitoring.
Releases 3RV1 circuit breaker/MSPs have:
• Inverse-time delay, thermal overload releases
• Instantaneous short-circuit releases
The overload releases can be set to the load current.
The short-circuit releases are set permanently to 13 times the rated current,
which allows motors to start up without problems. Circuit breaker/MSPs
used for transformer protection are set to 19 times the rated current to
avoid being tripped by the high inrush current.
When the circuit breaker/MSPs are tripped, in the case of frame size S00
the toggle switch goes into the tripped position, and in the case of frame
sizes S0 to S3 the rotary switch switches to the tripped position. Before it is
switched on again, the rotary switch must be put in the 0 position manually
(reset) to avoid switching to the fault inadvertently.
In the case of circuit breaker/MSPs with a rotary switch, the tripping opera-
tion can also be reported electrically by means of an alarm switch.
Tripping classes In acc. with IEC 947-4-1:
• Frame sizes S00 to S3: class 10
• Frame sizes S2/S3: class 20
Auxiliary release The circuit breaker/MSPs can also be equipped with one of the following
auxiliary releases:
• Shunt release
• Undervoltage release
• Undervoltage release with leading auxiliary contacts
Auxiliary contacts The 3RV1 can use a transverse auxiliary contacts and/or a side mounted
auxiliary contacts (Section 2.4 Accessories).
Shock protection All frame sizes S00 to S3 are touch safe according to DIN VDE 0106
part 100. Additional protection covers are offered for frame sizes S2 and S3.
• Frame size S2, S3: terminal covers for box terminals
• Frame size S3: terminal covers for lug and bar connection
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-7
Other accessories Other accessories for circuit breaker/MSPs:
•Alarm switch
• Disconnecting module
• Isolated 3-phase busbar system
• Busbar adapter
• Rotary switches
• Terminals for "Combination Motor Controller Type E" in acc. with UL 508
• Housing and front plates
2.2.2 Operation
Current setting Using a screwdriver, set the load rated current (current setting) Ie on the
scale of the 3RV1.
The proper dial setting will depend how the 3RV1 will be installed. There are
two determining factors:
1. Stand-alone installation: without a directly mounted contactor and clear-
ance left and right of a minimum 10 mm.
2. Side-by-side installation: with a directly mounted contactor and clear-
ance left and right of less than 10 mm. This is the typical installation
method.
Note the two possible dial markings on the dial:
• Dash mark: Is the dial marking used when the 3RV1 is being applied in
stand-alone installation
• Triangle mark: Is the dial marking used when the 3RV1 is being applied in
side-by-side installation
In both cases the ambient temperature may be +60 °C and the complete
current range can be used up to the highest setting. The relevant dial mark-
ing (Dash or Triangle) should be set according to the required current set-
ting. At temperatures over +60 °C current derating is necessary. The maxi-
mum allowable current setting for an ambient temperature of +70 °C can be
determined by a slightly longer setting line on the current scale.
Fig. 2-2: Current adjustment Ie adjustment (example: frame size S00)
360° o.k.
RV-00222
Ie
max. + 60 °C
max. + 70 °C
A
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-8 A5E40534713002A/RS-AA/001
Warning
The adjusting knob can be turned 360° clockwise. You can only turn it coun-
terclockwise within the adjustment range.
A setting over the marked current scale is not permitted
Sealing the
adjustment scale
You can prevent unauthorized adjustment of the current setting by placing a
transparent cover over it and sealing it.
Fig. 2-3: Sealing the adjustment scale (example: frame size S00)
Switches The state of the circuit breaker/MSP can be determined by the position of
the switch:
Fig. 2-4: Tripped position, 3RV (example: frame size S0)
3RV19 08-0P
Frame size Switch STOP ON Tripped
S00 Toggle switch OFF ON OFF
S0, S2, S3 Rotary switch OFF ON TRIPPED
Table 2-2: Contact position indicators of the circuit breaker/MSPs
RV-01050
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-9
Locking the circuit
breaker/MSPs
You can prevent the circuit breaker/MSP from being switched on by unau-
thorized persons by securing the switching mechanism (toggle switch or
rotary switch) with a padlock (shackle diameter 3.5 to 4.5 mm)
The device can only be locked in the Off position.
Fig. 2-5: Locking the toggle and rotary switch (example: frame size S00 and S0)
Resetting after a tripping operation
When the circuit breaker/MSP trips, the switch goes into the tripped position.
You use the switch to close the circuit again.
In the case of frame sizes S0 to S3, the rotary switch must be manually
turned to the OFF position after the device trips. Then the circuit breaker/
MSP can be turned on again.
In the case of frame sizes S2 and S3, it is possible to switch on and off using
a motorized remote-control mechanism (see Section 2.4, Accessories).
Testing overload
tripping
The following table shows you how overload tripping of the circuit breaker/
MSP can be tested:
Ø 3.5... 4.5 mm
RV-00251
S00 S0
Drawing Step Procedure
1Switch the toggle switch/rotary
switch from 0 to 1.
2/3 Put a screwdriver in the test
opening and push it to the left.
Overload tripping is in working
order when the toggle switch
switches from 1 to 0 (frame
size S00) or goes into the
tripped position (frame sizes S0
to S3).
Table 2-3: Testing overload tripping (example: frame size S00)
1
2
RV -00223
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-10 A5E40534713002A/RS-AA/001
2.2.3 Information on configuration
Short-circuit protection The short-circuit releases of the 3RV1 circuit breaker/MSPs execute a three-
phase isolation of the faulty branch circuit from the network and prevent any
further damage.
With a short-circuit breaking capacity of 50 kA or 100 kA a voltage of
400 V AC, the switches are considered to be short circuit-proof, since
higher short-circuit currents are not to be expected where the switches are
installed.
Backup fuses are only required if the short-circuit current at the point of
installation exceeds the rated short-circuit breaking capacity of the circuit
breaker/MSPs.
You will find the short-circuit breaking capacity for other voltages and the
sizing of any required fuse listed in Section 2.7, Technical specifications.
Conditions of
application
3RV1 circuit breaker/MSPs are climate-proof. They are intended for use in
closed areas where there are no hazardous operating conditions such as
dust, corrosive fumes or destructive gases.
Appropriate housings are available as an accessory for use in dusty and
damp areas (see Section 2.4).
Selection Operational currents and starting currents can vary even in motors of the
same power. The motor powers listed in the tables are to serve only as
guide values. Most important when selecting the correct circuit breaker/
MSPs are the specific starting data and rating of the motor to be protected.
This also applies to circuit breaker/MSPs used for transformer protection.
Phase loss
sensitivity
The phase loss sensitivity of the circuit breaker/MSP ensures that it trips in
the event of the loss of a phase and the resulting overcurrents in the other
phases.
During normal operation, the device should have a three-pole load. To pro-
tect single-phase loads or direct current loads, all 3 main conducting paths
should be switched in series
Explosion protection Note
In the case of a three-pole load, at 3 to 8 times the set current, the release
time deviates by a maximum of ± 20 % and therefore complies with the
requirement of DIN VDE 0165 and EN 50019.
The 3RV10 circuit breakers (MSP) for motor protection, CLASS 10, and the
3RV11 circuit breakers for motor protection with overload relay function,
CLASS 10, have ATEX-Approval according to EU-requirement 94/9/EG
(DMT-Certificate).
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-11
Characteristics The tripping characteristic of the inverse-time delayed overload release
(thermal overload release, a-release) is valid for direct current and
alternating current with frequencies of 0 to 400 Hz.
The characteristics are valid for tripping operations from a cold state. From a
warm state, the release times can be reduced up to 75 % depending on the
motor current and the ambient temperature.
The tripping characteristics of the instantaneous electromagnetic overcur-
rent releases (short-circuit release, n-release) is based on the rated current
In, which in the circuit breaker/MSPs with adjustable overload releases is
also the upper value of the adjustment range.
The following is a chart of the time-current characteristic:
Fig. 2-6: Time-current characteristic, chart
Time-current characteristics, current-limiting characteristics and I2t charac-
teristics can be requested directly from your sales representative, if neces-
sary.
10
5
2
1
10 000
5000
2000
1000
500
200
100
50
20
10
5
0,2
1
0,5
0,02
0,1
0,05
0,002
0,01
0,005
100
60
40
2
0,6 0,8 12346810
0,001 20 30 40 80 x n
NSB 00004a
min
s
60
Current
two-pole
load
Class 10
three-pole
load
Class 10
Opening time
three-pole
load
Class 20
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-12 A5E40534713002A/RS-AA/001
Frequency sensitivity of
the short-circuit
releases
The characteristics of the short-circuit releases apply to frequencies of
50/60 Hz. For lower frequencies, such as 16 2/3Hz, for higher frequencies
up to 400 Hz, and for direct current, appropriate correction factors have to
be taken into account.
The following characteristic curve illustrates the frequency sensitivity of the
short-circuit releases:
Fig. 2-7: Frequency sensitivity of the short-circuit releases
The increase in tripping current is approximately 40 % for DC voltage.
40
30
20
10
0
-10
-20
-30
050
100 200 250 300 350 400 Hz150
Tripping current
Change in %
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-13
2.3 Application and areas of use
The tripping characteristics of the 3RV1 circuit breaker/MSPs are designed
primarily to protect three-phase induction motors. The circuit breaker/MSPs
are therefore also referred to as motor protecting switches. In Europe, the
3RV10 circuit breaker/MSPs for motor protection can also be used in the
protection of systems.
2.3.1 Motor protection
Current setting The current of the motor that is to be protected is set on the adjustment
scale. This sets the integrated overload protection of the motor current. The
short-circuit release is set at the factory to 13 times the value of the rated
current (the highest value on the current scale) of the circuit breaker/MSP.
This ensures problem-free startup and reliable protection of the motor.
Phase loss
sensitivity
The phase loss sensitivity of the circuit breaker/MSP ensures that it trips in
the event of the loss of a phase and the resulting overcurrents in the other
phases.
CLASS10/CLASS20 Circuit breaker/MSPs of frame sizes S00 to S3 (0-100 A) with thermal over-
load releases comply with tripping class 10 (CLASS 10). Circuit breaker/
MSPs with the CLASS 20 tripping characteristic are also available for frame
sizes S2 and S3 (11-100 A) for longer startup conditions.
2.3.2 Transformer protection
Inrush current In the case of primary protection of control transformers, the high inrush
currents that occur when the transformers are switched on often result in
the unwanted tripping of the protective devices.
Therefore, the 3RV14 circuit breaker/MSPs have overcurrent releases for the
protection of transformers that are set at the factory to approximately 19
times the rated current. This makes it possible to protect transformers in
which the inrush currents reach peak values of up to 30 times the rated cur-
rent with circuit breaker/MSPs in the primary circuit. The 3RV14 for trans-
former protection come in frame sizes S0 and S2 (0 to 40 A).
In the case of control transformers with low inrush current (SIEMENS 4AM
control transformers, for example), this is not required. 3RV10 circuit
breaker/MSPs can be used. In these lower inrush applications the 3RV14
devices are not UL listed for the protection of transformers.
2.3.3 Starter protection The 3RV13 starter protection switches are circuit breakers without overload
releases. They are used together with a contactor and overload relay if the
circuit breaker/MSP is not to be triggered in the case of overload tripping.
Like the 3RV10 the short-circuit release is set at 13 times the rated current.
The 3RV13 are available in frame sizes S0 to S3 (0 to 100 A).
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-14 A5E40534713002A/RS-AA/001
2.3.4 Motor protection with overload relay function
3RV11 circuit breakers/MSPs with the overload relay function are available
for frame sizes S0, S2, and S3.
Description The 3RV11 devices have the same overload and short-circuit trip characteris-
tics as the 3RV10. However the overload release doesn’t effect the switch-
ing mechanism of the circuit breaker/MSP. In the event of an overload, the
circuit breaker/MSP remains switched on.
The overload release uses two side mounted auxiliary contacts
(1NO + 1NC), that switch in the event of an overload. The auxiliary contacts
can be used for signalling or can be used to disconnect a downstream con-
tactor. After the circuit breaker/MSP has cooled down, the auxiliary contacts
are reset automatically.
Caution
In the overload range, the circuit breaker/MSP does not protect itself with
the overload relay function. You must therefore ensure that the power is
safely disconnected by means of a downstream switching device (e.g. a
contactor).
Fixed link: auxiliary
contacts with circuit
breaker/MSP
Note
The auxiliary contacts are factory mounted to the 3RV11 circuit breaker/MSP
on the right side and cannot be removed.
Diagrams
Fig. 2-8: Circuit breaker/MSP with overload relay function (frame sizes S0 to S3)
S0: 3RV11 21-.... S2: 3RV11 31-.... S3: 3RV11 42-....
TEST
RV-00588
TEST
RV-00589
TEST
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-15
2.3.5 Switching direct current
The 3RV1 circuit breaker/MSPs for alternating current are suitable for
switching direct current. However, you must note the maximum permissible
DC voltage per conducting path. In the case of higher voltages, series con-
nection of 2 or 3 conducting paths is required.
Response thresholds The response thresholds of the overload releases remain unchanged. The
response thresholds of the short-circuit releases are increased with direct
current by approximately 40 %.
The following table lists suggestions for switching direct current:
Double ground fault Note
In the case of the circuit with 2-pole switching and an ungrounded system, it
is assumed that even in the event of a double ground fault that bridges two
contacts, safe disconnection still occurs.
2.3.6 Main and emergency stop switches
Since the circuit breaker/MSPs meet the requirements for disconnectors in
acc. with IEC 60947-3 and the additional test requirements for circuit
breaker/MSPs with disconnector features in acc. with IEC 60947-2, they can
be used with the appropriate accessories as main and emergency stop
switches. They must also comply with DIN VDE 0113.
Suggestion Circuit
breaker/
MSP
Frame
size
Max.
permissible
direct voltage EI
Meaning
3RV1. S00 to
S3
150 V DC 2-pole switching
Ungrounded system
If a ground fault can be excluded, or if every
ground fault is immediately corrected
(ground-fault monitoring), the maximum per-
missible DC voltage can be tripled.
3RV1. S00 to
S3
300 V DC 2-pole switching
Grounded system
The grounded pole must always be assigned
to the individual conducting path so that in
the event of a ground fault there are always
2 conducting paths in series.
3RV1. S00 to
S3
450 V DC 1-pole switching
Grounded system
3 conducting paths in series.
The grounded pole should be assigned to
the non switched conducting path.
Table 2-4: Suggestions for switching direct current
L-
M
L
+
L-
L
M
+
L-L
M
+
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-16 A5E40534713002A/RS-AA/001
2.4 Accessories
2.4.1 Attachable accessories: Overview
Auxiliary switches, alarm switches, auxiliary releases and other accessories
can be easily attached to the circuit breaker/MSPs without tools, as
required.
Accesso-
ries
Function/use Width Attach
to
Transverse
auxiliary
switch
The contacts of the auxiliary switches close and open together with the main
contacts of the circuit breaker/MSP. Variants:
• 1 changeover contact
• 1 NO + 1 NC contact
• 2 NO contacts
Width of
the circuit
breaker/
MSP
remains
the same
Front
Electroni-
cally opti-
mized
transverse
auxiliary
switch
One transverse auxiliary switch can be attached for each circuit breaker/MSP:
Variants:
• 1 changeover contact
Lateral
auxiliary
switch
One lateral auxiliary switch can be attached for each circuit breaker/MSP:
• 1 NO + 1 NC contact
• 2 NO contacts
• 2 NC contacts
• 2 NO + 2 NC contacts
9mm
9mm
9mm
18 mm
Left side
Alarm switch
for frame
sizes S0, S2
and S3
One alarm switch can be attached at the side of the circuit breaker/MSPs with
rotary switches.
The alarm switch has two contact systems:
• One contact system (1 NO + 1 NC) reports a general
tripping operation, irrespective of whether it was caused by a short cir-
cuit, overload or auxiliary release.
• The other contact system (1 NO + 1 NC) only switches in the event of a
short circuit tripping operation.
To reset the circuit breaker/MSP after a short circuit, the alarm switch must be
reset manually after the cause of the error has been eliminated.
18 mm
Shunt
release
Remote release of the circuit breaker/MSP:
• Via PLC: The coil of the release should be connected to the voltage only
briefly.
• Especially suitable for emergency stop disconnection by means of appro-
priate emergency stop switches in acc. with DIN VDE 0113.
18 mm Right
side
Accesso-
ries can-
not be
attached
on the
right of a
circuit
breaker/
MSP
with a
relay
function
(3RV11).
Under-
voltage
release
Trips the circuit breaker/MSP in the event of a voltage interruption (e.g. when
the power plug is removed) and prevents the motor starting up inadvertently
when the voltage returns.
Under-
voltage
release with
leading
auxiliary
contacts
2 NO
Function and use, see undervoltage release.
Additional function:
The auxiliary contacts isolate the undervoltage release from the power
system on both sides in the event of breaking or a tripping operation and
thus prevent voltage distortion to the control circuit when the switch is in
the off position.
It is possible to reset the circuit breaker/MSP because the contacts reset.
Table 2-5: Attachable accessories
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-17
2.4.2 Auxiliary contacts 3RV19 01-.., alarm switch 3RV19 21-111 and auxiliary release 3RV19 .2-....
The maximum configuration for each 3RV1 circuit breaker/MSP is one trans-
verse auxiliary contact, one side mounted auxiliary contact with 2 contacts,
one alarm switch, and one auxiliary release. An alternative to the transverse
auxiliary contacts and one side mounted auxiliary contact with 2 contacts
would be to use a side mounted auxiliary contact with 2 NO + 2 NC. So
with any one circuit breaker/MSP a maximum of 4 auxiliary contacts with
auxiliary release can be used.
Possible combinations The following combinations of auxiliary switches and alarm switches or of
auxiliary switches are possible:
• Auxiliary contacts with 2 contacts and alarm switches can be installed
individually or together. The side-mounted auxiliary contact is installed on
the left of the alarm switch.
• Transverse and lateral auxiliary switches can be combined. Maximum of
4 auxiliary contacts is possible.
• One auxiliary release can be attached on the right for each circuit breaker/
MSP
Accesso-
ries
Function/use Width Attach
to
Disconnect-
ing module
for frame
sizes S0 and
S2
The supply is fed to the circuit breaker/MSP via the disconnecting module.
A connector which can only be removed when the circuit breaker/MSP is
switched off isolates the circuit breaker/MSP from the power system on
3poles.
The shock-protected isolation position is easily visible and is secured by a pad-
lock to ensure that the connector cannot be used during maintenance work,
for example.
Width of
the circuit
breaker/
MSP
remains
the same
Upper
side/ line
side
Motorized
remote-con-
trol mecha-
nism
for frame
sizes S2 and
S3
The circuit breaker/MSPs can be opened and closed via the remote-controlled
mechanism by means of electrical commands. This enables a load or system
to be disconnected from and then reconnected to the power system from an
operator control panel.
The circuit breaker/MSP can be locally disconnected from and reconnected to
the remote-control mechanism.
148 mm —
Rotary
switch
extension for
the door
The rotary switch extension for the door consists of a knob, a drive coupling
and an extension shaft. They comply with IP65. The door interlock prevents
the enclosure door being opened inadvertently when the switch is in the on
position. The off position can be secured with a maximum of 3 padlocks.
Depends
on the
application
Front
mount
Table 2-5: (cont.) Attachable accessories
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-18 A5E40534713002A/RS-AA/001
Mounting the
auxiliary contacts
The auxiliary switches, alarm switches, and auxiliary releases are mounted
in the same way for all frame sizes:
Transverse auxiliary contacts (3RV19 01-1D, -1E, -1F, -1G, -2E)
Fig. 2-9: Mounting the transverse auxiliary switch (frame size S00)
Side-mounted auxiliary contacts (3RV19 01-..)
Undervoltage release (3RV19 .2-....)
Fig. 2-10: Mounting/removing the side mount auxiliary contacts/undervoltage release
(example: frame size S00)
3RV1901-1D
3RV1901-.E
3RV1901-1F
3RV1901-1G
2
1
34
1
2
RV -01084
3RV1901-.A
3RV1901-.B
3RV1901-.C
3RV1901-.J
1
2
1
3RV19.2-1A..
2
3RV19.2-1C..
3RV19.2-1D..
2
3
3
3
1
1
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-19
Voltage ranges of the
auxiliary releases
One undervoltage release or shunt release can be installed for each circuit
breaker/MSP. The following voltage ranges are possible:
Auxiliary release Frequency
Undervoltage release DC
24 V
AC 50 Hz AC 60 Hz
24 V
110 V
—
230 V
400 V
415 V
500 V
—
120 V
208 V
240 V
—
480 V
—
Undervoltage release
with leading
auxiliary contacts 2NO
230 V
400 V
415 V
240 V
—
480 V
Shunt release AC 50/60 Hz
100 % ED 1)
1)Transformer operational voltage of the lower mark of the voltage range at 0.85 (Tu = 60 °C)
is valid for 100 % (continuous) duty cycle only at AC 50/60 Hz
AC 50/60 Hz; DC
5 sec.. ED 2)
2)Transformer operational voltage of the lower mark of the voltage range at 0.9 (Tu = 60 °C) is
valid for 5 seconds duty cycle at AC 50/60 Hz and DC
20 – 24 V
90 – 110 V
200 – 240 V
350 – 415 V
500 V
20 – 70 V
70 – 190 V
190 – 330 V
330 – 500 V
500 V
Table 2-6: Voltage ranges of the auxiliary releases
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-20 A5E40534713002A/RS-AA/001
Mounting the alarm
switch
The following table explains how the 3RV19 21-1M alarm switch is mounted
onto the circuit breaker/MSP (frame sizes S0, S2 and S3):
Drawing Step Procedure
1Press and hold down the trans-
port safety button on the inside
of the alarm switch.
2Then press the blue RESET
button on the front of the alarm
switch.
3Hook the alarm switch onto the
circuit breaker/MSP.
4Move the alarm switch towards
the circuit breaker/MSP until
you hear it click into place.
Table 2-7: Testing overload tripping (example: frame size S0)
2
3
1 2
3RV 19 21-1M
3
4
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-21
Alarm switch
(signalling switch)
signals
The alarm switch has two signals:
• Tripped (short-circuit, overload or tripping through a shunt trip)
• Short circuit signal (short circuit only)
The following table lists the signals, the status of the alarm switch, and the
procedure required:
Drawing Status Procedure
Tripped signal
Circuit breaker/MSP is
in the tripped position
Alarm switch:
LED is Red
RESET button (blue):
remains depressed
Switch off (Off position) and
then switch on again (On posi-
tion of the circuit breaker/
MSP)
Short circuit
Circuit breaker/MSP is
in the tripped position
Alarm switch:
LED is Red
RESET button (blue):
pushed out
Push in the RESET-button
(blue) on the Alarm switch
then switch the circuit
breaker/MSP off (Off posi-
tion) and
then switch it back on again
(On position of the circuit
breaker/MSP)
Table 2-8: Alarm switch with tripped signal and short circuit signal
21
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-22 A5E40534713002A/RS-AA/001
2.4.3 Motorized remote-control mechanism 3RV19 .6-....
The motorized remote-control mechanism is available for
230 V AC, 50/60 Hz and 24 V DC
• Frame size S2: Inmax = 50 A
• Frame size S3: Inmax = 100 A
Mounting and
connection
The following table shows you how to mount and connect the motorized
remote-control mechanism:
Drawing Step Procedure
1Remove the Allen key from the
cover of the motorized remote-
control mechanism.
2Use the Allen key to change the
selector switch to "Manual".
3/4 Undo the 2 screws and remove
the cover.
5/6 Undo the 4 screws on the remote-
controlled mechanism, and
remove it.
(Pozidriv 2).
Table 2-9: Mounting the remote-control mechanism (example: frame size S2)
1
3
3
4
2
MANUAL
AUTOMATIC
2
5(4 x)
6
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-23
7Screw the frame onto the mount-
ing surface using 4 screws M4
(Frame size S2), M5 (Frame size
S3)
8/9 Attach the circuit breaker/MSP
using 2 screws.
Attention:
Use screws 14 mm in length.
10 Attach the ground wire.
11 Connect the main and control
wires to the circuit breaker/MSP.
12 If desired, set MANUAL RESET:
Remove the screw from the
RESET lever.
13-15 Put the remote-control mecha-
nism module into place,
making sure that the driver covers
the knob on the circuit breaker/
MSP, and screw it on.
Drawing Step Procedure
Table 2-9: (cont.) Mounting the remote-control mechanism (example: frame size S2)
7
9
9
7
8
S2: M4 / S3: M5
M5 (4 x)
3RV19 21-1M
15
12
Manual-
RESET
14
13
(4 x)
Automatic-
RESET
10
11
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-24 A5E40534713002A/RS-AA/001
Warning
Do not set the "Automatic" position or operate the remote-control mecha-
nism when open! There is a risk of injury!
Manual RESET Remove the screw from the RESET lever (step 12)
16-18 Screw the control wires for the
remote-control mechanism onto
the connector, and insert it.
19 Set the current.
20/21 Put the cover on, and screw it
tightly.
22 Use the Allen key to switch to
AUTOMATIC and replace the Allen
key in the cover.
Drawing Step Procedure
Table 2-9: (cont.) Mounting the remote-control mechanism (example: frame size S2)
16
17
21
21 22
(22)
20
18
19
UC
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-25
2.4.4 Disconnecting/isolator module 3RV19 .8-1A
The disconnecting/isolator module is suitable for creating a visible isolating
distance. The isolating connector can only be removed in a deenergized
state. The isolating distance can be secured with padlocks when open.
Disconnecting modules are available for the circuit breakers/MSPs of frame
sizes S0 and S2.
Mounting sequence for
the disconnecting/
isolator module and
Transverse auxiliary
contacts
Attention
The disconnecting/isolator module covers the terminal screws of the trans-
verse auxiliary switch. We therefore recommend that you use the lateral
auxiliary switches or that you only install the disconnecting module once the
transverse auxiliary switch has been wired.
Mounting The modules are mounted in the same way for frame sizes S0 and S2.
The following diagrams show you how to mount the disconnecting module.
Example shown for frame size S0 (3RV1928-1A):
Fig. 2-11: Mounting the disconnecting module (example: frame size S0)
1
3
2
3RV19 28-1A
3RV1. 2
5
4
7
8
8
6
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-26 A5E40534713002A/RS-AA/001
Disconnecting and
locking
The disconnecting/isolator module can be locked and sealed or secured with
two padlocks if the connector is removed during maintenance work, for
example. The disconnecting/isolator module for frame size S0
(3RV19 28-1A) can use a padlock with a max. locking arm diameter of 6 mm,
for frame size S2 (3RV19 38-1A) a padlock with a max. locking arm diameter
of 9 mm can be used. The circuit breaker/MSP itself can also be secured
with a third padlock.
Fig. 2-12: Locking the disconnecting module (example: frame size S0)
Terminal cover
(frame size S2)
A terminal cover (3RT1936-4EA2) is available for the disconnecting module
in frame size S2 (3RV1938-1A) that protects the contacts from dirt and pro-
vides additional shock protection.
Fig. 2-13: Locking the disconnecting module and mounting the cover (frame size S2)
1
3
2
5
5
4
4
3RV19 38-1A
4
2
1
33RT19 36-4EA2
3RV1. 3
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-27
2.4.5 Thru-the door rotary operators 3RV19 .6-..
Thru-the-door rotary operators are available for frame sizes S0, S2, and S3.
They consist of a lockable rotary handle with a detachable door coupling, an
extension shaft, and a connector for the switch drive.
There are two basic designs available. The thru-the-door rotary operator
3RV19 26-0. for standard applications and the thru-the-door rotary operator
3RV19 .6-2. for harsh conditions. Both designs have an IP65 rating and can
be locked in the OFF-position with up to three padlocks.
Both operators are available with either black/grey and/or red/yellow for
emergency-stop handle styles.
The thru-the-door rotary operator for harsh conditions also meet the discon-
nection requirements according to IEC 60 947-2.
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-28 A5E40534713002A/RS-AA/001
Thru-the door rotary operator 3RV19 26-0.
Mounting
Fig. 2-14: Mounting the thru-the-door rotary operator 3RV19 26-0. (example: frame size S2)
6
7
min. 16 mm
max. 20 mm
3
1
2
4
5
3RV19 26-0B, -0C: 130 mm
3RV19 26-0K, -0L: 330 mm
0.7 ... 0.9 Nm
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-29
Opening the door The following table shows you how the cubicle door can be opened using
the thru-the-door rotary operator:
Opening the door with
great force
Note
If the circuit breaker/MSP is in the ON position and the door is opened with
a force >150 N to 200 N, the cap of the extension shaft is separated from
the rotary switch of the circuit breaker/MSP to prevent the circuit breaker/
MSP being destroyed.
The circuit breaker/MSP remains in the ON position.
Fig. 2-15: Operation note: Thru-the-door rotary operator 3RV19 26-0.
Drawing Procedure
To open the cubicle door, set the
circuit breaker/MSP to O (OFF).
This releases the extension shaft
from the rotary switch and allows
the door to be opened.
If you want to open the enclosure
door during operation, you can
override the procedure by press-
ing the button at the side of the
rotary knob (step 1).
To close it during operation, press
the button again so that the exten-
sion shaft snaps into place again.
Table 2-10: Opening a enclosure door using the thru-the-door rotary operator
2
1
1
2
ca.150 ... 200 N
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-30 A5E40534713002A/RS-AA/001
The extension shaft must then be remounted on the circuit breaker/MSP
and the rotary switch extension for the door as follows:
Locking When the rotary switch is in the OFF position, it can be secured with up to
3 padlocks (e.g. during maintenance work on the system).
Fig. 2-16: Locking the thru-the-door rotary operator
Drawing Step Procedure
1Switch the circuit
breaker off, and turn
the rotary switch on
the door to OFF.
2Put the cap of the
extension shaft on the
rotary switch of the cir-
cuit breaker/MSP, and
put the extension shaft
in the cap.
3Close the enclosure
door.
Table 2-11: Mounting the extension shaft
1
3
2
1
1
2
max.
ø 8 mm
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-31
Thru-the door rotary operator for harsh conditions 3RV19 .6-2.
Mounting
Fig. 2-17: Mounting the thru-the-door rotary operator 3RV19 .6-2. (example: frame sizes S0 and S2)
8
7
RV-00593
6
5
RV-00592
3RV19 36: M4
3RV19 46: M5
1.2 ... 1.5 Nm
1.2 ... 1.5 Nm
1
2
RV-00590
RV-00591
3
4
RV-00594
A (mm) B (mm)
3RV19 26 50 111
3RV19 36 60 160
3RV19 46 60 185
C (mm) D (mm)
3RV19 26 163 463
3RV19 36 215 515
3RV19 46 240 540
∅ 46 ±4
∅ 4.5
RV
-0
0596
1.1 - 1.3 Nm
M4: 2.6 - 3 Nm
10
9
(4 x)
11
Mount the 3RV1 frame size S0
by simply snapping it on the
DIN rail
Frame size S0
Frame sizes S2/S3
Mount the 3RV1
frame size S2/S3 by panel mounting (2 x)
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-32 A5E40534713002A/RS-AA/001
Opening the door In order to open the enclosure door, turn the handle in the Off position. The
extension shaft disengages from the handle in this position and the door can
be opened.
Opening the door with
great force
Note
When the circuit breaker/MSP is in the On position (”I“-position) and the
door is opened with a force of ≥ 800 Nm, the operator can be destroyed. In
this case the circuit breaker/MSP remains turned on. Anything under a force
of 800 Nm, the operator will remain locked to the door.
Locking
Fig. 2-18: Locking the thru-the-door rotary operator (example: frame size S0)
The operator handle can be padlocked inside the enclosure. To do this the
circuit breaker/MSP must be in the Off position.
Fig. 2-19: Locking the thru-the-door rotary operator outside the enclosure
The operator can also be locked from outside the enclosure on the rotary
handle.
To do this the circuit breaker/MSP must first be in the Off position. Then pull
out the retractable locking device that is built in the handle. This locking
device can hold up to five padlocks with a maximum locking arm diameter of
6 mm or three padlocks with a maximum locking arm diameter of 8.5 mm.
∅ 3.5 ... 4.5 mm
RV-00595
1
2
12
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-33
2.4.6 Terminals for "Combination Motor Controller Type E" in acc. with UL 508
Since July 16, 2001, 1 inch air clearance and 2 inch creepage distance is
required for "Combination Motor Controller Type E" on the input side in acc.
with UL 508. For the 3RV10 circuit breakers/MSPs frame size S0 use termi-
nal block 3RV1928-1H and for frame sizes S3 use terminal block
3RT1946-4GA07. The 3RV10 in frame size S2 complies with the required air
clearance and creepage distance without a terminal block.
These terminal blocks cannot be used in the S0 frame size at the same time
as the 3RV19.5 3-phase busbars or in the S3 frame size at the same time as
a transverse auxiliary switch.
Attention
Terminal blocks are not required for use in acc. with CSA.
Fig. 2-20: Terminals for "Combination Motor Controller Type E"
3RV19 28-1H
Self-Protected
Combination
Controller Type E
3RT19 46-4GA07
1
2
S3
S0
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-34 A5E40534713002A/RS-AA/001
2.4.7 Enclosures and mounting accessories
Molded-plastic enclosures (IP55) are available if you want to install circuit
breakers/MSPs as single units. All the enclosures are equipped with neutral
and ground terminals. Above and below are two openings that can be
knocked out for cable glands. On the back of the enclosure there are
2 precut openings. All the cable bushings have metric dimensions. The sur-
face casings can be sealed. There is space in the enclosure on the rail for
additional modular terminal blocks.
Widths The widths of the enclosures depend on whether auxiliary releases are used:
• 54 mm: circuit breaker/MSP + side-mount auxiliary contact
• 72 mm/82 mm: circuit breaker/MSP + side-mount auxiliary contact+
auxiliary release
Mounting the surface
mount enclosure
Fig. 2-21: Molded-plastic surface mount enclosure (example: frame size S00)
Model Molded-
plastic... Width Frame size
Enclosure with actuator membrane for toggle
switch
Surface mount 54 mm, 72 mm S00
Flush mount 72 mm S00
Lockable enclosure with rotary switch Surface mount 54 mm, 72 mm
82 mm
S0
S2
Flush mount 72 mm S0
Lockable enclosure with emergency stop rotary
switch (red/yellow)
Surface mount 54 mm, 72 mm
82 mm
S0
S2
Flush mount 72 mm S0
Table 2-12: Enclosures for 3RV1 circuit breakers/MSPs
3
4
1
2
Neutral/ground terminals
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-35
Mounting the
flush mount enclosure
Fig. 2-22: Molded plastic flush mount enclosure (example: frame size S00)
Front plates Molded-plastic-front plates with IP55 degree of protection are suitable for
any housing:
4
4
5
1
223
3
1
Front plates and
accessories Model Frame
size
Front plates With actuator membrane and support for
switch S00
With lockable rotary switch S0, S2, S3
With lockable emergency-stop rotary
switch (red/yellow) S0, S2, S3
Accessories Support for front plate S0
Table 2-13: Front plates for any housings
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-36 A5E40534713002A/RS-AA/001
Mounting the front plates
Frame size S00
Fig. 2-23: Mounting the front plate (example: frame size S00)
Frame sizes S0, S2, S3
Fig. 2-24: Mounting the front plate (example: frame size S0)
3RV19 13-4C 3RV19 13-4B
e.g.
Enclosure door
65
43
5
2
M6
M3 1
VU-01015
65
43
5
2
M6
M3
e.g. Enclosure door
M3 4
1
2
3
3RV19 23-4G
3RV19 23-4.
M3
2
1
a
3RV1. 2 86.5
3RV1. 3 139.0
3RV1. 4 164.5
3RV19 23-4. + 3RV19 23-4G (only for frame size S0)
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-37
Accessories for the housings and front plates
The following accessories are available for the housings and front plates of
the circuit breakers/MSPs:
• Replacement actuator membrane 3RV19 13-7F (for frame size S00)
• Locking device for 3 padlocks 3RV19 13-6B (for frame size S00)
• Emergency-stop button (red/yellow) 3RV19 13-7D (for frame size S00)
• Emergency-stop button (red/yellow) with safety lock 3RV19 13-7E (for
frame size S00)
• Indicator lights 3RV19 03-5. (for frame sizes S00, S0, S2)
Fig. 2-25: Accessories for the enclosures and front plates (frame size S00)
Locking device 3RV19 13-6B (for frame size S00)
The locking device can be used on the inside of the housings or front plates.
To do this, remove the frame of the actuator membrane. The locking device
can be secured with up to 3 padlocks that can prevent the circuit breaker/
MSP from being switched on during maintenance work, for example.
Emergency-stop button 3RV19 13-7. (for frame size S00)
The emergency-stop button is attached to the actuator membrane. When
hit, the circuit breaker/MSP is switched off and the button locks into posi-
tion. You can release the button by turning it or using a key. The circuit
breaker/MSP can then be switched on again.
Indicator lights 3RV19 03-5B (for frame sizes S00, S0, S2)
Indicator lights are available for the housings and front plates of circuit
breakers/MSPs in frame sizes S00, S0, and S2. They contain a glow lamp
and red, green, yellow, orange, and transparent lenses. Indicator lights are
available for the following voltage ranges: 110-120 V, 220-240 V, 380-415 V
and 480-500 V.
3RV19 13-6B
3RV19 13-7D
3RV19 13-7E
1
2
3RV19 13-7F
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-38 A5E40534713002A/RS-AA/001
Installation of the
indicator lights
There is a precut opening on the front of the housing that can be knocked
out to install an indicator light
Fig. 2-26: Indicator light installation in a molded-plastic housing (example: frame size S00)
2
1
16 mm
3RV19 03-5.
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-39
2.4.8 Busbar adapter 8US1 (Fastbus system)
To enable the circuit breakers/MSPs to be mounted without using up too
much space, and to ensure that the infeed is economical in terms of both
time and money, the switches can be mounted directly onto busbar systems
using busbar adapters.
The circuit breakers/MSPs are snapped onto the adapter and connected at
the input side. This prepared unit is mounted directly onto the busbar sys-
tems, thus both attaching it mechanically and establishing electrical contact.
Busbar systems The adapters are suitable for the following systems:
Accessories The following accessories are available for busbar adapters:
• Modules that can be mounted on either side to widen the adapters
• Busbar holder for 3 rails
• Molded-plastic covers for 3 terminals (40 mm system)
• Molded-plastic cover profiles for shock protection
Measurements The following table lists the dimensions of the busbar adapters and acces-
sories.
1) Up to 460 V AC with max. short-circuit breaking capacity of 25 kA
2) Not to be used for voltages < 480 V
short-circuit breaking capacity 480/500/525 V AC
- Up to In=25 A: max. 30 kA
- Up to In=90 A: max. 16 kA
short-circuit breaking capacity 690 V AC: max. 12 kA
Busbar systems with
center-to-center spacing
For copper busbars in acc. with DIN 46 433
Width Depth
40 mm systems 12 mm and 15 mm 5 mm and 10 mm
60 mm systems 12 mm to 30 mm 5 mm and 10 mm
Table 2-14: Busbar systems
System Busbar adapter and
accessories Length Width
For circuit
breakers/MSPs in
frame size
40 mm Circuit breaker/MSP
+ lateral auxiliary switch
121 mm
121 mm
45 mm
55 mm
S00, S0
S00, S0
Circuit breaker/MSP 139mm 55mm S2
Circuit breaker/MSP 182 mm
182 mm
70 mm
72 mm
S3 (to 400 V)1)
S3 (480 to 690 V)2)
Side module 139 mm
182 mm
13.5 mm
13.5 mm
S2
S3
60 mm Circuit breaker/MSP 182 mm 45 mm S00, S0
182mm 55mm S2
182 mm
182 mm
70 mm
72 mm
S3 (to 400 V)1)
S3 (480 to 690 V)2)
Side module 182 mm 13.5 mm S00 to S3
Table 2-15: Dimensions of the busbar adapters and accessories
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-40 A5E40534713002A/RS-AA/001
You can find additional information about load feeders on busbar systems in
Chapter 5.
Mounting circuit
breakers/MSPs on a
busbar system
Frame sizes S00/S0
The following illustrations show you how to mount circuit breakers/MSPs in
frame sizes S00 and S0 onto busbar adapters (8US1) and how to remove
them again, using frame size S00 as an example:
Fig. 2-27: Mounting circuit breakers/MSPs on busbar adapters (frame sizes S00 and S0)
10 mm
8US1. .1-5D
Link module
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-41
Mounting circuit
breakers/MSPs on a
busbar system
Frame sizes S2/S3
The following illustrations show you how to mount circuit breakers/MSPs in
frame sizes S2 and S3 onto a busbar adapter:
Fig. 2-28: Mounting circuit breakers/MSPs on busbar adapters (frame sizes S2 and S3)
S2
8US1. 61-5FP08
1
8US11 11-4SM00
6-9 Nm
2
3
4
8
5
7
6
S3
(3x)
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-42 A5E40534713002A/RS-AA/001
Mounting
accessories
The following illustration shows you how to mount accessories for busbar
adapters for frame sizes S00 to S2:
• Side module
• Device holder
• Extension piece
• Outgoing terminal rail (for frame sizes S00 and S0 only)
Fig. 2-29: Accessories for busbar adapters (frame sizes S00 to S2)
Outgoing terminal rail
Extension piece
40 mm
1
2
1
2
Side module
Device holder
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-43
2.4.9 Isolated 3-phase busbar system
For 3RV1 frame sizes S00, S0, and S2, 3-phase busbars can be used to
quickly and easily provide line side feeding when mounting circuit breakers/
MSPs on to DIN rail. There is only one power supply, via a feed-in terminal.
The 3-phase busbar systems are safe from fingers and are shock protected
DIN VDE 0106 Part 100. They are rated for the short-circuit stress that can
occur on the output side of the connected circuit breakers/MSPs.
Fig. 2-30: 3-phase busbar system (example: frame size S00)
Rated operational
voltage/current
Versions The 3-phase busbars take 2 to 5 circuit breakers/MSPs, depending on the
model. There are busbars with more generous spacing for circuit breakers/
MSPs with accessories attached on the side
3-phase busbar
3RV19 15-1CB
Protective cap
3RV19 15-6AB
Feeder lugs, connecton from
below 3RV19 15-5B
Feeder lugs, connecton from
above (3RV1915-5A))
Spacer
Rated operational voltage 690 V
Rated current Frame sizes S00, S0: 63 A
Frame size S2: 108 A
Table 2-16: Rated operational voltage/current
Frame size of
the circuit
breaker/MSP
Spacing Models
S00, S0 45 mm For 2, 3, 4, or 5 circuit breakers/MSPs
55 mm For 2, 3, 4, or 5 circuit breakers/MSP + acc.
63 mm For 2 or 4 circuit breakers/MSPs + accessories
S2 55 mm For 2, 3, or 4 circuit breakers/MSPs
75 mm For 2, 3, or 4 circuit breakers/MSPs + accessories
Table 2-17: Types of 3-phase busbars
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-44 A5E40534713002A/RS-AA/001
Combination of
frame sizes S00
and S0
Circuit breakers/MSPs in frame sizes S00 and S0 vary in height and depth.
They therefore cannot be combined on one busbar. You can combine two
busbars for circuit breakers/MSPs in frame sizes S0 and S00 using an exten-
sion piece.
Extending the bus It is possible to extend the busbars by clamping the connecting lugs of a
another bus (turned 180°) under the terminals of the last circuit breaker/MSP
(see the section on mounting).
Attention
Note the current-carrying capacity of the busbars when you extend them.
Accessories The following accessories are available for the isolated 3-phase busbar sys-
tem:
• Feeder lugs from above (3RV1915-5A for S00, 3RV1925-5AB for S0,
3RV1935-5A for S2)
• Feeder lugs from below (3RV1915-5B for S00, S0)
• Connector
A connector links two 3-phase busbars over a space of 45 mm for circuit
breakers/MSPs in frame size S0 (left) and frame size S00 (right).
• Protective cap for connecting lugs (3RV19 15-6AB)
Protective caps provide shock protection for spare slots. To extend the
bus, remove the protective caps.
Feeder lugs 3-phase feeder lugs make it possible to have greater conductor cross-sec-
tions than on the circuit breaker/MSP itself.
Tightening torque: 2 to 4 Nm (17.6 to 35.2 lb·in).
Feeder lugs – connec-
tion from below
Attention
The feeder lugs with connection from below is clamped on instead of a cir-
cuit breaker/MSP. Make sure you check how much space you require when
planning the 3-phase busbars.
Frame size of
the circuit
breaker/MSP
Connec-
tion Conductors Conductor
cross-section
S00, S0 From above Single- or multi-core
Finely stranded with wire end
ferrule
AWG
2.5 to 25 mm2
4 to 16 mm2
12 to 4
S00, S0 From below Single- or multi-core
Finely stranded with wire end
ferrule
AWG
6 to 25 mm2
4 to 16 mm2
10 to 4
S2 From above Single- or multi-core
Finely stranded with wire end
ferrule
AWG
2.5 to 50 mm2
1.5 to 35 mm2
14 to 0
Table 2-18: Conductor cross sections of the 3 phase feeder lugs
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-45
Mounting the 3-phase
busbars
Fig. 2-31: Mounting the isolated 3-phase busbar system (frame sizes S00 to S0)
Frame size S0
Screw connection
Frame size S00
Cage-clamp
Frame size S00
Screw connection Turned
180°
3RV19 15-5B
3RV19 15-6AB
3RV19 15-1CB
3b
3a
3c
3
1
1
2
3RV19 25-5AB
3RV19 15-5B
3RV19 15-6AB
3RV19 15-1CB
8WA20 11-1DG30
Turned
180°
3RV19 15-5A
3RV19 15-1CA
3RV1 Circuit breaker/MSP
SIRIUS System Manual
2-46 A5E40534713002A/RS-AA/001
Fig. 2-32: Mounting the isolated 3-phase busbar system (frame size S2)
2.4.10 Link module for connection to a contactor
Link Module
Circuit breaker/
MSP-Contactor
When assembling a combination starter (load feeder) a link module between
the circuit breaker/MSP and the contactor is needed to provide both an elec-
trical and mechanical connection. The following types of link modules are
available:
Frame size S2
Screw connection
3RV19 35-5A
3RV19 35-6A
3RV19 35-1.
3RV19 35-1C
Operating voltage
Contactor
Frame size
Contactor
Frame size
Circuit breaker/MSP
AC and DC S00 S00
S00 S0
S0 S0
S2 S2
S3 S3
Table 2-19: Link module circuit breaker/MSP - contactor
3RV1 Circuit breaker/MSP
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-47
2.5 Mounting and connection
2.5.1 Installation
Mounting position You can install the 3RV1 circuit breakers/MSPs in almost any position.
Snap-on mounting The circuit breakers/MSPs are mounted by snapping them onto 35 mm rails
that comply with DIN EN 50 022. The circuit breakers/MSPs with a frame
size of S3 require a rail with an installation height of 15 mm. Alternatively,
they can also be snapped onto 75 mm rails.
Fig. 2-33: Mounting the circuit breakers/MSPs onto the rail
Panel mounting The circuit breakers/MSPs can be attached to a flat surface with 2 screws.
For circuit breakers/MSPs in frame sizes S00 and S0, two push-in lugs
(3RB1900-0B) (pack of 10) are also required.
Circuit breakers/MSPs in frame sizes S2 and S3 can be screwed directly
onto a base plate.
Fig. 2-34: Screw-on mounting of the 3RV1 (example: frame size S00)
S00
RV-00298
1
2
1
1
2
DIN EN 50022/23
S3
DIN EN 50022
RV-00226
3RB19 00-0B
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-48 A5E40534713002A/RS-AA/001
2.5.2 Connection
Tools The following items are required to connect the circuit breakers/MSPs:
• Frame sizes S00 to S2: Pozidriv 2 screwdriver
• Frame size S3: Allen key (4 mm)
Conductor
cross-sections
The typical SIRIUS conductor cross-sections apply (see Section 1.5.4
"Conductor cross-sections").
Screw-type terminals 3RV1 circuit breakers/MSPs with frame sizes S00 and S0 have terminals
with captive screws and terminal washers that enable you to connect
2 conductors, even if they have different cross-sections.
The box terminals of the circuit breakers/MSPs of frame sizes S2 and S3 can
also take 2 conductors with different cross-sections. With the exception of
circuit breakers/MSPs of frame size S3, which have terminal screws with a
4 mm Allen screw, all the terminal screws can be tightened using a standard
screwdriver or a Pozidriv screwdriver (size 2).
You can remove the box terminals from circuit breakers/MSPs with a frame
size of S3 to connect conductors with ring-tongue or connecting bars.
A terminal cover 3RT19 46-4EA1 is available as shock protection and to
ensure that you comply with the required creepages and clearances when
the box terminals are removed.
Soldering pin
connector
Circuit breakers/MSPs in frame size S00 can be soldered onto printed circuit
boards by means of a soldering pin connector. A soldering pin connector is
available for the main contacts only (3RV19 18-5A) or for the main contacts
and the transverse auxiliary contacts 1 NO +1 NC (3RV19 18-5B).
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-49
Mounting the
soldering pin adapters
The soldering pin adapters are clamped above and below in the screw-type
terminals of the circuit breakers/MSPs. The power supply can also be taken
to the printed circuit boards via cables.
Fig. 2-35: Circuit breaker/MSP, soldering pin connector (frame size S00)
1
1
1
1
2
4
3
2
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-50 A5E40534713002A/RS-AA/001
2.5.3 Device circuit diagrams
Frame size S00
Fig. 2-36: Device circuit diagram (frame size S00, example: circuit breaker (MSP) for motor
protection 3RV10)
Frame sizes S0 to S3
Fig. 2-37: Device circuit diagram (frame sizes S0 to S3, example: circuit breaker (MSP) for motor
protection 3RV10)
max. 10 A
31L3L2L1
6
4
2T3
T2T1
5
11
14 12
3RV1901- 1D U
D2
D1
3RV1902-.A..
U
D1
D2 08
07
3RV1912-.C..
14
13 21
22
3RV1901-.E
C2
C1
3RV1902-.D..
I >> I >>
I >>
3RV1901- 1G
33 41
34 42
3RV1901-.A
4333
4434
3RV1901-.B
4232
41
31
3RV1901-.C
3RV1901-.J
13 21 31 43
14 22 32 44
2313
2414
3RV1901-1F
34
33 41
42
3RV1901-.A
4333
4434
3RV1901-.B
4232
4131
3RV1901-.C
max. 10 A
31L3L2
L1
64
2T3T2
T1
5
11
14 12
3RV1901-1D U
D2
D1
3RV1902-.A..
U
D1
D2 08
07
3RV1922-.C..
14
13 21
22
3RV1901-.E C2
C1
3RV1902-.D..
I >> I >>I >>
78
77 85
86
58
57 65
66
3RV1921-1M
3RV1901-1G
3RV1901-.J
13 21 31 43
14 22 32 44
3RV1901-1F
2313
2414
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-51
Circuit breaker/MSP
with overload relay
function
Frame sizes S0 to S3
Fig. 2-38: Circuit breaker/MSP with overload relay function, device circuit diagrams (frame sizes S0
to S3)
max. 10 A
31L3L2L1
64
2T3
T2T1
5
I >> I >>I >>
98
97 95
96
34
33 41
42
3RV1901-.A
4333
4434
3RV1901-.B
4232
4131
3RV1901-.C
3RV1901-.J
13 21 31 43
14 22 32 44
11
14 12
3RV1901-1D
14
13 21
22
3RV1901-.E
3RV1901-1F
23
13
2414
3RV1901-1G
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-52 A5E40534713002A/RS-AA/001
2.6 Dimensional drawings (dimensions in mm)
Circuit breaker/MSP 3RV1
Fig. 2-41: 3RV10 31, 3RV13 31, 3RV14 31 (frame size S2)
Fig. 2-42: 3RV10 4, 3RV13 4 (frame size S3)
Fig. 2-39: 3RV10 11, 3RV16 (frame size S00) Fig. 2-40: 3RV10 21, 3RV13 21, 3RV14 21 (frame size S0)
1) Side-mount auxiliary contacts, 2-pole 7) Drilling pattern
2) Alarm switch (S0 to S3) or side-mount auxiliary contacts, 4-pole (S00 to S3) 8) 35 mm rail in acc. with EN 50022
3) Auxiliary release 9)
Mounting onto 35 mm rail, 15 mm high, in acc. EN 50 022
or
with EN 50 022
or 75 mm rail in acc. with EN 50023
4) Transverse auxiliary switch
5) Push-in lugs for screw mounting 10)4 mm Allen screw
6) Only with undervoltage release with leading auxiliary switch 11)Lockable in 0 position with shackle (3.5 to 4.5 mm in
diameter
1) 11) 3) 4)5)
8)
NSB 00026c
45
90
70
76
918
62
5
45 12
45
3,5
6)
2)
18
25
5
105
7)
11)
2) 5) 4)
8)
3)1)
NSB00027b
45
14
12
90
97
45 556
80
91
45
69
18 18
72
9
5
25
106
7)
20
5518 18
45
85
109
121
127
5
8
132
144
140
89
125
1) 2)
3) 4)
8)
NSB00028a
11)
9
5
30
130
7)
45
7018 18
116
165
150
5
7
8
132
153
157
146
10)11)
1) 2) 3)
4)
9)
NSB00029b
169
9
5
30
155
7)
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-53
3RV11 circuit breaker/MSP with overload relay function
Fig. 2-45: 3RV11 42 (frame size S3)
1) Side-mount auxiliary contacts, 2-pole
2) Alarm switch or side-mount auxiliary contacts, 4-pole
3) Block for overload relay function
4) Transverse auxiliary switch
5) Push-in lugs for screw-type mounting
6) Drilling pattern
7) 35 mm rail in acc. with EN 50 022
8) Mounting onto 35 mm rails, 15 mm high, in acc. with EN 50 022 or 75 mm rails in acc. with EN 50 023
9) 4 mm Allen screw
10)Lockable in 0 position with shackle (3.5 to 4.5 mm in diameter)
Disconnecting/isolator module
Fig. 2-43: 3RV11 21, 3RV16 (frame size S0) Fig. 2-44: 3RV11 (frame size S2)
45
45
12
90
97
555
80
91
45
69
20
72 4)
7)
11) 5) 3)
2)1)
NSB00030b
18
9
5
25
106
6)
55
20
20
45
90
140
109
121
127
58
132
144
125
3)
4)
7)
11)
NSB00031c
2)1)
18
9
5
30
130
6)
70
90
20
45
116
150
57
8146
132
153
157
165
9) 3) 4)
8)
10)
NSB00032c
2)
1)
169
18
9
5
30
155
6)
Fig. 2-46: 3RV19 28-1A (for frame size S0) Fig. 2-47: 3RV19 38-1A (for frame size S2)
51
94
45
NSB00033a
96
144
55
NSB00034a
149
57
121
190
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-54 A5E40534713002A/RS-AA/001
Molded-plastic panel/surface mount enclosure
Fig. 2-48: 3RV19 13-1.... (for frame size S00)
a) 3RV19 13-1CA00: 85 mm
3RV19 13-1DA00: 105 mm
1) Knockout opening for M25
2) Knockout opening for rear M20 cable routing
b) with 3RV19 13-7D: 146.5 mm
with 3RV19 13-7E: 166.5 mm
The dimensions relate to the mounting surface
3) With safety lock
4) Max. shackle diameter for padlock is 8 mm
5) Indicator light 3RV19 03-5.
c) with 3RV19 13-7D: 64 mm
with 3RV19 13-7E: 84 mm
6) Locking device 3RV19 13-6B
7) Emergency-stop button 3RV19 13-7
d) The dimensions relate to the mounting surface
NSB 00035c
a)
77,5
45 19
145 - 148
4,5
88
7)
b) 99
b) 100,5 b) 143 d) 190
b)
c)
105
55
13
11 5)
1) 2)
4)
6)
3)
Fig. 2-49: 3RV19 23-1.... (for frame size S0) Fig. 2-50: 3RV19 33-1.... (for frame size S2)
a) 3RV19 23-1CA00: 85 mm
3RV19 23-1DA00: 105 mm
1) Knockout opening for M32 (left) and M40 (right)
2) Knockout opening for rear M32 cable entry
1) Knockout opening for M25 3) Opening for padlock with a max. shackle diameter of 8 mm
2) Knockout opening for rear M20 cable entry 4) Indicator light 3RV19 03-5.
3) Opening for padlock with a max. shackle diameter of 8 mm
4) Indicator light 3RV19 03-5.
150
18
181
235
250
7
25
2932
3)
NSB 00037c
1) 2)
4)
19
45
2)
145 - 148
4,5
155
a) 126 18
NSB 00036c
3)
1) 4)
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-55
Cast-Aluminum panel/surface mount enclosure
Fig. 2-51: 3RV19 23-1.A01 for circuit breaker/MSP, frame size S0
Molded-plastic flush mount enclosure
Molded-plastic front plate
Fig. 2-54: 3RV19 13-4C (frame size S00)
160
170
135
52
116
105
1)
2)
2)
NSB 01088a
ON
I
O
OFF
O
M 25
M 25
2)
1) Leuchtmelder 3RV19 03-5.
2) Ausbrechöffnungen
für Verschraubung M25
1) Indicator light 3RV19 03-5.
2) Knockout opening for M25
Fig. 2-52: 3RV19 13-2DA00 (frame size S00) Fig. 2-53: 3RV19 23-2DA00/-2GA00 (frame size S0)
105
1)
max. 7
12 87
2)3)
95
1) Leuchtmelder 3RV19 03-5.
2) Ausbrechöffnungen für M25
3) Ausbrechöffnungen für M20
105 95
max. 6
12 87
1)2)3)
1) Leuchtmelder 3RV19 03-5.
2) Ausbrechöffnungen für M25
3) Ausbrechöffnungen für M20
1) Indicator light 3RV1903-5
2) Knockout opening for M25
3) Knockout opening for M20
1) Indicator light 3RV1903-5
2) Knockout opening for M25
3) Knockout opening for M20
40
NSB 00039a
85 56,5 10
12
62
70
4,5
ø 7
1)
1) Indicator light 3RV1903-5.
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-56 A5E40534713002A/RS-AA/001
Molded-plastic Front plate and Support
Fig. 2-55: 3RV19 23-4B, 3RV19 23-4E (frame sizes S0, S2, S3); 3RV19 23-4G (only for frame size S0)
Soldering pin adapters for main and auxiliary contacts
Fig. 2-56: 3RV19 18-5A/-5B (frame size S00)
40
NSB 00042a
85 56,5 10
1812
62
70
7,4ø 3,5
1)
1) Indicator light 3RV1903-5.
45
NSB00041
13,4
12
13,1
5
8,4
14,4 14,4
8,4
14,4
14,4
97,49
1039
59
49
5
2
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-57
Thru-the-door rotary operators
Fig. 2-57: 3RV19 26-0. (short shaft for circuit breaker/MSP, frame sizes S0, S2, S3)
Fig. 2-58: 3RV19 26-0. (long shaft (with support) for circuit breaker/MSP, frame sizes S0, S2, S3)
NSB 01089b
min. 55
2)
1)
5
45
66
19 15
1 ... 4
17
33
max. 327
34,5
1) Abschließbar in Nullstellung mit Bügeldurchmesser max. 8 mm
2) Befestigung mit Überwurfmutter
NSB01107
3
22,5
24,3
4)
min. 45
max. 130
4) Lieferzustand mit Wellenlänge von 130 mm durch Kürzen der Welle anpassbar
1) Lockable in 0 position with shackle (max. 8 mm in diameter)
2) Affixed with screw caps
4) Supplied with a shaft length of 130 mm: adaptable by shortening of the shaft
NSB 01090b
16
5) min. 55
2)
1)
5
45
66
19 15
1 ... 4
17
33
max. 327
34,5
5) Erdungsklemme 35 mm2 und Haltewinkel für 330 mm Welle
1) Abschließbar in Nullstellung mit Bügeldurchmesser max. 8 mm
2) Befestigung mit Überwurfmutter
NSB01108
3)
min. 45
3
22,5
24,3
max. 330
3) Lieferzustand mit Wellenlänge von 330 mm durch Kürzen der Welle anpassbar
3) Supplied with a shaft length of 330 mm: adaptable by shortening of the shaft
1) Lockable in 0 position with shackle (max. 8 mm in diameter)
2) Affixed with screw caps
5) Ground terminal 35 mm2 and support bracket for 330 mm shaft
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-58 A5E40534713002A/RS-AA/001
Thru-the-door rotary operators for harsh conditions
Fig. 2-59: 3RV19 .6-2. (frame sizes S0, S2, S3)
min. 11 mm without shaft
NSB01091a
E F max. 341
min. 42 62 14
6
A
75
G
D
max. 330
min. 31
40
65
B
J
CH
6
Type Frame
Size
Measurements
Drilling pattern GroundDrilling pattern Door
A
125
170
194
B
111
144
180
C
50
60
60
D
77
87
100
E
112
162
187
F
50
50
48
G
27
27
25
H
9
10
10
J
42
47
53
S0
S2
S3
3RV1926-2
3RV1936-2
3RV1946-2
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-59
Terminals for "Combination Motor Controller Type E" in acc. with UL 508
Motorized remote-control mechanism
Fig. 2-62: 3RV19 .6-3AP0 for circuit breaker/MSP
a) 3RV19 36-3AP0, frame size S2, 211 mm
b) 3RV19 46-3AP0, frame size S3, 236 mm
Fig. 2-60: 3RV19 28-1H (frame size S0) Fig. 2-61: 3RT19 46-4GA07 (frame size S3)
27
72
121
74
45
NSB 01228
10
NSB 01229
168
70
84
NSB00044
RESET I>
AUTOMATIC REVISION
MANUAL
I
SI EMENS
∅5
87
182
224
148
112
a)
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-60 A5E40534713002A/RS-AA/001
Busbar adapter shoes
Fig. 2-67: 8US11 11-4SM00 (for circuit breaker/MSP, frame size S3)
for 40- and 60-mm-systems
Fig. 2-63: 8US10 .1-5DJ07 (for circuit breaker/MSP,
frame sizes S00/S0)
Fig. 2-64: 8US10 61-5FK08 (for circuit breaker/MSP,
frame size S2)
Adapter width:
8US10 51-5DJ07: 45 mm
8US10 61-5DJ07: 55 mm
1) for 40-mm-busbar system
2) Side module 8US19 98-2KB00
1) for 40-mm-busbar system:
width: 12 to 15 mm
thickness: 5 and 10 mm
NSK-8186
55
139
68
1
2
13,5
142
40
40
NSK-8187
32
50
1)
Fig. 2-65: 8US12 51-5DM07 (for circuit breaker/MSP,
frame sizes S00/S0)
Fig. 2-66: 8US12 61-5FM08 (for circuit breaker/MSP,
frame size S2)
1) for 60-mm-busbar system 1) for 60-mm-busbar system
2) Side module 8US19 98-2BM00 2) Side module 8US19 98-2BM00
NSK-8188
55
13,5
182
68
1
2
185
NSK-8189
32
60
60
60
NSE00449
182
70
14
60
60
137
162
174
116
42
40 40
23 23
44
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-61
3-phase busbar systems
Fig. 2-70: 3RV19 15-3..
Separation distance 63 mm:
3RV19 15-3AB for 2 circuit breakers/MSPs (length 101 mm)
3RV19 15-3CB for 4 circuit breakers/MSPs (length 227 mm)
Fig. 2-71: 3RV19 35-1. (for circuit breaker/MSP, frame size S2)
Separation distance 55 mm:
3RV19 35-1A for 2 circuit breakers/MSPs (length 111 mm)
3RV19 35-1B for 3 circuit breakers/MSPs (length 166 mm)
3RV19 35-1C for 4 circuit breakers/MSPs (length 221 mm)
Fig. 2-68: 3RV19 15-1... (frame size S00) Fig. 2-69: 3RV19 15-1... (frame size S0)
Separation distance 45 mm: Separation distance 55 mm:
3RV19 15-1AB for 2 circuit breakers/MSPs (length 83 mm) 3RV19 15-2AB for 2 circuit breakers/MSPs with accessories
(length 93 mm)
3RV19 15-1BB for 3 circuit breakers/MSPs (length 128 mm) 3RV19 15-2BB for 3 circuit breakers/MSPs with accessories
(length 148 mm)
3RV19 15-1CB for 4 circuit breakers/MSPs (length 173 mm) 3RV19 15-2CB for 4 circuit breakers/MSPs with accessories
(length 203 mm)
3RV19 15-1DB for 5 circuit breakers/MSPs (length 218 mm) 3RV19 15-2DB for 5 circuit breakers/MSPs with accessories
(length 258 mm)
21
13
64
108
83 128173
218
45
NSB 00055b
21
13
64
108
55
93
148
NSB 00056b
258
203
21
13
64
108
63 101
227
NSB 01092b
31
55
111
221
NSB00057b
165
15
96
166
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-62 A5E40534713002A/RS-AA/001
Fig. 2-72: 3RV19 35-3. (for circuit breaker/MSP, frame size S2)
Separation distance 75 mm:
3RV19 35-3A for 2 circuit breakers/MSPs with accessories (length 121 mm)
3RV19 35-3B for 3 circuit breakers/MSPs with accessories (length 196 mm)
3RV19 35-3C for 4 circuit breakers/MSPs with accessories (length 271 mm)
3-phase feeder lugs
Connector
31
75
271
121
NSB00058b
196
96
166
15
Fig. 2-73: 3RV19 15-5A Fig. 2-74: 3RV19 15-5B Fig. 2-75: 3RV19 25-5AB
Connection from above
(for frame size S00)
Connection from below
(frame sizes S00/S0)
Connection from above
(frame size S0)
Fig. 2-76: 3RV19 35-5A Fig. 2-77: 3RV19 15-5DB
Connection from above (for frame size S2) Frame size S0 (left) and frame size S00 (right)
NSB00060b
31
a
92
14 14
44
73
a) 19 mm for 3RV1.1
a) 23 mm for 3RV1.2
44
14 14
25
54
11471
NSB01093a
NSB00059a
24
44
25
34
NSB00061b
112
91
161
55
81
42,5
NSB 00062c
108
64
21
13
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-63
2.7 Technical specifications
2.7.1 General specifications
Ty p e 3RV1. 1 3RV1. 2 3RV1. 3 3RV1. 4
Specifications
• IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100) Yes
• IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 101) Yes
• IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102) Yes
Frame size S00 S0 S2 S3
Pole number 3
Max. rated current Inmax (= max. rated operational current Ie)A12 25 50 100
Permissible ambient temperature
Storage/transportation °C -50 to +80
Operation °C -20 to +70 1)
Permissible rated current with the following internal cubicle temperature:
• +60 °C %100
• +70 °C %87
Circuit breaker in housing
Permissible rated current with the following ambient housing temperature:
• +35 °C %100
• +60 °C %87
Rated operational voltage UeV690
2)
Rated frequency Hz 50/60
Rated insulation voltage UiV690
Rated impulse strength Uimp kV 6
Utilization category
• IEC 60 947-2 (circuit breaker) A
• IEC 60 947-4-1 (motor starter) AC-3
CLASS In acc. with IEC 60 947-4-1 10 10 10/20 10/20
Direct current short-circuit breaking capacity (time constant τ = 5 ms)
(time constant t = 5 ms)
• 1 conducting path 150 V DC kA 10
• 2 conducting paths in series 300 V DC kA 10
• 3 conducting paths in series 450 V DC kA 10
Power loss (Pv) per circuit breaker In -> to 1.25 A W 5 — — —
Depends on rated current In In -> 1.6 A to 6.3 A W 6 — — —
(Upper setting range) In -> 8 A to 12 A W 7 — — —
In -> to 0.63 A W — 5 — —
Rper conducting path = P/I2×3 In -> 0.8 A to 6.3 A W — 6 — —
In -> 8 A to 16 A W — 7 — —
In -> 20 A to 25 A W — 8 — —
In -> to 25 A W — — 12 —
In -> 32 A W — — 15 —
In -> 40 A to 50 A W — — 20 —
In -> to 63 A W — — — 20
In -> 75 A and 90 A W — — — 30
In -> to 100 A W — — — 38
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-64 A5E40534713002A/RS-AA/001
Ty p e 3RV1. 1 3RV1. 2 3RV1. 3 3RV1. 4
Shock resistance In acc. with IEC 68 Part 2-27 g/ms 25/11 (rectangular and sine pulse)
Degree of protection In acc. with IEC 60 529 IP20 IP20 3)
Shock protection In acc. with DIN VDE 0106 Part
100
protected against touching by fingers
Temperature compensation In acc. with IEC 60 947-4-1 °C -20 to +60
Phase loss sensitivity In acc. with IEC 60 947-4-1 Yes
Explosion protection In acc. with DIN VDE 0165 and EN 50 019 Yes for 3RV10 (Class 10), 3RV11(Class 10)
Isolating function In acc. with IEC 60 947-2 Yes
Main and emergency-stop switch features4) In acc. with IEC 60 204-1
(VDE 0113)
Ye s
Safe isolation between the main circuit and the
auxiliary circuit required for PELV applications
In acc. with DIN VDE 0106 Part 101
•to 400V + 10% Ye s
• to 415 V+ 5 % (higher voltage on request) Yes
Mechanical life Operating
cycles
100,000 50,000
Electrical life 100,000 25,000
Max. switching frequency per hour (motor start-
ups)
1/h 15
1) Reduction in current above +60 °C 3) Connection room IP00
2) With molded-plastic housing 500 V 4) With corresponding accessories
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-65
Conductor cross-sections - main circuit
1) After the box terminals have been removed, lug or busbar connections are also possible.
2) For notes on the Cage Clamp system, see page 1-19.
3) Use an insulation stop for a conductor cross-section ≤ 1 mm2.
4) Associated opening tool 8WA28 03/8WA28 04
Ty p e 3RV1. 3RV1. 2 3RV1. 3 3RV1. 4
Connection type Screw-type terminal Screw-type terminal with box termi-
nal
Terminal screw Pozidriv size 2 Pozidriv size 2 Allen screw 4 mm
Specified tightening torque Nm 0.8 to 1.2 Nm 2 to 2.5 3 to 4.5 4 to 6
Conductor cross-sections, 1 or 2 conductors
Single-core mm² 2 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 16) 2 x (2.5 to 16)
mm² 2 x (0.75 to 2.5)
(max. 4)
2 x (2.5 to 6) - -
Finely stranded with wire end ferrule: mm² 2 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 16) 2 x (2.5 to 35)
mm² 2 x (0.75 to 2.5) 2 x (2.5 to 6)
(max. 10)
1 x (0.75 to 25) 1 x (2.5 to 50)
Stranded mm² 2 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 25) 2 x (10 to 50)
mm² 2 x (0.75 to 2.5)
(max. 4)
2 x (2.5 to 6)
(max. 10)
1 x (0.75 to 35) 1 x (10 to 70)
AWG cables, single- or multi-core AWG 2 x (18 to 14) 2 x (14 to 10) 2 x (18 to 3) 2 x (10 to 1/0)
AWG - - 1 x (18 to 2) 1 x (10 to 2/0)
Ribbon cables (number x width x depth) mm - - 2 x (6 x 9 x 0.8) 2 x (6 x 9 x 0.8)
Removable box terminal 1)
With copper busbars mm - - - 18 x 10
With lug mm² - - - to 2 x 70
Cage Clamp connections2)3)4)
(1 or 2 conn. can be connected) Single-coil
Finely stranded with wire end ferrule
Finely stranded without wire end ferrule
AWG cables, single-core or stranded
mm²
mm²
mm²
AWG
2 x (0.25 to 2.5)
2 x (0.25 to 1.5)
2 x (0.25 to 2.5)
2 x (24 to 14)
-
-
-
-
Max. outer diameter of the conductor insulation: 3.6 mm
Permissible service position Any
In acc. with IEC 60 447 start
command "I" right or above
Auxiliary contacts
Front transverse auxiliary contacts with 1 changeover contact Switching capacity with different voltages
Rated operational voltage UeAC voltage V AC 24 230 400 690
Rated operational current Ie/AC-15 A 4 3 1.5 0.5
Rated operational current Ie/AC-12 Ith A10101010
Rated operational voltage UeDC voltage L/R 200 ms V DC 24 110 220
Rated operational current Ie/DC-13 A 1 0.22 0.1
Front transverse electronically optimized auxiliary contacts with 1 changeover contact
Rated operational voltage UeAC voltage V AC 3 to 60
Rated operational current Ie/AC-14 mA 1 to 300
Rated operational voltage UeDC voltage L/R 200 ms V DC 3 to 60
Rated operational current Ie/DC-13 mA 1 to 300
Front transverse auxiliary contacts with 1 NO + 1 NC, 2 NO contacts
Rated operational voltage UeAC voltage V AC 24 230
Rated operational current Ie/AC-15 A 2 0.5
Rated operational current Ie/AC-12 Ith A2.5 2.5
Rated operational voltage UeDC voltage L/R 200 ms V DC 24 48 60
Rated operational current Ie/DC-13 A 1 0.3 0.15
Side-mount auxiliary contacts with 1 NO + 1 NC, 2 NO, 2 NC, 2 NO + 2 NC and alarm switch
Rated operational voltage UeAC voltage V AC 24 230 400 690
Rated operational current Ie/AC-15 A6431
Rated operational current Ie/AC-12 Ith A10101010
Rated operational voltage UeDC voltage L/R 200 ms V DC 24 110 220 440
Rated operational current IeA 2 0.5 0.25 0.1
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-66 A5E40534713002A/RS-AA/001
2.7.2 Permissible rating of approved devices for North America, u s
In North America the 3RV1 is not approved as a “circuit breaker” and is commonly known as a Motor Starter Protector (MSP). The
SIRIUS 3RV1 series are approved for u/s and can also be used in acc. with UL 508 and C22.2 No.14 with a contactor as a Type F combi-
nation starter. You can use these MSPs as a "Manual Motor Starter" for "Group Fusing" or for "Group Installation" or as a "Combination Motor
Controller Ty p e E ".
3RV1 as a "Manual Motor Starter"
When the 3RV1 is used as a "Manual Motor Starter", it is always with a device for short-circuit protection (upstream short-circuit pro-
tection device). Any fusible link (“group fusing”) or UL 489 listed circuit breaker (“group installation”) can be used as a device for short-
circuit protection. The type and size are selected in acc. with the American NFPA 70 standard, Article 430-53 (c) for adequate protec-
tion of supply wiring.
Accreditation was issued under the following file numbers with the listed data:
u File No. E47705, Product Class NLRV
s Master Contract 165071, Product Class 3211 05
Motor Starter Protector Hp rating Rated current To 240 V AC To AC 480 Y/277 V To AC 600 Y/347 V
For FLA max. InIcu1)Icu1)Icu1)
Type V 1-phase 3-phase A kA kA kA
0.11 to 2 65 65 10
3RV10 11 2.5 65 65 10
3RV16 11-0BD10 115 ½- 3.2 65 65 10
200 1½ 3 4 65 65 10
Frame size S00 230 23 5 65 65 10
460 -7½ 6.3 65 65 10
FLA max. 12 A, 600 V 575/600 -10 8 65 65 10
10 65 65 10
12 65 65 10
0.11 to 3.2 65 65 30
3RV10 21/3RV11 21 4656530
3RV13 21 5656530
115 2- 6.3 65 65 30
Frame size S0 200 37½ 8 65 65 30
230 57½ 10 65 65 30
FLA max. 25 A, 600 V 460 -15 12.5 65 65 30
575/600 -20 16 65 65 30
20 65 65 30
22 65 65 30
25 65 65 30
3RV10 31/3RV11 31 11 to 16 65 50 25
3RV13 31 20 65 65 25
115 3-25 65 65 25
Frame size S2 200 7½ 15 32 65 65 25
230 10 20 40 65 65 25
FLA max. 50 A, 600 V 460 -40 45 65 65 25
575/600 -50 50 65 50 25
11 to 16 65 65 30
3RV10 41/3RV10 42 20 65 65 30
3RV11 42 115 10 -25 65 65 30
3RV13 41/3RV13 42 200 20 30 32 65 65 30
230 20 40 40 65 65 30
Frame size S3 460 -75 50 65 65 30
575/600 -100 63 65 65 30
FLA max. 99 A, 600 V 75 65 65 30
90 65 65 30
100 (99) 65 65 30
Hp rating = output power in horse power (maximum motor power)
FLA = full load amps
1) Corresponds to "short circuit breaking capacity" in acc. with UL
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-67
3RV10.A as "Combination Motor Controller Type E"
Since July 16th 2001, 1 inch air clearance and 2 inch creepage distance is required for a "Combination Motor Controller Type E" on the
input side with UL 508 The 3RV10 in frame sizes S0 and S3 are therefore approved with the terminal blocks listed below in acc. with
UL 508.
The 3RV10 in frame size S2 already complies with the required air clearance and creepage distance as a basic unit. These extended air
clearances and creepage distances are not required for CSA. The terminal blocks are therefore not required for use as a "Combination
Motor Controller Type E" in acc. with CSA. 3RV10’s are certified as "Combination Motor Controller Ty p e E " under the following file num-
bers with the listed data:
u File No. E156943, Product Class NKJH
s Master Contract 165071, Product Class 3211 08
Hp rating = output power in horse power (maximum motor power)
FLA = full load amps
1) Corresponds to "short circuit breaking capacity" in acc. with UL
2) Not required by CSA
Motor Starter Protector Hp rating Rated current To 240 V AC To AC 480 Y/277 V To AC 600 Y/347 V
For FLA max. InIcu1)Icu1)Icu1)
Type V 1-phase 3-phase A kA kA kA
0.11 to 1.6 50 50 30
3RV10 21 2505030
+ 3RV19 28-1H2) 115 2— 2.5 50 50 30
200 37½ 3.2 50 50 30
Frame size S0 230 37½ 4 50 50 30
460 —15 5 50 50 30
FLA max. 22 A, 480 V 575/600 —10 6.3 50 50 30
12.5 A, 600 V 8505030
10 50 50 30
12.5 50 50 30
16 50 50 —
20 50 50 —
22 50 50 —
11 to 16 50 50 25
3RV10 31 20 50 50 25
115 3—25 50 50 25
Frame size S2 200 7½ 15 32 50 50 25
230 10 20 40 50 50 25
FLA max. 50 A, 600 V 460 —40 45 50 50 25
575/600 —50 50 50 50 25
3RV10 41 11 to 16 50 50 30
+ 3RV1946-4GA07 2) 20 50 50 30
115 10 —25 50 50 30
Frame size S3 200 20 30 32 50 50 30
230 20 40 40 50 50 30
FLA max. 100 A, 480V 460 —75 50 50 50 30
75 A, 600 V 575/600 —75 63 50 50 30
75 50 50 30
90 50 50 —
100 50 50 —
Rating of the control switches and alarm switches
Side-mount
auxiliary contact with
1 NO + 1 NC, 2 NO,
2NC, 2NO + 2NC
and alarm switch
Transverse
auxiliary contact with
1 changeover contact
Transverse
auxiliary contact with
1 NO + 1 NC, 2 NO
Max. rated voltage
• In acc. with NEMA u V AC 600 600 240
• In acc. with NEMA s V AC 600 600 240
Continuous current A 10 5 2.5
Switching capacity A600 B600 C300
Q300 R300 R300
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-68 A5E40534713002A/RS-AA/001
2.7.3 Short-circuit breaking capacity Icn in acc. with IEC 60 947-2
The table lists the rated limit short-circuit breaking capacity Icu and the rated service short-circuit breaking capacity Ics of 3RV1 circuit
breakers with different inception voltages and related to the rated current In of the circuit breakers.
The incoming supply of the circuit breakers is permissible at the upper or lower terminals irrespective of the rating.
If the short-circuit current at the installation location exceeds the rated short-circuit breaking capacity of the circuit breaker specified in
the table, a backup fuse is required. You can also use an upstream circuit breaker with a limiter function.
The maximum rated current of this backup fuse is specified in the tables. The rated short-circuit breaking capacity specified for the
fuse then applies.
Circuit breaker/contactor combinations for short-circuit currents of up to 50 kA can be used as fuseless load feeders in acc. with Part 5.
Circuit
breaker
Rated
current In
To 240 V AC 2)To 400 V AC
2)/415 V 3) To 440 V AC 2)/460 V3) To 500 V AC 2)/525 V3) To 690 V AC 2)
Icu Ics Max. Icu Ics Max. Icu Ics Max. Icu Ics Max. Icu Ics Max.
Fuse Fuse Fuse Fuse Fuse
(gL/gG) (gL/gG) (gL/gG) (gL/gG) (gL/gG)
Type A kAkAA kA kA A kAkA A kA kA A kAkAA
3RV10,
3RV16 11-
0BD10
frame size S00
0.16 to 0.8 100 100 •100 100 •100 100 •100 100 •100 100 •
1100 100 •100 100 •100 100 •100 100 •100 100 •
1. 2 5 100 100 •100 100 •100 100 •100 100 •2220
1. 6 100 100 •100 100 •100 100 •100 100 •2220
2100 100 •100 100 •100 100 •1010352235
2.5 100 100 •100 100 •100 100 •1010352235
3.2 100 100 •100 100 •50 10 40 1)3 340 2240
4100 100 •100 100 •50 10 40 1)3340 2240
5100 100 •100 100 •50 10 50 1)3350 2250
6.3 100 100 •100 100 •50 10 50 1)3 350 2250
8100 100 •50 12.5 80 1)50 10 63 1)3363 2263
10 100 100 •50 12.5 80 1)1010 63 3 363 2 263
12 100 100 •50 12.5 80 1)1010 80 3 380 2 280
3RV1. 2
Frame size S0
0.16 to 1.25 100 100 •100 100 •100 100 •100 100 •100 100 •
1. 6 100 100 •100 100 •100 100 •100 100 •100 100 •
2100 100 •100 100 •100 100 •100 100 •8825
2.5 100 100 •100 100 •100 100 •100 100 •8825
3.2 100 100 •100 100 •100 100 •100 100 •8832
4100 100 •100 100 •100 100 •100 100 •6332
5100 100 •100 100 •100 100 •100 100 •6332
6.3 100 100 •100 100 •100 100 •100 100 •6350
8100 100 •100 100 •50 25 63 1)422163 6 350
10 100 100 •100 100 •50 25 80 1)422163 6 350
12.5 100 100 •100 100 •50 25 80 1)422180 6 363
16 100 100 •50 25 100 1)50 10 80 1)10 5 80 4 263
20 100 100 •50 25 125 1)50 10 80 1)10 5 80 4 263
22 100 100 •50 25 125 1)50 10 100 1)10 5 80 4 263
25 100 100 •50 25 125 1)50 10 100 1)10 5 80 4 263
3RV1. 3
Frame size S2
16 100 100 •50 25 100 1)50 25 100 1)12 6 63 5 363
20 100 100 •50 25 125 1)50 25 100 1)12 6 80 5 363
25 100 100 •50 25 125 1)50 15 100 1)12 6 80 5 363
32 100 100 •50 25 125 1)50 15 125 1)10 5100 4 263
40 100 100 •50 25 160 1)50 15 125 1)10 5100 4 263
45 100 100 •50 25 160 1)50 15 125 1)10 5100 4 263
50 100 100 •50 25 160 1)50 15 125 1)10 5100 4 280
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-69
• No backup fuse required because it is short circuit-proof up to 100 kA.
Short circuit-proof up to min. 50 kA.
1 A backup fuse is only required if the short-circuit current at the installation location is > Icu.
2 10 % overvoltage
3 5 % overvoltage
Circuit
breaker
Rated
current In
To 240 V AC 2)To 400 V AC
2)/415 V 3) To 440 V AC 2)/460 V 3) To 500 V AC 2)/525 V 3) To 690 V AC 2)
Icu Ics Max. Icu Ics Max. Icu Ics Max. Icu Ics Max. Icu Ics Max.
Fuse Fuse Fuse Fuse Fuse
(gL/gG) (gL/gG) (gL/gG) (gL/gG) (gL/gG)
Type A kA kA A kA kA A kA kA A kA kA A kA kA A
3RV1. 41
Frame size S3
40 100 100 •50 25 125 1)50 20 125 1)12 6100 6 363
50 100 100 •50 25 125 1)50 20 125 1)12 6100 6 380
63 100 100 •50 25 160 1)50 20 160 1)12 6100 6 380
75 100 100 •50 25 160 1)50 20 160 1)8 4125 5 3100
90 100 100 •50 25 160 1)50 20 160 1)8 4125 5 3125
100 100 100 •50 25 160 1)50 20 160 1)8 4125 5 3125
3RV1.42
Frame size S3
With increased
switching
capacity
16 100 100 •100 50 •100 50 •30158012763
20 100 100 •100 50 •100 50 •30158012763
25 100 100 •100 50 •100 50 •30158012763
32 100 100 •100 50 •100 50 •221110012763
40 100 100 •100 50 •100 50 •18916012680
50 100 100 •100 50 •100 50 •157.5160105100
63 100 100 •100 50 •70 50 200 1)15 7.5160 7.54100
75 100 100 •100 50 •70 50 200 1)10 5160 6 3125
90 100 100 •100 50 •70 50 200 1)10 5160 6 3160
100 100 100 • 100 50 • 70 50 200 1)10 5160 6 3160
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-70 A5E40534713002A/RS-AA/001
2.7.4 Limiter function with standard devices for 500 V AC and 690 V AC in acc. with IEC 60 947-2
The table lists the rated limit short-circuit breaking capacity Icu and the rated service short-circuit breaking capacity Ics with an
upstream standard circuit breaker that fulfills the limiter function at 500 V AC and 690 V AC.
The short-circuit breaking capacity can be significantly increased using the upstream standard circuit breaker with a limiter function.
The circuit-breaker connected downstream, should be set to the rated current of the load. Be sure when you set up circuit breaker
combinations to note to the distances between the grounded parts and the distances between the circuit breakers.
Make sure that the cabling between the circuit breakers is short circuit-proof. You can mount the circuit breakers side by side.
• No backup fuse required because it is short circuit-proof up to 100 kA.
Short circuit proof up to 100 kA.
1) 10 % overvoltage
2) 5 % overvoltage
2.7.5 Characteristics
You can obtain the characteristics for all the setting ranges from our Technical Assistance team by
e-mail: technical-assistance@siemens.com or over the Internet under:
www.siemens.com/sirius/technical-assistance
Standard circuit breaker
with limiter function
Standard circuit breaker To 500 V AC 1)/ 525 V 2)To 690 V AC 1)
Type Rated current InIcu Ics Icu Ics
Rated current InType A kAkAkAkA
3RV13 21-4DC10 3RV10 2 to 1 ••••
Frame size S0 Frame size S0 1.25 ••••
In = 25 A 1.6 ••••
2••5025
2.5 ••5025
3.2 ••5025
4••5025
5••5025
6.3 ••5025
8100 50 20 10
10 100 50 20 10
12.5 100 50 20 10
16 100 50 20 10
20 100 50 20 10
22 100 50 20 10
25 100 50 20 10
3RV13 31-4HC10 3RV10 3 16 100 50 50 25
Frame size S2 Frame size S2 20 100 50 50 25
In = 50 A 25 100 50 50 25
32 100 50 50 25
40 100 50 50 25
50 100 50 50 25
3RV13 41-4HC10 3RV10 4 32 100 50 50 25
Frame size S3 Frame size S3 40 100 50 50 25
In = 50 A 50 100 50 50 25
3RV13 41-4MC10 3RV10 4 50 100 50 50 25
Frame size S3 Frame size S3 63 100 50 50 25
In = 100 A 75 100 50 50 25
90 100 50 50 25
100 100 50 50 25
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-71
2.7.6 Installation guidelines
Rules for installing circuit breakers/MSPs
When mounting circuit breakers/MSPs, the following clearance must be maintained to grounded or
live parts.
Rules for installing circuit breakers/MSPs with limiter function
Circuit breaker/MSP Clearance to grounded or live parts
YX side Z
Type Frame size mm mm mm
3RV1. 1 S00 to 690 V 20 70 9
3RV1. 2 S0 to 500 V
to 690 V
30
50
90
90
9
30
3RV1. 3 S2 to 690 V 50 140 10
3RV1. 4 S3 to 240 V
to 440 V
to 500 V
to 690 V
50
70
110
150
167
167
167
167
10
10
10
30
Standard installation for frame sizes S0, S2 and S3 Installation of frame size S0 for the setting ranges 5.5 - 8 to 20 - 25 A at
690 V
Clearance to grounded or live parts for limiter function in mm Ue [V] S0S2S3
500 Z (side) 10 10 10
Y4050110
X90140167
690 Z (side) 30 10 30
Y5050150
X90140167
3RV1...
3RV1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
NSB 01304a
3RV1...
Z
Y
Z
Y
X
NSB01069
3RV1...
3RV1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
Load sideInfeed side
Wiring module
Frame size S0: 3RV1915-1A
Frame size S2: 3RV1935-1A
Frame size S3: 3RV1943-3D
(NOTICE! Due to the
wiring module always 10 mm
gap between the
circuit-breakers)
NSB01070
3RV1...
3RV1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
Load side
Infeed side
3RV1...
3RV1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
NSB01071
3RV1...
Z
Y
Z
Y
X
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-72 A5E40534713002A/RS-AA/001
2.8 Application notes for the use of 3RV1 downstream from frequency
converters/inverter with pulsing voltage
The use of thermal motor protection devices downstream from frequency
converters/inverters with pulsing voltage results in influences on the switch-
ing devices that could lead to the nuisance tripping of those devices. In the
following examples, practical guidelines are provided for such applications.
2.8.1 Influences of high frequency currents upon the thermal overload release
The thermal overload release on the circuit breakers/MSPs and overload
relays generally consists of a bimetal strip and a heating winding, that heat
up when motor current runs through them. The excessive bending of the
bimetal strip (such as with high motor current) results in the breaking of the
motor circuit.
This style of thermal overload release is set for 50 Hz AC current. So that the
trip point is also only for currents which have the same thermal effect (r.m.s.
value) or are similar to the set current in the required range of the standard.
This would be the case for AC current from 0 to 400 Hz and for DC current.
With high frequency currents, as occurs downstream of converters, the
bimetal strip becomes increasingly hot. This can be attributed to eddy
current loses induced by harmonics and to the Skin effect in the heater
windings. Both lead to the tripping of the overload release even with lower
currents (nuisance tripping!).
The influences are dependent on the frequency of the current. The higher
the frequency of the converter and the lower the adjustable range/rated
current, the higher the reduction of the trip current.
In order for the trip limits to once again fall into the standard range, the over-
load release setting needs to be corrected. The following table shows the
correction factors for the various setting ranges depending on the pulse
frequency of the converters.
Setting range /
Rated current
Pulse frequency [kHz]
0246810121416
3.2 - 50 A 1.00 1.07 1.12 1.16 1.18 1.19 1.21 1.22 1.23
0 .5 - 2 . 5 A 1. 0 0 1. 0 8 1. 13 1. 17 1. 2 1 1. 2 4 1. 2 6 1. 2 8 1.2 9
0 .3 2 - 0 . 4 A 1. 0 0 1. 0 9 1. 15 1. 2 1 1.2 5 1.2 9 1. 3 3 1.3 5 1. 3 7
0.16 - 0.25 A 1.00 1.10 1.17 1.24 1.28 1.33 1.38 1.42 1.46
Table 2-20: Correction factors for the various setting ranges
Circuit breaker/MSP 3RV1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 2-73
Example Circuit breaker/MSP with the setting range of 1.1 - 1.6 A behind a frequency
converter with a pulse frequency of 8 kHz and a r.m.s. value of the motor
current at rated load: 1.2 A.
Set to: 1.2 A x 1.21 = 1.45 A
This compensates for the influences of the high frequency current. The trip
current lays within the standard range.
Attention
Harmonics can cause the r.m.s. value of the motor current to be higher than
the rated motor current. In this case nuisance tripping can still occur despite
the use of the correction factors.
In order to remedy this, the r.m.s. value of the motor current at rated load
needs to be ascertained and used as the basis current for the above
described correction procedure. Only measuring instruments suitable to
ascertain the values are those that can measure the true r.m.s. value up to
the frequencies that appear and can also reproduce them. Devices well suit-
able for this would be hot-wire instruments for example. Moving-iron mea-
suring elements are in fact r.m.s. measuring instruments, but can only be
used for frequencies up to 1 kHz and therefore can’t be used in most of the
above described cases. Common instruments such as a multimeter or a clip-
on ammeter are not suitable for measuring in the above described cases.
2.8.2 Other possible influences
a) Capacitive leakage currents
Despite adjusting the setting, nuisance tripping can still occur in individual
installations. Extensive investigations have shown that installations with
pulsing voltage can also lead to other effects that lower the trip current of
the overload release, such as an increase of current flowing through the trip
element.
A practical example:
Consider an installation that is fed from an inverter with 3 kHz pulse fre-
quency and has motors connected with a 80 m long cable. An analysis of the
actual flowing current shows a ripple amplitude of the motor current with
very high frequency currents (up to 150 kHz) and a peak value of 1.5 A. The
influence on the thermal overload release is still significantly higher than
described in example 1 at these frequencies. Moreover, capacitive leakage
currents appear in this installation due to the length of the cable and the
high frequency. These increase the current that flows through the trip ele-
ment and can lead to nuisance tripping.
In cases where high frequency currents of well over 16 kHz appear and the
procedure described in example 1 no longer leads to success, then you can
proceed as follows. In an overload free operation of the motor the overload
release needs to be set so high that the unit will not trip. After that the
motor needs to run for about 1.5 h at full load. Then the overload release
needs to be reduced to the trip limit and then set about 10 % higher than
Circuit breaker/MSP 3RV1
SIRIUS System Manual
2-74 A5E40534713002A/RS-AA/001
the trip limit. That will compensate for the influences of the installation. You
can then can use the achieved value as a correction factor for similar installa-
tions.
b) Rotational speed control of motors with a response characteristic
controlled Frequency converter
With the adjustment of the linear voltage-frequency-characteristic and a con-
tinual increase in current (see for example operating instructions Micromas-
ter parameter P077 and P078), decreased rotational speed (< 50 Hz) and
constant load torque can lead to the increase of the motor current. With this
adjustment the frequency converters output voltage is not reduced to the
same scale as the output frequency. If this results in nuisance tripping and
can’t be compensated for by a higher setting of the trip release (watch for
motor overload), then minimizing of the current increase or a readjustment
to a quadratic voltage-frequency-characteristic could provide a remedy.
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-1
3
3RT1 Contactors/
3RH1 Control relays
Section Subject Page
3.1 Specifications/regulations/approvals 3-3
3.1.1 Utilization categories 3-3
3.1.2 Positively driven operation 3-7
3.1.3 Safe isolation 3-7
3.1.4 Explanation of terms 3-9
3.2 Device description 3-10
3.2.1 Coil systems S00 to S3 3-12
3.2.2 Short-circuit protection for SIRIUS contactors 3-13
3.2.3 Operation 3-14
3.2.3.1 General information 3-14
3.2.3.2 Contact reliability 3-15
3.2.3.3 Electrical service life 3-16
3.2.3.4 Ambient temperature 3-20
3.3 Application and areas of use 3-23
3.3.1 3RT10 contactors with 3 main contacts for switching motors 3-23
3.3.2 3RT14 contactors with 3 main contacts for switching
resistive loads (AC-1)
3-24
3.3.3 3RT13 and 3RT15 contactors with 4 main contacts 3-25
3.3.4 3RT16 capacitor contactors 3-26
3.3.5 Contactors with an extended operating range 3-28
3.3.5.1 Contactors with series resister (3RH11...-0LA0/3RT10...-
0LA0)
3-28
3.3.5.2 Contactors with electronic control module frame sizes S0 to
S3 (3RT10..-.X40-0LA2)
3-30
3.3.5.3 Contactors with an extended operating range
(3RH1122-2K.40, 3RT1017-2K.4., 3RT102.-3K.40)
3-31
3.3.6 3RH1 control relays 3-32
3.3.7 3RT10 contactor relays for switching motors (interface) and
3RH11 control relays for switching auxiliary circuits
3-33
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-2 A5E40534713002A/RS-AA/001
3.3.8 3RA13 Contactor combinations for reversing 3-35
3.3.9 3RA14 Wye-delta combinations 3-46
3.4 Accessories 3-54
3.4.1 Attachable auxiliary switches for extending the auxiliary
contacts
3-57
3.4.1.1 Terminal markings of the contactors frame sizes S00 to S3 3-62
3.4.1.2 Terminal markings of the contactors and control relays
combined with auxiliary switch blocks
3-64
3.4.1.3 Auxiliary switches that can be attached to 3RH1 control
relays
3-66
3.4.2 Time-delay auxiliary switches 3-69
3.4.2.1 Frame size S00 (3RT1916-2E, -2F, -2G) 3-69
3.4.2.2 Frame sizes S0 to S3 (3RT1926-2E, -2F, -2G) 3-71
3.4.3 Solid-state time relay blocks with semiconductor output 3-72
3.4.3.1 Frame size S00 (3RT1916-2C, -2D) 3-73
3.4.3.2 Frame sizes S0 to S3 (3RT19 26-2C, -2D) 3-74
3.4.4 Additional load module (3RT1916-1GA00) 3-75
3.4.5 Coupling element for frame sizes S0 to S3
(3RH1924-1GP11)
3-76
3.4.6 Surge suppression 3-78
3.4.7 Other accessories 3-83
3.4.7.1 LED module for indicating contactor control
(3RT1926-1QT00)
3-83
3.4.7.2 Auxiliary connecting lead terminal, 3-pole for frame size S3
(3RT19 46-4F)
3-83
3.4.7.3 EMC interference suppression module (3RT19 16-1P..) 3-84
3.4.7.4 Soldering pin adapter for frame size S00 (3RT19 16-4KA.) 3-85
3.4.7.5 Paralleling links (3RT19 .6-4B.31) 3-87
3.4.7.6 Sealing cover (3RT19 .6-4MA10) 3-88
3.4.7.7 Terminal covers for frame sizes S2 to S3 3-89
3.5 Mounting and connection 3-91
3.5.1 Mounting 3-91
3.5.2 Connection 3-94
3.5.3 Changing the magnetic coils 3-98
3.5.4 Changing the contact pieces 3-103
3.6 Dimensional drawings (dimensions in mm) 3-106
3.7 Technical data 3-122
Section Subject Page
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-3
3.1 Specifications/regulations/approvals
Regulations The following regulations apply to 3RT contactors:
• IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100), which includes the
general specifications for low-voltage switching devices.
• IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102), which contains, in
particular, the requirements for contactors and motor starters.
The following regulations apply to 3RH contactor relays:
• IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100), which includes the gen-
eral specifications for low-voltage switching devices.
• IEC 60 947-5-1, EN 60 947-5-1 (VDE 0660 Part 200) which includes, in par-
ticular, the requirements for control equipment and switching elements
for the control, signaling, locking, etc. of switchgear and controlgear.
Standards The following standards apply to the terminal markings of the contactors:
• EN 50 012: terminal markings and identification numbers for auxiliary con-
tact elements of particular contactors (also applies to contactors with a
built-in auxiliary switch block)
• EN 50 011: terminal markings, identification numbers, and identification
letters for particular auxiliary contactors (also applies to auxiliary contac-
tors with a built-in auxiliary switch block)
• EN 50 005: terminal markings and identification numbers, general rules
Approvals/
test reports
Confirmation of approvals and test certificates and characteristics can be
obtained on the Internet/intranet:
https://support.industry.siemens.com/cs/ww/en/ps/16027/cert
Shock protection The shock protection provided is in acc. with DIN VDE 0106, Part 100.
3.1.1 Utilization categories
In acc. with EN 60 947-4-1, the purpose of the contactors and the stress
placed on them is indicated by the utilization category together with details
of the rated operational current or motor output and the rated voltage.
The following tables list the definitions of the utilization categories for low-
voltage switching devices and contactors from IEC 60 947 (VDE 0660).
The rated operational voltages for the various utilization categories are listed
in the low-voltage switching devices catalog.
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-4 A5E40534713002A/RS-AA/001
Utilization category
for AC voltages
Definition of AC-1 to
AC-6b
The definitions of the utilization categories AC-1 to AC-6b for main circuits
can be found in the relevant regulations.
The main areas of application for contactors are:
• AC-3 operation: switching of squirrel-cage motors
• AC-1 operation: switching of resistive loads
• AC-4 operation: plugging, reversing, inching
• AC-6b operation: switching of capacitor banks
Test conditions Test conditions for the various utilization categories:
• In AC-1 operation, the contactor must be able to switch 1.5 times the
rated operational current on and off.
• In AC-3 operation, the starting currents of the motors must be controlled.
In other words, the contactor must be able to switch on 10 times the
rated operational current (Ie), and switch off 8 times the Ie.
• In AC-4 operation, the contactor must be able to switch off or on 12 times
the rated operational current (Ie) and 10 times the Ie. This represents
extremely high stress for contactors because the high starting currents of
the motors have to be switched off.
• In AC-6b operation, the rated values of capacitor loads may be derived
from capacitor switching tests or on the basis of existing experience and
research.
The breaking current is decisive in calculating the electrical service life:
• In AC-1 and AC-3 operation, 1 x Ie must be assumed.
• In AC-4 operation, 6 x Ie must be assumed because the contactor also has
to switch off the motor during startup.
AC Utilization category for
AC voltages
Switching capacity I/IeElectrical service life I/Ie
On Off On Off
AC-1 Non-inductive load or
a slightly inductive load
1. 5 1. 5 1 1
AC-2 Slip ring motors: switch on,
switch off
44 2.52.5
AC-3 Squirrel-cage motors:
switch on, switch off during
the run
10 8 6 1
AC-4 Squirrel-cage motors:
switch on, plugging or
reversing, inching
12 10 6 6
AC-6b Switching of capacitor
banks ——
Table 3-1: Utilization categories, test conditions for AC voltage
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-5
Utilization category
for DC voltages
Definition of
DC-1 to DC-5
The definitions of the utilization categories DC-1 to DC-6 apply to main
circuits for switching DC voltage.
The main areas of application for contactors are:
• DC-3/DC-5 operation: switching of shunt or series motors
• DC-1 operation: switching of resistive loads, resistance furnaces
Note
In the information on DC switching capacity in previous documents, the
utilization categories DC-2 and DC-4 correspond to the current utilization
categories DC-3 and DC-5.
Utilization category
for AC voltage
(auxiliary contact
elements)
Definition of
AC-12 to AC-15
IEC 60 947-5-1/EN 60 947-5-1 (VDE 0660 Part 200) contains the definitions
of the utilization categories AC-12 to AC-15 for switching elements for the
control, signaling, locking, etc. of switchgear and controlgear.
The main areas of application for auxiliary contactors are:
• AC-14/AC-15 operation: switching of contactor coils, solenoid valves,
for example.
• AC-14/AC-12 operation: switching of resistive loads, for example.
DC Utilization category for
DC voltages
Switching capacity I/Ie
Make/break Time constant L/R (ms)
DC-1 Non-inductive load or
a slightly inductive load,
resistance furnaces
1. 5 1
DC-3 Shunt motors:
switching on, plugging,
reversing, inching
42.5
DC-5 Series motors:
switching on, plugging,
reversing, inching
415
Table 3-2: Utilization categories, test conditions for DC voltages
Switching capacity
AC Utilization category for
AC voltage (auxiliary
contact elements)
Make Break
I/IeI/Iecosϕ
AC-12 Control of resistive load and semi-
conductor load in the input circuits
of optocouplers
110.9
AC-14 Control of a small electromagnetic
load (max. 72 VA)
610.3
AC-15 Control of an electromagnetic load
(greater than 72 VA)
10 1 0.3
Table 3-3: Utilization categories, test conditions for AC voltage (auxiliary contact elements)
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-6 A5E40534713002A/RS-AA/001
Rated operational
currents
The rated operational currents for the various utilization categories are listed
in the low-voltage switching devices catalog. The test specifications given in
the table for each utilization category represent the scale for the making and
breaking capacity of the auxiliary contacts.
Example 3RT1016 contactor:
Ie/AC-15 of the auxiliary contact: 6 A/230 V
Making capacity: 10 x Ie/AC-15 = 60 A
• This enables the contactor coil with the current consumption of 60 A to
be switched on.
• Only the holding current is decisive for switching off the contactor coil.
According to regulations, the auxiliary contact must normally be able to
switch off the rated operational current.
Utilization category for
DC voltage (auxiliary
contact elements)
Definition of
DC-12 and DC-13
The DC voltage switching capacity of auxiliary contacts is defined in utiliza-
tion categories DC-12 and DC-13.
The main areas of application for contactors are:
• DC-12: switching of resistive loads (typical application)
• DC-13: switching of inductive loads, such as contactor coils and solenoid
valves
In DC operation, the difference in stress is also determined by the L/R time
constant. This must be specified by the user.
Switching capacity
DC Utilization category for DC voltage
(auxiliary contact elements)
Make Break
I/IeI/IeL/R (ms)
DC-12 Control of resistive load and semi-
conductor load in the input circuits
of optocouplers
111
DC-13 Control of solenoids 1 1 300
Table 3-4: Utilization categories, test conditions for DC voltage (auxiliary contact elements)
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-7
3.1.2 Positively driven operation
Regulations The regulations for positively driven operation are:
SIRIUS contactors comply with these regulations.
Definition: positively
driven contacts
Positively driven contacts are contacts that are mechanically connected with
one another in such a way that the NC contacts and NO contacts can never
be closed at the same time. This means ensuring that there is a distance
between the contacts of at least 0.5 mm throughout the entire service life
of the contactor, even when there is a defect, such as when the contact has
been wrongly welded (ZH 1/457).
Positively driven
operation in the case
of 3RT1/3RH11
Positively driven operation occurs in:
• 3RT101. contactors and 3 RH11 auxiliary contactors in frame size S00 in
both the basic unit and in the auxiliary switch block and also between the
basic unit and the built-on auxiliary switch block
• 3RT1 contactors in frame sizes S0 to S3 between the main contacts and
the normally closed auxiliary contacts. In other words, if the main contact
is welded, the normally closed auxiliary contact will not close.
Positively driven operation does not occur in the case of:
• Electronically optimized auxiliary switch blocks in frame size S00
Positively driven operation is not compulsory for normal controllers. It is,
however, imperative for protective circuits.
3.1.3 Safe isolation
The term "safe isolation" occurs in connection with safety/protective extra-
low voltage (SELV/PELV) and functional extra-low voltage (FELV). Safe isola-
tion reliably prevents voltage that is capable of causing electric shock from
transferring to the safely isolated voltage (e.g. to safety extra-low voltage
that is applied to or switched to the same device).
Safe isolation is also becoming increasingly important due to the more wide-
spread use of electronic systems in high-voltage installations.
Definition Circuits are safely isolated when a single fault does not result in a transfer of
voltage from one circuit to another. Faults to be taken into account are, for
example, a bent or loose conductive part, a bent soldering pin, broken wind-
ing wire, a screw that has fallen out, or a broken partition wall in a device.
• For contactors IEC 60 947-4-1, Appendix H (draft 17B/996/DC)
• For control
relays
IEC 60 947-5-1, Amendment 2, Annex L,
edition 10.1999
• ZH 1/457 Safety rules for controllers on power-operated
presses
•SUVA Accident prevention guidelines of the Schweizer
Unfallversicherungsanstalt (Swiss institute for acci-
dent insurance)
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-8 A5E40534713002A/RS-AA/001
Regulations IEC 61 140 (replacing VDE 0106 Part 101/IEC 536) lists basic requirements
that can be met using safe isolation between circuits in electrical equip-
ment.
Basic requirements are, for example:
• Double or reinforced insulation
• Protective screening
• Combination of double or reinforced insulation and protective screening
The insulation must be resistant to aging throughout the expected service
life.
Circuits without protective extra-low voltage or functional extra-low voltage
do not require safe isolation.
Safe isolation in the
case of 3RT1 and 3RH1
contactors
If the conducting paths of a contactor are operated with different voltages,
the requirements for safe isolation must be met.
In the case of the 3RT1 and 3RH1 contactors, safe isolation is ensured up to
the following voltage:
• The values for the safe isolation between the main power circuit and the
auxiliary circuit/coil connection are found in the following tables:
I Main power circuit - Control circuit
II Main power circuit - Auxiliary circuit
III Control circuit - Auxiliary circuit
S00
Contactor/
Control relay
S0 S2 S3
3-pole devices 690 V* 400 V 400 V 690 V
4-pole devices 400 V 400 V 400 V 690 V
*with unused auxiliary circuit ——
S00 S0 S2 S3
Integ. auxiliary circuit 400 V ———
Front mount auxiliary
circuit
690 V* 500 V 500 V 500 V
Side mount auxiliary
circuit
No 690 V 500 V 690 V
*4-pole auxiliary contact block
S00 S0 S2 S3
Integ. auxiliary circuit 400 V ———
Front mount auxiliary
circuit
690 V* 690 V 690 V 690 V
Side mount auxiliary
circuit
No 500 V 690 V 690 V
*4-pole auxiliary contact block
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-9
IV Auxiliary circuit - Auxiliary circuit (contactor relay)
V Main power circuit - Main power circuit
All the data are power system specifications with 10 % overvoltage in volts [V].
400 V + 10 % corresponds to 415 V + 5 % and 500 V + 10 % corresponds
to 525 V + 5 %.
Attention
In the table, the voltage that can cause electric shock and that must be
safely isolated is critical. If the voltages 400 V and 24 V are to be safely iso-
lated from one another, contactors with safe isolation up to 400 V must be
used between the two points of connection used.
3.1.4 Explanation of terms
Safety extra-low
voltage
Safety extra-low voltage (SELV) allows circuits with a rated voltage of up to
50 V AC or 120 V DC to be operated ungrounded. The higher voltage is
safely isolated from the SELV circuits.
Safety extra-low voltage helps protect people.
Functional extra-low
voltage
Functional extra-low voltage (FELV) allows circuits with a rated voltage of up
to 50 V AC or 120 V DC to be operated. It does not, however, meet the
requirements of safety extra-low voltage and is therefore subject to addi-
tional conditions. FELV is implemented using a ground terminal.
Functional extra-low voltage helps protect devices (e.g. programmable con-
trollers).
PELV PELV (protective extra-low voltage) has the same requirements as safety
extra-low voltage, except for the fact that the circuit and/or exposed conduc-
tive part is/are grounded (so it is basically grounded SELV).
S00
Basic unit - contact
block
690 V* *4-auxiliary contact block
Basic unit 400 V
Contact block 400 V
S00 S0 S2 S3
400V 400V 400V 400V
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-10 A5E40534713002A/RS-AA/001
3.2 Device description
The SIRIUS contactors are components of the SIRIUS modular system and
can therefore offer the typical benefits of SIRIUS when it comes to the
selection of components and the assembly and operation of controllers and
load feeders.
The SIRIUS range of contactors encompasses the following:
• Contactors for switching motors of up to 45 kW/400 V (75 HP/460 V)
• Auxiliary contactors with the contact variants 4 NO, 3 NO +1 NC, and
2NO + 2NC
• Contactor relays for system-specific cooperation with electronic
controllers
• Contactors for particular applications:
- Contactors with 4 main contacts
- Capacitor switching contactors
- Contactors for switching resistive loads up to 140 A
- Contactors with an extended operating range
- Contactor combinations
Frame sizes The SIRIUS range of contactors covers everything up to 45 kW (75 HP) in
4 sizes. Each frame size covers multiple standard motor ratings:
Fig. 3-1: Frame sizes of the 3RT10 contactors
Performance ranges The following table specifies the performance ranges for the frame sizes of
the 3RT10 and 3RT12 contactors:
S00 S0 S2 S3
Frame size S00 S0 S2 S3
Order-Number 3RT10.. 3RT10.. 3RT10.. 3RT10..
15 16 17 23 24 25 26 34 35 36 44 45 46
P/AC-3/400 kW 3 4 5,5 4 5,5 7,5 11 15 18,5 22 30 37 45
up to 400 V: up to 500 V:
Ie/AC-3 A 7 9 12 9 121725324050658095
Width mm 45 45 55 70
Table 3-5: Performance ranges of the 3RT10/3RT12 contactors
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-11
The following table provides an overview of the existing variants of the 3RT contactors and 3RH con-
trol relays:
1) Pre-wired and tested
Design Frame size
3RT10 contactors AC/DC operation
To operate motors, 3-pole, up to 45 kW/400 V (75 HP/460 V)
Ie/AC-1 up to 40 °C: up to 120 A up to 690 V
S00 to S3
3RT14 contactors AC/DC operation
To switch resistive loads, 3-pole
Ie/AC-1 up to 40 °C: up to 140 A to 690 V
S3
3RT13 contactors AC/DC operation, 4 main contacts (NO contacts)
To switch resistive loads, up to 92 kW/400 V
Ie/AC-1 up to 40 °C: up to 140 A to 690 V
S00 to S3
3RT15 contactors AC/DC operation, 4 main contacts (2 NO contacts + 2 NC contacts)
To switch three-phase induction motors up to 18.5 kW/400 V
Ie/AC-3 up to 60 °C: up to 40 A to 400 V
S00 to S2
3RT16 contactors AC operation
To switch three-phase capacitors up to 50 kvar/400 V
S00, S0 and S3
3RH control relays/3RT
contactors
DC operation with an extended operating range: 0.7 to 1.25 x US
3RT: to switch motors up to 45 kW/400 V
Ie/AC-3 up to 70 °C: 95 A to 400 V
3RH: to switch auxiliary circuits
Ie/AC-15/AC-14 up to 70 °C: 6 A/230 V
S00 to S3
3RT contactor relays
(interface)
DC operation with an extended operating range: 0.7 to 1.25 x US
To switch motors, 3-pole, up to 11 kW/400 V
Ie/AC-3 up to 60 °C: 25 A to 400 V
S00 and S0
3RA13 contactor combina-
tions
AC/DC operation
To reverse up to 45 kW/400 V, Ie/AC-3: 95 A/400 V
S00 to S31)
3RA14 contactor combina-
tions
AC/DC operation,
for wye-delta startup up to 75 kW/400 V, Ie/AC-3: 150 A/400 V
S00-S00-S00 to
S3-S3-S21)
3RH11 auxiliary contactors AC/DC operation,
to switch auxiliary circuits, 4-pole (basic unit)
Ie/AC-15/AC-14 up to 60 °C: 6 A/230 V
S00
3RH14 latched auxiliary
contactors
AC/DC operation,
to switch auxiliary circuits, 4-pole (basic unit)
Ie/AC-15/AC-14 up to 60 °C: 6 A/230 V
S00
3RH11 control relays
(interface)
DC operation with an extended operating range, 0.7 to 1.25 x US
to switch auxiliary circuits, 4-pole
Ie/AC-15/AC-14 up to 60 °C: 6 A/230 V
S00
Table 3-6: 3RT/3RH, designs
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-12 A5E40534713002A/RS-AA/001
Auxiliary contacts and
snap-on accessories
• A uniform and diverse range of auxiliary switches and accessories that
can be quickly upgraded and replaced is available for 3RT1 contactors up
to 45 kW for various applications.
• The 3RH auxiliary contactors can be extended to form variants with a
maximum of 8 poles using attachable 2 or 4-pole auxiliary switch blocks.
• Wiring kits with and without mechanical interlocking are available for put-
ting together 3RA contactor combinations for reversing and for wye-delta
starting.
The accessories are described in detail in Section 3.4, "Accessories".
3.2.1 Coil systems S00 to S3
Table 3-7: Coil systems
AC coil for
AC-control
• Automatic reduction from high closing power to
low holding power
• Short switching times
DC coil for
DC-control
• Larger unit volumes (to achieve a tensile force
comparable to that of an AC coil)
• Closing power = holding power
• Longer switching times
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-13
3.2.2 Short-circuit protection for SIRIUS contactors
Section 3.7, "Technical specifications", has information on short-circuit pro-
tection. Fuses and circuit breakers can be used as short-circuit protective
devices for the contactors.
The test criteria that apply in this case are stipulated by EN 60 947-4-1
(VDE 0660 Part 102).
Coordination types Two types of assignment are defined in the standards that correspond to
two different levels of damage.
The following applies to both types of assignment:
In the event of a short-circuit, the short-circuit protective device used must
be able to disconnect the overcurrent that occurs. Persons or other parts of
the system must not be put at risk.
Coordination type 1 The load feeder (e.g. motor starter) can be inoperable after each short-cir-
cuit. Damage to the contactor and the overload relay is permissible and it is
only possible to continue operation after defective devices have been
repaired or replaced.
Coordination type 2 After a short-circuit, there must be no damage to the load feeder devices.
However, the contactor contacts can weld if they can be easily separated
again without distorting the contact pieces.
"weld free" There is information in the catalog, for weld free protection of the contac-
tors that needs to be taken into account.
Contactors with
overload relay
If contactors are combined with an overload relay, a smaller fuse should be
used as specified in the controls catalog for permissible short-circuit protec-
tion fuses for motor starters.
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-14 A5E40534713002A/RS-AA/001
3.2.3 Operation
3.2.3.1 General information
Degree of protection The degree of protection of the SIRIUS contactors is IP00/IP20.
Warning
When the supply voltage and load are present, the contactor must not be
actuated by pressing the contact support. It is permissible, however, to
carry out tests with an extra-low test voltage (e.g. ≤ 24 V).
Mechanical life A significant criteria for the economical use of contactors is their mechanical
endurance. This is expressed in the number of operations that are possible
without placing a load on the conducting path. You cannot expect too much
in terms of mechanical endurance from switches that have to work with a
relatively high contact load, such as isolators and circuit breakers, without
neglecting their cost-efficiency. Contactors, on the other hand, are switching
devices designed specifically for very high numbers of on/off operations.
The following table shows you the mechanical endurance of 3RT1 contac-
tors:
When there is no arcing during switching the mechanical endurance can be
optimized if low current is used (for example, 17 V/5 mA).
Display of the contactor
function
The 3RT19 26 LED indicator block can be connected to the coil connections
of the contactors in frame sizes S00 to S3. It indicates the status of the con-
tactors by means of the yellow LED. The indicator block can be snapped
onto the front in the opening intended for the inscription plate.
The advantage is that the LED indicator block can be used for AC/DC
voltages of 24 V to 240 V and that it is protected against polarity reversal.
Device Mechanical endurance
Basic unit, frame size S00 30 mill. operating cycles
Basic unit, frame size S00 with built-
on auxiliary switch block
10 mill. operating cycles
Basic unit, frame sizes S0 to S3 10 mill. operating cycles
Basic units, frame sizes S00 to S3
with built-on, electronically optimized
auxiliary switch block
5 mill. operating cycles
Table 3-8: Mechanical service life
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-15
3.2.3.2 Contact reliability
In industrial control engineering, conventional contactor controls are often
combined with electronic control systems. Combining these systems gives
rise to higher demands than those when using only conventional contactor
controls.
An important requirement is that the signal generators (auxiliary contacts of
contactors, for example) display high contact reliability at low voltages and
currents, while retaining their full switching capacity at high voltages.
Switching with
auxiliary contacts
(≤110 V and ≤100 mA)
The following applies to the contactors of the SIRIUS range:
If voltages ≤110 V and currents ≤100 mA are to be switched, the auxiliary
contacts of the 3RT1 contactors or the 3RH1 auxiliary contactors should be
used instead of the main contacts because of their contact reliability. This
comes from their high contact stability due, in particular, to the shape of the
contact pieces (cross-ribbing).
This ensures that the points of contact remain conductive in spite of surface
contamination.
These auxiliary contacts are suitable for electronic circuits (programmable
controllers) with voltages > 17 V and currents in the milliampere range (test
circuit: 17 V, 5 mA).
Cross-ribbing Surface contamination is the most common cause of control circuit contact
faults. Cross-ribbing the contact areas is an extremely effective way of
increasing contact reliability. All the auxiliary contacts of the SIRIUS contac-
tors have this feature.
The following illustration show you how cross-ribbing is particularly effective
against surface contamination due to the high number of contact areas and
high surface pressure:
Fig. 3-2: Contact areas
Depression
Lip
Isolated contact areas
Here: 13 contact surfaces
Accumulated sur-
face contamination
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-16 A5E40534713002A/RS-AA/001
Contact reliability of
the auxiliary contacts
The contact areas of the SIRIUS auxiliary contacts display a high degree of
contact reliability. Fault frequency rates of HF ≤10-8 (i. e. < 1 fault per
100 mill. operating cycles at 17 V, 1 mA) have been registered.
These values apply to auxiliary contacts that are either integrated in the con-
tactor housing or can be snapped on as auxiliary switch blocks.
In the case of built-on auxiliary switch blocks at the side, fault frequency
rates are between 10-6 and 10-8.
The tests are based on the requirements placed on signal generators by
electronic controllers.
This means that with the auxiliary contacts of the SIRIUS contactors or aux-
iliary contactors, the permissible contact resistance is only exceeded once
during a total of 108 (100 million) switching operations. During a long period
of operation, therefore, a fault is not expected to occur, irrespective of the
number of switching operations.
A restriction applies in the case of auxiliary switch blocks built on at the
side.
Definition of switch
fault frequency HF
The fault frequency HF is defined as the number of contact faults that occur
during a certain number of switching operations.
3.2.3.3 Electrical service life
Electrical service life of
the main contacts
The service life of the contacts consists of:
• at rated operational current Ie is defined in acc. with utilization category
AC-4 (switching off 6 times the rated operational current):
200 000 operating cycles
• at mixed modes - in other words, if normal switching mode (the rated
operational current is switched off in acc. with utilization category AC-3) is
mixed with occasional inching mode (several times the rated operational
current is switched in acc. with utilization category AC-4):
the service life can be roughly calculated with the following formula:
Key to the formula:
X Contact service life in mixed mode in operating cycles
A Contact service life in normal operation (Ia=Ie) in operating cycles
B Contact service life in inching mode (Ia = a multiple of Ie) in operating
cycles
C Percentage of the total number of switching operations accounted for
by inching operations
XA
1C
100
---------A
B
--- 1–
⋅+
-----------------------------------------
=
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-17
Characteristic curve:
contact service life of
the main contacts
The following characteristic curves illustrate the contact service life of con-
tactors when switching inductive three-phase loads (AC-1/AC-3), irrespec-
tive of the breaking current and rated operational voltage. The prerequisites
are arbitrary (i.e. not synchronous with the phase relation of the control sta-
tion operating the network).
Ia = breaking current
Ie = rated operational current
PN = rated output of three-phase induction motors with squirrel cage at 400 V
Frame size S00
Fig. 3-3: Characteristic curve of the electrical service life of the main contacts (frame size S00)
10
8
6
4
2
10
8
6
4
2
10
8
6
4
2
10
7
6
5
4
6
4
2
10
8
6
4
2
10
8
6
4
2
10
8
6
5
4
8
6
4
2
10
8
6
4
2
10
8
6
4
2
10
6
5
4
10
8
6
4
2
10
8
6
4
2
10
8
6
4
2
7
6
5
23 4 5 8 10 20 50 60 80
912
40
NSB00473a
4
I(A)
a
I(A)
e
P(kW)
N
7
3
6
5.5
3RT1015
(3 kW)
3RT1016, 3RT1017
(4 kW, 5.5 kW)
690 V
500 V
230 V
400 V
Contactor type
Operating cycles at
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-18 A5E40534713002A/RS-AA/001
Frame size S0
Fig. 3-4: Characteristic curve of the electrical service life of the main contacts (frame size S0)
Frame size S2
Fig. 3-5: Characteristic curve of the electrical service life of the main contacts (frame size S2)
12 17
3RT1024
25
3RT1025 3RT1026
11 PN
(11 kW)
10 20 30 40 50 60 80100 (A)
Ia
Ie(A)
(kW)
(5.5 kW) (7.5 kW)
34
568
9
4
3RT1023
(4 kW)
NSB00474a
10
8
6
4
2
10
8
6
4
2
10
8
6
4
2
7
6
5
4
6
4
2
10
8
6
4
2
10
8
6
4
2
10
8
6
5
4
8
6
4
2
10
8
6
4
2
10
8
6
4
2
10
6
5
4
10
8
6
4
2
10
8
6
4
2
10
8
6
4
2
7
6
5
690 V
500 V
230 V
400 V
10
Contactor type
5.5 7.5
Operating cycles at
NSB00475a
10 20 30 40
4032 50
50 60 80 100
2215
200 300
400
(A)
PN
Ie
Ia
(A)
(kW)
10
2
10
8
6
4
2
10
8
6
4
2
10
8
6
4
3RT1034
(15 kW)
3RT1036
(22 kW)
18.5
4
6
7
2
10
8
6
4
2
10
8
6
4
2
6
4
4
6
2
10
8
6
4
2
10
8
6
4
2
8
6
4
4
6
2
10
8
6
4
2
10
8
6
4
2
10
8
6
4
6
7
10
10
5
5
5
5
8
690 V
500 V
230 V
400 V
Operating cycles at
Contactor type 3RT1035
(18.5 kW)
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-19
Frame size S3
Fig. 3-6: Characteristic curve of the electrical service life of the main contacts (frame size S3)
NSB00476a
3RT1044 3RT1045 3RT1046
(30 kW) (37 kW) (45 kW)
20 30 40 50 60 100 200 300 400 600
(A)
Ia
PN
Ie(A)
(kW)
80
9565
30 4537
10
10
2
10
8
6
4
2
10
8
6
4
2
10
8
6
4
4
6
7
2
10
8
6
4
2
10
8
6
4
2
6
4
4
6
2
10
8
6
4
2
10
8
6
4
2
8
6
4
4
6
2
10
8
6
4
2
10
8
6
4
2
10
8
6
4
6
7
10
10
5
5
5
5
8
80
690 V
500 V
230 V
400 V
Contactor type
Operating cycles at
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-20 A5E40534713002A/RS-AA/001
Characteristic curve:
contact service life of
the auxiliary contacts
The contact service life depends on the breaking current. The prerequisites
are arbitrary (i.e. not synchronous with the phase relation of the control
station operating the network).
The characteristic curves apply to:
• Integrated 3RT10 auxiliary contacts
• 3RH1911 auxiliary switch blocks for contactors in frame size S00
• 3RH1921 auxiliary switch blocks for contactors in frame sizes S0 to S3
Fig. 3-7: Characteristic curve of the electrical service life of the auxiliary contacts
1) DC-13: built-on auxiliary switch blocks for frame size S00: 6 A
3.2.3.4 Ambient temperature
General information The 3RT10 contactors are designed for use with an ambient temperature of
-25 °C to +60 °C. Special designs are available to be used at -35 °C to
+70 °C.
Use at higher ambient
temperatures
The use of contactors in frame sizes S00 to S3 at higher ambient tempera-
tures is possible when different limitations are taken into consideration.
Short time operation at
Tu ≤ 80 °C
For the duration of 1 hour the contactor may be used up to a maximum
ambient temperature of Tu ≤80 °C without derating the rated current.
However, this requires that an average 24 hour mean ambient temperature
of Tu ≤60 °C is not exceeded.
Limitation:
Contactors that contain electronic components or are combined with elec-
tronic accessories (for example integrated surge suppressor, electronic
interface,...) may only be used up to a max. ambient temperature of
Tu ≤60 °C.
I
II
ee
DC-13
220 V
DC-13
110 V
DC-13
24 V
IeIe
NSB00472
1)
AC-15/AC-14
30
10
5
4
3
2
1
0.5
0.1
0.05
0.01
0.01 0.03 0.05 0.1 0.3 0.5 1 2 3 5 6 7 10 a(A)
DC-13
220 V
DC-13
110 V
AC-15
< 230 V
DC-13
24 V
Basic unit with
attachable
contact block
Basic unit
Operating cycles in millions (10 )
6
Ia
Ie
= breaking current
= rated operational current
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-21
Constant operation at
an ambient tempera-
ture of Tu > 60 °C
The constant operation of the 3RT10 contactors at an ambient temperature
of Tu > 60 °C is possible under the following guidelines.
Mounting For better heat dissipation for contactors without side-mounted auxiliary
contacts they should be mounted with a minimum 10 mm clearance when
mounting side by side.
The following declarations are based on this clearance distance.
Thermal load carrying
capacity of the main
circuit
The standard contactors are designed for a max. ambient temperature of
Tu = 6 0 °C.
For use of the contactors at higher ambient temperatures up to max. 70 °C,
then the normal rated operational current Ie/AC-1 (or Ie/DC-1) and the operat-
ing frequency must be reduced.
The following calculations can be used:
Ie max., Tu = the calculated rated current of the contactor at
increased ambient temperature
Ie/ AC-1 or Ie/ DC-1 = Rated current of the contactor at the particular
utilization category and Tu ≤ 60 °C
Tu= Actual ambient temperature at Tu > 60 °C
Coil voltage tolerance So that the contactor coil isn’t thermally overloaded with the increased
ambient temperature, the voltage tolerance of the rated coil voltage Us
needs to be limited according to the Table.
Iemax.,Tu = Ie/AC - 1 •
60 °C
Tu
Iemax.,Tu = Ie/DC - 1 •
60 °C
Tu
zmax.,Tu = z •
60°C
Tu
Tu S00 S0 to S3
60 °C 0.85 to 1.1 Us0.8 to 1.1 Us
70 °C 0.85 to 1.0 Us0.8 to 1.0 Us
Table 3-9: Coil voltage tolerance
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-22 A5E40534713002A/RS-AA/001
Service life The use of the contactors at higher ambient temperatures leads to
increased stress of the plastic material, main circuits and the operating
mechanism. This results in the reduction of the mechanical service life and
time to failure of the contactor. The time to failure is decisively influenced by
the running time.
The following table shows the reduced service life values:
The data given for the time to failure is based on a running time of 100 %. At
a running time of 50 % the values are doubled.
Use of the contactors,
frames sizes S00 to S3
at low ambient
temperatures
The contactors in frame sizes S00 to S3 can be used with a minimum
ambient temperature of Tu ³ -50 °C with up to a 50 % reduction mechanical
service life.
The other catalog data remains the same.
There are steps that need to be taken against condensation (for example,
control panel heating).
In low ambient temperature applications, high operating frequency and
running time is less critical than low operating frequency and running time.
Contactors that contain electronic components or are combined with elec-
tronic accessories may not be used under Tu = -40 °C
S00 S0 to S3 S00 to S3
Ambient temperature
Tu
Mechanical service life
[x106 operations
Time to failure
[years]
≤60 °C 30 10 20
65 °C 15 5 15
70 °C 3 1 10
Table 3-10: Service life of the contactor 3RT10
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-23
3.3 Application and areas of use
Various switching devices are available for switching electrical loads. The
contactor is the most suitable device for frequent switching operations.
Contactors are the most commonly used switching device in industry,
mechanical engineering and in switchgear and controlgear. Due to the
increased automation in manufacturing, contactors have become more
important. This has also increased the variety of loads that must be con-
trolled.
Automated production systems are considerably more sensitive to opera-
tional malfunctions than manually operated systems. Each fault on an elec-
trical device means downtime, waste, loss of production, and investment in
order to get the system up and running again.
For this reason, we concentrated on high reliability when developing the
SIRIUS contactor range. This includes, increased service life, high contact
reliability, and the possibility to use the contactors at higher ambient tem-
peratures in the enclosure. It is possible to use the contactors up to 60 °C
without derating when the devices are installed in a row.
To deal with the variety of possible applications, there are also contactor
variants for special applications, such as for switching resistive loads or
capacitors. This is in addition to the main 3RT10 range of contactors for
switching motors.
The different contactor ranges and their possible applications are described
in the following subsections.
3.3.1 3RT10 contactors with 3 main contacts for switching motors
Field of application The 3-pole 3RT10 contactors use 3 NO contacts as main contacts. They are
mainly used to switch three-phase induction motors.
Frame sizes The full performance range from 3 to 45 kW/400 V (utilization categories AC-
2 and AC-3) (up to 75 HP/460 V UL508) is covered by 4 frame sizes.
The frame sizes cover most of the standard motor outputs.
Dimensions The contactors are provided with alternating or direct current magnetic sys-
tems. The required panel areas of the devices of the two operating mecha-
nism types are the same. For frame sizes S0 to S3, the installation depth for
contactors with the DC magnet system is between 10 mm and 15 mm
greater than for the variants with the AC magnet system.
Power ratings All the specified power and current ratings apply to an ambient temperature
of 60 °C without derating.
For use at increased ambient temperatures see section 3.2.3.4 "Ambient
temperature".
Increasing the power The ease of expansion is an advantage for configuration. In many applica-
tions there is enough space to retrofit the contactor with the next higher
rating class and thus increase motor output.
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
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3.3.2 3RT14 contactors with 3 main contacts for switching resistive loads (AC-1)
Field of application The 3RT14 contactors with 3 main contacts for switching resistive loads are
used for applications in the AC-1 utilization category:
• Switching of resistive loads such as heating systems or resistance
furnaces
• Applications in which a low switching capacity is sufficient
• Applications in which high continuous currents occur without peaks
(e.g. as a generator contactor or in the case of variable-speed drives).
Switching capacity 1.5 times the Ie/AC-1 can be switched on and off. Switching off higher cur-
rents, with the emergency stop, for example, is possible up to 8 times the
Ie/AC-3 current.
Comparison:
3RT14/3RT10
The following table shows you the difference between the 3RT14 and 3RT10
contactors for normal AC-3 applications:
Planning note The 3RT10 range of contactors for switching motors also has a specific AC-1
switching capacity. However the more economic solution would be to use
the 3RT14 AC-1 contactor for this specific purpose.
Accessories You can use the same accessories for the 3RT14 contactors as you can for
the 3RT10 contactors.
Contact material Conducting paths
3RT14 Contact material with high
current-carrying capacity and
better thermal properties
Larger conducting paths that
permit better cooling
3RT10 Contact material that ensures
better switching capacity
Table 3-11: Comparison between the 3RT14 and 3RT10 contactors
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-25
3.3.3 3RT13 and 3RT15 contactors with 4 main contacts
Model There are two variants of the contactors with 4 main contacts:
• 3RT13 with 4 NO contacts
• 3RT15 with 2 NO + 2 NC contacts
You can use the same accessories for both the 3-pole SIRIUS contactors
and the 4-pole variants.
Field of application The following table gives the fields of application for the 3RT13 and 3RT15
contactors:
Auxiliary contact The following table specifies the maximum number of auxiliary contacts
that can be attached:
Contactor combination
with mechanical inter-
locking
The 4-pole 3RT13 contactors with 4 NO contacts as main contacts in frame
sizes S0 to S3 are suitable for putting together contactor combinations with
mechanical interlocks for use in supply switch-overs.
3RT13 contactors with 4 NO
contacts
3RT15 contactors with 2 NO + 2 NC
contacts
• Switching of resistive loads
• Isolation of networks with
ungrounded or badly
grounded neutral conductors
• Supply switch-overs in the
case of alternative AC power
supplies
• As a contactor - for example,
in variable-speed drives that
only have to carry the current,
not switch it
• Pole switch-over in the case of
crane-type motors
• Switching of 2 separate loads
• Breaking contactor
Table 3-12: Applications of 4-pole contactors
Frame size S00 Frame size S0 Frame sizes S2 and S3
4 auxiliary contacts Maximum 2 auxiliary con-
tacts (added on the side or
snapped on the front)
Maximum of 4 auxiliary
contacts
(added on the side or
snapped on the front)
Table 3-13: 4-pole contactors and auxiliary contacts
3RT1 Contactors/ 3RH1 Control relays
SIRIUS System Manual
3-26 A5E40534713002A/RS-AA/001
3.3.4 3RT16 capacitor contactors
Field of application 3RT16 capacitor-switching contactors are used to switch power capacitors
that are used in reactive-current compensation.
Frame sizes The capacitor-switching contactors are available in frame sizes S00, S0 and
S3 with the rating levels 12.5, 25 kvar, and 50 kvar at 400 V.
Fig. 3-8: Capacitor contactors (frame sizes S00 and S3)
Auxiliary contacts The auxiliary contact block attached onto the capacitor contactor contains
three leading NO contacts and a normal NO contact that can be assigned as
you wish. In Frame size S00, an additional 1 NC contact is available in the
base unit. A 2-pole auxiliary switch block can also be attached to the side of
the frame size S3 capacitor contactors (variants: 2 NO contacts, 2 NC con-
tacts, or 1 NO + 1 NC contact).
Switching capacitors/
banks of capacitors
A single capacitor can normally be switched on because the current is
limited by the inductance of the upstream transformer and the cables. It is
more difficult to switch banks of capacitors (parallel connection of a capaci-
tor to capacitors already present) because the current is now only limited by
the low inductance of the connecting leads and the capacitors.
This problem is solved with capacitor-switching contactors using
precharging resistors.
Precharging resistors The precharging resistors are an integral part of the contactor in 3RT16
capacitor-switching contactors. They are switched on via leading auxiliary
contacts before the main contacts close. This results in damping down to
approximately 10 % of the undamped peak currents. Damping of peaks in
the making current prevents disturbances to the network.
S00 S3
RT-01022
RT-01023
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-27
Important
When switching banks of capacitors make sure that you adhere to the
specified minimum inductance between the capacitors connected in
parallel.
3RT10. capacitor
switching capacity
The normal 3RT10 contactors for switching motors also have a certain capac-
itor switching capacity. Details of this can be found in Section 3.7, "Technical
specifications: Utilization category AC-6b, switching of individual capacitors
and switching of low-inductance three-phase capacitors". The tables contain
information on the switching of individual capacitors and the switching of
banks of capacitors.
Operation Caution
Only switch to discharged capacitors! Do not carry out a function test by
hand.
The precharging resistors must not be removed as this will damage the
contact pieces in circuits with a load.
Circuit diagram S00 S0 and S3
Fig. 3-9: Capacitor contactors, circuit diagram
L1 L2 L3
A1
F0
135
246
A2
43
44
C1
L1 L2 L3
A1
NSB01382
F0
135
246
A2
13
14
C1
51
52
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-28 A5E40534713002A/RS-AA/001
3.3.5 Contactors with an extended operating range
Field of application The contactors with an extended operating range use a DC magnetic coil.
They are used in systems with strong fluctuations in the control supply volt-
age and at the same time high ambient temperatures, such as railway appli-
cations in extreme climatic conditions, rolling mills, etc.
Standards Contactors with an extended operating range comply with the following
standards:
• IEC 60 947-4-1
• EN 60 947-4-1 (VDE 0660 Part 102)
• The requirements of IEC 60 077
They are shockproof in acc. with DIN VDE 0106 Part 100.
Exception: the series resistor in frame sizes S0 to S3
Control current cir-
cuits and auxiliary cur-
rent circuits
The magnet coils of the contactors have an extended operating range of
0.7to1.25xU
s and are wired with varistors as standard to provide protec-
tion against overvoltage. This increases the time to contact opening when
compared with standard contactors by 2 ms to 5 ms.
With/without a series
resistor
The 3RH11 and 3RT10 contactors with the suffix -0LA0 at digits 13 to 16 in
the order number are used where several auxiliary contacts are required, in
addition to a wide operating range and a high ambient temperature of 70 °C.
Up to 4 auxiliary contacts can be used in these variants.
If fewer auxiliary contacts are required, contactors with the same extended
operating range that work without a series resistor are available up to frame
size S0.
As an alternative to the contactors with a series resistor there is the elec-
tronic control module available for contactors in frame sizes S0 to S3.
Advantages:
• no increase in the mounting width of the series resistor
• lower contact current closing rating
• no auxiliary contact needed for the control of the series resistor
The three ranges are described in more detail below
3.3.5.1 Contactors with series resister (3RH11...-0LA0/3RT10...-0LA0)
The DC magnetic systems of these contactors are, due to their increased
operating range, turned on with a defined overexcitation. As a result of the
power up, there is a switch over to the hold-in coil via the series resistor.
Designs in
framesizeS00
Control relays and contactors of frame size S00 are available with the
following:
• A built-on block that contains the series resistor (the NC contact required
for the switch-over is integrated in the basic unit and is already wired).
• Integrated varistor
• A 4-pole auxiliary switch block (in acc. with EN 50 005) can also be
built on.
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-29
Designs for frame
sizes S0 to S3
Contactors of frame sizes S0 to S3 are fitted on the front with an auxiliary
switch block with 2 NO contacts + 2 NC contacts. The separate series resis-
tor that is attached next to the contactor on the 35 mm rail has connecting
leads for contactor attachment. An NC contact of the auxiliary switch block
is required for the switch-over to hold-in coil level. A circuit diagram with the
terminal points is attached on each contactor.
Auxiliary contacts One NC contact of the auxiliary contacts is required for the series resistor.
The number of auxiliary contacts that are available beyond this is listed in the
selection and order data. With frame size S00, the auxiliary switch block
must be ordered separately.
An increase of the mountable auxiliary contacts is only possible with frame
size S00.
Installation The following types of installation are permissible for contactors and control
relays in ambient temperatures of up to 70 °C:
Frame size S00: installation in series
Frame sizes S0 to S3: The resistor block must be installed on the right side
of the contactor because of the connecting leads there.
Dimensions When the resistor is mounted, the contactors of frame sizes S0 to S3
become wider (see Section 3.6, "Dimensional drawings").
Circuit diagrams Frame size S00
Terminal markings in acc. with Terminal markings in acc. with
DINEN50012 DINEN50005
Contactors 3RT1017-2K.42-0LA0 Control relays
3RH1122-2K.40-0LA0
Fig. 3-10: Contactors with an extended operating range, circuit diagrams
L+
L-
S1
RV
NSB00559a
135
642
A2-
K1
K1
E1+
L+
L-
S1
RV
NSB00560a
A2-
K1
K1
E1+
13
14
23
24
31
32
Series resistor RV attached
NC contact wired
2 NO + 1 NC contacts available
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-30 A5E40534713002A/RS-AA/001
Frame sizes S0 to S3
Terminal markings in acc. with EN 50 012
Contactors 3RT102.-, 3RT103.-, 3RT104.-3K.44-0LA0
With front-mounted 4-pole auxiliary switch block 3RH1921-1HA22
Fig. 3-11: Contactors with an extended operating range, terminal markings
The NC contact at 21/22 is needed for the wiring of the series resistor
Circuit diagram for wiring of the series resistor
Fig. 3-12: Contactors with an extended operating range, circuit diagram
3.3.5.2 Contactors with electronic control module frame sizes S0 to S3 (3RT10..-.X40-0LA2)
Design The contactors are controlled using a line side electronic control module.
These ensure an operating range of 0.7 to 1.25 US at an ambient tempera-
ture of 70 °C. The coil has a integrated varistor to dampen the switching
overvoltage of the coil. This causes an increase contact opening time com-
pared to the standard contactors of about 2 ms to 5 ms. The contactors with
an electronic control module are also offered as a complete device.
Auxiliary contacts The mounting of auxiliary contacts corresponds to the corresponding stan-
dard contactors.
Installation These contactor designs can be mounted side-by-side in frame sizes S0 to
S3 at ambient temperatures up to 70 °C.
Ambient temperature The allowable ambient temperature for the operation of the contactors
(at the full operational range of the coils) is - 40 °C to + 70 °C. At constant
operation with temperatures of > + 55 °C there is a reduction of mechanical
service life, the loadability of the main conducting paths and the reliable
switching frequency.
13513
14
6
42A2( )
A1 21
22
31
32
43
44
NSB00561a
U
(+)
2 NO + 2 NC contacts
Identification number 22
A1
A1
22
(-)
A2
NSB00562a
RV
21
(-)(+)
A2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-31
Dimensions With the top mounted electronic control module, the height of the contactor
is increased up to 34 mm (for dimensional drawings see Section 3.6 "Dimen-
sional drawings").
Circuit diagram and
terminal connections
Fig. 3-13: Contactor with electronic control module, circuit diagram + terminal connections
3.3.5.3 Contactors with an extended operating range (3RH1122-2K.40, 3RT1017-2K.4.,
3RT102.-3K.40)
Contactors of frame size S00: 3RH11 22-2K.40, 3RT1017-2K.4. and frame
size S0: 3RT102.-3K.40 have the following features:
• Extended operating range of 0.7 to 1.25 x Us
• The magnet coils are wired with a varistor; an additional series resistor is
not required
Note the following:
• Frame size S00: an auxiliary switch block cannot be attached
• Frame size S0: a maximum of two 1-pole auxiliary switch blocks can be
attached
Installation At an ambient temperature > 60 °C < 70 °C, there must be spacing of
10 mm when installing in series.
Ambient temperature The permissible ambient temperature for operating the contactors at the full
operating range of the magnet coils is -35 °C to +70 °C. During continuous
operation with temperatures > +55 °C, the mechanical service life, the cur-
rent-carrying capacity of the conducting paths, and the switching frequency
are reduced.
135
6
4
2
A2(-)
A1(+)
U
NSB00169
....
....
4321
4321
642
531
A2A1
NSB01390
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-32 A5E40534713002A/RS-AA/001
3.3.6 3RH1 control relays
Control relays are switching devices for auxiliary circuits for controlling, sig-
naling, and interlocking. Control relays have to meet specific requirements in
terms of clear terminal markings and have a time- and cost-saving terminal
system.
The SIRIUS 3RH1 control relays (frame size S00) meet these requirements
Terminal markings The terminal markings comply with EN 50 011 and EN 50 005 (for a more
detailed explanation, see Section 3.4.1 "Auxiliary switches").
Frame size and fea-
tures
3RH1 control relays are available as follows:
•Frame size S00
• With AC or DC operation
• Same construction as the motor contactor of frame size S00
• 4-pole basic version
• Can be extended to 8 poles with snap-on auxiliary switch blocks
• Screw-type or Cage Clamp terminals
Screw-type terminals The 3RH1 control relays have captive screws (cross-tip Pozidriv, size 2), with
all the terminal points open on delivery. The screwdriver guides allow screw-
driving machines to be used.
Cage Clamp-Terminals The 3RH11 control relays are also available with Cage Clamp terminals -
a screwless terminal system. This type of terminal is particularly suitable if
strong shock or vibration can be expected at the installation location. These
terminals are also suitable for two-conductor connections. All the terminals
are accessible from the front and are easily visible.
Soldering pin
connections
Both the 4-pole basic version as well as the control relays that have an auxil-
iary switch block attached at the front (see Section 3.4, "Accessories") can be
soldered onto printed circuit boards using a soldering pin adapter.
Contact reliability All the switching elements of the 3RH1 control relays are equipped with con-
tact pieces that have particularly high contact stability, ensuring high contact
reliability even at low voltages and currents. This subject is discussed in
detail in Section 3.2.3.2, "Contact reliability".
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-33
3RH14 latched
auxiliary contactors
If there is a short circuit in the low-voltage network, or when large drive
motors are switched on directly, the control supply voltage for the auxiliary
contactors may fail briefly or fall below the permissible tolerance level. To
ensure continuous operation, the variant with mechanical latching (3RH14)
can be used with the auxiliary contactors.
These auxiliary contactors latch mechanically after power-up and remain in
an energized state even in the event of a power failure. The auxiliary contac-
tor can be unlocked electrically using an interlock release magnet or
manually using a button on the front of the attached latched block. When the
voltage returns, the production program can be resumed immediately with-
out resetting times due to the storage feature of the auxiliary contactors.
The contactor coil and the coil of the release magnet are both designed for
continuous operation.
The power input is the same for the contactor coil and the release coil.
The mechanical service life is 1 million operating cycles.
3.3.7 3RT10 contactor relays for switching motors (interface) and 3RH11 control relays for switching
auxiliary circuits
Contactor relays are available in the SIRIUS modular system for switching
motors and auxiliary circuits for the purpose of smooth interaction with elec-
tronic controllers. These are variants of the 3RT10/3RH11 contactor series
with the following features:
• Low power input
• Wide operating range of the magnet coil 0.7 to 1.25 x Us
• High contact reliability of the auxiliary contacts
• Integrated or attachable overvoltage damping
Contact reliability The high contact reliability of the auxiliary contacts ensures that false signals
do not occur even at low switching capacities. With a voltage of 17 V and a
current of 1 mA, there is on average less than one contact fault per 100 mil-
lion switching operations.
Overvoltage damping Overvoltage damping protects sensitive output levels of electronic control-
lers against switching overvoltages of the coil.
Extended operating
range
The operating range of the coil of the contactor relays covers a voltage range
from 0.7 to 1.25 x Us (Us= rated control supply voltage). This wide operating
range is required for the supply voltage of electronic controllers with the
required voltage tolerances.
The supply voltage of electronic controllers with 24 V DC covers the range
20.4 V to 28.8 V in acc. with DIN 19 240. If you take into consideration an
additional loss of voltage of up to 3 V during the output phases, the contac-
tor drive must be able to operate perfectly with voltages between 17.4 V and
28.8 V. The 3RT10 and 3RH11 contactor relays for electronic controllers oper-
ate safely from 17 V to 30 V, which corresponds to a voltage range of
0.7 x Us to 1.25 x Us. This is a considerably wider operating range than that
of 0.85 to 1.1 x Us for contactors and auxiliary contactors in acc. with
IEC 60 947, DIN EN 60 947 (VDE 0660).
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-34 A5E40534713002A/RS-AA/001
Voltage ranges The following graphic shows you the voltage ranges for electronic control-
lers and drives of contactors and contactor relays with a rated control supply
voltage of Us =24V DC:
Fig. 3-14: Contactor relays: voltage ranges
Auxiliary contact
blocks
Auxiliary contact blocks can be built on as follows:
Frame size S00: none
Frame size S0: a maximum of two 1-pole auxiliary contact blocks
Power consumption Variant 1: The power input of the magnet coils for contactor relays in frame
size S00 is 2.3 W at 24 V DC (operating range: 0.7 to 1.25 x US).
Variant 2: Contactor relays with reduced coil performance in frame size S00,
P = 1.4 W at 24 V DC (operating range: 0.85 to 1.85 US).
The power input of magnet coils for contactor relays in frame size S0 is
4.2 W at 24 V DC (operating range: 0.7 to 1.25 x US).
30
24
17
1.25 Us
1.0 Us
0.7 Us
1.2 x Us
1.1 x Us
1.2 x Us
1.25 x Us
0.85 x Us0.85 x Us0.72 x Us0.7 x Us
28.8 V
20.4 V
26.4 V
20.4 V
28.8 V
17.4 V
30 V
17 V
U
Supply voltage
range
Electronic control-
lers in acc. with
DIN 19340
Operating range
for contactors in
acc. with
VDE 0660 part 102
Voltage range of
electronic outputs
at
<
3 V internal
voltage drop
Operating range of
contactors for
electronic control-
lers
3RT1 Contactors/3RH1 Control relays
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A5E40534713002A/RS-AA/001 3-35
3.3.8 3RA13 Contactor combinations for reversing
3RA13 reversing contactor combinations are available pre-assembled from
the factory or as components for self-assembly
• S00 to S3: pre-assembled from the factory or as kit for self-assembly
Frame sizes S2 and S3 are delivered already mounted on a base plate.
The same accessories can be used as for the basic contactors of the corre-
sponding frame size (see Section 3.4, "Accessories").
For motor protection an overload relay must be attached.
4-pole contactor combinations for reversing can be put together in frame
sizes S0 and S2.
Fig. 3-15: Fully assembled contactor combination for reversing (frame sizes S00 and S0)
Approvals The s and u approvals only apply to complete contactor combinations and
not to combinations that have been field assembled from separate compo-
nents.
Switch-over time If the contactors are interlocked by means of their auxiliary switches (electri-
cal interlocking) or by mechanical interlocking, there is no overlapping of the
contacts and the arcing time between the contactors at switch-over.
The switching times of the contactors are not affected by the mechanical
interlock.
Note
At voltages of >500 V a switch-over pause of 50 ms must be included.
AC-operated 3RT10 contactors in reversing or Dahlander mode require an
NC contact interlock and a switch-over pause of 50 ms.
1
2
➀
1
23RU1.1 3RU1.2
S00 S0
3RT1 Contactors/3RH1 Control relays
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3-36 A5E40534713002A/RS-AA/001
Auxiliary contact
elements
Different auxiliary switches can be attached (at the front or the side) to the
3RA1 reversing combination. An integrated auxiliary switch contact is avail-
able in frame size S00.
Accessories The following accessories for the basic units can also be used for contactor
combinations for reversing:
• Auxiliary switch blocks (at the front/side)
• Surge suppressors
• Soldering pin adapters (frame size S00)
The following accessories are designed specifically for contactor combina-
tions for reversing:
• Locking devices for mechanical interlocking
• Locking devices for mechanical and electrical interlocking (at the front/
side)
• Terminals for contactor coils (for frame sizes S0 to S3)
• Mechanical connectors
• Wiring modules
Te r m i n a l s f o r
contactor coils
To reach the coil terminals A1 and A2 of the frame sizes S2 and S3 reversing
contactor combinations more easily, you can use extension terminals for
contactor coils.
For each combination, 2 x A1 and 1 x A2 are required.
Wiring module Wiring modules are available to enable you to carry out different types of
wiring (Dahlander wiring, for example).
You can find out how to mount the wiring modules in the diagrams of the
self-assembly kits.
Mechanical
interlocking
Mechanical interlocking (for frame sizes S0 to S3) is available in 2 variants:
• Attachable at the front (contactor spacing: 0 mm)
• Attachable at the side with integrated NC contact for electronic inter-
locking
Note
If you want NC contact interlocking, you must use contactors with 1 NC con-
tact in the basic unit with the 3RT1 contactors of frame size S00.
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-37
Mechanical interlock
installation
The following graphics show you how to install the front mount mechanical
interlock for frame size S0:
Drawing: Frame size S0 Step Procedure
1Attach both of the wiring modules in
order to connect the main conducting
paths. Shown as the circled numbers:
= Top wiring module
= Bottom wiring module
2Push the sliding switch on the upper
portion of the mechanical interlock to
RESET, in order to be sure of the condi-
tional state of the module.
3/4/5 First attach the mechanical interlock in
the contact opening of the left contac-
tor (3), then with a swinging motion
attach the mechanical interlock in con-
tact opening of the right contactor (4)
and pull the interlock downward until it
sits securely in place (5).
6In the proper operational condition, the
upper sliding switch on the front side
of the mechanical interlock is to the left
and the lower sliding switch is to the
right.
Table 3-14: Installation of the front mounted mechanical interlock (frame size S0)
1
1
3
4
3RA1923-2A
5
RESET
2
6
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-38 A5E40534713002A/RS-AA/001
The following graphics show you how to install the front mount mechanical interlock with frame sizes
S2 and S3:
Drawing: Frame sizes S2/S3 Step Procedure
1/2 Place the contactors even to one
another (1) and plug-in both of the con-
nection clips to the backside (2).
3Push the sliding switch on the upper
portion of the mechanical interlock to
RESET, in order to be sure of the condi-
tional state of the module (3).
First attach the mechanical interlock in
the contact opening of the left contac-
tor (4), then with a swinging motion
attach the mechanical interlock in con-
tact opening of the right contactor (5)
and pull the interlock downward until it
sits securely in place (6).
7In the proper operational condition, the
upper sliding switch on the front side
of the mechanical interlock is to the left
and the lower sliding switch is to the
right.
Table 3-15: Installation of the front mounted mechanical interlock (frame sizes S2/S3)
1
2
3RA1932-2C
3
4
5
6
RESET
7
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-39
Assembly kits for con-
tactor combinations
The following accessories are components of the self-assembly kits and
they are described in the diagrams of the relevant kit:
• Side mount mechanical interlock
• Mechanical connectors
• Wiring modules
Assembly kits for
reversing combina-
tions
The following table shows you the components of the kit for the contactor
combination for reversing in frame size S00 and explains how to put it
together:
Electrical interlock Note
Contactors with an NC contact in the basic unit (3RT101.) are required for the
electrical interlock.
Drawing: frame size S00 Step Procedure
1/2/3 Mount the mechanical inter-
lock between the two contac-
tors.
4/5 Press the two connecting clips
from above and below onto
the two contactors.
6Attach the wiring modules to
connect the main conducting
paths and to electrically inter-
lock the two contactors
(3RT10.1). Make sure that the
wiring modules are flush with
the contactor at the side.
Table 3-16: Assembling the contactor combination for reversing (frame size S00)
5
4
1
3
2
6
6
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-40 A5E40534713002A/RS-AA/001
The following table shows you the components of the kit for the contactor
combination for reversing in frame size S0 and explains how to put it
together:
Drawing: frame size S0 Step Procedure
1/2 Mount the mechanical inter-
lock between the two contac-
tors.
3Wire the actuating voltage and
the electrical reversing inter-
lock using the auxiliary con-
ducting paths.
4/5 Attach the wiring modules in
order to connect the main con-
ducting paths and tighten the
terminals.
Table 3-17: Assembling the contactor combination for reversing (frame size S0)
2
1
3
3
4
4
5
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-41
The following table shows you the components of the kits for the contactor
combination for reversing in frame size S2 and S3 and explains how to put it
together:
Drawing: frame size S2 (S3) Step Procedure
1/2/3 Mount the mechanical inter-
lock between the two contac-
tors. Then insert the 2
connecting clips (10 mm
spacing) on the back of the
two contactors.
4Wire the actuating voltage and
the electrical reversing inter-
lock using the auxiliary con-
ducting paths.
5/6 Attach the wiring modules (5)
in order to connect the main
conducting paths and tighten
the terminals (6).
Table 3-18: Assembling the contactor combination for reversing (frame sizes S2/S3)
3
2
3
1
4
4
5
6
5
¿
À
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-42 A5E40534713002A/RS-AA/001
4-pole contactor com-
bination for reversing
4-pole contactor combinations for reversing are available in frame sizes S0
and S2. You will require the following to mount these combinations:
• Frame size S0: locking device for mechanical interlock
• Frame size S2: locking device for mechanical interlock and 2 connecting
clips
The following graphic shows you how to set up the 4-pole contactor combi-
nation for reversing in frame size S0:
Drawing: frame size S0 Step Procedure
1/2 Remove the 4th pole from
one of the two contactors
by releasing the snap catch
(1).
3/4 Put the 4th pole on the
other side of the same con-
tactor by placing the
catches on the pole into
the openings shown on the
contactor and snapping the
pole onto the contactor.
5/6 Mount the mechanical
interlock between the two
contactors (5/6).
Table 3-19: 4-pole contactor combination for reversing (frame size S0)
2
1
1
3
4
3
4
6
5
3RA1924-2B
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-43
Assembly of the con-
tactors in frame size
S0 with front inter-
locking
Drawing: frame size S0 Step Procedure
1/2 Remove the 4th pole of the
left contactor by pressing the
ribbed surfaces at the top and
bottom at the same time (1)
and then removing the pole
(2).
3/4 Attach the pole to the left side
of the same contactor.
5/6 Put the contactors together
by inserting two mechanical
couplers (3RA1922-2C) in the
appropriate openings of the
contactor (5), and then press
the other contactor onto
these mechanical couplers
(6).
7/8/9 Mount the mechanical inter-
lock at the front (3RA1924-1A)
over the two contactors.
Table 3-20: 4-pole reversing contactor combination with front interlock (frame size S0)
2
1
1
3
4
3
4
6
5
5
3RA1922-2C
8
9
7
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-44 A5E40534713002A/RS-AA/001
The following graphic shows you how to assemble the 4-pole reversing con-
tactor combination in frame size S2:
NO contact function
not interlocked
If contactors in frame size S00 are used with 1 NO contact that is intended
for an auxiliary function (e.g. as a signaling device), the wiring module must
be separated. The illustration below shows you the wiring for this function:
Fig. 3-16: NC contact wiring for the electrical interlock (frame size S00)
Mounting and
connection
The contactor combinations for reversing have screw-type connections that
are suitable for both panel mounting and snap-on mounting on a 35 mm rail.
Conductor
cross-sections
The permissible conductor cross-sections of the contactor combinations for
reversing correspond to those of the basic units for the corresponding frame
size.
Drawing: frame size S2 Step Procedure
1/2 Mount the mechanical
interlock between the two
contactors.
3Insert the 2 connecting
clips on the back of the two
contactors.
Table 3-21: 4-pole reversing contactor combination (frame size S2)
2
3
3
1
3RA1924-2B
3RA1932-2G
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-45
Circuit diagrams Main circuit: S00 to S3
Fig. 3-17: Reversing contactor combination, main circuit (frame sizes S00 to S3)
Control circuit: S00
Fig. 3-18: Reversing contactor combination, control circuit (frame size S00)
S0 "Off" button
S1 "Clockwise rotation on" button
S2 "Counterclockwise rotation on" button
S "Right/off/left" selector switch
K1 Clockwise rotation contactor
K2 Counterclockwise rotation contactor
F1 Fuses for main circuit
F2 Overload relay
F3 Fuses for control circuit
L1
L2
L3
F2
K1
K2
M
3~
NSB00634
WV
U
F1
L1/L+
S0
S1 K1
K1
N/L
NSB00635
F3
53
54
A1
A2
21
22
A1
21
22
K2
53
54
S2
S2 S1
F2
96
95
K2 K1
K2 A2
L1/L+
S
K1
N/L
NSB00636
F3
A1
A2
21
22
A1
21
22
F2
96
95
K2 K1
K2
A2
102
Push button switch control
(3-wire control)
Continuous contacting
(2-wire control)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-46 A5E40534713002A/RS-AA/001
Control circuit: S0 to S3
Fig. 3-19: Reversing contactor combination for control circuit (frame sizes S0 to S3)
Technical specifica-
tions
The technical specifications of the contactor combinations for reversing
correspond to those of the basic units for the corresponding frame size.
3.3.9 3RA14 Wye-delta combinations
The 3RA1 wye-delta combinations in frame sizes S00 to S3 are available as
follows:
• Fully assembled with the usual auxiliary switches in the following frame
sizes:
- S00-S00-S00
- S0-S0-S0
- S2-S2-S0
- S2-S2-S2
- S3-S3-S2
Frame sizes S2 to S3 are delivered already mounted on a base plate.
• In USA sold only for self-assembly.
• S00 to S3 as a kit for self-assembly.
The same accessories can be used as for the basic units of the corres-
ponding frame size (see Section 3.4, "Contactor accessories").
L1/L+
S0
S1 K1
K1
N/L
NSB00638
F3
.3
.4
A1
A2
111
112
A1
122
121
K2
.3
.4
S2
S2 S1
F2
96
95
K2 K1
K2 A2
L1/L+
S
K1
N/L
NSB00639
F3
A1
A2
111
112
A1
122
121
F2
96
95
K2 K1
K2
A2
102
Push button switch control
(3-wire control)
Continuous contacting
(2-wire control)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-47
The following graphics show you the fully assembled wye-delta combina-
tions in frame sizes S00 to S2:
Frame size S00 Frame size S0
Fig. 3-20: Wye-delta combinations (frame sizes S00, S0, S2)
3-phase feed-in terminal
(4 to 10 mm2)
Auxiliary
contact
block,
at the front
Time-delay auxiliary
contact block, at
front
Auxiliary contact block,
at the front
Time-delay auxiliary
contact block, at
front
Auxiliary contact block,
at the front Time-delay auxiliary contact
block, at front
Frame size S2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-48 A5E40534713002A/RS-AA/001
Frame size S2
Fig. 3-21: Wye-delta combination (frame size S2)
Field of application The wye-delta combination is used to start three-phase induction motors
which require a low load torque during startup.
Starting current ratio Wye-delta starting can only be used when the motor normally operates in
delta mode, starts with no load, or if the load torque during the wye startup
is small and does not increase rapidly.
In the wye stage, the motors can be loaded with approximately 50 %
(torque class KL16) and 30 % (KL10) of its rated torque.
The starting torque is reduced to approximately 1/3 of the value at direct
power-up.
The starting current is approximately 2 to 2.7 times the rated current for the
motor.
Switch-over Switching from the wye to the delta stage can only be carried out once the
motor has completed startup to the rated speed.
The required switch-over time delay and interlock is included in the contactor
combination.
Important
Motors that require an early switch-over are not suitable for wye-delta start-
ing.
Overload protection The fully assembled combinations are not equipped with overload protec-
tion. Overload relay (3RU11) and tripping devices for thermistor motor pro-
tection must be ordered separately.
The overload relays can be attached to the contactor directly or set up
separately. The overload relay is set to 0.58 times the set current Ie.
See Chapter 4, "Overload relays" for further information.
Timing relay, at the side
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-49
Components of the
wye-delta-combina-
tions
The following table shows you the features of the fully assembled wye-delta
combinations with time-delay auxiliary switch blocks with the wye-delta
function (3RT19.6-2B...) and solid-state time relays with semiconductor out-
put and the possible configuration, if you use the self-assembly kit:
Important
If a time-delay auxiliary switch block is mounted on the front of K3, an
auxiliary switch block can only be mounted on the side of K3.
Accessories The following basic unit accessories can also be used for wye-delta combi-
nations:
• Auxiliary switch blocks (front, side)
• Surge suppressors
• Time-delay auxiliary switch blocks with wye-delta function
In addition, there are special accessories available for the wye-delta combi-
nations:
• 3-phase feed-in terminals
• Wye-point links (parallel links)
• Terminals for contactor coils (S2/S3)
• Mechanical connectors
• Wiring modules
Terminal for
contactor coils
In order to more easily reach coil terminals A1 and A2 in the wye-delta com-
bination from contactors in frame sizes S2 and S3, extension terminals for
contactor coils can be used.
For each combination, 2 x A1 and 1 x A2 are required.
Infeed With conductor cross-sections > 2 x 2.5 mm2 and 1x>4 mm
2, a feed-in
terminal block must be used for the wye-delta combination in frame size
S00. This makes the following conductor cross-sections possible:
• Frame size S00: up to 6 mm2
• Frame size S0: up to 25 mm2
• Frame size S2: up to 50 mm2
Frame size S00 Frame sizes S0 to S3
Fully assembled At front
(time-delay auxiliary
switch block)
at the side (timing relay)
Kit At front • at the side (timing relay)
• At front
(time-delay auxiliary contact block)
Table 3-22: Configuration of the wye-delta combinations
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-50 A5E40534713002A/RS-AA/001
Kits The following graphic shows you the components of the kit for the wye-
delta combination in frame size S00 and explains how to put it together:
Drawing: frame size S00 Step Procedure
1/2/3 Place the mechanical interlock
in the opening on the right
side of the delta contactor K3.
Push the wye contactor K2
and the delta contactor K3
together.
4/5 Press a connecting clip for
both the top and bottom onto
the two contactors (3).
Make sure the clips are on the
correct side.
6/7 Break the upper link module
off at the notches (6), and
attach the wiring modules and
the wye jumper, to connect
the main conducting paths
(between line contactor (K1)
and delta contactor (K3) and at
the same time to interlock the
combination electrically
(K3-K2)).
8/9 Wire A2 and tighten the termi-
nal screws.
Table 3-23: Assembly of the wye-delta combination in frame size S00
5
1
3
2
4
9
7
7
7
8
6
7
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-51
The following graphic shows you the components of the kits for the wye-
delta combinations in frame sizes S0 to S3 and explains how to put it
together:
Drawing: frame size S0 Step Procedure
1Attach the wiring modules
and the wye-point link in
order to connect the main
conducting paths and to
interlock the combination
electrically.
Drawing: frame size S2 (S3) Step Procedure
1/2 Place the wye-point link on
the wye contactor.
Tighten the main connec-
tions.
3Place the wiring module on
the contactor undersides to
connect the main conduct-
ing paths.
Drawing: frame sizes S3-S3-S2 Step Procedure
1Attach the wye-point link to
the wye contactor.
2Attach the wiring module to
the contactor undersides to
connect the main conduct-
ing paths.
Table 3-24: Assembly of the wye-delta combinations in frame sizes S0 to S3
1
1
1
1
2
3
À
2
1
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-52 A5E40534713002A/RS-AA/001
Compensating for
different depths for
the mechanical inter-
lock
In wye-delta combinations with contactors of different frame sizes, it is
necessary to compensate for the mounting depth of the smaller contactor.
One frame size is the maximum difference possible.
The following depth compensation must be made for a mechanical interlock
attached at the side:
• S2-S2-S0: K3: 1.5 mm; K2: 0 mm
• S3-S3-S2: K3: 0 mm; K2: 27.5 mm
Mounting and
connection
The wye-delta combinations have screw-type connections that are suitable
for both screw-on and snap-on mounting on the 35 mm rail.
Conductor
cross-sections
The permissible conductor cross-sections of the wye-delta combinations
correspond to those of the basic units for the corresponding frame size.
Circuit diagrams Main circuit:
S00 S0
Fig. 3-22: Wye-delta combinations, main power circuit (frame sizes S00 to S3)
L1
L2
L3
F1
K1 K3
M
3~
NSB00642
U1
V1
W1
F0
K2
135
246
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3~
L1
L2
L3
F1
K1 K3
M
3~
NSB00645
U1
V1
W1
F0
K2
135
246
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3~
L1
L2
L3
F1
K1 K3
M
3~
NSB00648
U1
V1
W1
F0
K2
135
246
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3~
F0
S2 to S3
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-53
Control circuit S00
Fig. 3-23: Wye-delta combinations, control circuit (frame size S00)
Control circuit: S0 to S3
Fig. 3-24: Wye-delta combinations, control circuit (frame sizes S0 to S3)
S0 "Off" button F0 Fuses
S1 "On" button F1 Overload relay
S Continuous contact maker
K1 Line contactor
K2 Wye contactor
K3 Delta contactor
K4 Time-delay auxiliary switch block or time relay
Technical Data The technical specifications of the wye-delta combinations correspond to
those of the basic units for the corresponding frame size.
F0
K1 K3
K2
NSB00643
14
95
N(L )
L1(L+)
13
21
22
K4
K3
K1
S1
S0
F1
96
AC 50Hz (DC) ...V
21
22
K2
28 38
37
K4
27
F0
K1 K3
K2
NSB00644
95
N(L )
L1(L+)
21
22
K3
S
F1
96
AC 50Hz (DC) ...V
21
K2 22
28 38
37
K4
27
K4
14
13
K1
Continuous contacting
(2-wire control)
Push button switch control
(3-wire control)
F0
K3
K2
NSB00647
95
N(L )
L1(L+)
41
42
K4
K3
F1
96
AC 50Hz (DC) ...V
21
22
K2
18 28
K4
17
K1
34
33
K1 K2 14
13
S
43
44
K1
Continuous contacting
(2-wire control)
F0
K3
K2
NSB00646
43
95
N(L )
L1(L+)
44
41
42
K4
K3
K1
S1
S0
F1
96
AC 50Hz (DC) ...V
21
22
K2
18 28
K4
17
K1
34
33
K1 K2 14
13
Push button switch control
(3-wire control)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-54 A5E40534713002A/RS-AA/001
3.4 Accessories
Accessories for frame
size S00
The accessories for contactors that switch motors and for control relays are
of the same type. The accessories are attached at the front.
Accessories for frame
sizes S0 to S3
The accessories are (with few exceptions) the same for frame sizes S0 to
S3. They can be attached in different ways:
• Auxiliary switches can be attached at the front or the side.
• Surge suppressors can be attached at the top or the bottom.
The following graphic shows you the accessories for the contactors and control relays that switch
motors of frame size S00:
Fig. 3-25: Accessories for contactors of frame size S00
1Contactor, frame size S00
2Coupling relay
3Solid-state time relay block, on-delay
4Solid-state time relay block, off-delay
5Auxiliary switch block, time-delay
(on-delay or off-delay or wye-delta function)
6/7 1-pole auxiliary switch block, infeed from above or below
8/9 2-pole auxiliary switch block, infeed from above or below
10 4-pole auxiliary switch block (terminal markings in acc. with EN 50 012 or EN 50 005)
11 2-pole auxiliary switch block, standard or electronic type
12 Soldering pin adapter for contactors with 4-pole auxiliary switch block
13 Soldering pin adapter for contactors and contactor relays
14 Additional load module to increase the permissible residual current
15/16Surge suppressor with and without LED
17 3-phase feed-in terminal
18 Parallel link (star-point link), 3-pole, without terminal
19 Parallel link, 3-pole, with terminal
20 Parallel link, 4-pole, with terminal
NSB00448
15
3
4
5
6
7
8
9
10
11
14
20
19
16
12
13
1
17
18
2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-55
The following graphic shows you the accessories for the control relays and contactor relays for
auxiliary circuits of frame size S00:
Fig. 3-26: Accessories for control relays/coupling relays of frame size S00
1Control relay
2Coupling relay for auxiliary circuits
3Solid-state time relay block, on-delay
4Solid-state time relay block, off-delay
5Auxiliary switch block, time-delay (types: on-delay or off-delay)
61-pole auxiliary switch block, infeed from above
72-pole auxiliary switch block, infeed from above
81-pole auxiliary switch block, infeed from below
92-pole auxiliary switch block, infeed from below
10 4-pole auxiliary switch block (terminal markings in acc. with EN 50 011 or EN 50 005)
11 2-pole auxiliary switch block, standard or electronic type
(terminal markings in acc. with EN 50 005)
12 Soldering pin adapter for control relays with 4-pole auxiliary switch block
13 Soldering pin adapter for control relays and contactor relays
14 Additional load module to increase the permissible residual current
15 Surge suppressor with LED
16 Surge suppressor without LED
NSB00066a
1
2
8
9
10
11
6
7
5
12
15
16
13
3
4
14
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-56 A5E40534713002A/RS-AA/001
The following graphic shows you the accessories for the contactors of frame sizes S0 to S3:
Fig. 3-27: Accessories for contactors of frame sizes S0 toS3
1Contactor, frame size S0
2Contactor, frame size S2
3Contactor, frame size S3
For frame sizes S0 to S3:
4Solid-state time relay block, on-delay
5Solid-state time relay block, off-delay
6Auxiliary switch block, time-delay
(on-delay or off-delay or wye-delta function)
72-pole auxiliary switch block, infeed from above
82-pole auxiliary switch block, infeed from below
94-pole auxiliary switch block
(Terminal markings in acc. with EN 50 012 or EN 50 005)
10 Parallel link (star-point link), 3-pole without terminal
11 Parallel link, 3-pole, with terminal
12 2-pole auxiliary switch block, attachable on the right or left side
(Terminal markings in acc. with EN 50 012 or EN 50 005)
13 1-pole auxiliary switch block (a maximum of 4 can be snapped on)
14 Mechanical interlock, attachable at the side
15 Mechanical interlock, attachable at the front
16 Wiring modules above and below (reversing operation)
17 Surge suppressor (varistor, RC element, diode combination),
attachable above or below (different for S0 and S2/S3)
18 Coupling link for direct attachment to the contactor coil
19 LED block to display the contactor function
For frame sizes S2 and S3 only:
20 Terminal for contactor coil for assembling contactor combinations
21 Terminal cover for box terminals
For frame size S3 only:
22 Terminal cover for lug connection and bar connection
23 Auxiliary connecting lead terminal, 3-pole
NSB00449
4
10
5
18
17
16
11
1
12
9
6
15
14
1
8
7
13
16
19
21
20
2
21
22
23
20
3
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-57
3.4.1 Attachable auxiliary switches for extending the auxiliary contacts
Integrated auxiliary
contacts
Frame size S00
The contactors of frame size S00 have an auxiliary contact integrated in the
basic unit.
Frame size S0 to S3
The contactors of frame sizes S0 to S3 do not have an integrated auxiliary
contact in the basic unit.
Auxiliary switch
blocks
Formats
Auxiliary switch blocks for extending the auxiliary contacts are available with
screw-type or Cage Clamp terminals to attach to contactors. They are avail-
able in the following formats:
• At the front: 1 to 4-pole for frame sizes S00 to S3
• At the side: 2-pole for frame sizes S0 to S3
Different auxiliary switch blocks can be added to the 3RT1 basic units,
depending on the application:
The following can be snapped onto the front of the contactors:
• Frame sizes S00 to S3: a 4-pole auxiliary switch block
or
• Frame sizes S0 to S3: up to four 1-pole auxiliary switch blocks
Frame sizes S0 to S3
If the depth of the installation space is limited, 2-pole auxiliary switches can
be attached on the right and left side in frame sizes S0 to S3.
If 1-pole auxiliary switch blocks are used, note the location ID on the contac-
tor.
1-pole/2-pole auxil-
iary switch blocks
1 or 2-pole auxiliary switch blocks that can be connected from above or
below make the wiring simple and straightforward when setting up feeders.
These auxiliary switch blocks are only available with a screw-type terminal.
We recommend with the circuit breaker/MSP and contactor combination
that you use auxiliary switch blocks that are connected from below. In the
case of the contactor/overload relay combination, an auxiliary switch con-
nected from above is more suitable.
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-58 A5E40534713002A/RS-AA/001
Electronically opti-
mized auxiliary switch
blocks
The electronically optimized auxiliary switch blocks contain enclosed switch-
ing elements that are particularly suitable for switching low voltages and cur-
rents (hard gold-plated contacts) as well as for use in dusty atmospheres.
The rated operational current is Ie/AC-14 and DC-13: 1 to 300 mA,
voltage: 3 to 60 V.
The electronically optimized auxiliary switch blocks are available as screw-
type or Cage Clamp terminal types:
• Frame size S00 (3RH1911-.NF..): Has two enclosed auxiliary contacts
(1 NO contact + 1 NC contact, 2 NO or 2 NC contacts)
• Frame sizes S0 to S3 (3RH1921-.FE22): Has two enclosed auxiliary con-
tacts and two standard auxiliary contacts, each 1 NO contact + 1 NC con-
tact
The switched current is in acc. with the VDE 0435 regulation for relays.
Auxiliary contacts The following table gives you an overview of all the available auxiliary contacts:
Adding to the auxiliary
contacts
• The basic units of frame size S00 possess an integrated auxiliary contact
and can be supplemented with up to 4 contacts using attachable auxiliary
contacts.
• The basic units of frame sizes S0 to S3 do not have any auxiliary contacts,
but auxiliary switches can be attached at the front or the side.
Auxiliary contacts and
attachable accessories Frame size S00 Frame sizes S0 to S3
Integrated auxiliary contact 1 integrated auxiliary
contact
—
4-pole auxiliary switch Attachable at the front Attachable at the front
2-pole auxiliary switch Attachable at the front —
1-pole auxiliary switch — Attachable at the front
1-pole auxiliary switch (infeed
from 1 side)
Attachable at the front —
2-pole auxiliary switch (infeed
from 1 side)
Attachable at the front Attachable at the front
2-pole auxiliary switch — Attachable at the side
Time-delay auxiliary switch
blocks
Attachable at the front Attachable at the front
Electronically optimized auxiliary
switches
Attachable at the front Attachable at the front
Attachable at the side
Table 3-25: Auxiliary contact blocks
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-59
The following table shows you the expansion options for the different frame
sizes:
Front mount auxiliary
contacts
Auxiliary contacts that can be attached at the front are hooked into the open-
ing of the contactors and pulled down until they snap into place. They can be
removed using the release lever in the middle.
Fig. 3-28: Front mount auxiliary contacts
Frame size Auxiliary switch block Connection
S00 1, 3 and 4-pole (attachable at the front) Screw-type/Cage
Clamp terminal
Feeder auxiliary switch (attachable at the front):
• 1-pole (1 NO or 1 NC contact)
• 2-pole (1 NO + 1 NC or 2 NO contacts)
Infeed from above or below possible
Screw-type terminal
S0 to S3 1 and 4-pole (attachable at the front)
2-pole (attachable at the side)
Screw-type/Cage
Clamp terminal
Feeder auxiliary switch (attachable at the front):
• 2-pole (1 NO + 1 NC contact)
• 2-pole (2 NO or 2 NC contacts)
Infeed from above or below possible
Screw-type terminal
Table 3-26: Expansion options for auxiliary contact blocks
2
1
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-60 A5E40534713002A/RS-AA/001
Auxiliary switches at
side (S0 to S3)
The auxiliary switches are hooked onto the left or right side of the contactor
and snapped onto it. They are removed again by pressing the ribbed sur-
faces.
Fig. 3-29: Side mount auxiliary contacts
Note
When you use two 2-pole, side mount auxiliary contacts, you must attach an
auxiliary switch block on the left and right in the interests of symmetry.
Maximum number of
auxiliary contacts
The following table shows you the maximum number of auxiliary switches and their
combination options:
Frame size S0 and S2 (3RT102./3RT103.)
Frame size S3 (3RT104./3RT14)
1
2
1
21
2
1
1 auxiliary
contact
element
4 auxiliary
contact
elements
2 auxiliary
contact
elements
A maximum of 4 auxiliary contacts can
be attached, and you can use any type
of auxiliary switch. When you use two
2-pole, auxiliary switch blocks at the
side, you must attach a block on the
left and right in the interests of sym-
metry. In some situations, it is permis-
sible to have more auxiliary contacts
in frame size S2 (for more details,
please contact Technical Assistance).
max. 4 0 0
max. 2 0 1
010
001+1
Table 3-27: Possible auxiliary contact combinations (frame sizes S0/S2)
1 auxiliary
contact
element
4 auxiliary
contact
elements
2 auxiliary
contact
elements
A maximum of 8 auxiliary contacts can
be attached. Please note the follow-
ing:
Of these 8 auxiliary contacts, a maxi-
mum of four can be NC contacts.
Symmetry must be preserved in the
case of auxiliary switch blocks
attached at the side.
401+1
011+1
002+2
Table 3-28: Possible auxiliary contact combinations (frame size S3)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-61
Contactors with 4 main contacts and capacitor-switching contactors
Switching of the
auxiliary contact
elements
With the standard type of auxiliary switch, when the contactors are
switched on, first the NC contacts are opened and then the NO contacts are
closed.
Fig. 3-30: Switching of the auxiliary contact elements
Auxiliary contact
elements with
make-before-break
contacting
The following table shows auxiliary contact elements with make-before-break
contacting:
1) Leading NO contact
2) Lagging NC contact
S00 S0 S2/S3
Contactors with
4 main contacts
4 auxiliary
contacts
Maximum of 2 auxiliary
contacts
(attached at the side or
snapped on at the top)
Maximum 4 auxiliary
contacts
(attached at the side or
snapped on at the top)
Capacitor-switch-
ing contactors
An additional 2-pole auxiliary switch block on each side
(3RH1921-1EA..: 2 NO, 2 NC or 1 NO + 1 NC contact)
Table 3-29: Possible auxiliary switch combinations with 4-pole/capacitor-switching contactors
NC
NO
On
Off
Off On
Off
On
Contactor
Standard
auxiliary
switch
S00 Auxiliary switch
type
S0 - S3 Auxiliary switch type
3RH1911-.FC22 22U, 2 NO + 2 NC
contacts
Screw-type/Cage
Clamp terminal
3RH1921-.FC22 22U, 2 NO + 2 NC
contacts
Screw-type/Cage
Clamp terminal
3RH1911-.FB11 11U, 1 NO + 1 NC
contact
Screw-type/Cage
Clamp terminal
3RH1911-.FB22 11/ 11 U.
1NO+1NC+1PS1)
+1 lagging NC2)
contact
Screw-type/Cage
Clamp terminal
3RH1921-1CD01 1 NO contact,
leading
Screw-type terminal
3RH1921-1CD10 1 NC contact,
lagging
Screw-type terminal
Table 3-30: Auxiliary switches with make-before-break contacting
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-62 A5E40534713002A/RS-AA/001
3.4.1.1 Terminal markings of the contactors frame sizes S00 to S3
In contactors of frame size S00 with an integrated auxiliary contact, the ter-
minal marking complies with EN 50 012. This also applies to contactors that
are available as complete devices, frame sizes:
• S0 to S3 with mounted auxiliary contact blocks 2 NO + 2 NC
Expanding the contac-
tors of frame size S00
All the contactors of frame size S00 (3 and 4-pole) can be expanded with
auxiliary switch blocks with the identification numbers 40 to 02 in acc. with
EN 50 005 as follows:
• Frame size S00 with an integrated auxiliary contact (identification number
10E or 01) for contactors with 3 or 5 auxiliary contacts
• Frame size S00 with 4 main contacts for contactors with 2 or 4 auxiliary
contacts
Note
The identification numbers on the auxiliary switch blocks only apply to the
attached auxiliary switches.
Expanding the contac-
tors with 1 integrated
NO contact, S00
(3RT101.-...01)
Contactors with one NO contact as an auxiliary contact with screw-type or
Cage Clamp terminals, identification number 10E, can be expanded with
auxiliary switch blocks with terminal markings in acc. with DIN EN 50 012 for
contactors with 2, 4, and 5 auxiliary contacts. The terminal markings of the
complete contactors comply with EN 50 012. The identification numbers
11E, 22E, 23E, and 32E on the auxiliary switch blocks apply to the complete
contactors.
Important
Auxiliary switch blocks in acc. with EN 50 012 can only be combined with
contactors of frame size S00 that have 1 NO contact in the basic unit
because they are coded. These auxiliary switch blocks cannot be combined
with contactors that have an NC contact in the basic unit (identification num-
ber 01).
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-63
Auxiliary contacts S00 The following graphic shows you the auxiliary contacts that can be used to
expand the contactors of frame size S00 (terminal marking in acc. with
EN 50 012 or EN 50 005):
Fig. 3-31: Auxiliary contacts, contactors for switching motors (frame size S00)
Expanding the contac-
tors of frame sizes S0
to S3
With contactors of frame sizes S0 to S3, you can also attach 1-pole auxiliary
switch blocks instead of 4-pole auxiliary switch blocks.
The terminal markings of the 1-pole auxiliary switch blocks consist of
sequence numbers (location ID) on the basic unit and function numbers on
the auxiliary switch blocks.
Hilfsschütze
DIN EN50 005,
8 oder 6 Kontakte
contactors, DIN EN 50 012,
1 auxiliary contact
identification no. 01
identification no. 10E
identification no.
32E, 23E, 22E, 11E
auxiliary switch
blocks,
4, 3 or 1 contact(s)
identification no. 40,
31, 22, 20, 11, 02
auxiliary switch
blocks,
4 or 2 contacts
identification no. 32E,
23E, 22E, 11E
contactors,
DIN EN 50 012
5, 4 or 2
auxiliary contacts
identification no. 40,
31, 22, 20, 11, 02
contactors,
DIN EN 50 005,
5 or 3
auxiliary contacts
NSB00450
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-64 A5E40534713002A/RS-AA/001
Auxiliary contacts
S0 to S3
The following graphic shows you the front mount auxiliary contacts that can
be used to expand the contactors of frame sizes S0 to S3 (terminal marking
in acc. with EN 50 005 or EN 50 012):
4-pole auxiliary contact blocks 1-pole aux. contact blocks
Fig. 3-32: Auxiliary contacts for contactors for the switching of motors (frame sizes S0 to S3)
3.4.1.2 Terminal markings of the contactors and control relays combined with auxiliary switch
blocks
Terminal markings in
acc. with EN 50 005
The terminal markings for contactors are defined in EN 50 005 that contains
general directives. The following summarizes the basic rules that apply to
switching elements of auxiliary circuits:
• The terminals of auxiliary contact elements are designated by two-digit
numbers.
• The digit in the unit place is a function number (NC contact: 1 and 2,
NO contact: 3 and 4).
• The digit in the tens place is a sequence number (all the switching ele-
ments of the same function must have different sequence numbers).
Identification numbers
(EN 50 005)
The identification numbers mean:
Switching devices with a fixed number of auxiliary contact elements (NO
contacts or NC contacts) can be assigned a two-digit identification number.
The first digit represents the number of NO contacts and the second one the
number of NC contacts.
There is no information on the sequence of NO contacts and NC contacts in
the contactor/control relay.
Note
The identification numbers on the auxiliary switch blocks only apply to the
attached auxiliary switches.
NSB00452a
contactors
3RT10 2.
3RT10 3.
3RT10 4.
without auxiliary
contact
auxiliary switch blocks,
with 4 contacts 3RH19 21-. FA..
in acc. with DIN EN 50 005
identification no. 40, 31, 22,
04, 22U
contactor arrangements
with a 4-pole auxiliary switch
block, terminal markings
in acc. with DIN EN 50 005
identification no. 40, 31, 22, 02
auxiliary switch blocks,
with 4 contacts 3RH19 21-. HA..
in acc. with DIN EN 50 012
identification no. 31, 22, 13
contactor arrangements with
a 4-pole auxiliary switch block,
terminal markings
in acc. with DIN EN 50 012
identification no. 31, 22, 13
1 NO 1 O
NSB00451a
auxiliary switch blocks,
with 1 contact
possible contactor
arrangements with 1-pole
auxiliary switch blocks,
terminal markings in acc. with
DIN EN 50 005 or
DIN EN 50 012
identification numbers:
01, 10
11
21, 12
31, 22, 13
02, 20
03, 30
04, 40
contactors
3RT10 2.
3RT10 3.
3RT10 4.
without
auxiliary contact
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-65
EN 50 012/
EN 50 011
For certain equipment such as auxiliary contact elements of contactors and
control relays, the EN 50 012 and EN 50 011 standards also apply.
The EN 50 012 defines the terminal markings and identification numbers for
auxiliary contact elements of particular contactors.
The terminal markings of the auxiliary contact elements match the terminal
markings of corresponding control relays with the ID letter E (in acc. with
EN 50 011). For auxiliary contact elements of contactors with the same iden-
tification number, the terminal marking must correspond to the sequence
defined in the standard.
Graphical symbols
for auxiliary contact
elements
Below are some examples of graphical symbols for auxiliary contact ele-
ments of contactors that comply with EN 50 012:
Fig. 3-33: Graphical symbols for auxiliary contact elements in acc. with EN 50 012 (excerpt)
Device circuit dia-
grams
The following device circuit diagrams of the auxiliary switch blocks for con-
tactors that switch motors contain the terminal markings in acc. with
EN 50 012:
3RT101 Contactor (Frame size S00)
3RT102 contactors to 3RT104, 3RT14 (Frame sizes S0 to S3)
4-pole front mount auxiliary contact blocks 3RH1921-1HA/1XA..,r
Fig. 3-34: Device circuit diagrams of the auxiliary switch blocks (EN 50 012)
14 22 34 44
13 21
33
43
14 22 34 44
13 21 33 43
Coil Main contact elem.
54
53
ID
no Auxiliary contact elements ID
no Auxiliary contact elements
14 22 32 44
13 21 31 43
14 22 32 44
13 21 31 43
54
53
ID
no Auxiliary contact elements
14 22 32 42
13 21 31 41
14 22 32 42
13 21 31 41
54
53
31
41
22
32
13
23
13513
14642
A2( )
A1(+) 21 31 43
443222
2 NO + 2 NC contacts
ID number. : 22E 2 NO + 3 NC contacts
ID number: 23E 3 NO + 2 NC contacts
ID number: 32E
13513
14642
A2( )
A1(+) 21 31 41
423222
53
54
13513
14642
A2( )
A1(+) 21 31 43
443222
53
54
2 NO + 2 NC contacts
ID number: 22
13513
14642A2( )
A1(+) 21
22
31
32
43
44
NSB00487
3 NO + 1 NC contacts
ID number: 31E 2 NO+ 2 NC contacts 1 NO + 3 NC contacts
13 21 33
342214
43
44
13 21 31
322214
43
44
13 21 31
322214
41
42
53 61 71
726254
83
84
NSB01354
2 NO+ 2 NC contacts
ID number: 22
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-66 A5E40534713002A/RS-AA/001
3.4.1.3 Auxiliary switches that can be attached to 3RH1 control relays
The 3RH1 control relays can be expanded by up to 4 contacts using attach-
able auxiliary switch blocks.
Definition:
EN 50 011
The main standard for the designation of switching elements for the control
relays is EN 50 011, which defines the terminal markings, identification num-
bers, and identification letters of certain control relays using a specific
sequence of the switching elements. The number, type, and position of the
switching elements must be specified using an identification number fol-
lowed by an identification letter.
In the case of 8-pole control relays, the letter "E" means that four NO con-
tacts have to be arranged on the lower (rear) contact level.
Expansion using
auxiliary switch blocks
The following example of an control relay with 4 NO contacts (contact desig-
nation in acc. with EN 50 011 and EN 50 005) explains how auxiliary switch
blocks are added on:
Fig. 3-35: Auxiliary contacts for control relays
Hilfsschütze
DIN EN50 005,
8 oder 6 Kontakte
NSB00067
identification no.
31E, 22E
identification no. 40E
identification no. 80E,
71E, 62E, 53E, 44E
auxiliary switch blocks,
4 contacts
identification no.
40, 31, 22, 20, 11, 02
auxiliary switch blocks,
4 or 2 contacts
identification no. 80E,
71E, 62E, 53E, 44E
auxiliary contacts,
DIN EN 50 011
8 contacts
identification no.
40, 31, 22, 20, 11, 02
auxiliary contacts,
DIN EN 50 005,
8 or 6 contacts
auxiliary contactors,
DIN EN 50 011, 4 contacts
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-67
Contact designation Auxiliary switch blocks - for example, 3RH1911-1GA22 (2 NO + 2 NC con-
tacts) in acc. with EN 50 011 - can only be attached to control relays with
4 NO contacts (3RH1140-.....) because they are coded. The identification
number (62E) printed on the auxiliary switch block (6 NO + 2 NC contacts)
applies to the whole contactor.
NO and NC contacts are in the same position on all the control relays with
the identification number 62E (EN 50 011).
This means contactors can be replaced without changing the wiring, which
therefore makes wiring very easy. You can attach auxiliary switch blocks that
comply with EN 50 005 on all 3RH11 control relays and 3RT101 motor con-
tactors. For example, the 3RH1911-1FA22 auxiliary switch block (2 NO +
2 NC contacts) has the identification number 22, and this only applies to the
attached auxiliary switch block.
Graphical symbols of
the control relays
Below are some examples of graphical symbols for control relays with the
identification letter E that comply with EN 50 011:
Fig. 3-36: Graphical symbols for auxiliary contactors (control relays) in acc. with EN 50 011 (excerpt)
13 23 33 43
14 24 34 44
13 21 33 43
14 22 34 44
14 22 32 44
13 21 31 43
40 E
31 E
22 E
14 22 32 42
13 21 31 41
13 E
12 22 32 42
11 21 31 41
04 E
Coil Switching elements
ID
no
13 23 33 43
14 24 34 44
13 23 33 43
14 24 34 44
14 24 34 44
13 23 33 43
80 E
71 E
62 E
14 24 34 44
13 23 33 43
53 E
14 24 34 44
13 23 33 43
44 E
Coil Switching elements
53 63 73 83
54 64 74 84
53 61 73 83
54 62 74 84
54 62 72 84
53 61 71 83
54 62 72 82
53 61 71 81
52 62 72 82
51 61 71 81
ID
no.
4-pole control relays 8-pole control relays
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-68 A5E40534713002A/RS-AA/001
Device circuit dia-
grams
The following device circuit diagrams of the control relays contain terminal
markings in acc. with EN 50 011:
Fig. 3-37: Device circuit diagrams
Position diagrams The following position diagrams of the auxiliary switches of frame sizes S00
to S3 also apply to leading and lagging contacts:
Fig. 3-38: Position diagrams of the auxiliary switches (frame sizes S0 to S3)
13 23 33 43
44342414
A2( )
A1(+)
NS2-5552
13 21 33 43
44342214
A2( )
A1(+)
NS2-5553
13 21 31 43
44322214
A2( )
A1(+)
NS2-5554
4 NO contacts
Identification number: 40 E
3 NO contacts + 1 NC contact
Identification number: 31 E
2 NO contacts + 2 NC contacts
Identification number: 22 E
8 NO contacts
Identification number: 80 E
7 NO contacts + 1 NC contacts
Identification number: 71 E
6 NO contacts + 2 NC contacts
Identification number: 62 E
5 NO contacts + 3 NC contacts
Identification number: 53 E
4 NO contacts + 4 NC contacts
Identification number: 44 E
13 23 33 43
44342414
A2( )
A1(+)
NS2-5558
53 63 73 83
84746454
13 23 33 43
44342414
A2( )
A1(+)
NS2-5559
53 61 73 83
84746254
13 23 33 43
44342414
A2( )
A1(+)
NS2-5560
53 61 71 83
84726254
13 23 33 43
44342414
A2( )
A1(+)
NS2-5561
53 61 71 81
82726254
13 23 33 43
44342414
A2( )
A1(+)
NS2-5562
51 61 71 81
82726252
NC
NO
NC
NO
On
Off
On
Off
On
Off
On
Off
Standard
auxiliary
switch
Overlapping
auxiliary
switches
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-69
3.4.2 Time-delay auxiliary switches
Variants The following variants of the time-delay auxiliary switch are available:
• On-delay
• Off-delay without auxiliary supply
• Wye-delta function
On-delay and off-delay
functions
The time-delay auxiliary switch in the on-delay or off-delay variants has the
following features:
• It facilitates time-delayed functions up to 100 s
• 3 single time areas
• Contains a relay with 1 NO contact and 1 NC contact that switches the on-
delay or off-delay depending on the version.
Wye-delta function The time-delay auxiliary switch with wye-delta function has the following
features:
• Equipped with a delayed and an instantaneous NO contact between
which there is an idle time of 50 ms.
• The delay time of the NO contact can be set at between 1.5 s to
30 seconds.
• The contactor on which the time-delay auxiliary switch block is mounted
functions instantaneously.
Conductor cross-
sections
The permissible conductor cross-sections correspond to the auxiliary con-
ductor terminals of the corresponding frame size.
3.4.2.1 Frame size S00 (3RT1916-2E, -2F, -2G)
Description The time-delay auxiliary switch of frame size S00 has the following features:
• The power supply is provided using plug-in contacts directly via the coil
connections of the contactors, parallel to A1/A2.
• The time function is activated when the contactor that has the auxiliary
switch block mounted on it is turned on.
• The off-delay version functions without an auxiliary supply.
• The minimum on-time is 200 ms.
• To dampen switching overvoltages of the contactor coil, a varistor is inte-
grated in the time-delay auxiliary switch of frame size S00.
Information on
mounting
Note about the off-delay without auxiliary supply function:
The position of the output contacts is not defined at shipment (bistable
relay). Apply the control supply voltage once, and then switch it off again to
set up the initial state of the contacts.
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-70 A5E40534713002A/RS-AA/001
Important
The time-delay auxiliary switch cannot be added to contactor relays.
Installation/removal Caution
Switch off the supply voltage to A1/A2 before you install or remove the time-
delay auxiliary switch block.
Fig. 3-39: Time-delay auxiliary switch block (frame size S00)
Connection When they are attached, the connections for the rated control supply voltage
are connected to the contactor below by the integrated spring contacts of
the time-delay auxiliary switch.
Function
diagrams
Fig. 3-40: Function diagrams of the time-delay auxiliary switches (frame size S00)
The time-delay auxiliary switch
is attached to the front of the
contactor.
2
1
3RT1.1
3RT1916-2E
3RT1916-2F
3RT1916-2G
t
On-delay
1 NO and 1 NC contact
Off-delay
Without auxiliary supply
1 NO and 1 NC contact
Wye-delta function
1 NO contact, instantaneous
1 NO contact, delayed
t
NSK-7932
A1/A2
27/28
35/36
t
NSK-7955
A1/A2
Y 27/28
D 37/38
50 ms
t
A1/A2
27/28
35/36
200 ms
>
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-71
3.4.2.2 Frame sizes S0 to S3 (3RT1926-2E, -2F, -2G)
Description The time-delay auxiliary switch for frame sizes S0 to S3 has the following
features:
• The power supply of the time-delay auxiliary switch is via two terminals
(A1/A2).
• The time delay for the time-delay auxiliary switch can be activated by
parallel connection to any contactor coil, or by any source of voltage.
• The off-delay version works without an auxiliary supply.
• The minimum on-time is 200 ms.
• In addition to the time-delay auxiliary switch, a 1-pole auxiliary switch
block can be snapped onto the front of the contactor.
• The time-delay auxiliary switch does not have any integrated overvoltage
damping for the connected contactor.
Information on
mounting
Note about the off-delay without auxiliary supply function:
The position of the output contacts is not defined at shipment (bistable
relay). Apply the control supply voltage once, and then switch it off again to
set up the initial state of the contacts.
Installation/removal
Fig. 3-41: Time-delay auxiliary switch block (frame sizes S0 to S3)
Connection The A1 and A2 terminals for the rated control supply voltage of the time-
delay auxiliary switch are connected to the respective contactor with cables.
Terminal markings Because an additional auxiliary switch block can be snapped onto the con-
tactor, the terminals of the delayed contacts have been designated as -5/-6
(NC contact) and -7/-8 (NO contact).
The time-delay auxiliary switch
is attached to the front of the
contactor.
2
1
3RT1.2
3RT1.3
3RT1.4
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-72 A5E40534713002A/RS-AA/001
Function diagrams
Fig. 3-42: Time-delay auxiliary switches, function diagrams (frame sizes S0 to S3)
3.4.3 Solid-state time relay blocks with semiconductor output
The solid-state time relay blocks are suitable for AC and DC operation.
To dampen switching overvoltages of the contactor coil, a varistor is inte-
grated.
Variants The following variants of the time-delay auxiliary switch are available:
• On-delay (integrated varistor)
• Off-delay with auxiliary supply (integrated varistor)
On-delay and off-delay
functions
The time-delay auxiliary switch in the on-delay or off-delay with an auxiliary
supply has the following features:
• It facilitates time-delayed functions up to 100 seconds.
• 3 individual time ranges
• Contactors with a solid-state time relay block close and open with a delay
according to the time set.
Connection: on-delay
time relay block
The on-delay time relay block is connected in series to the contactor coil; the
A1 terminal of the contactor coil must not be separately connected to the
control supply.
Connection: off-delay
time relay block
When an off-delay time relay block is attached, the contactor coil is con-
nected via the time relay block; the A1 and A2 terminals of the contactor coil
must not be separately connected to the control supply.
Conductor cross-
sections
The permissible conductor cross-sections correspond to the auxiliary con-
ductor terminals of the corresponding frame size.
On-delay
1 NO and 1 NC contact
Off-delay without auxiliary supply
1 NO and 1 NC contact
Wye-delta function
1 NO contact, instantaneous
1 NO contact, delayed
t
NSK-7932
A1/A2
27/28
35/36
t
NSK-7933a
A1/A2
27/28
35/36
200 ms
>
t
NSK-7955
A1/A2
Y 27/28
D 37/38
50 ms
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-73
Notes on configura-
tion
The control of loads parallel to the start input is not permissible in AC opera-
tion. See the relevant circuit diagram ¿ below.
The off-delay solid-state time relay blocks (3RT1916-2D.../3RT1926-2D...)
have a live start input (B1). With AC voltage, this can imitate the control of a
parallel load on the B1 terminal. In this case, an additional load (contactor
K3, for example) should be wired as shown in circuit diagram À.
Fig. 3-43: Control of loads
3.4.3.1 Frame size S00 (3RT1916-2C, -2D)
Caution
Switch off the supply voltage to A1/A2 before you install or remove the solid-
state time relay block.
Installation/removal Important
The time-delay auxiliary switch cannot be attached to contactor relays.
The solid-state time relay block of frame size S00 is attached to the front of
the contactor and latched into place with a pushing movement.
Fig. 3-44: Solid-state time relay block with semiconductor output, installation (frame size S00)
¿ À
N
L1
S1
A2A1 B1
A2A1
K3
K1
K2
N
L1
K3
A2A1 B1
A2A1
S1
K3
K1
K2
K1 time relay block
K2 contactor
1
21
2
Installation Removal
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-74 A5E40534713002A/RS-AA/001
Connection When the solid-state time relay block is installed, it is connected at the same
time with the A1 and A2 coil connections of the contactor by the plug-in
pins. Coil connections of the contactor that are not required are covered by
covers on the housing of the time relay block, thus preventing inadvertent
connection.
Function diagrams 3RT19 16-2C, on-delay 3RT19 16-2D, off-delay
Fig. 3-45: Solid-state time relay block with semiconductor output, function diagrams
(frame size S00)
Circuit diagrams 3RT19 16-2C... 3RT19 16-2D...
on-delay off-delay (with auxiliary voltage)
Frame size S00 Frame size S00
Fig. 3-46: Solid-state time relay with semiconductor output, circuit diagrams (frame size S00)
3.4.3.2 Frame sizes S0 to S3 (3RT19 26-2C, -2D)
Note on configuration Caution
The solid-state time relay block with a semiconductor output (3RT1926-2C...,
-2D...) must not be used for 3RT104 contactors of frame size S3 with US
≤42 V because the coil current used for the output semiconductor is too
high.
The solid-state time relay block must not be attached to the lower coil con-
nections.
Installation/removal
Fig. 3-47: Solid-state time relay with a semiconductor output, installation (frame sizes S0 to S3)
NSK-7937a
A1/A2
A1/A2
t
Time relay
Contactor
NSK-7938a
A1/A2
A1/A2
B1/A2
35 ms
>
t
Time relay
Contactor
¿Solid-state time relay block
ÀContactor
N/L
NSB00554
A2
A1
1
2
L1/L+
S1
NSB00555
L1/L+
A2
A1 B1
S1
1
2
N/L
The solid-state time relay block
for the contactors of frame sizes
S0 to S3 is attached at the top on
the A1 and A2 coil connections
of each contactor, connecting the
time relay electrically and
mechanically with pins.
2
1
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-75
Circuit diagrams 3RT19 26-2C... 3RT19 26-2D...
on-delay off-delay (with auxiliary supply voltage)
Frame sizes S0 to S3 Frame sizes S0 to S3
Fig. 3-48: Solid-state time relay with semiconductor output, circuit diagrams
Function diagrams 3RT19 26-2C..1, on-delay 3RT19 26-2D..1, off-delay
Fig. 3-49: Solid-state time relay with semiconductor output, function diagrams
3.4.4 Additional load module (3RT1916-1GA00)
Field of application The additional load module for the contactors of frame size S00 is used to
increase the permissible residual current and to limit the residual voltage of
SIMATIC semiconductor outputs.
Mode of operation Malfunctions can sometimes occur when SIRIUS contactors and auxiliary
contactors of frame size S00 work together with SIMATIC output modules
whose residual current at signal "0" is higher than is permissible for the con-
tactors of frame size S00. The maximum permissible residual current of the
electronic components is 3 mA for contactors of frame size S00 with a
230 V AC drive, and in the case of higher residual currents, the contactors
no longer drop down.
The additional load module is used to ensure the safe switching off of S00
contactors in the case of direct control by programmable controllers via
230 V AC semiconductor outputs.
The additional load module takes on the function of overvoltage damping at
the same time.
¿time relay block
Àcontactor
N/L
NSB00556
L1/L+
A2
A2
A2
A1
A1
A1
1
2
N/L
NSB00557
L1/L+
S1 A2
A1 B1
A2
A2
A1
A1
1
2
A2 can either be connected to
the contactor or the timing
relay with N(L-).
- - - connect as preferred
A2 may only be connected
with N(L-) from the timing
relay
x do not connect!
NSK-7937a
A1/A2
A1/A2
t
Time relay
Contactor
NSK-7938a
A1/A2
A1/A2
B1/A2
35 ms
>
t
Time relay
Contactor
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-76 A5E40534713002A/RS-AA/001
Technical specifica-
tions
Rated voltage AC 50/60 Hz
180 V to 255 V
Rated output power 1.65 W at 230 V
Permissible contactor types 3RT1.1
3RT1.
Associated coil type P0 (230 V, 50/60 Hz)
N2 (220 V, 50/60 Hz)
P6 (220 V, 50 Hz/240 V, 60 Hz)
Operating range 0.8 to 1.1 Us
Installation The additional load is connected in parallel to the contactor coil. It has the
same construction as the surge suppressor and is attached on the front of
the contactors with or without an auxiliary switch block.
3.4.5 Coupling element for frame sizes S0 to S3 (3RH1924-1GP11)
Field of application The 3RH1924-1GP11 coupling link is intended for contactors of frame sizes
S0 to S3. It can be controlled by a programmable controller output because
the operating range of 17 to 30 V DC is permissible.
Mode of operation A contactor of frame size S0 to S3 can be controlled, for example, at
24 V DC with a low control level (< 0.5 W) from a programmable controller
output. The control voltage for the coupling link and the rated control supply
voltage for the contactor are electrically isolated. An LED indicates the
switching state of the coupling link.
To dampen switching overvoltages of the contactor coil, a varistor is inte-
grated in the coupling link.
Installation Caution
Switch off the supply voltage applied to L1 and N before installation.
Fig. 3-50: Coupling link (frame sizes S0 to S3)
The coupling link is inserted with its
two integrated mounting pins directly
onto the coil connections of the con-
tactor.
2
1
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-77
Conductor cross-
sections
The permissible conductor cross-sections correspond to the auxiliary con-
ductor terminals of the corresponding frame size.
Circuit diagram Coupling link 3RH19 24-1GP11 for control from a PLC
Fig. 3-51: Coupling link, circuit diagram (frame sizes S0 to S3)
Technical specifica-
tions
You can find the technical specifications of the coupling link in Section 6.7,
“Technical specifications”.
B1+/B2-: Control voltage 24 V DC
L1/N: Rated control supply voltage for the selected contactor
K1 Coupling link
K2 Contactor
L1 B2-B1+
A1
N
A2
U
U
K2
K1
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-78 A5E40534713002A/RS-AA/001
3.4.6 Surge suppression
When contactor coils are de-energized, overvoltage occurs (inductive load).
Voltage peaks of up to 4 kV with a rate of rise in voltage of 1 kV/ms can
result (showering arcs).
The consequences of this are:
• Heavy contact erosion and thus premature wearing of the contacts that
switch the coil
• Unwanted signals can occur that may cause false signals in electronic
controllers.
All contactor coils, therefore, should be damped against switching over-
voltages, particularly when working with electronic controllers.
Oscillograms The following oscillograms illustrate the behavior at disconnection of contac-
tor coils without and with overvoltage damping:
Coils without surge
suppression
Fig. 3-52: Disconnecting contactor coil without suppression
Oscillogram of a de-energized coil of an auxiliary contactor. When suppres-
sion is not used:
Showering arcs can be clearly seen (voltage peaks of up to approximately
4 kV). After de-energization has been started, showering arcs occur for
approximately 250 µs, and after that the oscillation is only damped.
Disconnection of an unused contactor coil
0
100
1000
3000
USp [V]
50 t[μs]
USp
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-79
Varistor
Fig. 3-53: Circuit with a varistor (AC/DC operation)
This is what happens when a coil is de-energized that is connected to a
varistor (voltage-dependent resistor):
Voltage peaks still occur. They are cut off at approximately 400 V and have a
shorter overall duration (approximately 50 µs).
(Note: The oscillogram is cut off, and the voltage is reduced to zero after
approximately 3 ms.)
A varistor is suitable for AC and DC operation.
The opening time of the contactor is extended by approximately 2 to 5 ms.
RC-Element
Fig. 3-54: Circuit with an RC element (AC/DC operation)
This is what happens when a coil is de-energized that is connected to an RC
element:
The amplitude and rate of rise of the switching overvoltage are reduced by
the capacitor. Showering arcs no longer occur. The voltage swings briefly to
400 V and then slowly drops down. This represents ideal damping.
Disadvantage: The component is larger and generally more expensive.
RC elements are suitable for AC and DC operation.
Only a minimal opening time occurs (under 1 ms).
Circuit with a varistor
(AC/DC operation)
0
20
200
USp [V]
0t[μs]
USp
Circuit with an RC element
(AC/DC operation)
0
5
200
USp [V]
t[ms]0
USp
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SIRIUS System Manual
3-80 A5E40534713002A/RS-AA/001
Diode
Fig. 3-55: Circuit with a diode (DC operation)
This is what happens when a coil is de-energized that is connected to a
diode:
Advantages: No overvoltage occurs during de-energization. The diode block
becomes effective at 0.6 V.
Disadvantage: The diode can only be used for DC operation.
The opening time of the contactor is considerably increased and amounts to
6 to 9 times the normal opening time.
This increased break time can be used, if necessary, for control purposes,
such as for bridging brief interruptions in voltage.
Zener diodes (diode combinations) are available for shorter opening times.
The opening time then amounts to 2 to 6 times the normal opening time.
Surge suppressors The following surge suppressors are available for the 3RT1 contactors:
Circuit with diode
(DC operation)
0
200
20
USp [V]
0t[μs]
USp
= 0,6 V = USP
of the Diode
^
Surge suppressor With LED Without LED
for S00 for S00 for S0 for S2, S3
Suppression diode xx——
Diode combination:
suppression diode and
Zener diode
—xx x
Varistor xxx x
RC element —xx x
Table 3-31: Surge suppressor
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-81
Selection aid The following table gives you a comparison of the effects of the different
surge suppressors:
1) The rate of drop is reduced once or twice to zero for a few ms:
• A safe drop is always ensured in the case of switching without current.
• The contact pieces are subjected to a greater thermal load when
switching with current. When switching at the upper current limit, this can
result in overload.
Surge suppressor
Suitable for
control supply
voltage
Overvoltage
is limited Effect
Suppression diode/
freewheeling diode
DC 0.6 V • Opening time is considerably
greater (6 to 10 times)
• A two-stage drop1) cannot be
ruled out in the case of contactors
as of frame size S0
Diode combination:
suppression diode
Zener diode
DC To Zener voltage • Opening time is greater
(2 to 6 times)
• A 2-stage drop no longer occurs
Varistor AC/DC To varistor voltage
(current-dependent)
• Opening time is only slightly
greater (2 to 5 ms)
RC element AC/DC Corresponds to
the dimensioning
• Opening time remains unchanged
• Rate of rise in voltage is damped
Table 3-32: How surge suppressors work
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-82 A5E40534713002A/RS-AA/001
Installation
Fig. 3-56: Surge suppressors, installation
Installation instruc-
tions for frame sizes
S0 to S3
Important
The 3RT1926-1E.00 diode combination is inserted from above. The direction
of attachment is defined by a code.
Alternatively, the 3RT19 26-1T.00 diode combination can be inserted from
below. The direction of attachment is not coded, but the terminals are
marked with "+" and "-" so that the direction is clear.
Frame size S00
The surge suppressor is attached
on the front of the contactors.
There is space next to the
attached auxiliary switch block.
The direction of attachment is
defined by a code.
Frame size S0 to S3
Varistors, RC elements, and
diode combinations can either be
inserted and snapped on from
above or below directly onto the
coil terminals.
To remove them, press the varis-
tors, RC elements, and diode
combinations forwards, and
remove them from the recess.
2
1
2
1
1
2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-83
3.4.7 Other accessories
3.4.7.1 LED module for indicating contactor control (3RT19 26-1QT00)
Description The LED module can be connected to the coil terminals of the contactors of
frame sizes S0 to S3. It indicates the status of the contactors by means of
yellow LEDs.
Mode of operation The LED module can be used for AC/DC voltages of 24 V to 240 V.
The LEDs are connected bidirectionally to protect against polarity reversal.
Both LEDs light up in AC control, and one lights up in DC control, depending
on the polarity.
Connection The LED module is connected to the A1 and A2 coil terminals of the contac-
tor.
Installation The LED module is snapped onto the front in the openings intended for the
inscription plate.
Fig. 3-57: LED module
3.4.7.2 Auxiliary connecting lead terminal, 3-pole for frame size S3 (3RT19 46-4F)
Using the 3-pole auxiliary lead terminal, auxiliary and control cables can be
connected to the main cable terminals.
Conductor cross-sections of auxiliary connecting leads that can be con-
nected:
Screw-type terminals (1 or 2 conductors can be connected)
Single-core mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5) in acc. with
IEC 60 947;
Max. 2 x (0.75 to 4)
Finely stranded with wire end
ferrule mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5)
AWG cables, single- or multi-
core AWG 2 x (20 to 16); 2 x (18 to 4); 1 x 12
Terminal screws M3
Tightening torque Nm 0.8 to 1.2 (7 to 10.3 lb.in)
Table 3-33: Conductor cross-sections of 3-pole auxiliary connecting lead terminals (for frame size S3)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-84 A5E40534713002A/RS-AA/001
3.4.7.3 EMC interference suppression module (3RT19 16-1P..)
In the case of motors or various inductive loads, back-e.m.f (electromotive
force) is produced when disconnected. This can produce voltage peaks of up
to 4000 V with a frequency range of 1 kHz to 10 MHz and a rate of voltage
variation of 0.1 to 20 V/ns.
Capacitive coupling to various analog and digital signals makes suppression
necessary in the load circuit.
Description The connection of the main conducting path to the EMC suppression mod-
ule reduces the contact sparking that is responsible for contact erosion and
many of the disturbances, which in turn supports an EMC-compatible config-
uration.
Mode of operation The EMC suppression module reduces through 3 phases the radio-fre-
quency parts and the voltage peaks. The advantages of this are as follows:
• Longer service life of the contact pieces
• Higher operational reliability and high system availability
A fine grading within the performance class is not required because smaller
motors have greater inductance due to their construction, and one EMC sup-
pression module is thus sufficient for all non-stabilized drives up to 5.5 kW.
Variants Two electrical variants are available:
•RC circuit
• Varistor switching
Circuit diagrams
Fig. 3-58: Circuit diagrams
L1
L3
L2
R_L1
R_L2
R_L3
C_L1
C_L2
C_L3
U
U
U
M
3~
M
3~
2T1 4T2 6T3 2T1 4T2 6T3
V_L1
V_L2
V_L3
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-85
Installation
Fig. 3-59: EMC suppression module
RC circuit The RC circuit is suitable:
• For reducing the rate of rise
• In RF damping
Effective suppression can be achieved for a wide range of applications.
Varistor circuit A varistor circuit can absorb a high level of energy and can be used for fre-
quencies from 10 to 400 Hz (stabilized drives). There is no limit below the
buckling stress.
3.4.7.4 Soldering pin adapter for frame size S00 (3RT19 16-4KA.)
Description The standard contactors of frame size S00 in the SIRIUS range can be
soldered onto printed circuit boards by means of the soldering pin adapter.
Soldering pin connection is possible:
• For contactors with an integrated auxiliary contact
• For contactors with an attached 4-pole auxiliary switch block
• For the reversing wiring of the S00 contactors. This involves carrying out
the reversing wiring before soldering it on the printed circuit board
Mounting main
contacts
Fig. 3-60: Soldering pin connection, mounting
The EMC suppression module is
attached to the underside of the con-
tactor. To do this, hook the EMC sup-
pression module with both hooks onto
the contactor, and push it upward until
the connection pins of the EMC
module are firmly in place in the termi-
nal openings of the contactor.
1
23RT19 16-1P..
The soldering pin connectors are
inserted above and below in the
screw-type terminals of the con-
tactors.
1
4
2
3
3
2
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SIRIUS System Manual
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Mounting on 4-pole
auxiliary switch block
Fig. 3-61: Mounting the soldering pin connection on a 4-pole auxiliary switch block
Removing the spring If necessary, the spring for attachment to the rail can be removed before the
soldering pin connection is mounted.
Fig. 3-62: Removing the spring from the soldering pin connection
2
1
2
3
1
2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-87
3.4.7.5 Paralleling links (3RT19 .6-4B.31)
If the current paths of a multiple pole switching device are connected in
parallel, then the total current is spread over the individual poles in accor-
dance to their ohmic resistance and their mutual inductive interference. The
ohmic resistance is mainly made up of the contact resistance of the con-
tacts, whose value can change with erosion and oxidation. Therefore there is
neither a symmetrical nor stabile distribution of current: individual current
paths can become overloaded and the overload trip may operate prematurely
causing nuisance tripping.
Continuous loading
when connected in
parallel
As long as there aren’t any other details in the catalog data, then the
following applies for continuous loading when connected in parallel:
• When three current paths are connected in parallel then the continuous
current can be 2.5 times of a single current path and 1.8 times the
continuous current with two current paths connected in parallel. It should
be noted that the making and breaking are not increased, because the
contacts don’t open and close at the same time and therefore the con-
tacts of an individual current path must be able to make or break the
entire current
• The wiring arrangement should be such that every current path has the
same cable length.
• An eventual short-circuit current would be divided with relationship to the
resistance of the current paths.
Attention: Thereby, the tripping current of an instantaneous electromag-
netic short-circuit trip may not be reached.
Making/breaking
capacity
The magnitude of making and breaking capacities of contactors, related to
load currents when connecting two/three poles in parallel are shown in the
table below:
3-pole switching 2 poles in
parallel
3 poles in parallel 4 poles in
parallel
Making
capacity
12 x Ie (utilization
category AC-4)
Breaking
capacity
10 x Ie (utilization
category AC-4)
Table 3-34: Parallel connection: making/breaking capacities
1
2
3
4
5
6
IeIeIe
IeIeIe
1
2
3
4
5
6
I
’
e
I
e
I’’e
1
2
3
4
5
6
Ie
1
2
3
4
5
6
7
8
I
’’
e
I
e
12 I′e⋅
18,
-----------------667 I′e⋅,=
12 I′′e⋅
25,
-------------------48 I′′e⋅,=
12 I′′e⋅
31,
-------------------39 I′′e⋅,=
10 I′e⋅
18,
-----------------555,I′e⋅=
10 I′′e⋅
25,
-------------------40,I′′e⋅=
10 I′′e⋅
31,
-------------------32,I′′e⋅=
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-88 A5E40534713002A/RS-AA/001
Designs The following designs of paralleling links are available:
2) Accessory for wye-delta combinations
Installation The paralleling links each be shortened a pole.
3.4.7.6 Sealing cover (3RT19 .6-4MA10)
With the use of contactors and control relays in safety related applications, it
must to be made certain that the manual activation of the contactor isn’t
possible.
For applications of this kind there is a sealing cover available as an accessory
that prevents unintentional manual activation. It is a see-through moulded
plastic cap with a clip that makes sealing the cover possible.
•Frame size S00: 3RT19 16-4MA10
Fig. 3-63: Contactor frame size S00 with sealable cover
• Frame sizes S0 to S3: 3RT19 26-4MA10
Fig. 3-64: Contactor frame sizes S0 to S3 with sealable cover
Frame sizes Design
S00 to S3 3-pole, without connection terminal (wye jumper)2)
S00 to S3 3-pole, with connection terminal
S00 4-pole, with connection terminal
Table 3-35: Paralleling links: designs
1
2
3
2
1
3
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A5E40534713002A/RS-AA/001 3-89
3.4.7.7 Terminal covers for frame sizes S2 to S3
To increase safety there are terminal covers available for contactors with
frame sizes S2 to S3:
Design Function required number Frame sizes
Cover
for box terminals
3RT19.6-4EA2
provides additional protection
against shock
2 covers each are
needed per contactor
(for the main connec-
tions on top and bot-
tom)
S2 to S3
Terminal cover
for ring-tongue and
busbar connection
3RT19.6-4EA1
to keep the clearance between
phases from determined connec-
tion cross-sections,
provides protection against
shock
S3
Table 3-36: Covers
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-90 A5E40534713002A/RS-AA/001
Installation The following graphics show how to install the covers:
Fig. 3-65: Terminal covers
Drawing Procedure Frame
size
3RT19.6-4EA2
The terminal covers for the
box terminals are pushed into
the guides on the box termi-
nals block then slid toward the
back until it locks into place.
S2 to S3
3RT19.6-4EA1
To mount the terminal covers
for ring-tongue and busbar
connection first remove the
box terminals block (only with
frame size S3), and slide the
cover on the guide rails.
S3
1 / 4
5
2
3
3TX7500-0A
3RT1956-4EA2
2
1
3
4
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-91
3.5 Mounting and connection
3.5.1 Mounting
Note Note the following during installation:
• If foreign bodies, such as wood shavings, can get into the device, the con-
tactors must be covered during installation.
• If there is a danger that dirt or dust could be present, or if there is a corro-
sive atmosphere, the contactors must be installed in a housing.
• Dust deposits must be vacuum cleaned.
Mounting
options
The mounting options for the contactors are uniform.
Panel mounting
The following graphic shows panel (screw) mounting:
Fig. 3-66: Panel (screw) mounting
Frame size Installation Removal
S00 to S3 Screw mounting Removed with a screwdriver
S00, S0 Snapped onto a 35 mm rail
(in acc. with EN 50 022) Removed without a tool
S2, S3 Snapped onto a 35 mm rail
(in acc. with EN 50 022) The snap-on spring can be opened with
a screwdriver
S3 Snapped onto a 75 mm rail
Table 3-37: Mounting
Frame sizes S00 and S0
The 3RT1 contactors can be screwed
onto a flat surface.
• With 2 M4 screws, diagonal
• Maximum tightening torque 2 Nm
• Washers and spring lock washers
must always be used
• The distance to grounded parts at the
side must be more than 6 mm
Frame sizes S0
In order to make panel mounting easier
(for example vertical accessability with
the use of insulated screwdriver) for the
frame size S0 contactors, the screw
adapter 3RT1926-4P can be used.
M4
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-92 A5E40534713002A/RS-AA/001
DIN rail mounting DIN rail mounting is possible:
• Frame size S00 to S3: on 35-mm DIN rail
• Frame size S3: on 75-mm DIN rail. The height of the DIN rail must be at
least 15 mm.
The following graphic shows DIN rail mounting:
Fig. 3-67: Snap-on attachment
Mounting position The contactors are designed for use on vertical surfaces. The following
installation positions are permissible for AC and DC operation:
Frame size S00 to S3:
Fig. 3-68: Installation positions (frame sizes S00 to S3)
Frame sizes S00 and S0
Place the device on the upper edge
of the rail, and press it downward
until it snaps onto the lower edge of
the rail.
Push the device downward to
release the tension of the mounting
spring, and remove the device by
tilting it.
Frame sizes S2 and S3
Place the device on the upper edge
of the rail, and press it downward
toward the rail until it snaps onto
the lower edge of the rail.
Using a screwdriver, push the lug
on the lower rear side of the device
downward to release the tension of
the mounting spring, and remove
the device by tilting it.
1
2
1
2
3
3
4
315°
225°
22,5°
22,5°
360°
22,5° 22,5°
Contactor alone or with overload relay 3RB10
with overload relay 3RU1
22.5 22.5
22.5 22.5
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-93
Installation on
horizontal surfaces
The following table provides a guide to installation on a horzontal surface:
Motor and auxiliary contacts (including the contactor relay variants) are
included in frame size S00.
Size AC/DC Output power Measure
S00 coupler
3RT10 1.
DC 3 to 5.5 kW Without restriction
S00 coupler
3RH11
DC Ie/AC-15
6 A/230 V
With 2 NO + 2 NC contacts:
stronger springs,
otherwise no restriction
S00 3RT10 1. DC 3 to 5.5 kW Without restriction
S00 3RH11 DC Ie/AC-15
6 A/230 V
Without restriction
S00 AC 3 to 5.5 kW/
and Ie/AC-15
6 A/230 V
Special variant
S0 coupler DC 5.5 to 11 kW Special variant
S0 DC 4 to 11 kW Special variant
AC 4 to 11 kW Without restriction
S2 AC 15 to 22 kW Special variant
DC 15 to 22 kW Installation on horizontal surface
not possible!
S3 AC 30 to 45 kW Special variant
DC 30 to 45 kW Installation on horizontal surface
not possible!
Table 3-38: Guide to installation on a horizontal surface
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-94 A5E40534713002A/RS-AA/001
Side-by-side
installation
No derating is necessary up to an ambient temperature of 60 °C for all the
contactors, even those in side-by-side installation.
In the case of contactors with an extended operating range (0.7 to 1.25 x Us)
that use a series resistor, side-by-side installation is permissible up to an
ambient temperature of +70 °C.
3.5.2 Connection
The SIRIUS contactors are available with the following terminal types:
• Frame sizes S00 to S3: screw-type terminals
• Contactors and auxiliary contactors of frame size S00: all the terminals are
also available as Cage Clamp terminals
• Contactors of frame sizes S0 to S3: the auxiliary switches and coil connec-
tions are also available with Cage Clamp terminals.
• Accessories: screw-type and (for most of the range) Cage Clamp termi-
nals
• The contactors of frame size S3 have removable box terminals for the
main conductor terminals. This enables the connection of ring lugs or bus-
bars.
Screw terminals The devices with screw-type terminals have the following features:
• All the connections have captive screws.
• All the terminal points are delivered in the open position.
• The screwdriver guides allow screwdriving machines to be used.
• In frame size S00, all the terminal screws for the main and auxiliary cir-
cuits have a uniform screw size (cross-tip Pozidriv 2 screws) and therefore
all require the same torque.
• In all the frame sizes (S00 to S3), the terminal screws are identical for the
auxiliary conductor terminals (Pozidriv 2, common bit and uniform torque).
Cage Clamp terminals In the variant with Cage Clamp terminals, the devices have the following fea-
tures:
• Recommended if high shock or vibration can be expected at the installa-
tion location.
• The terminals are also suitable for two-conductor connections
• All the terminals are accessible from the front and are easily visible.
• A maximum of two conductors with a cross-section of 0.25 mm2 up to a
maximum 2.5 mm2 can be used for each terminal point.
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-95
Cage Clamp termi-
nals: Procedure
The following illustration shows you how to use the Cage Clamp terminals:
Fig. 3-69: Cage Clamp terminals
Insulation stop With a conductor cross-section of ≤1mm
2, an insulation stop
(3RT19 16-4JA02) must be used to hold the conductor insulation securely.
An insulation stop line consists of 5 pairs of connection terminals. The fol-
lowing illustration demonstrates insertion into the Cage Clamp infeeds.
Fig. 3-70: Insulation stop with Cage Clamp terminals
Two-conductor
connection
It is possible with all the main, auxiliary, and control cable connections to
connect two conductor ends. They can also be used to connect untreated
conductors with different cross-sections. Box terminals each with 2 terminal
points are provided for the main conductor connection in contactors of
frame sizes S2 and S3.
This connection method also promises problem-free looping and parallel
connection without intermediate terminals.
Insert the screwdriver straight
into the opening up until the
stop (1) to open the clamping
unit. Insert the conductor in
the oval terminal opening (2),
and remove the screwdriver
(3).
1.5 mm² ... 2.5 mm²
2
1
3
≤ 1mm² 3RT19 16-4JA02
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-96 A5E40534713002A/RS-AA/001
Conductor
cross-sections
Permissible conductor cross-sections for main and auxiliary connections:
Frame size S00
Frame size S0
Frame size S2
Main and auxiliary conductors
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in Cage Clamp
2 x (0.5 to1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 2.5 mm²)
2 x (0.5 to1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 1.5 mm²)
— 2 x (0.25 to 2.5 mm²)
AWG 2 x (18 to 14) 2 x (24 to 14)
10
10
10
Control conductor: A1/A2
Auxiliary conductor: NO/NC
Main conductor
Screw-type
terminal
Cage Clamp
terminal
L1 L2 L3
T1 T2 T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in —2 to 2.5 Nm
18 to 22 lb·in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 2.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 1.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
— 2 x (0.25 to 2.5 mm²) —
AWG 2 x (18 to 14) 2 x (24 to 14) 2 x (14 to 10)
10
10
10
Control conductor: A1/A2
Auxiliary conductor: NO/NC
Main conductor
Screw-type
terminal
Cage Clamp
terminal
L1 L2 L3
T1 T2 T3
∅ 5...6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in —∅ 5...6 mm / PZ2
3 to 4.5 Nm
27 to 40 lb·in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 2.5 mm²) 2 x (0.75 to 16 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 1.5 mm²) 2 x (0.75 to 16 mm²)
1 x (0.75 to 25 mm²)
— 2 x (0.25 to 2.5 mm²) 2 x (0.75 to 25 mm²)
1 x (0.75 to 35 mm²)
AWG 2 x (18 to 14) 2 x (24 to 14) AWG 2 x (18 to 3)
1 x (18 to 2)
10
13
10
13
10
13
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-97
Frame size S3
Control conductor: A1/A2
Auxiliary conductor: NO/NC
Main conductor
Screw-type
terminal
Cage Clamp
terminal
L1 L2 L3
T1 T2 T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in —4 to 6 Nm
35 to 53 lb·in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 2.5 mm²) 2 x (2.5 to 16 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.25 to 1.5 mm²) 2 x (2.5 to 35 mm²)
1 x (2.5 to 50 mm²)
—— 2 x (10 to 50 mm²)
1 x (10 to 70 mm²)
AWG 2 x (18 to 14) 2 x (24 to 14) AWG 2 x (10 to 1/0)
1 x (10 to 2/0)
min
22
4
10
17
10
17
10
17
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-98 A5E40534713002A/RS-AA/001
3.5.3 Changing the magnetic coils
4 coil terminals Contactors of frame sizes S0 to S3 have 4 coil terminals.
The advantages of this are as follows:
• Variable connection, depending on the amount of space and cable routing
• Easier wiring of feeders
The connection options are:
• From below when in fuseless configuration with circuit breakers/MSPs
connected above the contactor.
• From above when contactors are used with an overload relay attached
directly below it.
• Diagonal
Changing the mag-
netic coils
The magnetic coils of frame sizes S0 to S3 contactors can be replaced in
accordance with the procedures shown below.
S0 - AC operation The following illustration shows the replacement of the magnetic coil in
frame size S0 in AC operation:
Drawing Step Procedure
1/2 Use screwdrivers to lever up the
release clips between the rear
and front contactor halves and
remove the front part of the con-
tactor.
3Remove the magnetic coil from
the rear half of the contactor.
4/5
5a
Push in the new magnetic coil,
and put the front section of the
contactor back on again.
Important:
Make sure that the springs
between the magnetic coil and
the front contactor half sit
straight on the spring support
pin.
Fig. 3-71: Replacing the magnetic coil (frame size S0/AC)
1
2
1
3
4
5
5a
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-99
S2 - AC operation
Drawing Step Procedure
1/2/3 Loosen the 2 screws between
the rear and front contactor
halves, and remove the mag-
netic coil from the rear part of
the contactor.
4Insert the new magnetic coil.
5/6 Replace the front half of the
contactor, and tighten the
2 screws again.
Fig. 3-72: Replacing the magnetic coil (frame size S2/AC)
1
1
2
3
4
6
6
5
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-100 A5E40534713002A/RS-AA/001
S2 - DC operation
Drawing Step Procedure
1
2
3
Loosen the 2 screws between
the rear and front contactor
halves. Loosen the two screws
on the plates that attach the
magnetic coil to the armature,
and remove the magnetic coil
from the rear half of the contac-
tor.
4Insert the new magnetic coil,
and screw on the two plates
again with the two screws.
5
6
Replace the front half of the con-
tactor, and tighten the 2 screws
again.
Make sure the springs are in
their correct position.
Fig. 3-73: Replacing the magnetic coil (frame size S2/DC)
1
1
2
3
4
6
6
5
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-101
S3 - AC operation
Drawing Step Procedure
1
2
3
Loosen the 2 screws between
the rear and front contactor
halves, and remove the mag-
netic coil from the rear part of
the contactor.
4Insert the new magnetic coil.
5
6
Replace the front half of the
contactor, and tighten the
2 screws again.
Fig. 3-74: Replacing the magnetic coil (frame size S3/AC)
2
1
1
3
4
5
6
6
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-102 A5E40534713002A/RS-AA/001
S3 - DC operation
Drawing Step Procedure
1
2
3
4
Loosen the 2 screws
between the rear and
front contactor halves.
Loosen the two screws on
the plates that attach the
magnetic coil on the arma-
ture, and remove the mag-
netic coil from the rear
half of the contactor.
5/6 Insert the new magnetic
coil, and screw on the two
plates again with the two
screws.
7/8 Replace the front half of
the contactor, and tighten
the 2 screws again.
Make sure the springs are
in their correct position!
Fig. 3-75: Replacing the magnetic coil (frame size S3/DC)
2
1
1
4
5
3
6
8
8
7
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-103
3.5.4 Changing the contact pieces
The contact pieces can be replaced in contactors of frame sizes S2 to S3.
When they are replaced for the third time, the arcing chamber also has to be
replaced.
3RT12 vacuum contactors can have the vacuum tubes replaced.
Frame size S2
Drawing Step Procedure
1/2/3 Remove the left identification
label, loosen the 2 screws on
the front plate of the contactor,
and remove the arc chute.
4/5 Remove the movable contact
piece by gently tipping it
upward and then pulling it out.
6Loosen the screws that attach
the two stationary contact
pieces.
7/8 Remove the old contact pieces
and screw on the new contact
pieces.
9Push in a new movable contact
piece.
10/11 Replace the arc chute of the
contactor and tighten the
2 screws on the front plate.
12 Replace the identification label.
Fig. 3-76: Replacing the contact piece (frame size S2)
3
2
12
4
5
6
9
7
8
11
12
10
11
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-104 A5E40534713002A/RS-AA/001
Frame size S3
Drawing Step Procedure
1/2 Loosen the 2 screws on the
front plate of the contactor,
and remove the arc chute.
3/4 Remove the movable contact
piece by gently tipping it
upward and then pulling it out.
5Loosen the screws that attach
the two stationary contact
pieces.
6/7 Remove the old contact pieces
and screw on the new contact
pieces.
8Push in a new movable contact
piece.
9/10 Replace the arc chute of the
contactor, and tighten the
2 screws on the front plate.
Fig. 3-77: Replacing the contact piece (frame size S3)
2
1
1
4
5
3
8
6
7
9
10
10
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-105
Contact pieces The following contact pieces can be used for the different rating classes:
Frame size S2 Frame size S3
Fig. 3-78: Contact pieces
3RT1034
15 kW
3RT1035
18.5 kW
3RT1036
22 kW
34 35 36
3RT1044
30 kW
3RT1045
37 kW
3RT1046
45 kW
3RT1446
140 A (AC-1)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-106 A5E40534713002A/RS-AA/001
3.6 Dimensional drawings (dimensions in mm)
3RT1. contactors / 3RH11 control relays - 3-pole
Frame size S00, screw connection
Fig. 3-79: 3RT1. 10 1/3RH11 contactors
Screw-type terminal with surge suppressor, auxiliary switch block and attached overload relay
Frame size S00, Cage Clamp connection
Fig. 3-80: 3RT10 1 contactors (Cage Clamp connection) with auxiliary contact block
2) Auxiliary switch block (also electronically optimized variant 3RH19 11-11N...)
3) Surge suppressor (also additional load module 3RT19 16-1GA00)
4) Drilling pattern
Distance to grounded parts at the side 6 mm
NSB00752g
57.5
5.3 8.6
51
5
5
67 99
106
2)
15.5
118
3)
67
45
35
50
5
4)
NSB01221
5
50
35
5 9
45
37
60
47
44
25
68 109
5
4)
36
2)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-107
Frame size S0, screw connection
Fig. 3-81: 3RT10 2 contactors, 3RT10 2 coupling contactors with surge suppressor, auxiliary contact block and installed overload relay
a = 3 mm at < 240 V
a = 7 mm at > 240 V
b = DC 10 mm deeper than AC
1) Side-mount auxiliary contact
2) Front-mount auxiliary contact block. 1-, 2- and 4-pole (also electronically optimized design 3RH1921-.FE22)
3) Surge suppressor
4) Drilling pattern
Distance to grounded parts at the side 6 mm
Frame size S0, Cage Clamp connection
Fig. 3-82: 3RT10 2 contactors 3RT10 2 coupling contactors with surge suppressor, auxiliary contact block and installed overload relay
(Cage Clamp connection)
a = 0 mm with Varistor < 240 V, diode combination
a = 3.5 mm with Varistor > 240 V
a = 17 mm with RC-element
b = DC 15 mm deeper as AC
1) Side-mount auxiliary contact
2) Front-mount auxiliary contact block (1-, 2- and 4-pole)
3) Surge suppressor
4) Drilling pattern
Distance to grounded parts at the side 6 mm
45
4)
a
b)
2)
1) 3)
NSB00753c
143
63
86
10 135
80
15.5
10 86
5
5
35
60
5
85
45
4)
a
b)
2)
1) 3)
NSB01220b
143
63
86
10 135
72
15.5
10
86
5
5
35
60
5
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-108 A5E40534713002A/RS-AA/001
Frame size S2, screw connection
Fig. 3-83: 3RT10 3 contactors with surge suppressor, auxiliary contact block and installed overload relay
Frame size S2, Cage Clamp connection
Fig. 3-84: 3RT10 3 contactors (Cage Clamp connection) with surge suppressor, auxiliary contact block and installed overload relay
a = 0 mm with Varistor < 240 V, diode combination
a = 3.5 mm with Varistor > 240 V
a = 17 mm with RC-element
b = DC 15 mm deeper as AC
1) Side-mount auxiliary contact
2) Front-mount auxiliary contact block (1-, 2- and 4-pole)
3) Surge suppressor
4) Drilling pattern
Distance to grounded parts at the side 6 mm
4)
a
3)
1)
b)
2)
NSB00754b
5
5
45
95
15915
55
75
171
112
20.5 107
10 110
5
80
20
NSB 01219a
75
171a
112
5
15 64
110
159
107 5
18
35
55
10
95
45
72
3)
2)
5
1)
Test
01
AH
STOP RESET
b) 14
4)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-109
Frame size S3, screw connection
Fig. 3-85: 3RT10 4, 3RT14 46 contactors
with surge suppressor, auxiliary contact blocks and installed overload relay
Frame size S3, Cage Clamp connection
Fig. 3-86: 3RT10 4 contactors (Cage Clamp connection)
with surge suppressor, auxiliary contact blocks and installed overload relay
a = 0 mm with Varistor, diode combination and < 240 V
a = 3.5 mm with Varistor and > 240 V
a = 17 mm with RC-element
b = DC 13 mm deeper as AC
1) Side-mount auxiliary contact
2) Front-mount auxiliary contact block (1-, 2- and 4-pole)
3) Surge suppressor
4) Drilling pattern
5) Attachment to 35 mm DIN rail and 15 mm deep according to EN 50 022 or 75 mm DIN rail according to EN 50 023
6) 4 mm Allen screw
Distance to grounded parts at the side 6 mm
3)
4)
a
1)
5)
6)
b)
2)
NSB00755b
7
60
130
5
5
100
221
28
70 10 10
80
134
13 183
5
132
146
72
NSB 01218a
23
45
70 10 10
146
28
100
224
a
5
13 86 134
183
7
131 5
2)
3)
b)
1)
60
130
5)
6)
HA
Test
01
STOP RESET
40
5
4)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-110 A5E40534713002A/RS-AA/001
3RT10 coupling contactors
Frame size S00
Fig. 3-87: 3RT10 1. with surge suppressor
Different dimensions for coupling contactors with Cage Clamp-connection: height 60 mm
3) Surge suppressor
4) Drilling pattern
3RT10 2. coupling contactor see illustration 3-96
3RT13 and 3RT15 contactors - 4-pole
Frame size S00
Fig. 3-88: 3RT13 1, 3RT15 1
Screw-type terminal with surge suppressor and auxiliary contact block
Different dimensions for contactors with Cage Clamp-terminals: height 60 mm, mounting depth with auxiliary contact block 110 mm
1) Auxiliary contact block (also electronically optimized design 3RH19 11-1N...)
2) Surge suppressor (also additional load module 3RT19 16-1GA00)
3) Drilling pattern
Distance to grounded parts at the side 6 mm
Frame size S0
Fig. 3-89: 3RT13 2, 3RT15 2
with surge suppressor and auxiliary contact block
a = 3 mm with < 250 V and installation of surge suppressor
a = 7 mm with > 250 V and installation of surge suppressor
b = DC 10 mm deeper as AC
1) Side-mount auxiliary contact (left)
2) Front-mount auxiliary contact block (max. two 1-pole auxiliary contact blocks)
3) Surge suppressor
4) Drilling pattern
Distance to grounded parts at the side: 6 mm
NSB00258a
57.5
8.6
5.3
45
67
99
535
50
5
3)
4)
NSB00757a
57.5
5.38.6 567 99
106
1)
2)
35
50
5
3)
45
NSB 00758e
b)
80
85
a
10 61 86
510
135
60
35
2)
4)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-111
Frame size S2
Fig. 3-90: 3RT13 3, 3RT15 3 with surge suppressor and auxiliary contact block
a = 0 mm with Varistor < 240 V
a = 3.5 mm with Varistor > 240 V
a = 17 mm with RC-element and diode combination
b = DC 15 mm deeper as AC
1) Side-mount auxiliary contact (right or left)
2) Front-mount auxiliary contact block (1-, 2- and 4-pole, also electronically optimized design 3RH19 21-1FE22)
3) Surge suppressor
4) Drilling pattern
5) Attachment to 35 mm DIN rail (15 mm deep) according to EN 50 022 or 75 mm DIN rail according to EN 50 023
6) 4 mm Allen screw
Distance to grounded parts at the side 6 mm
Frame size S3
Fig. 3-91: 3RT13 4 with surge suppressor and auxiliary contact block
a = 0 mm with Varistor < 240 V
a = 3.5 mm with Varistor > 240 V
a = 17 mm with RC-element and diode combination
b = DC 13 mm deeper than AC
1) Side-mount auxiliary contact (right or left)
2) Front-mount auxiliary contact block (1-, 2- and 4-pole, also electronically optimized design 3RH19 21-1FE22)
3) Surge suppressor
4) Drilling pattern
5) Attachment to 35 mm DIN rails with 15 mm depth in acc. with EN 50 022 or 75 mm DIN rails in acc. with EN 50 023
6) 4 mm Allen screw
Distance to grounded parts at the side 6 mm
NSB00759c
112
73
10
b)
15 5 3)
1)
80
a
95
110
160
2)
4)
5
45
60
130
5
5
13 134
183
93
146
80
10
a
b)
1)
5)
6)
2)
4)
NSB 00760b
3)
SIEMENS
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-112 A5E40534713002A/RS-AA/001
3RT16 capacitor-switching contactors
Frame size S00
Fig. 3-92: 3RT16 17
Frame size S0
Fig. 3-93: 3RT16 27
Frame size S3
Fig. 3-94: 3RT16 47
5
105
92
51
57.5
83
36
16
45
NSB0_01236b
NSB00761b
18
48
45
ø5
60
72
85
100
5
44
67
121
130
60x130
167
51 90
5
7
8183
18
38
104
124
150
NSB00763a
70
22.5 22.5
116
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-113
3RT1/3RH11 contactors with an extended operating range
Frame size S00
Fig. 3-95: 3RT10 17, 3RH 11
Frame size S0
Fig. 3-96: 3RT10 2
Frame size S2
Fig. 3-97: 3RT10 3
Frame size S3
Fig. 3-98: 3RT10 4
118
5
45
60
28
5
50
35
NSB00764a
NSB00765a
86
47
35 x 60
5148
70 45
NSB00766a
110
47
80
55 5162
45 x 95
145
47
95 70
60 x 130
5186
NSB00767a
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-114 A5E40534713002A/RS-AA/001
3RT10 contactors with electronic control module (extended operating range 0.7 to 1.25 x US)
Frame sizeS0, Cage Clamp connection
Fig. 3-99: 3RT10 2.-3X.40-0LA2
Frame size S0, screw connection
Fig. 3-100: 3RT10 2.-1X.40-0LA2
Frame size S2, Cage Clamp connection
Fig. 3-101: 3RT10 3.-3X.40-0LA2
45
63
119
77
61
7
NSB01384
45
63
116
61
7
44
77
NSB0_01385
NSB01386
87
142
45
64
10
74
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-115
Frame size S2, screw connection
Fig. 3-102: 3RT10 3.-1X.40-0LA2
Frame size S3, Cage Clamp connection
Fig. 3-103: 3RT10 4.-3X.40-0LA2
Frame size S3, screw connection
Fig. 3-104: 3RT10 4.-1X.40-0LA2
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-116 A5E40534713002A/RS-AA/001
3RT19 time-delay auxiliary contact block
Frame size S00 Frame sizes S0 to S3
Fig. 3-105: 3RT19 16-2E.., -2F.., -2G.. 3RT19 26-2E.., -2F.., -2G..
3RT19 time-delay time relay blocks, on-delay
Frame size S00 Frame sizes S0 to S3
Fig. 3-106: 3RT19 16-2 3RT19 26-2
For attachment to the front of the contactor Attachable on the top of the contactor
(dimensions also apply to off-delay time relay blocks) (dimensions also apply to off-delay time relay blocks and
to coupling links (3RH19 24-1GP11)
NSB00254
38
9
5
45
127
143
NSB00772
25
46
533 73
46
38
45
NSB00256
92
105
45
6441
50
66
40
NSB00773
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-117
3RT19 16-4KA soldering pin connection
8.6 8.6 8.6 8.6 5.25.2
45
55
∅ 1.4
50
57.5
67.5
55
A1
A2
8.6 8.6 8.6 8.6
50
45
57.5
18 x ∅ 2.0
67 71.5
15.9
11.6
45
5∅ 1.4
50
67
110
71.5
A1
A2
8.6 8.6 8.6 8.6
50
45
57.5
20 x ∅ 2.0
A1
A2
8.68.68.68.6
45
20 x ∅ 2.0
10.45.2 5.2
55
∅ 1.4
50
57.5
67.5
38.5 33.5
90
8.6 8.6 8.6 8.65.2 8.6 8.6 8.6 8.6 5.2
10.4
3RT1916-4KA1 attached to S00 device
3RT1916-4KA2 attached to S00 device with
front mount auxiliary contact block
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-118 A5E40534713002A/RS-AA/001
3RA13 reversing contactor combinations
Frame size S00
Fig. 3-107: Reversing contactor combinations
Frame size S0
Fig. 3-108: Reversing contactor combination
with mechanical interlock 3RA19 24-2B, side with mechanical interlock 3RA19 24-1A, front
Frame size S2
Fig. 3-109: Reversing contactor combination
Frame size S3
Fig. 3-110: Reversing contactor combination
NSB00774
58.6 90 35 567
67
505
7.5 51
NSB00775
DC95
814
100
10 28
40 5
60
7.5
5
39 61 86
86
NSB00776
90
45 16
44
29
36
NSB00777
13
DC 125
52
5
95
120
36
110
50
10 17.5
10
120 58
NSB00778
12
DC147
157
46 85 134
65
10
12 22
150
5
8
5
130
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-119
Mechanical interlocks for 3RA13 combinations
Frame sizes S0 to S3 Frame sizes S0 to S3
Fig. 3-111: 3RA19 24-2B 3RA19 24-1A
111
122
112
121
10
25 80.555
NC
45
48.5
34
2.5
29 36
16
44
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-120 A5E40534713002A/RS-AA/001
3RA14 contactor combinations for wye-delta starting
Frame sizes S00 - S00 - S00
Fig. 3-112: Contactor combinations for wye-delta starting
Frame sizes S0 - S0 - S0
Fig. 3-113: Contactor combinations for wye-delta starting without mechanical interlock
Frame sizes S2 - S2 - S0
Fig. 3-114: Contactor combinations for wye-delta starting without mechanical interlock (frame sizes S2 - S2 - S0)
K2
K3
K4
(AC+DC)
NSB00779
71
135
143
567
140 (DC)
K1 K3 K2 K4
NSB00780 158
88
130 (AC)
5
K2
K3 K4
K1
NSB00781
10
184 (DC)
7
150
125
140
178
169 (AC)
(2) 3RT1916-4KA1 kits attached to a 3RA131
reversing contactor assembly
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-121
Frame sizes S2 - S2 - S2
Fig. 3-115: Contactor combinations for wye-delta starting
Frame sizes S3 - S3 - S2
Fig. 3-116: Contactor combinations for wye-delta starting without mechanical interlock
K4K2K3K1
NSB00782 198
150
125
140
7
169 (AC)
10
184 (DC)
K1 K3 K2 K4
NSB00783
194 (AC)
150
7
165
180
218
10
207 (DC)
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-122 A5E40534713002A/RS-AA/001
3.7 Technical data
3RT1 Contactor
1) DC-13: attachable auxiliary switch blocks for frame size S00: 6 A
2) With laterally attachable auxiliary switch blocks: switching capacity only up to 500 V
3RT10 contactors for switching motors
Auxiliary circuit
Ratings of the auxiliary contacts acc. to IEC 60 947-5-1/EN 60 947-5-1 (VDE 0660 Part 200)
The data is valid for integrated auxiliary contacts and contacts in the auxiliary switch blocks for contactor sizes S00 to S3
Contactor Frame size S00 to S3
Rated insulation voltage Ui (pollution degree 3)
For laterally mountable 3RH19 21-.EA . . and 3RH19 21-.KA . .
auxiliary switch blocks
V
V
690
max. 500
Conventional thermal current Ith =
rated operational current Ie/AC-12 A10
Load ratings with AC
Rated operational current Ie/AC-15/AC-14
at rated operational voltage Ue24 V
110 V
125 V
220 V
230 V
A
A
A
A
A
6
6
6
6
6
380 V
400 V
500 V
660 V2)
690 V2)
A
A
A
A
A
3
3
2
1
1
Load ratings with DC
Rated operational current Ie/DC-12
at rated operational voltage Ue 24 V
60 V
110 V
125 V
A
A
A
A
10
6
3
2
220 V
440 V
600 V2)
A
A
A
1
0.3
0.15
Rated operational current Ie/DC-13
at rated operational voltage Ue 24 V
60 V
110 V
125 V
A
A
A
A
101)
2
1
0.9
220 V
440 V
600 V2)
A
A
A
0.3
0.14
0.1
Contact reliability at 17 V, 1 mA
acc. to IEC 60 947-5-4 Frequency of contact faults < 10–8
i.e. less than 1 fault per 100 million operating cycles
General data
Contactor Frame size
Typ e
S00
3RT1. 1.
Rated insulation voltage Ui (pollution degree 3) V 690
Rated impulse strengthUimp kV 6
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V400
Permissible ambient temperature For operation
During storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 IP20
Shock resistance Rectangular impulse AC operation g/ms 7/5 and 4.2/10
DC operation g/ms 7/5 and 4.2/10
Sine pulse AC operation g/ms 9.8/5 and 5.9/10
DC operation g/ms 9.8/5 and 5.9/10
Short-circuit protection for contactors without overload relay
Main circuit
Fuse-links, performance class gL/gG
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE
– In acc. with IEC 60 947-4/EN 60 947-4 (VDE 0660 Part 102)
Coordination type "2" 1)
weld-free 2)
Or miniature circuit breaker (up to 230 V) with C characteristic
(Short-circuit current 1 kA, coordination type 1)
A
A
A
A
35
20
10
10
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-123
1) Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1: Coord. type 2
The destruction of the contactor and the overload relay is permissible. The overload relay must not be damaged. Contact welding on the
The contactor and/or overload relay must be replaced, if necessary. contactor is permissible, if it can be easily separated again
2) Testing according to IEC 60 947-4-1
1) Resistance-heated industrial furnaces and electric heating appliances, etc. (increased current consumption at startup of heating taken into account).
2) In acc. with VDE 0660 Part 102, rated value for different startup conditions see Catalog section 4.
3RT1 01 contactors for switching motors
Contactor Frame size
Type S00
3RT1.1.
Auxiliary circuit
Fuse-links, performance class gL/gG A 10
DIAZED type 5SB, NEOZED type 5SE (weld-free fusing at Ik ≥ 1kA)
or miniature circuit breaker (up to 240V) with C characteristic
(Short-circuit current Ik < 400 A) A6
Contactor Frame size
Typ e S00
3RT1.1.
Control
Operating range of the magnet coils AC at 50 Hz: 0.8 to 1.1 x Us
at 60 Hz: 0.85 to 1.1 x Us
DC at +50 °C: 0.8 to 1.1 x Us
at +60 °C: 0.85 to 1.1 x Us
Power input of the magnet coils (with coil in cold state and 1.0 x Us)Standard version For USA and Canada
AC operation Hz 50/60 50 60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
27 /24.3
0.8 /0.75
4.4 /3.4
0.27 /0.27
26.4
0.81
4.7
0.26
31.7
0.77
5.1
0.27
DC operation Making capacity = Holding power W 3.3
Contactor Frame size
Type S00
3RT10 15
S00
3RT10 16
S00
3RT10 17
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ieat 40 °C to 690 V
at 60 °C to 690 V A
A18
16 22
20 22
20
Rated power
of three-phase loads1)
cos ϕ = 0.95 (at 60 °C)
at 230 V
400 V
500 V
690 V
kW
kW
kW
kW
6.3
11
13.8
19
7. 5
13
17
22
7. 5
13
17
22
Minimum conductor cross-section loaded withIeat 40 °C
60 °C
mm2
mm22.5
2.5
2.5
2.5
2.5
2.5
Utilization category AC-2 and AC-3
Rated operational currents Ieto 400 V
500 V
690 V
A
A
A
7
5
4
9
6.5
5.2
12
9
6.3
Rated power of motors
with slip-ring or squirrel-cage rotor at 50 Hz and 60 Hz
230 V kW 2.2 3 3
400 V kW345.5
500 V kW 3.5 4.5 5.5
690 V kW 4 5.5 5.5
Thermal stress 10-s-current2) A 56 72 96
Power loss per conducting path at Ie/AC-3 W 0.42 0.7 1.24
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-124 A5E40534713002A/RS-AA/001
3RT1 01 contactors for switching motors
Contactor Frame size
Type S00
3RT1. 15
S00
3RT1. 16
S00
3RT1. 17
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-4
Rated operational current Ie (at Ia = 6 x Ie) to 400 V A 6.5 8.5 8.5
Rated power of squirrel-cage motors
at 50 Hz and 60 Hz at 400 V kW 3 4 4
for contact service life of approximately 200 000 operating cycles:
Rated operational currents Ie to 400 V
690 V
A
A2.6
1. 8 4.1
3.3 4.1
3.3
at 230 V
400 V
500 V
690 V
kW
kW
kW
kW
0.67
1. 15
1. 4 5
1. 15
1. 1
2
2
2.5
1.1
2
2
2.5
Load ratings with DC
Utilization category DC-1,
switching of resistive loads (L/R ≤ 1 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
15 15 15
15 15 15
1. 5 8 . 4 1 5
20 20 20
20 20 20
2.1 12 20
20 20 20
20 20 20
2.1 12 20
220 V
440 V
600 V
A
A
A
0.6 1.2 15
0.42 1.6 0.9
0.42 0.5 0.7
0.8 1.6 20
0.6 0.8 1.3
0.6 0.7 1
0.8 1.6 20
0.6 0.8 1.3
0.6 0.7 1
Utilization category DC-3 and DC-5,
shunt and series motors (L/R ≤ 15 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
15 15 15
0.35 3.5 15
0.1 0.25 15
20 20 20
0.5 5 20
0.15 0.35 20
20 20 20
0.5 5 20
0.15 0.35 20
220 V
440 V
600 V
A
A
A
––1.2
––0.14
––0.14
––1.5
––0.2
––0.2
––1.5
––0.2
––0.2
Operating frequency
Operating frequency z in operating cycles/hour AC-/DC operation
Contactors without overload relays no-load operating
frequency 1/h 10 000
Dependence of the operating frequency z’
from the operating current I’ and operating voltage U’:
z’ = z ⋅⋅ 1. 5 1/h
Rated operation
according to AC-1
according to AC-2
according to AC-3
according to AC-4
1/h
1/h
1/h
1/h
1 000
750
750
250
Contactors with overload relay (average value) 1/h 15
Ie
I
′
-----
400 V
U
′
-------------
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-125
3RT10 2 contactors for switching motors
1) Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily
separated again from the contactor.
2)Test conditions in acc. with IEC 60 947-4-1.
weld-free 3RT11 contactors, see Chapter 5 (overload and short-circuit protection only with the 3RV10 circuit breaker).
Contactor Frame size
Type S0
3RT10 2.
General data
Rated insulation voltage Ui (pollution degree 3) V 690
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V400
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 front: IP20
terminal space: IP00
Shock resistance Rectangular impulse AC operation g/ms 8.2/5 and 4.9/10
DC operation g/ms 10/5 and 7.5/10
Sine pulse AC operation g/ms 12.5/5 and 7.8/10
DC operation g/ms 15/5 and 10/10
Short-circuit protection for Contactors without
overload relay
Short-circuit protection for contactors with overload relay see chapter 4.
Short-circuit protection for weld-free contactors see chapter 5
(overload - and short-circuit protection only with 3RV10 circuit breaker/
MSP).
Short-circuit protection for fuseless loadfeeders see chapter 5.
Contactor Frame size
Type S0
3RT10 23, 3RT10 24, 3RT10 25
S0
3RT10 26
Main Circuit
Fuse-links, performance class gL/gG
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE
with fuses
– according to IEC 60 947-4/EN 60 947-4
(VDE 0660 part 102) Coord. type 1 1)A63 100
Coord. type 2 1) A 25 35
weld-free2)A10 16
or miniature circuit breaker with C characteristic A 25 32
(Short-circuit current 3 kA, Coord. type 1) 1)
Auxiliary circuit
Fuse-links, performance class gL/gG A 10 10
DIAZED type 5SB, NEOZED type 5SE
(weld-free fusing at Ik ≥ 1kA)
or miniature circuit breaker with C characteristic (Short-circuit current Ik < 400 A) A 10 10
Contactor Frame size
Type S0
3RT10 2.
Control
Operating range of the magnet coils AC/DC 0.8 to 1.1 x Us
Power input of the magnet coils (coil in cold state and at 1.0 x Us) Standard version For USA and Canada
AC operation Hz 50 50/60 50 60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
61
0.82
7. 8
0.24
64 /63
0.72 / 0.74
8.4 / 6.8
0.24 / 0.28
61
0.82
7. 8
0.24
69
0.76
7. 5
0.28
DC operation Making capacity = Holding power W 5.4 5.4 5.4 5.4
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-126 A5E40534713002A/RS-AA/001
3RT10 2 contactors for switching motors
1) Resistance-heated industrial furnaces and electric heating appliances, etc. (increased current consumption at startup of heating taken into account).
2) In acc. with VDE 0660 Part 102, rated value for different startup conditions see Catalog section 4.
Contactor Frame size
Type S0
3RT10 23
S0
3RT10 24
S0
3RT10 25
S0
3RT10 26
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ieat 40 °C to 690 V
at 60 °C to 690 V A
A40
35 40
35 40
35 40
35
Rated power
of three-phase loads1)
cos ϕ = 0.95 (at 60 °C)
at 230 V
400 V
500 V
690 V
kW
kW
kW
kW
13.3
23
29
40
13.3
23
29
40
13.3
23
29
40
13.3
23
29
40
Minimum conductor cross-section loaded with Ieat 40 °C
60 °C
mm2
mm2
10
10
10
10
10
10
10
10
1) Resistance-heated industrial furnaces and electric heating appliances, etc. (increased current consumption at startup of heating taken into account).
Utilization category AC-2 and AC-3
Rated operational currents Ieto 400 V
500 V
690 V
A
A
A
9
6.5
5.2
12
12
9
17
17
13
25
18
13
Rated power of motors
with slip-ring or squirrel-cage rotor at 50 Hz and 60 Hz at 110 V
120 V
127 V
200 V
220 V
kW
kW
kW
kW
kW
1.1
1.1
1.1
2.2
3
1. 5
1. 5
1. 5
3
3
2.2
2.2
2.2
4
4
3
3
3
5.5
5.5
230 V
240 V
380 V
kW
kW
kW
3
3
4
3
3
5.5
4
4
7. 5
5.5
5.5
11
400 V
415 V
440 V
kW
kW
kW
4
4
4
5.5
5.5
5.5
7. 5
7. 5
9
11
11
11
460 V
500 V
575 V
kW
kW
kW
4
4.5
4.5
5.5
7. 5
7. 5
9
10
10
11
11
11
660 V
690 V kW
kW 5.5
5.5 7. 5
7. 5 11
11 11
11
Thermal stress 10-s-current2) A 80 110 150 200
Power loss per conducting path at Ie/AC-3 W 0.4 0.5 0.9 1.6
Utilization category AC-4 (at Ia = 6 x Ie)
(contact service life of approximately 200 000 operation cycles
Rated operational current Ieto 400 V
at 400 V A
kW 8.5
412.5
5.5 15.5
7. 5 15.5
7. 5
Rated operational currents Ieto 400 V
690 V A
A4.1
3.3 5.5
5.5 7. 7
7. 7 9
9
Rated power of squirrel-cage motors
at 50 Hz and 60 Hz at 110 V
230 V kW
kW 0.5
1.1 0.73
1. 5 1
21. 2
2.5
400 V kW 2 2.6 3.5 4.4
500 V kW 2 3.3 4.6 5.6
690 V kW 2.5 4.6 6 7.7
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-127
3RT10 2 contactors for switching motors
Important! The shown current values are good for Delta switching of the contacts.
Load ratings with DC
Contactor Frame size
Type S0
3RT10 23, 3RT10 24
S0
3RT10 25
S0
3RT10 26
Utilization category DC-1,
switching of resistive loads (L/R ≤ 1 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
35 35 35
20 35 35
4.5 35 35
35 35 35
20 35 35
4.5 35 35
35 35 35
20 35 35
4.5 35 35
220 V
440 V
600 V
A
A
A
1535
0.4 1 2.9
0.25 0.8 1.4
1535
0.4 1 2.9
0.25 0.8 1.4
1535
0.4 1 2.9
0.25 0.8 1.4
Utilization category DC-3 and DC-5,
shunt and series motors (L/R ≤ 15 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
20 35 35
53535
2.5 15 35
20 35 35
53535
2.5 15 35
20 35 35
53535
2.5 15 35
220 V
440 V
600 V
A
A
A
1310
0.09 0.27 0.6
0.06 0.16 0.6
1310
0.09 0.27 0.6
0.06 0.16 0.6
1310
0.09 0.27 0.6
0.06 0.16 0.6
Operating frequency
Operating frequency z in operating cycles/hour AC DC AC DC AC DC
Contactors without overload relays no-load operating
frequency 1/h 5000 1500 5000 1500 5000 1500
Dependence of the operating frequency z’
from the operating current and operating voltage U’:
z’ = z ⋅⋅
1.5 1/h
with AC-1
with AC-2
with AC-3
with AC-4
1/h
1/h
1/h
1/h
AC/DC
1000
1000
1000
300
AC/DC
1000
1000
1000
300
AC/DC
1000
750
750
250
Contactors with overload relay (average value) 1/h 15 15 15
Use in stator circuits of slip-ring motors (AC-2)
Stator currents Voltages to 500 V
Rel. OD
20 % 40 A 40 A 54 A
40 % 40 A 40 A 43 A
60 % 38 A 38 A 38 A
80 % 35 A 35 A 35 A
Stator currents Voltages to 690 V
Rel. OD
20 % 26 A 26 A 26 A
40 % 26 A 26 A 26 A
60 % 26 A 26 A 26 A
80 % 26 A 26 A 26 A
Use as rotor contactors of slip-ring motors
Locked rotor voltages at
Starting up to 1380 V
Variable speed up to 690 V
Plugging up to 690 V
Rel. OD
10% 40A 40A 75A
20 % 40 A 40 A 75 A
40 % 40 A 40 A 67 A
60 % 40 A 40 A 60 A
80 % 40 A 40 A 54 A
Loading 100% 40A 40A 54A
Locked rotor voltages at
Starting up to 1500 V
Variable speed up to 750 V
Plugging up to 750 V
Rel. ED
10 % ———
20 % ———
40 % ———
60 % ———
80 % ———
Loading 100 % ———
Ie
I
′
-----
400 V
U
′
-------------
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-128 A5E40534713002A/RS-AA/001
3RT10 3 contactors for switching motors
1) Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily separated again from the contactor.
2) Test conditions in acc. with IEC 60 947-4-1
weld-free 3RT11 contactors, see Chapter 5 (overload and short-circuit protection only with the 3RV10 circuit breaker).
Contactor Frame size
Type S2
3RT10 3.
General data
Mechanical life Basic units
Basic unit with attached auxiliary switch block
Electronically optimized auxiliary switch block
operat-
ing
cycles
10 Mio.
10 Mio.
5 Mio.
Rated insulation voltage Ui (pollution degree 3) V 690
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V400
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 front: IP20
terminal space: IP00
Shock resistance Rectangular impulse AC and DC operation g/ms 10/5 and 5/10
Sine pulse AC and DC operation g/ms 15/5 and 8/10
Contactor Frame size
Type S2
3RT10 34
S2
3RT10 35
S2
3RT10 36
Short-circuit protection for contactors without
overload relay
Short-circuit protection for contactors with overload relay see chapter 4.
Short-circuit protection for weld-free contactors see chapter 5
(overload - and short-circuit protection only by 3RV10 circuit breaker/MSP).
Short-circuit protection for fuseless loadfeeders see chapter 5.
Main Circuit
Fuse-links, performance class gL/gG
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE
– according to IEC 60 947-4/EN 60 947-4
(VDE 0660 part 102) Coord. type 1 1) A 125 125 160
Coord. type 2 1) A 63 63 80
weld-free2) A 16 16 50
Auxiliary circuit
Fuse-links, performance class gL/gG A 10 10 10
DIAZED type 5SB, NEOZED type 5SE
(weld-free fusing at Ik ≥ 1kA)
or miniature circuit breaker with C characteristic
(Short-circuit current Ik < 400 A) A10 10 10
Control
Operating range of the magnet coils AC/DC 0.8 to 1.1 x Us
Power input of the magnet coils (with coil in cold state and at 1.0 x Us) Standard version
AC operation Hz 50 50/60 50 50/60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
104
0.78
9.7
0.42
127 /113
0.73/ 0.69
11.3 / 9.5
0.42/ 0.42
145
0.79
12.5
0.36
170 /155
0.76/ 0.72
15 / 11.8
0.35/ 0.38
For USA and Canada
Hz 50 60 50 60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
108
0.76
9.6
0.42
120
0.7
10.1
0.42
150
0.77
12.5
0.35
166
0.71
12.6
0.37
DC operation Making capacity = Holding power W 13.3 13.3 13.3 13.3
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-129
1) Resistance-heated industrial furnaces and electric heating appliances, etc. (increased current consumption at startup of heating taken into account).
2) In acc. with VDE 0660 Part 102, rated value for different startup conditions see Catalog section 4.
3RT10 3 contactors for switching motors
Contactor Frame size
Type S2
3RT10 34
S2
3RT10 35
S2
3RT10 36
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ieat 40 °C to 690 V
at 60 °C to 690 V A
A50
45 60
55
Rated power
of three-phase loads1)
cos ϕ = 0.95 (at 60 °C)
at 230 V
400 V
500 V
690 V
kW
kW
kW
kW
18
31
39
54
22
38
46
66
Minimum conductor cross-section loaded with Ieat 40 °C
60 °C
mm2
mm2
16
10
16
16
Utilization category AC-2 and AC-3
Rated operational currents Ieto 400 V
500 V
690 V
A
A
A
32
32
20
40
40
24
50
50
24
Rated power of motors
with slip-ring or squirrel-cage rotor at 50 Hz and 60 Hz at 127 V
200 V
220 V
kW
kW
kW
4
7. 5
7. 5
5.5
7. 5
11
7. 5
11
11
230 V
240 V
380 V
kW
kW
kW
7. 5
7. 5
15
11
11
18.5
15
15
22
400 V
415 V
440 V
kW
kW
kW
15
15
18.5
18.5
18.5
18.5
22
22
22
460 V
500 V
575 V
kW
kW
kW
18.5
18.5
18.5
22
22
22
30
30
22
660 V
690 V kW
kW 18.5
18.5 22
22 22
22
Thermal stress 10-s-current2) A 320 400 400
Power loss per conducting path at Ie/AC-3 W 1.8 2.6 5
Utilization category AC-4 (at Ia = 6 x Ie)
Rated operational current Ie
Rated power of squirrel-cage motors
at 50 Hz and 60 Hz
for contact service life of approximately 200 000 operating cycles:
to 400 V
at 400 V A
kW 29
15 35
18.5 41
22
Rated operational currents Ieto 400 V
690 V A
A15.6
15.6 18.5
18.5 24
24
at 230 V kW 4.7 5.4 7.3
400 V
500 V
690 V
kW
kW
kW
8.2
9.8
13
9.5
11.8
15.5
12.6
15.8
21.8
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-130 A5E40534713002A/RS-AA/001
3RT1 03 contactors for switching motors
Important! The shown current values are good for Delta switching of the contacts.
Load ratings with DC
Contactor Frame size
Type S2
3RT10 34
S2
3RT10 35
S2
3RT10 36
Utilization category DC-1,
switching of resistive loads (L/R ≤ 1 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
45 45 45
20 45 45
4.5 45 45
55 55 55
23 45 45
4.5 45 45
50 50 50
23 45 45
4.5 45 45
220 V
440 V
600 V
A
A
A
1 5 45
0.4 1 2.9
0.25 0.8 1.4
1 5 45
0.4 1 2.9
0.25 0.8 1.4
1 5 45
0.4 1 2.9
0.25 0.8 1.4
Utilization category DC-3 and DC-5,
shunt and series motors (L/R ≤ 15 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
35 45 45
64545
2.5 25 45
35 55 55
64555
2.5 25 55
35 50 50
64550
2.5 25 50
220 V
440 V
600 V
A
A
A
1525
0.1 0.27 0.6
0.06 0.16 0.35
1525
0.1 0.27 0.6
0.06 0.16 0.35
1525
0.1 0.27 0.6
0.06 0.16 0.35
Operating frequency
Operating frequency z in operating cycles/hour AC DC AC DC AC DC
Contactors without overload relays no-load operating
frequency 1/h 5000 1500 5000 1500 5000 1500
Dependence of the operating frequency z’
from the operating current I’ and operating voltage U’:
z’ = z ⋅⋅ 1.5 1/h
with AC-1
with AC-2
with AC-3
with AC-4
1/h
1/h
1/h
1/h
AC/DC
1200
750
1000
250
AC/DC
1200
600
1000
300
AC/DC
1000
400
800
300
Contactors with overload relay (average value) 1/h 15 15 15
Use in stator circuits of slip-ring motors (AC-2)
Stator currents Voltages to 500 V
Rel. OD
20 % 69 A 85 A 77 A
40 % 55 A 67 A 61 A
60 % 49 A 60 A 55 A
80 % 45 A 55 A 50 A
Stator currents Voltages to 690 V
Rel. OD
20 % 62 A 80 A 77 A
40 % 55 A 67 A 61 A
60 % 49 A 60 A 55 A
80 % 45 A 55 A 50 A
Use as rotor contactors of slip-ring motors
Locked rotor voltages at
Starting up to 1380 V
Variable speed up to 690 V
Plugging up to 690 V
Rel. OD
10 % 115 A 135 A 150 A
20 % 106 A 131 A 118 A
40 % 86 A 106 A 96 A
60 % 77 A 95 A 86 A
80 % 70 A 86 A 78 A
Loading 100% 70A 86A 78A
Locked rotor voltages at
Starting up to 1500 V
Variable speed up to 750 V
Plugging up to 750 V
Rel. OD
10 % ———
20 % ———
40 % ———
60 % ———
80 % ———
Loading 100 % ———
Ie
I
′
-----
400 V
U
′
-------------
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-131
3RT10 4 contactors for switching motors
1)Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily
separated again from the contactor.
2) Test conditions in acc. with IEC 60 947-4-1.
Contactor Frame size
Type S3
3RT10 4.
General data
Mechanical life Basic units
Basic unit with attached auxiliary switch block
Electronically optimized auxiliary switch block
operat-
ing
cycles
10 Mio.
10 Mio.
5 Mio.
Rated insulation voltage Ui (pollution degree 3) V 1000
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V690
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 front: IP20
terminal space: IP00
Shock resistance Rectangular impulse AC and DC operation g/ms 6.8/5 and 4/10
Sine pulse AC and DC operation g/ms 10.6/5 and 6.2/10
Contactor Frame size
Type S3
3RT10 44
S3
3RT10 45
S3
3RT10 46
Short-circuit protection for contactors without
overload relay
Short-circuit protection for contactors with overload relay see chapter 4.
Short-circuit protection for fuseless load feeders see chapter 5.
Main Circuit
Fuse-links, performance class gL/gG
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE
– according to IEC 60 947-4/EN 60 947-4
(VDE 0660 part 102) Coord. type 1 1) A 250 250 250
Coord. type 2 1) A 125 160 160
weld-free 2)A63 100 100
Auxiliary circuit
Fuse-links, performance class gL/gG A 10 10 10
(weld-free fusing at Ik ≥ 1kA)
DIAZED type 5SB, NEOZED type 5SE
or miniature circuit breaker with C characteristic (Short-circuit current Ik < 400 A) A 10 10 10
Contactor Frame size
Type S3
3RT10 44
S3
3RT10 45
S3
3RT10 46
Control
Operating range of the magnet coils AC/DC 0.8 to 1.1 x Us
Power input of the magnet coils (with coil in cold state and at 1.0 x Us) Standard version
AC operation Hz 50 50/60 50 50/60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
218
0.61
21
0.26
247 /211
0.62/ 0.57
25 / 18
0.27/ 0.3
270
0.68
22
0.27
298 /274
0.7/ 0.62
27 / 20
0.29/ 0.31
For USA and Canada
Hz 50 60 50 60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
218
0.61
21
0.26
232
0.55
20
0.28
270
0.68
22
0.27
300
0.52
21
0.29
DC operation Making capacity = Holding power W 15 15
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-132 A5E40534713002A/RS-AA/001
3RT10 4 Contactors for switching motors
1) Resistance-heated industrial furnaces and electric heating appliances, etc. (increased current consumption at startup of heating taken into account).
2) In acc. with VDE 0660 Part 102, rated value for different startup conditions see Catalog section 4
Contactor Frame size
Type S3
3RT10 44
S3
3RT10 45
S3
3RT10 46
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ieat 40 °C to 690 V
1000 V
at 60 °C to 690 V
1000 V
A
A
A
A
100
50
90
40
120
60
100
50
120
70
100
60
Rated power
of three-phase loads 1)
cos ϕ = 0.95 (at 60 °C)
at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
34
59
74
102
66
38
66
82
114
82
38
66
82
114
98
Minimum conductor cross-section loaded with Ieat 40 °C
60 °C
mm2
mm2
35
35
50
35
50
35
Utilization category AC-2 and AC-3
Rated operational currents Ieto 400 V
500 V
690 V
1000 V
A
A
A
A
65
65
47
25
80
80
58
30
95
95
58
30
Rated power of motors
with slip-ring or squirrel-cage rotor at 50 Hz and 60 Hz at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
18.5
30
37
55
30
22
37
45
55
37
22
45
55
55
37
Thermal stress 10-s-current2)A 600 760 760
Power loss per conducting path with Ie/AC-3 W 4.6 7.7 10.8
Utilization category AC-4 at (Ia = 6 x Ie)
Rated operational current Ieto 400 V A 55 66 80
Rated power of squirrel-cage motors
at 50 Hz and 60 Hz at 400 VkW303745
for contact service life of approximately 200 000 operating cycles:
Rated operational currents Ie to 400 V
690 V
1000 V
A
A
A
28
28
20
34
34
23
42
42
23
Rated power of squirrel-cage motors
at 50 Hz and 60 Hz at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
8.7
15.1
18.4
25.4
22
10.4
17.9
22.4
30.9
30
12
22
27
38
30
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-133
3RT10 4 contactors for switching motors
Important! The shown current values are good for Delta switching of the contacts.
Contactor Frame size
Type S3
3RT10 44
S3
3RT10 45
S3
3RT10 46
Load ratings with DC
Utilization category DC-1,
switching of resistive loads (L/R ≤ 1 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
90 90 90
23 90 90
4.5 90 90
100 100 100
60 100 100
9 100 100
100 100 100
60 100 100
9 100 100
220 V
440 V
600 V
A
A
A
1 5 70
0.4 1 2.9
0.26 0.8 1.4
2 10 80
0.6 1.8 1.8
0.4 1 1
2 10 80
0.6 1.8 4.5
0.4 1 2.6
Utilization category DC-3 and DC-5,
shunt and series motors (L/R ≤ 15 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
to 24 V
60 V
110 V
A
A
A
40 90 90
6 90 90
2.5 90 90
40 100 100
6.5 100 100
2.5 100 100
40 100 100
6.5 100 100
2.5 100 100
220 V
440 V
600 V
A
A
A
1735
0.15 0.42 0.8
0.06 0.16 0.35
1 7 35
0.15 0.42 0.8
0.06 0.16 0.35
1 7 35
0.15 0.42 0.8
0.06 0.16 0.35
Operating frequency
Operating frequency z in operating cycles/hour AC DC AC DC AC DC
Contactors without overload relays no-load operating
frequency 1/h 5000 1000 5000 1000 5000 1000
Dependence of the operating frequency z’
from the operating current I’ and operating voltage U’:
z’ = z ⋅⋅ 1. 5 1/h
with AC-1
with AC-2
with AC-3
with AC-4
1/h
1/h
1/h
1/h
AC/DC
1000
400
1000
300
AC/DC
900
400
1000
300
AC/DC
900
350
850
250
Contactors with overload relay (average value) 1/h 15 15 15
Use in stator circuits of slip-ring motors (AC-2)
Stator currents Voltages to 500 V
Rel. OD
20 % 139 A 154 A 154 A
40 % 110 A 122 A 122 A
60% 98A 109A 109A
80% 90A 100A 100A
Stator currents Voltages to 690 V
Rel. ED
20 % 115 A 137 A 137 A
40 % 110 A 122 A 122 A
60% 98A 109A 109A
80% 90A 100A 100A
Use as rotor contactors of slip-ring motors
Locked rotor voltages at
Starting up to 1380 V
Variable speed up to 690 V
Plugging up to 690 V
Rel. OD
10 % 235 A 312 A 312 A
20 % 213 A 237 A 237 A
40 % 172 A 192 A 192 A
60 % 154 A 172 A 172 A
80 % 140 A 156 A 156 A
Loading 100 % 140 A 156 A 156 A
Locked rotor voltages at
Starting up to 1500 V
Variable speed up to 750 V
Plugging up to 750 V
Rel. OD
10 % 235 A 312 A 312 A
20 % 213 A 237 A 237 A
40 % 172 A 192 A 192 A
60 % 154 A 172 A 172 A
80 % 140 A 156 A 156 A
Loading 100 % 140 A 156 A 156 A
Ie
I
′
-----
400 V
U
′
-------------
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-134 A5E40534713002A/RS-AA/001
3RT14 contactors 3-pole
1)Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily separated again from the contactor.
Contactor Frame size
Typ e S3
3RT14 46
General data
Mechanical life Operating
cycles 10 Mio.
Service life
Utilization category AC-1 at Ie
Operating
cycles 0.5 Mio.
Rated insulation voltage Ui (pollution degree 3) V 1000
Rated impulse strength Uimp kV 6
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V 690
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 front: IP20
terminal space: IP00
Shock resistance
Rectangular impulse at AC and DC operation g/ms 6.8/5 and 4/10
Sine pulse at AC and DC operation g/ms 10.6/5 and 6.2/10
Short-circuit protection for contactors without overload relay
Main Circuit
Fuse-links, performance class gL/gG
NH, type 3NA Coord. type 1 1)A250
Fuse-links, performance class gR
SITOR, type 3NE Coord. type 2 1)A250
Auxiliary circuit
Fuse-links, performance class gL/gG (weld-free fusing at Ik ≥ 1kA)
DIAZED type 5SB, NEOZED type 5SE A
A10
10
Without miniature circuit breaker with C characteristic
(Ik < 400 A) A10
Control
Operating range of the magnet coils AC/DC 0.8 to 1.1 x Us
Power input of the magnet coils (with coil in cold state and 1.0 x Us)Standard version For USA and Canada
AC operation Hz 50 50/60 50 60
Making capacity
cos ϕ
Holding power
cos ϕ
VA
VA
270
0.68
22
0.27
298 /274
0.7 / 0.62
27 / 20
0.29 / 0.31
270
0.68
22
0.27
300
0.52
21
0.29
DC operation Making capacity = Holding power W 15 15 15 15
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-135
3RT14 contactors 3-pole
Contactor Frame size
Type S3
3RT14 46
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ieat 40 °C to 690 V
at 60 °C to 690 V
at 1000 V
A
A
A
140
130
60
Rated power
of three-phase loads
cos ϕ = 0.95 (at 60 °C)
at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
50
86
107
148
98
Minimum conductor cross-section loaded with Ieat 40 °C
at 60 °C
mm2
mm2
50
50
Utilization category AC-2 and AC-3
at a service life of 1.3 Mio. operating cycles
Rated operational current Ieto 690 V A 44
Rated power of motors
with slip-ring or squirrel-cage rotor
at 50 Hz and 60 Hz (at 60 °C)
at 230 V
400 V
500 V
690 V
kW
kW
kW
kW
12.7
22
29.9
38.2
Power loss per conducting path at Ie/AC-1 W 12.5
Load ratings with DC
Utilization category DC-1, switching of resistive loads L/R ≤ 1 ms)
Number of conducting paths in series connection 1 2 3
Rated operational currents Ie (at 60 °C) to 24 V
60 V
110 V
A
A
A
130
80
12
130
130
130
130
130
130
220 V
440 V
600 V
A
A
A
2.5
0.8
0.48
13
2.4
1.3
130
6
3.4
Utilization category DC-3 and DC-5, shunt and series motors
Number of conducting paths in series connection 1 2 3
Rated operational currents Ie (at 60 °C) to 24 V
60 V
110 V
A
A
A
6
3
1. 2 5
130
130
130
130
130
130
220 V
440 V
600 V
A
A
A
0.35
0.15
0.1
1.75
0.42
0.27
4
0.8
0.45
Operating frequency
Operating frequency z in operating cycles/hour AC operation DC operation
Contactors without overload relay no-load operating
frequency 1/h 5000 1000
Rated operation according to AC-1
according to AC-3 1/h
1/h 650
1000 650
1000
Dependence of the operating frequency z’
from the operating current I’ and operating voltage U’:
z’ = z ⋅⋅ 1. 5 1/h
Ie
I
′
-----
400V
U
′
--------------
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-136 A5E40534713002A/RS-AA/001
3RT13 contactors 4-pole (4 NO) for switching of resistive loads
1)Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily separated again from the contactor.
2) Test conditions in acc. with IEC 60 947-4-1.
Contactor Frame size
Type S00
3RT13 16/17
S0
3RT13 25/26
S2
3RT13 36
S3
3RT13 44
S3
3RT13 46
General data
Mechanical life Operating
cycles 30 Mio. 10 Mio.
Service life at Ie/AC-1 Operating
cycles ca. 0.5 Mio.
Rated insulation voltage Ui (pollution degree 3) V 690
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and
DIN 40 050 front: IP20
terminal space:
IP20
front: IP20
terminal space:
IP00
Short-circuit of contactors without overload relays
Main Circuit
Fuse-links, performance class gL/gG
NH type 3NA,
DIAZED type 5SB,
NEOZED type 5SE
– according to IEC 60 947-4/
EN 60 947-4 (VDE 0660 part 102) Coord. type 1 1) A 35 63 160 250 250
Coord. type 2 1) A 20 25/35 63 125 160
weld-free 2) A 10 16 50 63 100
Contactor Frame size
Type S00
3RT13 16/17
S0
3RT13 25/26
S2
3RT13 36
S3
3RT13 44
S3
3RT13 46
Control
Operating range of the magnet coils AC at 50
Hz: 0.8 - 1.1 x UsAC/DC: 0.8 - 1.1 x Us
at 60
Hz: 0.85 - 1.1 x Us
DC at
+50 °
C:
0.8 - 1.1 x Us
at
+60 °
C:
0.85 - 1.1 x Us
Power input of the magnet coils (coil in cold state and at 1.0 x Us)
AC operation Hz
50/60 50 50/60 50 50/60 50 50/60
Making capacity
cos ϕ
VA
26.5/24.3
0.79/0.75
61
0.82
64/63
0.82
0.74
145
0.79
170/155
0.76/0.72 270
0.68
298/274
0.72/0.62
Holding power
cos ϕ
VA
4.4/3.4
0.27/0.27
7. 8
0.24
8.4/
6.8
0.24/0.28
12.5
0.36
15/11.8
0.35/0.38
22
0.27
27/ 20
0.29/0.31
DC operation Making capacity = Holding power W 3.3 5.6 13.3 15
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-137
3RT13 contactors 4-pole (4 NO) for switching of resistive loads
Contactor Frame size
Typ e S00
3RT13 16
S00
3RT13 17
S0
3RT13 25
S0
3RT13 26
S2
3RT13 36
S3
3RT13 44
S3
3RT13 46
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ie (at 40 °C)
(at 60 °C) to 690 V
to 690 V A
A18
16 22
20 35
30 40
35 60
55 110
100 140
120
Rated power of three-phase loads
cos ϕ = 0.95 (at 40 °C) at 230 V
400 V kW
kW 7
12 8.5
14.5 12.5
22 15
26 23
39 42
72 53
92
Minimum conductor cross-section loaded with Ieat 40 °C
and 60 °C mm22.5 2.5 10 10 16 50 50
Utilization category AC-2 and AC-3
Rated operational currents Ie (at 60 °C) at 400 V A 9 12 17 25 26
Rated power of slip-ring or
squirrel-cage motors at 50 Hz and 60 Hz at 230 V
400 V kW
kW 3
43
5.5 4
7. 5 5.5
11 5.5
11
Contactor Frame size
Typ e S00
3RT13 16
S00
3RT13 17
S0
3RT13 25/26
Load ratings with DC
Utilization category DC-1, switching of resistive loads (L/R ≤ 1 ms)
Rated operational currents Ie (at 40 °C)
Number of conducting paths in series connection
1 2 3 4 1 2 3 4 1 2 3 4
to 24 V
60 V
110 V
220 V
440 V
A
A
A
A
A
18 18 18 18
18 18 18 18
2.1 12 18 18
0.8 1.6 18 18
0.6 0.8 1.3 1.3
22 22 22 22
22 22 22 22
2.1 12 22 22
0.8 1.6 22 22
0.6 0.8 1.3 1.3
35 35 35 35
20 35 35 35
4.5 35 35 35
1 5 35 35
0.4 1 2.9 2.9
Utilization category DC-3 and DC-5
shunt and series motors (L/R ≤ 15 ms)
Rated operational currents Ie (at 40 °C)
Number of conducting paths in series connection
1 2 3 4 1 2 3 4 1 2 3 4
to 24 V
60 V
110 V
220 V
440 V
A
A
A
A
A
18 18 18 18
0.5 5 18 18
0.15 0.35 18 18
——
1.5 1.5
——
0.2 0.2
20 20 20 20
0.5 5 20 20
0.15 0.35 20 20
——
1.5 1.5
——
0.2 0.2
20 35 35 35
5 35 35 35
2.5 15 35 35
1 3 10 35
0.09 0.27 0.6 0.6
Contactor Frame size
Typ e S2
3RT13 36
S3
3RT13 44
S3
3RT13 46
Load ratings with DC
Utilization category DC-1, switching of resistive loads (L/R ≤ 1 ms)
Rated operational currents Ie (at 40 °C)
Number of conducting paths in series connection
1234 1234 1234
to 24 V
60 V
110 V
220 V
440 V
A
A
A
A
A
50 50 50 50
23 45 45 45
4.5 45 45 45
154545
0.4 1 2.9 2.9
70 70 70 70
23 70 70 70
4.5 70 70 70
1 5 70 70
0.41 2.92.9
80 80 80 80
60 80 80 80
9808080
2108080
0.6 1.8 4.5 4.5
Utilization category DC-3 and DC-5
shunt and series motors (L/R ≤ 15 ms)
Rated operational currents Ie (at 40 °C)
Number of conducting paths in series connection
1234 1234 1234
to 24 V
60 V
110 V
220 V
440 V
A
A
A
A
A
20 45 45 45
6454545
2.5 25 45 45
152545
0.1 0.27 0.6 0.6
20 70 70 70
6707070
2.5 70 70 70
1 7 35 70
0.15 0.42 0.8 0.8
20 80 80 80
6.5808080
2.5808080
173580
0.15 0.42 0.8 0.8
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-138 A5E40534713002A/RS-AA/001
3RT15 contactors 4-pole (2 NO + 2 NC main contacts)
1) Corresponds to section from IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily separated again from the contactor.
2) Test conditions in acc. with IEC 60 947-4-1.
Contactor Frame size
Typ e S00
3RT15 16/17
S0
3RT15 26
S0
3RT15 26
S2
3RT15 35
S2
3RT15 35
General data
Mechanical life Operating
cycles 30 Mio. 10 Mio. 10 Mio. 10 Mio. 10 Mio.
Service life at Ie/AC-1 Operating
cycles ca. 0.5 Mio.
Rated insulation voltage Ui (pollution degree 3) V 690
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–55 to +80
Degree of protection in acc. with IEC 60 947-1 and DIN 40 050 front: IP20
terminal space:
IP20
front: IP20
terminal
space: IP00
Short-circuit protection for contactors without overload relay
Main Circuit
Fuse-links, performance class gL/gG
NH type 3NA,
DIAZED type 5SB,
NEOZED type 5SE
– according to IEC 60 947-4/
EN 60 947-4 (VDE 0660 part 102)
Coord. type 1 1)
Coord. type 2 1)
weld-free 2)
A
A
A
35
20
10
63
35
16
63
35
16
160
80
50
160
80
50
Contactor Frame size
Typ e S00
3RT15 16/17
S0
3RT15 26
S0
3RT15 26
S2
3RT15 35
S2
3RT15 35
Control
Operating range of the magnet coils AC
DC
at 50 Hz:
at 60 Hz:
at +50 °C
at +60 °C
0.8 to 1.1 x Us
0.85 to 1.1 x Us
0.8 to 1.1 x Us
0.85 to 1.1 x Us
AC/DC: 0.8
to 1.1 x Us
AC/DC: 0.8
to 1.1 x Us
Power input of the magnet coils (coil in cold state and at 1.0 x Us)
AC operation Hz 50/60 50 50/60 50 50/60
Making capacity
cos ϕ
VA 26.5/24.3
0.79/ 0.75 61
0.82 64/63
0.82/0.74 145
0.79 170/155
0.76/0.72
Holding power
cos ϕ
VA 4.4/ 3.4
0.27/0.27 7. 8
0.24 8.4/6.8
0.24/0.28 12.5
0.36 15/11.8
0.35/0.38
DC operation Making capacity = Holding power W 3.3 5.6 5.6 13.3 13.3
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-139
1) with AC-coil: 25 A
DC-coil: 20 A.
2) For Us > 24 V the rated operational currents Ie for the NC contact conducting paths are 50 % of the values for the NO contact conducting paths.
3RT15 contactors 4-pole (2 NO + 2 NC main contacts)
Contactor Frame size
Type S00
3RT15 16
S00
3RT15 17
S0
3RT15 26
S2
3RT15 35
Main Circuit
Current carrying capacity with alternating current
Utilization category AC-1, switching of resistive loads
Rated operational currents Ie (at 40 °C)
(at 60 °C) to 690 V
to 690 V A
A18
16 22
20 40
35 55
50
Rated power of three-phase loads
cos ϕ = 0.95 (at 40 °C) at 230 V
400 V
kW
kW
6.5
11
7. 5
13
15
26
20
36
Minimum conductor cross-section loaded with Ieat 40 °C
and 60 °C mm22.5 2.5 10 16
Utilization category AC-2 and AC-3
Rated operational currents Ie (at 60 °C) to 400 V A 9 12 25 1)40
Rated operation for motors
with slip-ring or squirrel-cage rotor at 50 Hz and 60 Hz and at 230 V
400 V
kW
kW
3
4
3
5.5
5.5
11
9.5
18.5
Load ratings with DC
Utilization category DC-1,
switching of resistive loads (L/R ≤ 1 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 1 2 1 2 1 2
to 24 V
60 V
110 V
A
A
A
16 16
16 16
2.1 12
20 20
20 20
2.1 12
35 35
20 35
4.5 35
50 50
23 45
4.5 45
220 V
440 V A
A0.8 1.6
0.6 0.8 0.8 1.6
0.6 0.8 15
0.4 1 1 5
0.4 1
Utilization category DC-3 and DC-5 2),
shunt and series motors (L/R ≤ 15 ms)
Rated operational current Ie (at 60 °C)
Number of conducting paths in series connection 1 2 1 2 1 2 1 2
to 24 V
60 V
110 V
A
A
A
16 16
0.5 5
0.15 0.35
20 20
0.5 5
0.15 0.35
20 35
5 35
2.5 15
35 50
6 45
2.5 25
220 V
440 V A
A0.75 1.5
——
0.75 1.5
——
13
0.09 0.27 15
0.1 0.27
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-140 A5E40534713002A/RS-AA/001
3RT16 capacitor-switching contactors
3RT10 contactors with electronic control module
All data not shown corresponds to the standard contactors.
3RT10 coupling relays (Interface)
The technical specifications for frame size S0 correspond, unless listed below, to those of the 3RT10 26 contactors,
for frame size 2 to those of the 3RT10 36 contactors, and for frame size S3 to those of the 3RT10 45 contactors.
Contactor Frame size
Typ e S00
3RT16 17
S0
3RT16 27
S3
3RT16 47
Capacitor power at
operating voltage
(Utilization category AC-6b)
230 V 50/60 Hz
400 V 50/60 Hz
525 V 50/60 Hz
690 V 50/60 Hz
kvar
kvar
kvar
kvar
3.0 to 7.5
5.0 to 12.5
7.5 to 15
10.0 to 21
3.5 to 15
6.0 to 25
7.8 to 30
10.0 to 42
3.5 to 30
5.0 to 50
7.5 to 60
10.0 to 84
Auxiliary contacts attached (freely available) 1 NO + 1 NC 1 NO
Additional auxiliary contacts that can be attached (lateral) —
Operating range of the magnet coil 0.8 to 1.1 x Us0.85 to 1.1 x Us
Max. operating frequency 1/h 180 100
Service life Operat-
ing
cycles
> 150 000 > 100 000
Ambient temperature °C 60 60
Regulations IEC 60 947/EN 60 947 (VDE 0660)
Short-circuit protection 1.6 to 2.2 x Ie
Contactor S0
3RT10 2.
S2
3RT10 3.
S3
3RT10 4.
Magnetic coil operational range 0.7 to 1.25 x US
P
ower input of the magnet coils
with coil in cold state and 1.0
x US
Making capacity = Holding power
W61519
Upright mounting on request
The technical specifications correspond to those of the 3RT10 contactors used to switch motors, unless listed below.
Auxiliary switch blocks cannot be added to 3RT10 1. coupling relays.
Two, 1-pole auxiliary switch blocks can be built on to the 3RT10 2. coupling relays.
Contactor Frame size
Typ e S00
3RT10 1.-1HB4.
S00
3RT10 1.-1JB4.
S00
3RT10 1.-1KB4.
S0
3RT10 2.-1KB40
Mechanical life Operat-
ing
cycles
30 Mio. 30 Mio. 30 Mio. 10 Mio.
Operating range of the magnet coils 0.7 to 1.25 x Us (17 V to 30 V)
Operating range of the magnet coil
(with coil in cold state) at Us 17 V W 1.2 1.2 1.2 2.1
24 V W 2.3 2.3 2.3 4.2
Making capacity = Holding power 30 V W 3.6 3.6 3.6 6.6
Permissible residual current
of the electronic components
(at 0 signal) mA < 10 mA x < 10 mA x < 10 mA x < 6 mA x
Suppressor circuit of the magnet coil without surge
suppression with Diode with Varistor with Varistor
Operating time of the coupling relays
Making at 17 V On delay NO
Off delay NC ms
ms 40 to 120
30 to 70 40 to 120
30 to 70 40 to 120
30 to 70 93 to 270
83 to 250
at 24 V On delay NO
Off delay NC ms
ms 30 to 60
20 to 40 30 to 60
20 to 40 30 to 60
20 to 40 64 to 87
55 to 78
at 30 V On delay NO
Off delay NC ms
ms 20 to 50
15 to 30 20 to 50
15 to 30 20 to 50
15 to 30 53 to 64
45 to 56
Breaking at 17 V to 30 V On delay NO
Off delay NC ms
ms 7 to 17
22 to 30 40 to 60
60 to 70 7 to 17
22 to 30 18 to 19
24 to 25
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89]) V 400 400 400 400
24 V
Us
------------
24 V
Us
------------
24 V
Us
------------
24 V
Us
------------
U
U
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-141
Operating time of the coupling relays - Catalog data (1.4 W)
The technical specifications correspond to those of the 3RT10 contactors used to switch motors, unless listed below.
Auxiliary switch blocks cannot be added to 3RT10 1. contactor relays.
Operating range of the magnet coils 1.4 W at 24 V.
Contactor Frame size
Type S00
3RT10 1.-1MB4.-
0KT0
S00
3RT10 1.-1VB4.
S00
3RT10 1.-1WB4.
Mechanical life Operat-
ing
cycles
30 Mio. 30 Mio. 30 Mio.
Operating range of the magnet coils 0.85 to 1.85 x Us
Power input of the magnet coils
(with coil in cold state) at Us 24 V W 1.4 1.4 1.4
Making capacity = Holding power
Suppressor circuit of the magnet coil without surge
suppression with Diode with Varistor
Safe isolation between coil and main contacts
(acc. to DIN VDE 0106 Part 101 and A1 [draft 2/89])
Permissible residual current
of the electronic components
(at 0 signal)
on request
UC [V] 3RT1015-1MB42-0KT0
without protective
element
from to
3RT1015-1MB42-0KT0
Diode
from to
3RT1015-1MB42-0KT0
Varistor
from to
Making at 20.5 V Pull-in NO ms 40 130
Drop-out NC ms 40 125
at 24 V Pull-in NO ms 40 100
Drop-out NC ms 30 90
at 44 V Pull-in NO ms 20 30
Drop-out NC ms 15 25
Breaking
at 20.5 to
44 V Pull-in NO ms 9 12 45 65 10 15
Drop-out NC ms 12 16 52 72 15 20
U
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-142 A5E40534713002A/RS-AA/001
Accessories for 3RT1. contactors
Solid-state time relay blocks
with semiconductor output
Time-delayed auxiliary switch
blocks
3RT19 .6- 2C
2D
3RT19 .6- 2E
2F
2G
Rated insulation voltage AC V 250 250
Pollution degree 3
Overvoltage category III in acc. with DIN VDE 0110
Energizing operating range 0.8 to 1.1 x Us0.85 to 1.1 x Us
0.95 to 1.05 times the
rated frequency 0.95 to 1.05 times the
rated frequency
Rated power W
VA
1
1
2
4Power input at 230 V AC, 50 Hz
Rated operational currents Ie
AC-140, DC-13
AC-15 at 230 V AC, 50 Hz
DC-13 at 24 V
DC-13 at 110 V
DC-13 at 230 V
A
A
A
A
A
0.3 at 3RT19 16
0.5 at 3RT19 26
—
—
—
—
—
—
3
1
0.2
0.1
DIAZED fusing
Performance class gL/gG A — 4
Operating frequency
Loaded with Ie 230 V AC
Loaded with 3RT10 16 contactor, 230 V AC
1/h
1/h
2500
2500
2500
5000
Recovery time ms 50 150
Minimum on-time ms 35 200 (off delay)
Residual current mA ≤ 5—
Voltage drop
in switched state
V≤ 3.5 —
Short-term current carrying capacity A 10 (to 10 ms) —
Setting accuracy
in relation to the value at the end of the scale ≤ ± 15 % ≤ ± 15 %
Repeatability ≤ ± 1 % ≤ ± 1 %
Mechanical life Operating cycles 100 x 10630 x 106
Permissible ambient temperature for operation
in storage °C
°C –25 to +60
–40 to +85 –25 to +60
–40 to +85
Degree of protection
in acc. with EN 60 529 IP20 terminals IP20 terminals
Te rm i n a l t y p e Single-core mm22 x (0.5 to 1.5)
2 x (0.75 to 4) 2 x (0.5 to 1.5)
2 x (0.75 to 4)
Finely stranded with wire end ferrule: mm22 x (0.5 to 2.5) 2 x (0.5 to 2.5)
Single or multi-core AWG 2 x (18 to 14) 2 x (18 to 14)
Terminal screw M3 M3
Tightening torque Nm 0.8 to 1.2 0.8 to 1.2
Permissible installation any any
Shock resistance
Half sine according to IEC 60 068-2-27 g/ms 15/11 15/11
Vibration performance
according to IEC 60 068-2-6 Hz/mm 10 to 55/0.35 10 to 55/0.35
EMC-Testing EN 50081-1; IEC 61 000-6-2 EN 50081-1; IEC 61 000-6-2
Overvoltage protection Varistor integrated in timing relay —
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 3-143
3RA13 reversing contactor combinations
The technical information corresponds to that of the 3RT10 ... contactors.
The s and u approvals only apply to complete contactor combinations and not to combinations you have put together from separate parts.
3RA14 combinations for wye-delta starting
The technical specifications correspond to those of the 3RT individual contactor and the 3RU time relay, unless listed below.
Starter Frame sizes S . . - S . . - S . .
Type 3RA . . . .
00-00-00
14 15
00-00-00
14 16
0-0-0
14 23
0-0-0
14 25
2-2-0
14 34
2-2-2
14 35
2-2-2
14 36
3-3-2
14 44
3-3-2
14 45
Mechanical life Operating
cycles 3 Mio.
Short-circuit protection without overload
relay
Short-circuit protection with overload relay see section 4.
Maximum rated current of the fuse
Main Circuit1)
Fuse-links, performance class gL/gG
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE
Single or double infeed
–according to IEC 60 947-4-1/
DIN VDE 0660 part 102 Coord. type 1 1)
Coord. type 2 1)A
A35
20 35
20 63
25 100
35 125
63 125
63 160
80 250
125 250
160
Control circuit
Fuse-links, performance class gL/gG
DIAZED type 5SB, NEOZED type 5SE
(Short-circuit current Ik ≥ 1kA)
A
A
10,
62), if the auxiliary contact of the overload relay is in the circuit of the contactor coil.
Miniature circuit breaker with C characteristic A
A
10,
62), if the auxiliary contact of the overload relay is in the circuit of the contactor coil
Size of the individual
contactors
Line contactor
Delta contactor
Wye contactor
K1
K3
K2
type 3RT
type 3RT
type 3RT
10 15
10 15
10 15
10 17
10 17
10 15
10 24
10 24
10 24
10 26
10 26
10 24
10 34
10 34
10 26
10 35
10 35
10 34
10 36
10 36
10 34
10 44
10 44
10 35
10 45
10 45
10 36
Unassigned auxiliary
contacts of the individual
contactors
see circuit diagrams of the control circuit on page 3/93.
Load ratings utilization category AC-3
Switch-over time up to 10 s
Rated operational current at 400 V
500 V
690 V
A
A
A
12
8.7
6.9
17
11.3
9
25
20.8
20.8
40
31.2
22.5
65
55.4
53.7
80
69.3
69.3
86
86
69.3
115
112.6
98.7
150
138.6
138.6
Rated power
of three phase motors
at 50 Hz and
at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
3.3
5.8
5.3
5.8
—
4.7
8.2
6.9
7. 5
—
7. 2
12.5
13
18
—
12
21
20.5
20.4
—
20.4
35
38
51
—
25.5
44
48
66
—
27.8
48
60
67
—
37
65
80
97
—
49
85
98
136
—
Operating frequency with overload relay 1/h 15 15 15 15 15 15 15 15 15
Load ratings utilization category AC-3
Switch-over time up to 15 s
Rated operational current at 400 V
500 V
690 V
A
A
A
12
8.7
6.9
17
11.3
9
25
20.8
20.8
31
31
22.5
44
44
44
57
57
57
67
67
67
97
97
97
106
106
106
Rated power
of three phase motors
at 50 Hz and
at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
3.3
5.8
5.3
5.8
—
4.7
8.2
6.9
7. 5
—
7. 2
12.5
13
18
—
9.4
16.3
20.4
20.4
—
13.8
24
30
42
—
18.2
31.6
40
55
—
21.6
38
47
65
—
32
55
69
95
—
35
60
75
104
—
Operating frequency with overload relay 1/h 15 15 15 15 15 15 15 15 15
3RT1 Contactors/3RH1 Control relays
SIRIUS System Manual
3-144 A5E40534713002A/RS-AA/001
1) Corresponds to IEC 60 947-4 (VDE 0660 Part 102):
Coord. type 1:
The destruction of the contactor and the overload relay is permissible. The contactor and/or overload relay must be replaced, if necessary.
Coord. type 2:
The overload relay must not be damaged. Contact welding on the contactor is permissible, if it can be easily separated again from the contactor.
2)to Ik ≤ 0.5 kA; ≤ 260 V.
3RA14 combinations for wye-delta starting
Starter Frame sizes S.. - S.. - S..
Type 3RA . . . .
00-00-00
14 15
00-00-00
14 16
0-0-0
14 23
0-0-0
14 25
2-2-0
14 34
2-2-2
14 35
2-2-2
14 36
3-3-2
14 44
3-3-2
14 45
Load ratings utilization category AC-3
Switch-over time up to 20 s
Rated operational current at 400 V
500 V
690 V
A
A
A
12
8.7
6.9
17
11.3
9
25
20.8
20.8
28
28
22.5
39
39
39
51
51
51
57
57
57
85
85
85
92
92
92
Rated power
of three phase motors
at 50 Hz and
at 230 V
400 V
500 V
690 V
1000 V
kW
kW
kW
kW
kW
3.3
5.8
5.3
5.8
—
4.7
8.2
6.9
7. 5
—
7. 2
12.5
13
18
—
8.5
14.7
18.4
20.4
—
12.2
21.3
26.7
37
—
16.3
28
35
49
—
18.4
32
40
55
—
28
48
60
83
—
30
52
65
90
—
Operating frequency with overload relay 1/h 15 15 15 15 15 15 15 15 15
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-1
4
3RU11, 3RB10, 3RB12 Overload relays
Section Subject Page
4.1 Specifications/regulations/approvals 4-2
4.2 Device description 4-4
4.2.1 Overview 4-4
4.2.2 Detailed device description 4-5
4.3 Application and use 4-10
4.3.1 Overload relay in the motor circuit 4-10
4.3.2 3RU11 thermal overload relays and 3RB10 electronic
overload relays
4-15
4.3.3 3RB12 electronic overload relays 4-22
4.4 Accessories 4-30
4.4.1 Electrical remote RESET 4-30
4.4.2 Mechanical thru-the-door reset 4-31
4.4.3 Other accessories 4-33
4.5 Mounting and connection 4-34
4.5.1 Mounting 4-34
4.5.2 Connection 4-41
4.5.3 Circuit diagrams 4-43
4.6 Dimensional drawings (dimensions in mm) 4-46
4.7 Technical Data 4-49
4.7.1 3RU11 thermal overload relays 4-49
4.7.2 3RB10 electronic overload relays 4-54
4.7.3 3RB12 electronic overload relays 4-61
4.7.4 Terminal bracket for stand-alone installation 4-66
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-2 A5E40534713002A/RS-AA/001
4.1 Specifications/regulations/approvals
Standards • The 3RU11 thermal overload relays and the 3RB10 and 3RB12 electronic
overload relays comply with the following standards:
IEC 60947-1/DIN VDE 0660 Part 100
IEC 60947-4-1/DIN VDE 0660 Part 102
IEC 60947-5-1/DIN VDE 0660 Part 200
IEC 60801-2, -3, -4, -5; UL 508/CSA C 22.2.
• The 3RB10 and 3RB12 electronic overload relays also comply with the
EMC standards. This standard isn’t relevant for the 3RU11 thermal over-
load relays.
Approvals/test reports Requests for confirmation of approvals, testing certificates and tripping
characteristics can be sent to Technical Assistance per E-mail at
E-mail-Address: technical-assistance@siemens.com.
Tripping classes The tripping classes describe time intervals within which the overload relays
have to trip from a cold state at 7.2 times the set current in the case of a
symmetrical, three-pole load. The following table shows the tripping times
in relationship to the tripping classes in accordance with the IEC 60947-4-1
standard:
The tripping classes that the 3RU11, 3RB10 and 3RB12 overload relays are
available in, can be found in section 4.2.
Time-delayed overload
releases
The following table contains the operating limits of time-delayed overload
releases in the case of an all-pole load:
Tripping class Tripping time tA in sec. at
7. 2 x Ie from a cold state
10 A
10
20
30
2 < tA ≤ 10
4 < tA ≤ 10
6 < tA ≤ 20
9 < tA ≤ 30
Table 4-1: Tripping classes/Tripping time
Overload
release type
Multiple of the set current Reference
ambient
temperature
ABCD
Ambient
temperature
compensated
1.0 5 1. 2 1. 5 7. 2 +2 0 ° C
Not
tripped
< 2 h
Tripped
< 2 h
Tripped
< 4 min.
Tripped from
a cold state
in 4 to 10
sec.
CLASS 10
< 2 h < 2 h < 8 min. 6 to 20 sec.
CLASS 20
Table 4-2: Operating limits of time-delayed overload releases in the case of an all-pole load
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-3
Resistance to extreme
climates
The 3RU11, 3RB10, and 3RB12 overload relays are climate-proof in acc. with
IEC 721.
Shock protection The 3RU11, 3RB10, and 3RB12 overload relays are shockproof in acc. with
DIN VDE 0106 Part 100.
Depending on the attachment to other devices, extended terminal covers
are to be attached to the connecting bars.
Ships' systems The 3RU11, 3RB10, and 3RB12 overload relays are suitable for use on ships.
The overload relays have been submitted to:
•GL (Germany)
• LRS (Great Britain)
• DNV (Norway)
Explosion-proof motors The 3RU11 thermal overload relays and the 3RB10 and 3RB12 electronic
overload relays comply with the regulations for the overload protection of
explosion-proof motors of "increased safety" protection types (EEx d and
EEx e) in acc. with EN 50 019/DIN VDE 0165 and DIN VDE 0170/0171:
The numbers of the individual test reports as well as individual notes on the
application of overload relays are in Section 4.3 "Application and use".
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-4 A5E40534713002A/RS-AA/001
4.2 Device description
4.2.1 Overview
Protection function Overload relays are used for current dependent protection of electrical
equipment (for example motors) against overheating. Overheating can be
caused by overload, asymmetrical current consumption, phase loss in the
power network, or locked rotor. With Overload, phase imbalance, phase loss
or locked rotor there is an increase in the motor current that is well above
the set rated motor current. This increase in current, that over a longer
period of time can damage or even destroy the equipment, is monitored and
evaluated by the overload relay. There are two function principles for over-
load relay protection available: thermal and electronic.
Function principles With Thermal overload relays (see overload relay 3RU11) an increase in cur-
rent heats up the bimetal strips inside the device by means of heating ele-
ments. The strips then bend and activate auxiliary contacts by means of a
tripping mechanism.
With an electronic overload relay (see overload relays 3RB10 and 3RB12) the
current increase is measured by an integrated current transformer then eval-
uated by the corresponding electronics, which then send an impulse to the
auxiliary contacts.
The auxiliary contact shuts down the contactor and therefore the load. The
switching time is dependent on the relationship of tripping current to the set
current and can be found in the form of long stability tripping characteristic
curves (see section 4.3 "Application and use").
Product offering There are 3 overload relay families available:
3RU11 thermal overload relays
The 3RU11 thermal overload relays, from 0.11 A to 100 A, are designed for
current dependent protection of loads with normal starting (tripping class
CLASS 10).
3RB10 electronic overload relays
The self-powered 3RB10 electronic overload relays, from 0.1 A to 630 A, are
designed for current dependent protection of loads with normal and heavy
starting (tripping classes CLASS 10 and CLASS 20).
3RB12 electronic overload relays
The externally powered 3RB12 electronic overload relays, from 0.25 A to
820 A are designed for current dependent protection of loads with normal
and heavy starting (tripping classes CLASS 5, 10, 15, 20, 25 and 30, adjust-
able on the device).
In addition to current dependent protection of loads against non-permissible
overheating, the 3RB12 electronic overload relay also offers the possibility
for temperature monitoring of the motor windings by use of a thermistor
(PTC) sensor circuit. The load can also be protected against excess tempera-
ture that, for example, could appear indirectly due to blocked coolant flow
and therefore could not be measured by current dependent means.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-5
Furthermore the 3RB12 electronic overload relay offers the possibility to pro-
tect the installation against the results of a ground fault with its internal/
external ground fault monitoring.
4.2.2 Detailed device description
Description 3RU11 thermal overload relays
The 3RU11 thermal overload relays from 0.11 A to 100 A are available with
tripping class CLASS 10 and offer current dependent protection of loads
with normal starting at a low price. This is an economical protection device,
especially in the lower ratings range.
3RB10 electronic overload relays
The self-powered 3RB10 electronic overload relays from 0.1 A to 630 A are
available with tripping classes CLASS 10 and CLASS 20. With these two
tripping classes they offer optimal current dependent protection of loads
with normal- and heavy starting.
The 3RB10 electronic overload relay is similar to the 3RU11 thermal overload
relay in dimensions, in operational control and in the way they mount to con-
tactors. That way the thermal overload relay can be easily substituted by the
electronic version, when the application requires phase loss trip within
3 seconds, a wide current adjustment range (1 : 4) or also lower heat
generation.
The accessories for the thermal and electronic devices are identical.
3RB12 electronic overload relays
The 3RB12 electronic overload relays from 0.25 A to 820 A with external
power supply are suitable for normal starting and heavy starting with the
adjustable setting of the variable tripping classes CLASS 5 to CLASS 30. In
addition to the adjustable variable tripping classes, the 3RB12 electronic
overload relay offers a large number of additional built-in features and pro-
tection functions: overload warning, thermistor-motor protection-function,
ground fault detection, self-monitoring, status indicator by means of LEDs,
and analog output. More detailed information about the built-in features and
functions in section 4.3 "Application and use".
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-6 A5E40534713002A/RS-AA/001
Features/customer ben-
efits
The following table provides an overview of the features and resulting bene-
fits of the three overload relay families:
Feature Customer benefits 3RU11 3RB10 3RB12
Protection functions
Tripping due to an overload • guarantees an optimal current dependent protection
of the load against non-permissible overheating as a
result of an overload.
xx x
Tripping due to phase imbalance • guarantees an optimal current dependent protection
of the load against non-permissible overheating as a
result of phase imbalance.
xx x
Tripping due to phase loss • minimizes the heating of the three-phase motor during
single-phase operation 1).
xx
2)x
Tripping due to excessive temperature
by
integrated thermistor motor protection
function
• permits optimal temperature-dependent protection of
loads against impermissibly high temperature rises,
e.
g. for stator-critical motors, reduced coolant flow, pol-
lution of the motor surface or long starting and breaking
procedures
• saves an additional unit
• saves space in the switchgear cabinet
• reduces wiring complexity and costs
3)3)x
Tripping due to an earth fault
by
internal 4) or external earth fault monitoring
• permits optimal protection of the load in the case of
minor short-circuits or earth faults caused by damage to
insulation, humidity, condensation, etc.
• eliminates additional unit
• saves space in the switchgear cabinet
• reduces wiring complexity and costs
x
Features
RESET function • allows manual or automatic resetting of the relay. xx x
TEST function • permits easy checking of correct functioning and the
wiring.
xx x
Status display • signals the current operational state. xx x
Large current setting knob • makes it easier to set the relay accurately to the right
current value.
xx x
Integrated auxiliary contacts
(1 NO + 1 NC)
• allow the load to be disconnected in the case of a
disturbance
• enable tripped signals to be output.
xx x
Design of load feeders
Short-circuit strength up to 100 kA at 690 V
(in combination with the appropriate
fuse or circuit-breaker)
• guarantees optimum protection of the load and the
operating personnel in the event of short-circuits
caused by insulation breakdown or faulty switching
operations.
xx x
Electrical and mechanical compatibility
with the 3RT1 contactors
• simplifies project planning
• reduces the project engineering work and costs
• permits space-saving direct mounting apart from
individual mounting.
xxx
5)
Straight-through current transformer
(the leads are directly routed short-circuit-proof
to the main terminals of the contactor through
the feed-through openings of the overload
relay)
• reduces the contact resistances (only one contact point)
• saves connection costs (quick, easy and no tools
required)
• saves material costs (no need for busbars)
• reduces installation costs.
only
3RB10 56-
.FW0
only
3RB12 46-....
1)Single-phase operation: Abnormal operating state of a
three-phase induction motor in which a phase is inter-
rupted.
3)In combination with the 3RN thermistor motor protection
devices, additional temperature-based protection can be imple-
mented.
5)Exception: For 3RB12 46, only individual mounting
2)Tripping from warm state within 3 seconds 4)Special device variants: See selection and ordering data.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-7
Feature Customer benefits 3RU11 3RB10 3RB12
Further characteristics
Temperature compensation • allows implementation of the relay at high temperatures
without derating
• prevents premature tripping
• permits compact design of the switchgear cabinet with-
out the need for clearance between the devices and/or
load feeders
• simplifies project planning
• allows space to be saved in the switchgear cabinet.
xx x
High long-term stability • guarantees reliable protection of loads even after years
of operation under harsh conditions.
xx x
Wide current adjustment ranges • reduce the number of variants
• minimize the project engineering work and costs
• provide savings in inventories in terms of work, costs
and capital tie-up.
xx
Trip classes > CLASS 10 • permit solutions for heavy starting and extremely
heavy starting.
xx
Minimal power losses • reduce the energy consumption (the energy consump-
tion is up to 95% lower than for thermal overload relays)
and therefore the energy costs
• minimize the temperature rise for the contactor and
switchgear cabinet – which may obviate the need for a
cabinet cooling system
• allow space to be saved by direct mounting on the con-
tactor and in the case of high motor currents (i.
e. heat
isolation is not necessary).
xx
Internal power supply • saves project engineering and connection of an
additional control circuit.
1)x
Variable setting of the trip classes
The release class required can be set in
accordance with the prevailing start-up con-
ditions by means of a six-position rotary
switch (CLASS 5, 10, 15, 20, 25 or 30)
• reduces the number of variants
• minimizes the project engineering work and costs
• permits savings in inventories in terms of work, costs
and capital tie-up.
x
Analog output2)• allows an analog output signal to be output to control in-
struments, PLCs or to bus systems
• saves an additional transducer and signal converter
• saves space in the switchgear cabinet
• reduces wiring complexity and costs
x
Overload warning • indicates impending tripping of the relay due to an over-
load, phase unbalance or phase failure directly on the de-
vice
• enables impending tripping of the relay to be signalled
via an external indicator lamp connected to the corre-
sponding auxiliary contacts2)
• permits early implementation of countermeasures in the
case of long-term current-dependent loading of the con-
sumer above the limit current
• saves an additional relay
• saves space in the switchgear cabinet
• reduces wiring complexity and costs
x
1)The SIRIUS 3RU11 thermal overload relays operate
according to the bimetal-strip principle and therefore do
not require an additional control circuit.
2)Special device variants: See selection and ordering data
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-8 A5E40534713002A/RS-AA/001
Frame sizes/device
designs
The following table provides an overview of the 3RU11 thermal overload
relay and the 3RB10 electronic overload relay in their available frame sizes.
The individual frame sizes are arranged to show the maximum rated current,
the lowest and highest adjustable ranges as well as the available tripping
classes.
Frame size S00 S0 S2 S3 S6 S10/12
Device width 45mm 45mm 55mm 70mm 120mm 145mm
3RU11 thermal overload relay
Base Number 3RU11 16 3RU11 26 3RU11 36 3RU11 46 — —
Max. Rated current 12 A 25 A 50 A 100 A — —
Lowest adjustable range 0.11...0.16 A 1.8...2.5 A 5.5...8 A 18...25 A — —
Highest adjustable range 9...12 A 20...25 A 40...50 A 80...100 A — —
Tripping class CLASS 10
3RB10 electronic overload relay
Base Number 3RB10 16 3RB10 26 3RB10 36 3RB10 46 3RB10 56 3RB10 66
Max. Rated current 12 A 25 A 50 A 100 A 200 A 630 A
Lowest adjustable range 0.1...0.4 A 0.1...0.4 A 6...25 A 13...50 A 50...200 A 55...250 A
Highest adjustable range 3...12 A 6...25 A 13...50 A 25...100 A 50...200 A 300...630 A
Tripping class CLASS 10 and CLASS 20
Table 4-3: Overview of the designs of both the 3RU11 and 3RB10 overload relays
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-9
The 3RB12 electronic overload relay comes in four frame sizes. These can
be found in the following table. In the table the individual frame sizes are
arranged to show the maximum rated current, the lowest and highest
adjustable ranges as well as the available tripping classes. Furthermore the
various designs are described below.
Detailed information More detailed technical information on overload relays can be found under
section 4.7 "Technical data".
Base number 3RB12 46 3RB12 53 3RB12 57 3RB12 62
Max. Rated current 100 A 205 A 500 A 820 A
Lowest adjustable range 0.25...6.3 A 50...205 A 125...500 A 200...820 A
Highest adjustable range 25...100 A 50...205 A 125...500 A 200...820 A
Tripping class CLASS 5, 10, 15, 20, 25 and 30, adjustable
Designs
Standard design Comes with the option to connect a thermistor (PTC) sensor circuit as well as an additional current
transformer and two outputs (each 1 NO + 1 NC),that can be used on each model for shut down
and alarm for an overload trip, Thermistor trip, ground fault trip and/or a pending overload (overload
warning).
Design with internal
ground fault detection
Like the standard design, except with additional internal ground fault detection for the detection
of fault currents.
Design with bistabil
output relays
Like the standard design, except with bistabil output relays.
Design with analog output Like the standard design, except with additional analog 4...20 mA output signal for the motor
current related to motor current setting; for the control of measuring instruments, for process-
ing in management systems, communication using networking systems, indication of overload
and motor current.
Table 4-4: Overview of the 3RB12 electronic overload relay designs
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-10 A5E40534713002A/RS-AA/001
4.3 Application and use
4.3.1 Overload relay in the motor circuit
Starter: Contactor +
overload relay
The individual overload relay families protect the following loads against the
effects of an overload, phase loss and phase imbalance.
1) devices without internal ground fault detection.
Important
The protection of the load can’t be realized by the overload relay alone. The
overload relay only senses the current, evaluates it and switches the auxil-
iary contacts according to the respective trip curve. The auxiliary contact
(95-96, NC) will switch off the connected contactor and therefore the load.
For the protection of 3RU11 3RB10 3RB12
Three phase loads X X X
DC loads X ——
Single phase-AC-loads X — X1)
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-11
In order to switch the load the following contactors will be needed.
The following table offers an overview regarding the coordination of the
overload and contactor with their ratings.
X = Directly mounted
¿ = Stand alone installation (device with straight through transformer)
DIN rail mountable on 35-mm DIN rail
Overload relays in wye-
delta combinations
When overload relays are used in wye-delta combinations, it must be taken
into consideration that only of the motor current flows through the line
contactor. An overload relay built onto the line contactor must be set to this
level (i.e. 0.58 of the motor current).
A coordination of the overload relay to the line contactor in 3RA wye-delta
combinations can be found in the catalog, chapter 3.
3RU11 16
3RB10 16
3RU11 26
3RB10 26
3RU11 36
3RB10 36
3RU11 46
3RB10 46 3RB10 56 3RB10 66 3RB12 46 3RB12 53 3RB12 57 3RB12 62
400 V 460 V max.
adjust-
able
current
12 A 25 A 50 A 100 A 200 A 630 A 100 A 205 A 500 A 820 A
kW HP Contactor Frame
size
width
S00
45 mm
S0
45 mm
S2
55 mm
S3
70 mm
S6
120 mm
S10/S12
145mm 70mm 120mm 145mm 230mm
3kW 3 3RT1015 S00 X ¿
4kW 5 3RT1016 S00 X ¿
5.5 kW 7.5 3RT10 17 S00 X ¿
53RT1023 X ¿
5.5 kW 7.5 3RT10 24 S0 X ¿
7. 5 k W 1 0 3 R T 10 2 5 S 0 X ¿
11 kW 15 3 RT10 2 6 S 0 X ¿
20 3RT10 33 X ¿
15 kW 25 3RT10 34 S2 X ¿
18.5 kW 30 3RT10 35 S2 X ¿
22 kW 40 3RT10 36 S2 X ¿
30 kW 50 3RT10 44 S3 X ¿
37 kW 60 3RT10 45 S3 X ¿
45 kW 75 3RT10 46 S3 X ¿
55 kW 100 3RT10 54 S6 X X
75 kW 125 3RT10 55 S6 X X
90 kW 150 3RT10 56 S6 X X
110 kW 150 3RT10 64 S10 X X
132kW 200 3RT1065 S10 X X
160 kW 250 3RT10 66 S10 X X
200 kW 300 3RT10 75 S12 X X
250 kW 400 3RT10 76 S12 X X
375 kW 500 3TF68 Frame
Size 14
XX
450 kW 700 3TF69 Frame
size 14
XX
Table 4-5: Coordination of the overload relays to the contactors
1
3
---------
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-12 A5E40534713002A/RS-AA/001
Important
3RB12 electronic overload relays with internal ground fault detection are not
suitable for use in wye-delta combinations, since transient current spikes
occur at switch-over from wye to delta operation. These can result in the
triggering of the ground fault detection.
Short circuit For short circuit protection, fuses (fused branch circuit) or circuit breaker
(fuseless load feeder/combination assembly) must be used. Appropriate
short-circuit protection devices for overload relay with contactor are found in
section 4.7 "Technical Data".
When selecting from the table, the coordination type needs to be
considered.
Coordination type The coordination types (EN 60947-4-1 (VDE 0660 part 102)) describe the
performance characteristics after a short-circuit. They are differentiated in
2types:
With coordination type 1 the contactor or starter may not endanger people
or installations in the event of a short-circuit and does not need to be
suitable for further operation (without repair or partial replacement).
With coordination type 2 the contactor or starter may not endanger people
or installations in the event of a short-circuit and must be suitable for
further operation. There is the danger of welding contacts. In this case, the
manufacturer must provide maintenance instructions.
Operation with fre-
quency converters
The 3RU11 thermal overload relays are suitable for use with frequency con-
verters. Depending on the frequency of the converter the trip current must
sometimes be adjusted to a higher current than the motor current because
of appearing eddy current and Skin effect. The adjusted current settings can
be taken from chapter 2 "3RV1 circuit breaker/MSP" under section 2.8 "Appli-
cation notes for the use of 3RV1 downstream from frequency converters/
inverters with pulsing voltage".
The 3RB10 electronic overload relay and 3RB12 are suitable for frequencies
of 50/60 Hz and their related harmonics. That way it’s possible to use the
3RB10 and 3RB12 on the line side of a frequency converter.
If there is a need for motor protection on the load side of a frequency con-
verter then we recommend the 3RN thermistor motor protection device or
the 3RU11 thermal overload relay.
Normal and heavy
starting
When selecting the correct overload relay the ramp-up time needs to be
taken into consideration in addition to the rated motor current. The ramp-up
time is the time it takes the motor to reach its full load speed. If this time
falls under 10 seconds, it’s called normal starting.
However, if based on special load requirements (for example, the starting up
of large centrifuges), the motor needs a ramp-up time of more than
10 seconds it’s called heavy starting. For the protection of heavy starting
motors, special overload relays are required with the respective tripping
classes (ex.: CLASS 20, CLASS 30). With heavy starting, the wiring and con-
tactors must be specially sized due to the increased thermal loading. The
required sizing is taken into consideration in the coordination tables in chap-
ter 4.7 "Technical Data".
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-13
Explosion-proof motors The 3RU11 thermal overload relays comply with the regulations for the over-
load protection of explosion-proof motors of "increased safety" protection
types EEx e IEC 50 019/ DIN VDE 0165, DIN VDE 0170/171.
KEMA-test certificate no. Ex-97.Y.3235
DMT 98 ATEX G001
EN 50 019: 1977 + A1 ... A5,
increased safety "e": Attachment A, Guidelines for the temperature monitor-
ing of squire-cage motors in operation.
The 3RB10 thermal overload relays comply with the regulations for the over-
load protection of explosion-proof motors of "increased safety" protection
types EEx d and EEx e IEC 50 019/DIN VDE 0165, DIN VDE 0170/171 and
PTB-Test rules.
PTB-test report no. Nr. 3.43-8803/98 (for S00 to S3)
EG-special test certificate in acc. with directive 94/9/EG:
PTB 01 ATEX 3306 (for S00 to S3)
PTB 01 ATEX 3203 (for S6)
PTB 01 ATEX 3316 (for S10/S12)
The 3RB12 thermal overload relays comply with the regulations for the over-
load protection of explosion-proof motors of "increased safety" protection
types EEx d and EEx e IEC 50 019/DIN VDE 0165, DIN VDE 0170/171 and
PTB-Test rules.
In the case of tripping devices with DC operation, electrical isolation must
be secured by means of a battery network or a safety transformer in compli-
ance with DIN VDE 0551.
When the 3RB12..-....1 electronic overload relays (no change to the switch-
ing state of the auxiliary contact elements in the event of the failure of the
control supply voltage) are used to protect EEx d and EEx e motors, sepa-
rate monitoring of the control supply voltage is recommended.
PTB-test report no. Nr. 3.53-3907/96.
EG-special test certificate in acc. with directive 94/9/EG:
PTB 01 ATEX 3220.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-14 A5E40534713002A/RS-AA/001
Advantages of load
feeders/combination
starters with overload
relays
The assembly of load feeders/combination starters with overload relays
(Fuses+contactor+overload relay or circuit breaker+contactor+overload
relay) has the following advantages over the purely fuseless assembly (cir-
cuit breaker/MSP+contactor):
• It is easy to distinguish between tripping caused by an overload and trip-
ping caused by a short circuit. In the event of a short circuit, the fuses
limit the short-circuit current; in the event of an overload, the overload
relay switches off the contactor and thus the motor.
• At voltages > 400 V, fuses have a short-circuit breaking capacity of up to
100 kA. As a result, in 690 V systems, in particular, fused motor feeders
are often preferred.
• If automatic RESET is set, the overload relay resets itself automatically
after a trip and does not have to be switched on again locally.
• A remote reset can be implemented very easily by means of attachable
electrical and mechanical RESET modules for the 3RU11 and 3RB10 over-
load relays. The electrical remote RESET is already integrated in the
3RB12 multifunction devices.
• Longer ramp-up times can be only accomplished in connection with the
3RB10 and 3RB12 electronic overload relays.
• Wide adjustable setting range of 1:4 are only possible with the 3RB10 and
3RB12 electronic overload relays.
• Combinations of a circuit breaker for starter protection, a contactor, and
an overload relay also have the advantage that the feeder can be easily
isolated and that, in the event of a short circuit, it is disconnected in three
poles.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-15
4.3.2 3RU11 thermal overload relays and 3RB10 electronic overload relays
Functions
Fig. 4-1: Front view 3RU11
3RB10 is the same as 3RU11 with exception of the integrated sealable cover.
1 Scale for setting the rated current of the load.
2 Reset button (blue):
Press the RESET button to get the relay ready before putting it into
operation or after tripping.
3 STOP button (red):
The STOP button opens the normally closed contact, which remains
open until the button is released again. The downstream contactor and
thus the motor can be switched off.
Press the STOP button to switch the relay off when it is in operation.
The normally closed contact of the auxiliary switch opens. The relay
remains ready for operation.
4 Device type plate
5 Terminals for three motor supply lines
6 Terminals for normally closed/normally open contacts (95/96 for
normally closed contacts, 97/98 for normally open contacts)
7 Contact position indicator/test
The slider for the contact position indicator also serves as a test func-
tion. When it is operated, tripping of the overload relay is simulated.
The normally closed contact (95/96) opens, and the normally open con-
tact (97/98) closes. The switching position is indicated.
8 Switch for manual/auto RESET:
By pressing and turning the blue button you can select automatic or
manual reset.
In the case of the relay setting M (manual RESET), the switching posi-
tion of the relay is indicated:
I = ready for operation
O = tripped
9 Only in the case of frame size S00:
Terminal A2: repetition terminal of the contactor coil
Terminal 14/22: repetition terminal of the contactor auxiliary contact.
95 96 97 98
STOP RESET
A2
2T2 4T2 6T3 14/22
MA TEST 7
1
9
9
5
6
3
2
8
4
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-16 A5E40534713002A/RS-AA/001
Areas of use The 3RU11 thermal overload relays are designed for the protection of
3-phase AC, DC and single phase AC loads. If the 3RU11 thermal overload
relay is going to protect DC loads or single phase loads, then all bimetal
strips must be heated. Therefore, all main current paths of the relay need to
be wired in series.
The 3RB10 electronic overload relays are designed for the protection of
three phase loads in sine-wave 50/60 Hz voltage networks. The relay is not
suitable for protection of DC loads or single phase loads. In loads with single
pole loading, the 3RU11 thermal overload relays or the 3RB12 electronic
overload relays (only suitable for the protection of single phase loads) can be
used.
Supply power For the operation of the 3RU11 overload relay there is no additional supply
voltage necessary.
The 3RB10 overload relay is self-powered. That means there is no additional
supply voltage necessary.
Setting The 3RU11 thermal overload relay and the 3RB10 electronic overload relay
are set by adjusting to the rated motor current with a setting dial. The range
on the setting dial is calibrated in amperes.
Important
The overload relays may only be operated between the lower and upper
adjustment marks on the current setting range. That means that the opera-
tion of the overload relay under or over the current setting range is not per-
mitted.
The following drawing shows an example of setting the 3RU11 thermal over-
load relay, frame size S00, to the rated motor current.
Fig. 4-2: Setting the rated motor current
Sealable cover The following drawing shows how to secure the current setting dial and the
"Manual/Automatic RESET" selector switch against unauthorized adjustment
for the 3RU11 thermal overload relay and the 3RB10 electronic overload
relay.
Ie
A
max. + 60 °C
max. + 70 °C
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-17
Sealing the current
setting dial
3RU11 3RB10
Fig. 4-3: Sealing the current setting dial (frame size S00)
Important
When the sealing cover (transparent sliding window) is closed (3RU11) or
mounted (3RB10), it is not possible to use the blue reset button for a switch-
over between M (manual RESET) and A (automatic RESET).
Ambient requirements The 3RU11 thermal overload relays are temperature (ambient) compensated
according to IEC 60 947-4-1/DIN VDE 0660 part 102 for a temperature range
of -20 °C to +60 °C. At a temperature from +60 °C to +80 °C the setting
value of the setting range needs to be reduced by a specific factor according
to the table below.
According to the table 70 °C has a reduction factor of 13 %. This factor is so
small, that because of the overlapping of the current setting ranges no gaps
appear to the next setting range. So that at 70 °C a continuous current range
of 0.11 A to 87 A can be used.
The 3RB10 electronic overload relay are insensitive to outside influences,
such as vibration, aggressive environment, weathering and strong tempera-
ture swings. In the temperature range of -25 °C to +70 °C the 3RB10 elec-
tronic overload relays in the sizes S00 to S3 are temperature (ambient) com-
pensated according to IEC 60 947-4-1/DIN VDE 0660 part 102.
1
2
Ambient temperature in °C Reduction factor for the top setting value
+60
+65
+70
+75
+80
1. 0
0.94
0.87
0.81
0.73
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-18 A5E40534713002A/RS-AA/001
The 3RB10 electronic overload relays in the sizes S6 and S10/12 require an
adjustment to the setting value of the setting range by a specific factor at
ambient temperatures of ≥ +60 °C according to the tables below..
Manual-automatic
RESET
By pushing in and turning the blue button (RESET button) on the 3RU11 ther-
mal overload relays and 3RB10 electronic overload relays, you can choose
between manual and automatic reset.
The following figure shows how to switch between manual and automatic
for the 3RU11 and 3RB10 using the example of the 3RU11, frame size S00.
Fig. 4-4: Manual-automatic RESET
When manual resetting is selected, a reset can be performed directly on the device
by pressing the RESET button. Remote resetting can be implemented by using the
mechanical and electrical RESET modules from the range of accessories (see Sec-
tion 4.4, "Accessories"). When the blue button is set to Automatic RESET, the relay
will be reset automatically.
A reset is not possible until the recovery time has elapsed (see “Recovery time").
Type Ambient temperature
+60° C +70° C
3RB10 56-.F.0 1.00 0.80
3RB10 66-.GG0 1.00 0.80
3RB10 66-.KG0 1.00 0.93
3RB10 66-.LG0 0.90 0.80
Table 4-6: Reduction factor for the top setting value of a stand alone device
Type Ambient temperature
+60° C +70° C
3RB10 56-.F .0 0.70 0.60
3RB10 66-.GG0 0.70 0.60
3RB10 66-.KG0 0.82 0.70
3RB10 66-.LG0 0.70 0.60
Table 4-7: Reduction factor for the top setting value when direct mounting to the contactor
MANUAL
AUTO
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-19
Recovery time After tripping due to an overload, it takes a certain length of time for the bimetal
strips of the 3RU11 thermal overload relays to cool down. The relay can only be
reset once it has cooled down. This time (recovery time) is dependent on the trip-
ping characteristic and the level of the tripping current.
After tripping due to overload, the recovery time allows the load to cool down.
With the 3RB10 electronic overload relays the recovery time is fixed when
set on Automatic-RESET and lasts about 4 minutes for frame sizes S00 to
S3 and about 7 minutes for frame sizes S6 and S10/S12. When set to man-
ual RESET then the device can be reset immediately.
TEST function Correct functioning of the ready status of the overload relay can be tested with the
TEST slide. The slide is operated to simulate tripping of the relay. During this simu-
lation, the NC contact (95-96) is opened and the NO contact (97-98) is closed
whereby the overload relay checks that the auxiliary circuit is wired correctly.
When the overload relay is set to Automatic RESET, an automatic reset takes
place when the TEST slide is released. The relay must be reset using the RESET
button when it is set to Manual RESET.
STOP-Function When the STOP button is pressed, the NC contact (95-96) is pressed, the NC con-
tact is opened and the series-connected contactor and therefore the load is
switched off. The load is reconnected via the contactor when the STOP button is
released. Pressing the STOP button does not close the NO contact (97-98).
Status indication The current status of the overload relay is indicated by the position of the marking
on the "TEST function/switching position indicator" slide. The marking on the slide is
on the left at the "O" mark following a trip due to overload or phase failure and at
the "I" mark otherwise.
Auxiliary contacts The overload relay is equipped with an NO contact (97-98) for the tripped signal
and an NC contact (95-96) for switching off the contactor.
The auxiliary contacts have high contact reliability and are therefore suitable
for with PLC’s. Also due to the high switching capacity they can be directly
connected to the contactor coil.
The following table shows the reaction of the auxiliary contact when
activating the TEST, STOP and RESET button.
TEST STOP RESET
NC 95/96
NO 97/98
Table 4-8: Auxiliary contact 3RU11/3RB10
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-20 A5E40534713002A/RS-AA/001
Tripping characteristic The tripping characteristics show the relationship between the tripping time and
the tripping current as a multiple of the operational current Ie and are specified
for symmetrical three-pole and two-pole loading from cold state.
The smallest current at which tripping occurs is called the limiting tripping cur-
rent. In accordance with IEC 60 947-4-1/ DIN VDE 0660 Part 102, this must lie
within certain specified limits. The limit tripping current for the 3RU11 overload
relay for symmetrical three-pole loading lies between 105 % and 120 % of
the current setting and for the 3RB10 electronic overload relay at 114 % of
the current setting.
Starting from the limiting tripping current, the tripping characteristic moves on
to larger tripping currents based on the characteristics of the so-called trip
classes (CLASS 10, CLASS 20 etc., see section 4.1 "Specifications/regulations/
approvals").
The tripping characteristic of a three-pole 3RU11 thermal overload relay (see
characteristic curve for symmetrical three-pole loading from cold state) is valid
when all three bimetal strips are loaded with the same current simultaneously.
If, however, only two bimetal strips are heated as a result of phase failure, these
two strips would have to provide the force necessary for operating the release
mechanism and, if no additional measures were implemented, they would require
a longer tripping time or a higher current. These increased current levels over long
periods usually result in damage to the load. To prevent damage, the 3RU11 ther-
mal overload relay features phase failure sensitivity which, thanks to an appropriate
mechanical mechanism, results in accelerated tripping according to the characteris-
tic for two-pole loading from cold state.
Fig. 4-5: Schematic representation of time-current-characteristic for 3RU11
These are schematic representations of characteristics. The characteristics for individual 3RU11
thermal overload relays can be requested from Technical Assistance at the following E-mail-address:
technical-assistance@siemens.com .
10
100
1000
10 000
5000
2000
500
200
50
20
5
2
1
1
2
5
10
40
60
100
0,6 0,81 2 34 6810 20304060
80 x In
A
min
s
15
three-pole
load
two-pole
load
Current
Tripping time
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-21
The tripping characteristic of a three-pole loaded 3RB10 electronic overload
relay from cold state (see schematic representation, Characteristic "1") is valid
when all three phases are loaded with the same current simultaneously. In the
case of phase loss or a current unbalance of more than 40 %, the 3RB10 solid-
state overload relay trip contacts switch within 3 seconds. Thanks to rapid trip-
ping in accordance with the tripping characteristic for two-pole loading from
cold state (see schematic representation, Characteristic "3"), the temperature
rise in the load is minimized.
Fig. 4-6: Schematic representation of time-current-characteristic for CLASS 10 and CLASS 20, 3RB10
These are schematic representations of characteristics. The characteristics for individual 3RB10
electronic overload relays can be requested from Technical Assistance at the following E-mail-
address: technical-assistance@siemens.com .
In contrast to a load in the cold state, a load at operating temperature has a lower
heat reserve. This fact affects the overload relay in that following long-term load-
ing at operational current Ie needs to be reduced. The tripping time for the
3RU11 thermal overload relay is reduced to 25 % and for the 3RB10 elec-
tronic overload relay to about 30 % (see schematic representation, Charac-
teristic "2").
Phase loss protection The 3RU11 thermal overload relays and the 3RB10 electronic overload relays
both have phase loss protection (see "Tripping characteristics") for the purpose of
minimizing the heating of the load during single-phase operation as a result of
phase loss.
CLASS 10 CLASS 20
10
6
4
6
4
2
124 10x Ie
smin
NSB00294
0,6
16
8
10
50
1
2
20
40
1
2
3
Tripping time
Tripping current (mean values)
10
6
4
6
4
2
124 10x Ie
smin
NSB00293
0,6
16
8
10
50
1
2
20
40 1
2
3
Tripping time
Tripping current (mean values)
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-22 A5E40534713002A/RS-AA/001
Important
The 3RB10 electronic overload relays are not suitable for the protection of
loads with a grounded wye point.
Fig. 4-7: Load types, that the 3RB10 can provide with current dependent protection
4.3.3 3RB12 electronic overload relays
Functions Drawing of the front view 3RB12:
Fig. 4-8: Front view of the 3RB12 electronic overload relays
1 Terminals for the control supply voltage
2 Green "Ready" LED
3 Red "Ground Fault" LED
4 Red "Overload" LED
5 Combined TEST/RESET button with function test
6 1 NO contact/1 NC contact for overload/thermistor tripping or
1 NO contact/1 NC contact for overload/thermistor or ground fault
tripping
7 Terminals for thermistor input
8 Terminals for external summation current transformer
9 Terminals for remote or automatic RESET
10 Rotary dial for current setting
11 Rotary dial for the trip class
12 1 NO contact/1 NC contact for ground fault tripping or 1 NO contact/
1 NC contact for overload warning
13 Analog output 4 mA ... 20 mA
UVW
L1 L2 L3
UV
L1 L2 L3 N
UVW
L1 L2 L3
W
95 96 97 98 05 06 07 08
NCNC
5
10
15 20 25 30
CLASS
25
30
40
50
60 70 80 90
100
A
Ready
Gnd Fault
Overload
TEST/
RESET
SIEMENS
A1 A2 T1 T2/C1 C2 Y1 Y2
3RB12
NSB00297
2
3
4
5
6
7
8
9
10
11
12
1
13
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-23
Areas of use The 3RB12 electronic overload relays are designed for the protection of
3-phase and single phase AC loads. If single-phase AC motors are to be pro-
tected with the 3RB12 electronic overload relay, the microprocessor only moni-
tors one phase conductor. The main circuits must therefore be connected to
the current transformer in accordance with the operating instructions for the
3RB12 electronic overload relay.
Supply voltage The 3RB12 electronic overload relays require an external voltage supply. The
devices are available for the following control voltages:
24 V DC
110V to 120V AC
220 V to 240 V AC
The 3RB12 overload relay with the control voltage of 24 V DC can be oper-
ated with the help of the DC/DC power supply SITOP POWER 24 V / 0.375 A
(see section 4.4 "Accessories") on a DC supply from 30 V to 264 V.
Setting The 3RB12 electronic overload relay is adjusted to the rated motor current
using a rotary knob. The scale of the setting dial is calibrated in Amperes.
Important
The overload relays may only be operated between the lower and upper
adjustment marks on the current setting range, that means that the opera-
tion of the overload relay above or below the current setting range is not
permitted.
Note
In order to achieve a setting range of 0.25 A to 1.25 A, the wires going to the
motor must be looped through the openings in the 3RB1246 overload relay
multiple times in accordance with the instructions in section 4.5 "Mounting
and connection".
Furthermore the overload relay needs to be set for the required tripping
class.
Note
The wiring and the contactor must be sized for the appropriate tripping class
(CLASS). The overload relay is delivered with a default setting of tripping
class CLASS 10.
Sealable cover With the help of the sealable cover, 3RB1900-0A, the setting dial for rated
motor current and dial for tripping class selection can be secured against
unauthorized adjustment. The cover needs to be snapped in the place of the
middle identification tab.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-24 A5E40534713002A/RS-AA/001
Ambient requirements The 3RB12 electronic overload relays are insensitive to outside influences,
such as vibration, aggressive environment, weathering and strong tempera-
ture swings. In the temperature range of -25 °C to +70 °C the 3RB12 elec-
tronic overload relays are temperature (ambient) compensated according to
IEC 60 947-4-1/DIN VDE 0660 part 102.
Manual-automatic
RESET
A reset can be performed directly on the device by pressing the TEST/RESET
button. A remote reset is possible by connecting a button to terminals Y1 and
Y2 of the 3RB12 solid-state overload relay. Automatic resetting is still possible
by bridging terminals Y1 and Y2.
A reset is not possible until the recovery time has elapsed (see "Recovery
time").
Important
In the case of ground fault tripping, an automatic reset is not possible.
Recovery time Following a current-dependent trip due to overload, phase unbalance or phase
failure, the recovery time is approximately 5 minutes regardless of the reset
mode that has been selected. This time is permanently set in the microproces-
sor to allow the load sufficient time to cool down.
If, however, temperature-dependent tripping takes place as a result of a con-
nected PTC thermistor circuit, the device cannot be reset manually or automat-
ically until the winding temperature at the PTC thermistor falls to 5 K below the
response temperature.
After a ground fault trip, the overload relay can be activated again immediately
without waiting for a recovery time to elapse. After tripping as a result of a
ground fault an Automatic-RESET is not possible.
The recovery time can be taken from the following table depending on the
reset mode and the cause of the trip:
When the
3RB12
tripped as a
result of:
Then the overload relay is reset after the following time by:
brief push of the Test/
RESET Button
Remote-RESET (button
activated over Y1-Y2)
Automatic-RESET
(jumper** Y1-Y2)
Test immediate
Overload*after 5 min.
Thermistor*when 5 K under the tripping temperature is reached
Ground fault immediate non-functional
* In the case the thermistor- and overload trip at the same time, the longer of the two Reset times is correct.
**Jumper (B) is at the time of delivery connected to Y1.
Table 4-9: Recovery times
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-25
TEST function The relay can be tested to ensure the relay is functioning by using the com-
bined TEST/RESET button. The device hardware, LEDs, current monitoring,
thermistor input and ground fault input are tested when the button is pressed
for up to 2 seconds. If the button is depressed for up to 5 seconds, the current
transformer, resistive load and the microprocessor can be tested without the
need to deactivate the motor feeder. The motor feeder is deactivated after
5 seconds via the output relay of the 3RB12. On deactivation, all functions of
the 3RB12 solid-state overload relay are tested. The current transformer and
the resistive load are excluded from the functional test when no voltage is
applied to the main circuit.
Testing of the device functions can be done during operation.
STOP function When the TEST/RESET button is pressed, the overload relay switches off the
contactor and therefore the load after 5 seconds. The load is switched on again
via the contactor when the TEST/RESET button is pressed again briefly.
Status indication The status of the 3RB12 solid-state relay is displayed on 3 LEDs:
Green LED "Ready": Continuous green light indicates the operational readi-
ness. The 3RB12 is not ready (LED "Off") when control supply voltage is not
applied and when the function test was negative see "Test function").
Red LED "Overload": Continuous red light signals overload tripping due to cur-
rent overload and flashing red light indicates imminent tripping due to overload
(overload warning).
Red LED "Ground Fault": Continuous red light indicates the presence of a
ground fault.
Auxiliary contacts The 3RB12 solid-state overload relay is equipped with two outputs each with
one NO contact and one NC contact. Their use depends on the device variation:
1 NO (97-98) for the signal "tripped due to overload and/or thermistor";
1 NC (95-96) for shutting off the contactor and
1 NO(07-08) for the signal "tripped due to ground fault";
1 NC (05-06) for shutting off the contactor
or
1 NO (97-98) for the signal "tripped due to overload and/or thermistor and/or
ground fault";
1 NC (95-96) for shutting off the contactor
and
1 NO (07-08) for overload warning;
1 NC (05-06) for shutting off the contactor
Mono- and bistable
output relays
The difference between monostable and bistable can be seen in terms of the
tripping response of the auxiliary contacts on failure of the control supply volt-
age.
Note
The 3RB12 electronic overload relays come standard with monostable out-
put relays. A special variation is available with bistable output relays.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-26 A5E40534713002A/RS-AA/001
The monostable overload relays take up the "tripped" position on failure of the
control voltage (> 200 ms) and resume their original state once voltage has
been restored. These devices are suitable for systems in which the control volt-
age is not specifically monitored.
The bistable 3RB12 solid-state overload relays do not change state from
"tripped" or "not tripped" on failure of the control voltage. The auxiliary contacts
only switch in the event of an overload when supply voltage is applied. These
devices are therefore suitable for systems in which the control voltage is sepa-
rately monitored.
In the event of the failure of the control supply voltage for any length of time
(> 0.2 seconds), the output relays respond in either a monostable or
bistable manner, depending on the variant involved.
Fig. 4-9: Reaction of the monostable and bistable auxiliary contacts
Behavior of the output
relays given:
monostable
3RB12..-....0
bistable
3RB12..-....1
Loss of the control supply
voltage
Device trips No change to the switching
status of the auxiliary contact
elements
Return of the control sup-
ply voltage without prior
tripping
Device resets
Return of the control sup-
ply voltage after prior trip-
ping
Device remains tripped
Reset at:
- Overload trips after 5 minutes; thermistor trips when 5 K
under the operating temperature reached
- Ground fault trips immediately
Table 4-10: Loss of the control supply voltage
NSB00300
t
Control voltage failure
with prior thermistor
or overcurrent
tripping action
Control voltage failure
without prior thermistor
or overcurrent
tripping action
Control
voltage
bistable
monostable
bistable
monostable
Overheated motor:
device trips
Control
voltage
failure
Control
voltage
return
Manual/auto reset
after five minutes
or after the thermistor
has cooled down
Contact element open
Contact element closed
N.C.
N.O.
N.C.
N.O.
N.C.
N.O.
N.C.
N.O.
0
1
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-27
Thermistor motor
protection function
Connecting a thermistor (PTC) sensor circuit offers, in addition to the cur-
rent dependent protection, the possibility of directly monitoring the tem-
perature of the motor windings. That way the load is protected against
excessive temperature, that, may be derived from
- stator critical motors,
- motors with long start-up and braking processes
- motors with blocked cooling or high ambient temperature.
When excessive temperature is measured at the motor windings the 3RB12
switches the auxiliary contact (see point "Auxiliary contacts") shutting off the
contactor and therefore the load. The connection for the excessive tempera-
ture protection is broken-wire proof. That means the device trips when there
is an opening at the connection terminal. The thermistor-motor protection
function comes with this feature deactivated.
Analog output The motor current that is measured by the 3RB12..-...40 overload relay’s
microprocessor is converted and sent with an analog output signal of 4 mA
to 20 mA DC (max. current value of the 3 phases).
The following shows the relationship between the motor current and the
analog output signal:
4 ... 20 mA
1% x I
e = 0.128 mA
Iout Output current of the analog output
IMotor Motor current, max. phase
IeSet current (rated current for motor)
Example Iout = 10.40 mA; Ie = 6.0 A
I = 50 % v. Ie
IMotor = 3 A
Technical d a t a :
Max. output current 23 mA
Terminals "+" and "-"
Max. load 100 Ω
Accuracy +/- 10%
Short circuit-proof and idling-proof
Iout [mA] I/Ie [%]
0
4.000
4.128
5.280
7. 2 0 0
10.40
15.52
16.80
18.08
20.00
No connection,
wire break!
Device not in operation
0
1
10
25
50
90
100
110
125
I/Ie [%] = (Iout – 4 mA) / 0.128 mA
IMotor [A] = (Iout – 4 mA) x Ie /12.8 mA
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-28 A5E40534713002A/RS-AA/001
The analog output signal can control moving coil instruments with a 4 mA-
to 20 mA-input (the upper limit of the scale for all frame sizes is 125 %) or
can be stored through analog inputs of PLCs. Furthermore the current val-
ues can be transferred with a AS-Interface-analog module over the AS-Inter-
face network.
Ground fault protection To protect your load from minor short-circuits or ground faults caused by dam-
age to the insulation, humidity, condensation, etc., the 3RB12 solid-state over-
load relays offer the following two possibilities for earth fault monitoring:
- internal ground fault monitoring (not possible with wye-delta combina-
tions) for motors with 3-wire connections for the detection of fault cur-
rents ≥ 30 % of the operational current Ie under rated operation.
- External ground fault detection by connecting a summation current trans-
former (see "Accessories") for motors with 3-wire and 4-wire connection
for detecting sinusoidal fault currents (50/60 Hz) of 0.3 A, 0.5 A and 1 A.
In the case of a ground fault, the relay trips without a delay and switches off the
contactor and therefore the load via the auxiliary contactors (see "Auxiliary con-
tactors"). The "Tripped" state is signalled by a red LED "Ground Fault" (see "Indi-
cation of status").
Overload warning A blinking LED on the relay indicates when tripping is iminent as a result of
overload, phase imbalance or phase loss after exceeding a limit current. This
warning can also be signalled externally.
The overload warning occurs
-at 1.5xIe with symmetrical loading and
- at 0.85 x Ie with asymmetrical loading.
The overload warning makes it possible to take corrective measures (for
example, disconnecting the load) right away and avoid longer over current
dependent stress on the branch circuit.
Self-monitoring Self-monitoring causes the device to trip in the event of an internal fault. In
this case, the overload relay cannot be reset.
Tripping
characteristics
The tripping characteristics show the relationship between the tripping time and
the tripping current as a multiple of the operational current Ie and are specified
for symmetrical three-pole and two-pole loading from cold state.
The smallest current at which tripping occurs is called the limiting tripping cur-
rent. In accordance with IEC 60 947-4-1/DIN VDE 0660 Part 102, this must be
within certain specified limits. The limits of the limiting tripping current lie, in the
case of the 3RB12 solid-state overload relay for symmetrical three-pole loading,
between 110 % and 120 % of the operational current.
Starting from the limiting tripping current, the tripping characteristic moves on
to higher tripping currents based on the characteristics of the so-called trip
classes (CLASS 10, CLASS 20 etc. see section 4.1 "Specifications/regulations/
approvals").
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-29
The tripping characteristic of an overload relay with three-pole loading from cold
state (see the diagram “Tripping characteristic for three-pole loading”) is valid
when all three phases are loaded with the same current simultaneously. In the
event of a phase loss or current unbalance of more than 40 %, the 3RB12 over-
load relay switches off the contactor more quickly to minimize the temperature
rise in the load in accordance with the tripping characteristic for two-pole load-
ing from cold state (see the diagram "Tripping characteristic for 2-pole loading").
Fig. 4-10: Time-current-characteristics, schematic representation 3RB12
These are schematic representations of characteristics. The characteristics for individual 3RB12
electronic overload relays can be requested from Technical Assistance at the following E-mail-
address:
technical-assistance@siemens.com .
In contrast to a load in the cold state, a load at operating temperature has a
lower heat reserve. This fact affects the 3RB12 overload relay, in that, following
an extended period of loading at operational current Ie, the tripping time is
reduced by about 30 %.
Phase loss protection The 3RB12 electronic overload relays have phase loss protection (see "Tripping
characteristics") for the purpose of minimizing the heating of the load during
single-phase operation as a result of phase loss.
Three-pole loading Two-pole loading
120
100
50
20
10
5
2
1
50
20
10
5
2
12 510x
I
e
mins
0,6
CLASS 30
25
20
15
10
CLASS 5
Tripping time
Tripping current (mean values)
120
100
50
20
10
5
2
1
50
20
10
5
2
12 510x
I
e
mins
0,6
CLASS 30
25
20
15
10
CLASS 5
Tripping time
Tripping current (mean values)
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-30 A5E40534713002A/RS-AA/001
4.4 Accessories
4.4.1 Electrical remote RESET
Description For the 3RU11 thermal overload relays, frame sizes S00 to S3, and the
3RB10 electronic overload relays, frame sizes S00 to S10/S12, there is an
electrical remote RESET module that can be used for every frame size. With
this module the overload relay can be electrically reset after tripping once
the recovery time is met. The coil of the module is designed for an operation
duration of 0.2 to 4 seconds. Maintained-contact control is not permissible.
An electrical RESET can be achieved without an accessory with the 3RB12
electronic overload relay (see section 4.3 "Application and use")
Installation/Removal The following graphic shows how the electrical remote RESET is installed
and removed, using the example of the 3RU11 in frame size S00.
Fig. 4-11: Electrical remote RESET, installation/removal
Voltages The electrical remote RESET module is available for the following voltages:
24 to 30 V AC/DC
110 to 127 V AC/DC
220 to 250 V AC/DC
Operational range The operational range of the coil is 0.85 to 1.1 x Us
Current consumption The current consumption of the electrical remote RESET-module is:
AC 80 VA, DC 70 W
Manual RESET The electrical reset can be bypassed by manually pushing the blue reset but-
ton on the electrical remote RESET-module.
Connection The screw connections on terminals E1 and E2 of the electrical remote
RESET module are similar to the screw connections of the auxiliary contacts
of the 3RU11 and 3RB10 overload relays (see section 4.7 "Technical Data").
2
1
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-31
4.4.2 Mechanical thru-the-door reset
For the 3RU11 thermal overload relays, frame sizes S00 to S3, and the
3RB10 electronic overload relays, frame sizes S00 to S10/S12, can also be
remotely reset by mechanical means. For the mechanical remote RESET
there are the two following possibilities:
1 Resetting plunger (same for all frame sizes)
A resetting plunger with a support and funnel 3RU1900-1A for opera-
tion from the enclosure door.
The plunger must be cut to the required length.
2 Cable release (same for all frame sizes)
Cable release with support 3RU1900-1B, -1C for panel layouts that do
not allow for the standard resetting plunger.
The cable comes in the following lengths
400 mm (3RU1900-1B) and
600 mm (3RU1900-1C)
The 3RB12 electronic overload relays don’t have an accessory for mechani-
cal remote RESET.
Resetting plunger
Installation The following graphic shows how to install the resetting plunger, support,
funnel and push button, using the example of the 3RU11 thermal overload
relay, frame size S00:
Fig. 4-12: Mechanical remote RESET: resetting plunger, installation
Removal The following graphic shows the removal of the holder, using the example of
the 3RU11 thermal overload relay:
Fig. 4-13: Mechanical remote reset: resetting plunger, removal
1
2
3SB1
Enclosure door
2
1
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-32 A5E40534713002A/RS-AA/001
Cable release
Installation The following graphic shows the installation of the cable release with
support, using the example of the 3RU11 thermal overload relay in frame
size S00:
Fig. 4-14: Mechanical remote RESET: cable release, installation
Removal The following graphic shows the removal of the support for the cable
release, using the example of the 3RU11 thermal overload relay:
Fig. 4-15: Mechanical remote RESET: cable release, removal
1
25
6
4
3
4
Ø 6.5 mm
≤ 8 mm
2
1
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-33
4.4.3 Other accessories
Sealable cover There is a frame size independent sealable cover for both the 3RB10 and
3RB12 electronic overload relay. In contrast, the 3RU11 thermal overload
relay has a built-in sealable cover.
Adapters for individual
installation
There is an adapter for individual installation for the 3RU11 thermal overload
relay and the 3RB10 electronic overload relay, frame sizes S00 to S3. The
3RB10 overload relays, frame sizes S6 and S10/S12 can be individually
installed without an accessory.
The 3RB12 46 electronic overload relays require the use of push-in lugs for
panel mounting. The 3RB12 53 overload relay can also be snapped onto
75 mm DIN rail, when using the 3UF1900-0JA00 base plate.
Terminal covers For the 3RU11 thermal overload relay, frame sizes S2 and S3, the 3RB10
electronic overload relays, frame sizes S2 to S10/S12 and the 3RB12 53
3RB12 57 and 3RB12 62 electronic overload relays, there are terminal
covers available. The designs and use of the covers can be taken from the
installation instructions.
Box terminal blocks For the 3RB10 electronic overload relay, frame sizes S6 and S10/S12 there
are box terminal blocks for connection to round cables and ribbon cable. The
designs and use of the box terminal blocks can be taken from the installa-
tion instructions.
Summation current
transformer
A summation current transformer for external ground fault detection is
available for the 3RB12 electronic overload relay.
DC power supply For the operation of the externally supplied 3RB12 with a control voltage of
24 V DC on a DC network of 30 V to 264 V the SITOP POWER 24 V/0.375 A,
DC power supply can be used.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-34 A5E40534713002A/RS-AA/001
4.5 Mounting and connection
4.5.1 Mounting
4.5.1.1 3RU11 thermal overload relays and 3RB10 electronic overload relays
Mounting options The 3RU11 thermal overload relays and the 3RB10 electronic overload relays
are electrically and mechanically designed to work in harmony with the 3RT
contactor. For that reason it is possible to directly mount the overload relay
to a contactor. With a separate accessory it is possible to mount the over-
load relay as a stand alone device.
The 3RB10 overload relays can also be used in connection with the
3RW30/31 softstarters. However, the mounting instructions found in
Chapter 8 must be observed.
Direct mounting The following drawing shows an example of a 3RU11 thermal overload relay
in frame size S00 being mounted directly to a 3RT contactor and an example
of a 3RB10 electronic overload relay in frame size S00 being mounted to the
3RW30/31 softstarter.
Fig. 4-16: Mounting to the 3RT contactor/3RW3 softstarter
Important
For the use of the overload relays in connection with the 3RW30/31
softstarters, observe the instructions found in Chapter 8.
1
2
3
1
2
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-35
The following drawing shows the direct mounting of the 3RB10 electronic
overload relays, frame size S6 (3RB105) and S10/S12 (3RB106), to the 3RT
contactors:
Fig. 4-17: Mounting of the 3RB10 electronic overload relays, frame size S6 (3RB105) and S10/S12 (3RB106), to the 3RT contactors
2
RU-01031
1
1
2
3
3
3
3RT19 56-4EA1
3RT19 56-4EA3
3RT19 56-4EA1
3
2
1
3
3
3
RU-01019
3RB10 6 + 3RT1.6
3RB10 6 + 3RT1.7
3RT19 66-4EA1
3RT19 66-4EA3
3RT19 66-4EA1
4
2x
3
3RB10 5 + 3RT1.5
3RB10 5 + 3RT1.5
RU-01033
2
1
3
3RT19 56-4EA1
3RT19 56-4EA2
3RT19 55-4G
3RB10 56-..W
3RB10 55-..W
RU-01032
2
2
1
1
3RT19 56-4EA2
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-36 A5E40534713002A/RS-AA/001
Important
When installing the 3RB10 electronic overload relays, frame size S6, with
the busbar connection pieces, the 3RB10 may not be guided with the nose
of the top of the overload housing in the guides of the contactor. The guides
on the contactor are for the direct mounting of the overload relay 3RB10,
frame size S6 with straight-through current transformer.
To cover the busbar when combining 3RB10 6 and 3RT1.6 or 3RB10 6 and
3RT1.7, use the terminal cover 3RT19 66-4EA3. There is a piece that must be
removed as shown in the figure 4-17.
The following drawing shows the removal of the 3RB10 electronic overload
relay with straight-through current transformer:
Fig. 4-18: Removal of the 3RB10 electronic overload relays, frame size S6 with straight-through
current transformer
The contactor-overload combination, frame sizes S00 to S3 can be snapped
on to 35 mm DIN rail, according to EN 50 022. This is shown in the following
drawing of a combination in frame size 00:
Fig. 4-19: Mounting on 35 mm DIN rail
2
3
1
RU-00964
RU-00200
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-37
For the removal of S00/S0 combinations from the DIN rail, the contactor
must be pushed downward and then swung forward. By contrast, in S2/S3
combinations the overload relay must be removed first and then the contac-
tor needs to be disengaged from the DIN rail with a screw driver (see
description in Chapter 3).
As an alternative to DIN rail mounting, it is possible to screw mount the S00
to S3 combinations. The combinations in the frame sizes S6 to S12, on the
other hand, were designed for screw mounting only. When mounting the
S00 to S12 combinations with screws, the contactor should to be mounted
first and then the overload relay should be mounted to the contactor as in
the drawing on the previous page.
Individual installation The 3RU11 thermal overload relays and the 3RB10 electronic overload relays
frame sizes S00 to S3, can also be used as stand alone units when used
with adapters for individual installation.
The following drawing shows the mounting and removal of the adapter for
individual installation with a 3RU11 thermal overload relay, frame size S2.
Fig. 4-20: Mounting and removal of the adapter for individual installation (S2)
The adapter can be mounted to 35 mm DIN rail according to EN 50 022.
The frame size S3 adapter can also be mounted to 75 mm DIN rail.
It is also possible to panel mount the adapter.
The frame size S6 3RB10 electronic overload relays are suitable for panel
mounting and DIN rail mounting on 35 mm DIN rail - without an additional
adapter.
Adapter for individual installation Frame size for 3RU11 for 3RB10
3RU19 16-3AA01 S00 X X
3RU19 26-3AA01 S0 X X
3RU19 36-3AA01 S2 X X
3RU19 46-3AA01 S3 X X
2
1
3RU19 00-3A
RU-00342
1
2
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-38 A5E40534713002A/RS-AA/001
Fig. 4-21: Mounting to 35 mm DIN rail
The 3RB10 electronic overload relays, frame sizes S10/S12, are designed for
panel mounting.
Fig. 4-22: The panel mounting of the 3RB10 electronic overload relay (S10/S12)
RU-00960
3RT19 56-4EA2
3RT19 55-4G
3RB10 5
3RB10 6
3RT19 66-4G
1
2
2
3
3RT19 66-4EA2
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-39
Mounting position The following drawing shows the permissible mounting position when
mounted to the contactor and for individual installation of the 3RU11 ther-
mal overload relays. If the mounting position falls in the shaded range, the
current setting needs to be adjusted by 10 %.
Fig. 4-23: The permissible mounting of the 3RU11 when mounted to the contactor and for individual
installation
The mounting position of the 3RB10 electronic overload relays is not
restricted.
Minimal clearance A minimal side clearance to grounded parts of > 6.5 mm is required.
NSB01363
135°
0° 22,5° 22,5°
135°
Ie
0°
x 1,1
NSB01364
135°
0° 45°
135°
45°
Iex 1,1
90° 90°
0°
Iex 1,1 Iex 1,1
Contactor with overload relay Overload relay in individual installation
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-40 A5E40534713002A/RS-AA/001
4.5.1.2 3RB12 electronic overload relays
Mounting possibilities The 3RB12 electronic overload relays can be directly connected to 3RT con-
tactors with the exception of the 3RB12 46. Individual installation is possible
with all of the overload relays.
Direct mounting The 3RB12 53 and 3RB12 57 electronic overload relays can be mounted
directly to the 3RT contactor in the manor shown in the following drawing.
Individual installation The 3RB12 46 electronic overload relays can be mounted on 35 mm DIN rail
according to EN 50 022 or directly to a panel with the use of push-in lugs
that are available as an accessory.
The other overload relays are designed for panel mounting with screws. The
3RB12 53 overload relay can also be snapped onto 75 mm DIN rail when
using a base plate accessory.
Mounting position The mounting position of the 3RB12 electronic overload relays is not
restricted.
Minimal clearance A minimal side clearance to grounded parts of > 6.5 mm is required.
3TX7506-0A
3TX7506-0B or
3RT1956-4EA3
3RT1956-4EA1 or
3RT1956-4EA2 (with use of box terminals)
S6 contactor
3RB1253
Overload Relays
Frame Size S6
Additional covers usable
3TX7506-0A
3RT1966-4EA3
3RT1966-4EA1 or
3RT1966-4EA2 (with use of box terminals)
S10/S12 contactor
3RB1257
Overload Relays
Frame Size S10/S12
Additional covers usable
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-41
4.5.2 Connection
3RU11 thermal overload relays and 3RB10 electronic overload relays
Connection options The connections for the main current paths are either screw terminals,
busbars, Cage Clamp terminals or straight-through current transformers
depending on the frame size and model of the device.
The auxiliary circuits have either screw terminals or Cage Clamp terminals,
depending on the frame size and model of the device.
The connection type as well as the type of screw driver/bit width, required
torque and conductor cross-sections (min.; max.) for the individual devices
can be found in section 4.7 "Technical Data".
Straight-through
current transformer
The 3RB10 electronic overload relays in frame size S6 are available with
straight-through current transformer technology. As shown in the picture
below the cables are passed through the straight-through current trans-
former openings and connected directly to the main terminals on the con-
tactor.
Fig. 4-24: 3RB10 electronic overload relay, frame size S6 with straight-through current transformer
technology
Cage Clamp technology For Cage Clamp terminal technology please observe the instructions in
Chapter 1 "System overview".
Coil- and auxiliary con-
tact repeat terminal
When directly mounting the 3RU11 thermal overload relays and the 3RB10
electronic overload relays of frame size S00, the auxiliary contact runs
through the coil terminal A2. This simplifies the wiring.
Protection against
electrical shock
Observe the data in section 4.7 "Technical Data" regarding protection against
electrical shock (according to DIN VDE 0106 part 100) with the 3RU11 ther-
mal overload relays and 3RB10 electronic overload relays.
Possibilities on how to achieve shock protection can be found in the
mounting instructions.
RU-00965
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-42 A5E40534713002A/RS-AA/001
3RB12 electronic overload relays
Connection options The connections for the main current paths are either bar connection or
straight-through current transformer technology, depending on frame size
and device design.
The auxiliary, control, and thermistor sensor circuits have screw terminals.
The connection type as well as the type of screw driver/bit width, required
torque and conductor cross-sections (min.; max.) for the individual devices
can be found in section 4.7 "Technical Data".
Straight-through
current transformer
The 3RB12 46 electronic overload relay is designed with straight-through
current transformer technology. The cables are passed through the straight-
through current transformer openings and are connected directly to the
main terminals on the contactor.
Looping of the cables The 3RB12 46 electronic overload relays with the setting range 1.25 to 6.3 A
can also be used to protect loads with the rated current of 0.25 to 1.25 A.
With these rated currents, IN, every phase must be looped through the
openings in the overload multiple times (n-times). With this multiple looping
through of the cables, calculate the setting current Ie according to the fol-
lowing formula:
Ie = n* IN with n ≤ 5
The following drawing shows the looping through technique:
Fig. 4-25: Looping through technique, 3RB12 46
Protection against
electrical shock
Observe the data in section 4.7 "Technical Data" regarding protection against
electrical shock (according to DIN VDE 0106 part 100) with the 3RB12 elec-
tronic overload relays.
Possibilities on how to achieve shock protection can be found in the
mounting instructions.
L1
1
3
L2 L3
2
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-43
4.5.3 Circuit diagrams
The following diagrams show wiring examples for the 3RU11 thermal
overload relays, the 3RB10 and 3RB12 electronic overload relays:
Protection of DC motors with 3RU11
3RU11
Fig. 4-26: Circuit diagrams 3RU11
General circuit diagrams for 3RU11 and 3RB10
3RU11 and 3RB10
Fig. 4-27: Internal circuit diagrams 3RU11 and 3RB10
3RB10 1 and 3RU11 1
Fig. 4-28: Diagram for thermal 3RU11 1 overload relay and 3RB10 1 electronic overload relay
1-pole 2-pole
NSB00289
462
135
NSB00290
462
135
3RU11 16/3RB10 16 3RU11 26 to 3RU11 46/3RB10 26 to 3RB10 66
95
96
97
98 A2 14/22
NSB00291
4T2 6T32T1
1L1 3L2 5L3
TEST
RESE
T
STOP
95
96
97
98
NSB00292
4T2 6T32T1
1L1 3L2 5L3
TEST
RESE
T
STOP
L1 L2 L3
K1
F2
F1
M1
135
246
135
246
3 ~
M
UVW
A1
A2
N
98
97
96
95
STOP
Re s e t
Test
N
Remot e r ese t
E1 E2
S1
L1
F3
S2
0,2 ... 4 sec.
A2 14/ 22
13
14
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-44 A5E40534713002A/RS-AA/001
3RU11 2 to 3RU11 4 / 3RB10 2 to 3RB10 6
Fig. 4-29: Diagram for 3RU11 2 to 3RU11 4 thermal overload relays and
3RB10 2 to 3RB10 6 electronic overload relays
In single pole loads the 3 main current paths are to be connected in series.
(applies only good for 3RU11).
Warning
When using automatic reset and a maintained contact device for starting,
the motor restarts automatically.
3RB12 electronic overload relays
Fig. 4-30: Wiring diagrams for single-phase motors using 3RB12
Important
The electronic overload relays with integrated ground fault detection
(3RB12..-....2./3RB12..-....3.) are not suitable for single-phase motors.
L1 L2 L3
K1
F2 S1
F1
M1
135
246
135
246
3 ~
M
UVW
A1
A2
N
98
97
96
95
L1
STOP
Reset
Test
S2
N
Fernreset
0,2 ... 4 sec.
F3
E1 E2
Remote reset
L
N
M
1 ~
L1
L2
L3
T1 T2
T3
3RB12
L
N
M
1 ~
L1
L2
L3
T1 T2
T3
3RB12
3RB12 46- ...0., - ... 1 .; 3RB12 53- ...0., - ... 1.
3RB12 57- ...0., - ... 1.
3RB12 62- ...0., - ... 1 .
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-45
3RB12 overload relay, standard design
Fig. 4-31: 3RB12 Overload relay, standard design
NSB00301b
L1
L2
L3
N
3 ~
M
F2 F3 F4
Ground
Fault
CLASS
5, 10, 15, 20, 25, 30
3 RB 12
H1 H1H1
Y1Y2
Y1Y2
Automatic-
Reset
Remote-
Reset
A1
A2
K1E
96 98 06 08642
T1 T2 T3 T1
T2/
C1 Y2 Y1
Ready Ground
Fault
Overload
K1 Overload
K2 Ground
Fault
95 97 05 07
A1A2C2
T2/
C1531
L1 L2 L3
F1 Test/
Reset
531
642
K1E
Z2
Z1
F5
S1A
S1E K1E
3 UL 22
ϑ
ϑ
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-46 A5E40534713002A/RS-AA/001
4.6 Dimensional drawings (dimensions in mm)
3RU11/3RB10/3RB12 overload relays - screw-type terminals
Fig. 4-32: 3RU11 16-..B0. (frame size S00) with accessories
Fig. 4-33: 3RU11 16-..B., 3RB10 16-..B. (frame size S00)
with adapter for stand-alone installation with accessories
Fig. 4-34: 3RU11 26-..B., 3RB10 26-..B. (frame size S0)
with adapter for stand-alone installation
Fig. 4-35: 3RU11 36-..B., 3RB10 36-..B. (frame size S2)
with adapter for stand-alone installation
1) Mechanical RESET
2) Cable release
(400 mm or 600 mm long,
Installation on front or side on the support)
3) Support for RESET
1)
3)
2)
3SB1
NSB00338
46
185
148
3349 68
5
10
244147
61
118
15.5 45
max. 161 max. 8
1) Adapter for remote RESET
45
1)
NSB00339a
5
535
75
4.5
5
68
5
41530
33
52
43
87
38
NSB00340
44 5
535
85
45
4.5
97
50
4.5
44
6
86
62
5
NSB00341a
40 5
5
5.5 44
55
54
105
5.5
95
50
4
5108
51
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-47
Fig. 4-36: 3RU11 46-..B., 3RB10 46-..B. (frame size S3)
with adapter for stand-alone installation
Fig. 4-37: 3RB12 46 Fig. 4-38: 3RB12 5. / 3RB12 62
Overload relay a b c d e f Overload relay a b c d e f g h i j k l m n o p
3RB12 46-1E
3RB12 46-1P
3RB12 46-1Q
15
10
10
29
34
34
24
29
29
47
46
46
—
48
48
—
4
4
3RB12 53-0F
3RB12 57-0K
3RB12 62-0L
120
145
230
85
85
85
155
175
190
110
105
120
40
50
70
∅7
∅9
∅1
42
52
70
37
48
—
125
130
135
41
46
55
20
30
40
131
151
166
7. 2
7. 2
7. 2
13
—
—
145
160
175
4
6
8
NSB00342
1)
59 5
62
5
110
5
560
70 5
7
130
79
57
5
1) Mounting to 35 mm, DIN rail
15 mm deep according to EN 50 022
or 75 mm DIN rail according to EN 50 023
i
d
b
g
hf
a
e
km
c
l
j
n
o
NSB00356a
p
NSB00355
7.2
50
70
100
4.5
Ø
85
100
127.5
5
e
b
a
f
c
d
10
12.514
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-48 A5E40534713002A/RS-AA/001
3RU11 overload relay– Cage Clamp terminals
Fig. 4-39: 3RU11 16-..C1 (frame size S00)
with accessories (same for frame sizes S00 to S3)
Fig. 4-40: 3RU11 26-..D. (frame size S0) with adapter for stand alone installation
Fig. 4-41: 3RU11 36-..D. (frame size S2) with adapter for stand alone installation
Fig. 4-42: 3RU11 46-..D. (frame size S3) with adapter for stand alone installation
1) Mechanical RESET
2) Cable release
400 mm or 600 mm long
Installation on front or side on the support
3) Support
1) Adapter for remote RESET
15.5
35
5
92
4.5
8
68
7.5
5
75
148
4617.5
3)
1)
2)
45
5
28
NSB00343
1)
35
45
592
5
4.5
68
7.5
541
30
5
5
75 42
12
26
NSB00344a
HA
RESETST OP
TEST
01
4.5
97
50
35
45
5
85
5
644
86
44
5
4.5 62
NSB00345
SIEMENS
5.5105
5.5 44
55
95
5
5
450
108
40
5
51
HA
RESETST OP
TEST
01
SIEMENS
54
NSB00346a
5120
62
560
70
110
5
5
557
130
59
5
79
7
HA
RESETST OP
TEST
01
SIEMENS
NSB00347
1)
1) Mounting to 35 mm, DIN rail
15 mm deep according to EN 50 022
or 75 mm DIN rail according to EN 50 023
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-49
4.7 Technical Data
4.7.1 3RU11 thermal overload relays
Ty p e 3RU11 16 3RU11 26 3RU11 36 3RU11 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
General specifications
Tripped at Overload and phase loss
Tripping class In acc. with IEC 60 947-4-1 CLASS 10
Phase loss sensitivity Ye s
Overload warning No
Resetting and recovery
Resetting options after tripping Manual, remote, and automatic resetting 1)
Recovery time With automatic REST min. Depends on the height of the tripping current and the tripping charac-
teristic
With manual RESET min. Depends on the height of the tripping current and the tripping charac-
teristic
With remote RESET min. Depends on the height of the tripping current and the tripping charac-
teristic
Configuration
Indication of operating status on device Yes, by means of the "test function/contact position indicator" slider
TEST function Ye s
RESET button Ye s
STOP button Ye s
For the safe operation of
motors with increased
safety protection
EC special test certificate
number in compliance
with directive 94/9/EC
KEMA test certificate no. EX-97.Y.3235
DMT 98 ATEX G001
Ambient temperatures
Storage/transportation °C -55 to +80
Operation °C -20 to +70
Temperature compensation °C up to 60
Permissible rated current at Internal cubicle temperature of 60 °C % 100 (current reduction is required at above +60 °C)
Internal cubicle temperature of 70 °C % 87
Repetition terminals
Terminal for contactor coil Yes Not required
Auxiliary switch repetition terminal Yes Not required
Degree of protection In acc. with IEC 60 529/DIN VDE 0470
Part 1
IP20 IP202)
Shock protection In acc. with DIN VDE 0106 Part 100 Protected against touching by fingers
Sinus shock resistance In acc. with IEC 68 Part 2-27 g/ms 810
EMC noise immunity
Conducted
disturbance neutralization - burst
In acc. with IEC 61 000-4-4:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Conducted
disturbance neutralization - surge
In acc. with IEC 61 000-4-5:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Electrostatic discharge In acc. with IEC 61 000-4-2:
(corresponds to severity grade 3)
kV EMC noise immunity is not relevant to thermal overload relays
Field-related disturbance neutralization In acc. with IEC 61 000-4-3:
(corresponds to severity grade 3)
V/m EMC noise immunity is not relevant to thermal overload relays
EMC emitted interference EMC noise immunity is not relevant to thermal overload relays
Resistance to extreme climates
(atmospheric humidity)
%100
Site altitude m Up to 2000 above sea level; above on request
Construction type/mounting
Direct
mounting
3
)/
stand-alone instal-
lation with termi-
nal bracket
Direct mounting/stand-alone installation with terminal
bracket
4
)
1) Remote RESET in conjunction with suitable accessories 4) For screw-on and snap-on attachment to 35 mm DIN rail;
2) Terminal compartment: IP00 degree of protection frame size S3 also for 75 mm DIN rail
3) Only stand-alone installation is possible for the 3RU11 16
overload relay with the Cage Clamp terminal system.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-50 A5E40534713002A/RS-AA/001
1) For the connection cross-sections for the Cage Clamp terminal system, see "Connecting the auxiliary circuit".
2) The box terminal can be removed. After the box terminal has been removed, busbar and cable-lug connections are possible.
Ty p e 3RU11 16 3RU11 26 3RU11 36 3RU11 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3) V690 1000
Rated impulse strength Uimp kV 6 8
Rated operating voltageUeV690 1000
Current type Direct current Yes
Alternating current Yes, frequency range up to 400 Hz
Current setting A 0.11 - 0.16 1.8 - 2.5 5.5 - 8 18 - 25
Up to 9 - 12 Up to 20 - 25 Up to 40 - 50 Up to 80 - 100
Power loss per device (max.) W 3.9 to 6.6 3.9 to 6 6 to 9 10 to 16.5
Short-circuit protection With fuse, without contactor
With fuse and contactor
See the selection and ordering data in the catalog
See the technical specifications (short-circuit protection with fuses/
circuit breakers for motor feeders)
Safe isolation between
main and auxiliary conducting paths
In acc. with DIN VDE 0106 Part 101
IEC 60 947-1-A1
V 500 690
Connection of the main circuit
Connection type Screw-type
terminal/
Cage Clamp
terminal1)
Screw-type
terminal Screw-type
terminal with
box terminal
Screw-type
terminal with
box terminal 2)/
bar connection
Screw-type terminal
• Terminal screw Pozidriv 2 Allen screw
4 mm
• Tightening torque Nm 0.8 to 1.2 2 to 2.5 3 to 4.5 4 to 6
• Connection cross-section
(min./max.), 1 or 2 conductors
Single-core mm22 x (0.5 to 1.5)
2 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (1 to 2.5)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
2 x (0.75 to 16)
—
2 x (2.5 to 16)
—
Finely stranded without wire end fer-
rule
mm2—
Finely stranded with wire end ferrule mm22 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 16) 2 x (2.5 to 35)
mm22 x (0.75 to 2.5) 2 x (2.5 to 6) 1 x (0.75 to 25) 1 x (2.5 to 50)
Stranded mm22 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 25) 2 x (10 to 50)
mm22 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
1 x (0.75 to 35) 1 x (10 to 70)
AWG cables, single- or multi-core AWG 2 x (18 to 14) 2 x (14 to 10) 2 x (18 to 3) 2 x (10 to 1/0)
AWG — — 1 x (18 to 1) 2 x (10 to 2/0)
Ribbon cables (number x width x depth) mm — — 2 x (6 x 9 x 0.8) 2 x (6 x 9 x 0.8)
Bar connection
• Terminal screw M 6 x 20
• Tightening torque Nm 4 to 6
• Connection cross-section Finely stranded with cable lug mm2— 2 x 70
(min./max.) Stranded with cable lug mm2— 2 x 70
AWG cables, single-core or stranded
with cable lug
AWG — 2/0
With connecting bars (max. width) mm — 12
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-51
1) Up to IK ≤ 0.5 kA; ≤ 260 V
Ty p e 3RU11 16 3RU11 26 3RU11 36 3RU11 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
Auxiliary circuit
Auxiliary contact elements (number x (variant) 1 x (1 NO contact + 1 NC contact)
Assignment of the auxiliary contact elements 1 NO contact for the "tripped by overload" signal
1 NC contact for switching off the contactor
Rated insulation voltage Ui (pollution degree 3) V 690
Rated impulse strength Uimp kV 6
Contact rating of the auxiliary contact elements
NC contact with alternating current AC-14/AC-15 Rated operational current Ie at Ue:
• 24V A 4
•120V A 4
•125V A 4
• 230 V A 3
•400V A 2
•600V A 0.6
• 690 V A 0.5
NO contact with alternating current AC-14/AC-15 Rated operational current Ie at Ue:
• 24V A 3
•120V A 3
•125V A 3
• 230 V A 2
•400V A 1
•600V A 0.6
• 690 V A 0.5
NC contact, NO contact with direct current DC-13 Rated operational current Ie at Ue:
•24V A 1
• 60 V A On request
• 110 V A 0.22
• 125 V A 0.22
• 220 V A 0.11
Conventional free air thermal current Ith A6
Contact reliability (suitable for PLC; 17 V, 5 mA) yYs
Short-circuit protection
With fuse Performance class gL/gG A 6
rapid A 10
With miniature circuit breaker (C characteristic) A 61)
Safe isolation between auxiliary conducting paths in acc. with
DIN VDE 0106 Part 101
V415
Connection of the auxiliary circuit
Connection type Screw-type terminal or Cage Clamp terminal
Connection characteristics Screw-type terminal Cage Clamp terminal
•Terminal screw Pozidriv 2 —
•Tightening torque Nm 0.8 to 1.2 —
•Connection cross-sections Single-core mm22 x (0.5 to 1.5) 2 x (0.25 to 2.5)
(min./max.) 1 or 2 conductors mm22 x (0.75 to 2.5)
Finely stranded without wire end ferrule mm2— 2 x (0.25 to 2.5)
Finely stranded with wire end ferrule mm22 x (0.5 to 1.5) 2 x (0.25 to 1.5)
mm22 x (0.75 to 2.5)
Stranded mm22 x (0.5 to 1.5) —
mm22 x (0.75 to 2.5)
AWG cables, single- or multi-core AWG 2 x (18 to 14) 2 x (24 to 14)
s, u, U rating data
Auxiliary circuit Switching capacity B600, R300
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-52 A5E40534713002A/RS-AA/001
Short-circuit protection with fuses for motor feeders with short-circuit currents of up to 70 kA at 50/60 Hz 690 VAC
Permissible short-circuit protection for motor starters consisting of an overload relay and a contactor of the coordination type "2"1)
1) Type of coordination and short-circuit protection devices according to IEC 60 947-4-1/DIN VDE 660 Part 102:
Type of coordination 1: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These do not have to be suitable for subsequent operation (without repair and replacement of parts).
Type of coordination 2: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These must be suitable for subsequent operation. There is a risk of welding of the contacts.
2) At max. 415 V.
Frame size S00 UL
fuse
RK5
Circuit breaker for
starter protection at
Iq = 50 kA / 400 V AC
Adjustment range 3 kW 3RT10 15
Ie max = 7 A
(at 50 Hz 400 V AC)
4 kW 3RT10 16
Ie max = 9 A
(at 50 Hz 400 V AC)
5.5 kW 3RT10 17
Ie max = 12 A
(at 50 Hz 400 V AC)
A gL/gG aM BS88T gL/gG aM BS88T gL/gG aM BS88T A
0.11 to 0.16 0.5 — — 0.5 — — 0.5 — — 1 —
0.14 to 0.2 1 — — 1 — — 1 — — 1 3RV1321-0BC10
0.18 to 0.25 1 — — 1 — — 1 — — 1 3RV1321-0CC10
0.22 to 0.32 1.6 — 2 1.6 — 2 1.6 — 2 1 3RV1321-0DC10
0.28 to 0.4 2 — 2 2 — 2 2 — 2 1.6 3RV1321-0EC10
0.35 to 0.5 2 — 2 2 — 2 2 — 2 2 3RV1321-0FC10
0.45 to 0.63 2 — 4 2 — 4 2 — 4 2.5 3RV1321-0GC10
0.55 to 0.8 4 — 4 4 — 4 4 — 4 3 3RV1321-0HC10
0.7 to 1 4 — 6 4 — 6 4 — 6 4 3RV1321-0JC10
0.9 to 1.25 4 — 6 4 — 6 4 — 6 5 3RV1321-0KC10
1.1 to 1. 6 6 — 10 6 — 10 6 — 10 6 3RV 13 2 1- 1 AC 10
1.4 to 2 6—106—106—10 83RV1321-1BC10
1.8 to 2.5 10 — 10 10 — 10 10 — 10 10 —
2.2 to 3.2 10 — 16 10 — 16 10 — 16 12 —
2.8 to 4 16 — 16 16 — 16 16 — 16 16 —
3.5 to 5 20 6 20 20 6 20 20 6 20 20 —
4.5 to 6.3 20 6 20 20 6 20 20 6 20 25 —
5.5 to 8 201020 201020 201020 30 —
7 to 10 20 16 20 20 16 20 40 —
9 to 12 20 16 25 45 —
Frame size S0 UL
fuse
RK5
Circuit breaker for
starter protection at
Iq = 50 kA / 400 V AC
Adjustment range 5.5 kW 3RT10 24
Ie max = 12 A
(at 50 Hz 400 V AC)
7.5 kW 3RT10 25
Ie max = 17 A
(at 50 Hz 400 V AC)
11 kW 3RT10 26
Ie max = 25 A
(at 50 Hz 400 V AC)
A gL/gG aM BS88 gL/gG aM BS88 gL/gG aM BS88 A
1. 8 t o 2 . 5 10 —10 10 —10 10 —10 10 3RV13 21-1CC10
2.2 to 3.2 10 —16 10 —16 10 —16 12 3RV13 21-1DC10
2.8 to 4 16 —16 16 —16 16 —16 16 3RV13 21-1EC10
3.5 to 5 20 6 20 20 6 20 20 6 20 20 3RV13 21-1FC10
4.5 to 6.3 20 6 25 20 6 25 20 6 25 25 3RV13 21-1GC10
5.5 to 8 25 10 25/32 2) 25 10 25/32 2)25 10 25 30 3RV1321-1HC10
7 to 10 25 16 25/32 2) 25 16 25/32 2)32 16 35 40 3RV1321-1JC10
9 to 12.5 25 20 25/32 2) 25 20 25/32 2)352035 45 3RV1321-1KC10
11 to 16 25 20 25/32 2) 25 20 25/32 2)352035 60 3RV1321-4AC10
14 to 20 ——— 25 20 25/32 2)352035 80 3RV1321-4BC10
17 to 22 ——— ——— 35 20 35 80 3RV13 21-4CC10
20 to 25 ——— ——— 35 20 35 100
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-53
Short-circuit protection with fuses for motor feeders with short-circuit currents of up to 50 kA at 50/60 Hz 690 VAC
Permissible short-circuit protection for motor starters consisting of an overload relay and a contactor of the coordination type "2"1
1) Type of coordination and short-circuit protection devices according to IEC 60 947-4-1/DIN VDE 660 Part 102:
Type of coordination 1: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These do not have to be suitable for subsequent operation (without repair and replacement of parts).
Type of coordination 2: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These must be suitable for subsequent operation. There is a risk of welding of the contacts.
Frame size S2 UL
fuse
RK5
Circuit breaker for
starter protection at
Iq = 50 kA / 400 V AC
Adjustment range 15 kW 3RT10 34
Ie max = 32 A
(at 50 Hz 400 V AC)
18.5 kW 3RT10 35
Ie max = 40 A
(at 50 Hz 400 V AC)
22 kW 3RT10 36
Ie max = 50 A
(at 50 Hz 400 V AC)
A gL/gG aM BS88 gL/gG aM BS88 gL/gG aM BS88 A
5.5 to 8 25 10 25 25 10 25 25 10 25 30 —
7 to 10 32 16 32 32 16 32 32 16 32 40 —
9 to 12.5 35 16 35 35 16 35 35 16 35 50 —
11 to 16 40 20 40 40 20 40 40 20 40 60 —
14 to 20 50 25 50 50 25 50 50 25 50 80 —
18 to 25 63 32 63 63 32 63 63 32 63 100 3RV13 31-4DC10
22 to 32 63 35 63 63 35 63 80 35 80 125 3RV13 31-4EC10
28 to 40 63 50 63 63 50 63 80 50 80 150 3RV13 31-4FC10
36 to 45 ——— 63 50 80 80 50 80 175 3RV13 31-4GC10
40 to 50 ——— ——— 80 50 80 200 3RV13 31-4HC10
Frame size S3 UL fuse
RK5 Circuit breaker for
starter protection at
Iq = 50 kA / 400 V AC
Adjustment range 30 kW 3RT10 44
Ie max = 65 A
(at 50 Hz 400 V AC)
37 kW 3RT10 45
Ie max = 80 A
(at 50 Hz 400 V AC)
45 kW 3RT10 46
Ie max = 95 A
(at 50 Hz 400 V AC)
A gL/gG aM BS88 gL/gG aM BS88 gL/gG aM BS88 A
18 to 25 63 32 63 63 32 63 63 32 63 100 —
22 to 32 80 35 80 80 35 80 80 35 80 125 —
28 to 40 80 50 80 80 50 80 80 50 80 150 —
36 to 50 125 50 125 125 50 125 125 50 125 200 —
45 to 63 125 63 125 160 63 160 160 63 160 250 3RV13 41-4JC10
57 to 75 ——— 160 80 160 160 80 160 300 3RV13 41-4KC10
70 to 90 ——— ——— 160 100 160 350 3RV13 41-4LC10
80 to 100 ——— ——— 160 100 160 350 3RV13 41-4MC10
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-54 A5E40534713002A/RS-AA/001
4.7.2 3RB10 electronic overload relays
Ty p e 3RB10 16 3RB10 26 3RB10 36 3RB10 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
General specifications
Tri p p e d a t Overload, phase loss, and phase imbalance
(>40 % in acc. with NEMA)
Tripping class In acc. with IEC 60 947-4-1 CLASS 10 and 20, depending on the variant
Phase loss sensitivity Yes, tripped from a warm state < 3 seconds
Overload warning No
Resetting and recovery
Resetting options after tripping Manual, remote, and automatic resetting 1)
Recovery time With automatic RESET min. Approx. 4
With manual RESET min. Immediate
With remote RESET min. Immediate
Configuration
Indication of operating status on device Yes, by means of the "test function/contact position indicator" slider
TEST function yes
RESET button yes
STOP button yes
For the safe operation of
motors with increased
safety protection
EC special test certificate
number in compliance
with directive 94/9/EC
On request
Ambient temperatures
Storage/transportation °C -55 to +80
Operation °C -20 to +70
Temperature compensation °C Up to 70
Permissible rated current at Internal cubicle temperature of 60 °C % 100 (current reduction is required at above +60 °C)
Internal cubicle temperature of 70 °C % 100 (current reduction is required at above +60 °C)
Repetition terminals
Terminal for contactor coil Yes Not required
Auxiliary switch repetition terminal Yes Not required
Degree of protection In acc. with IEC 60 529/DIN VDE 0470
Part 1
IP20 IP202)
Shock protection In acc. with DIN VDE 0106 Part 100 Protected against touching by fingers
Sinus shock resistance In acc. with IEC 68 Part 2-27 g/ms 8/10 and 15/11
EMC noise immunity
Conducted
disturbance neutralization - burst
In acc. with IEC 61 000-4-4:
(corresponds to severity grade 3)
kV 2
Conducted
disturbance neutralization - surge
In acc. with IEC 61 000-4-5:
(corresponds to severity grade 3)
kV 2/1 (line to ground/line to line)
Electrostatic discharge In acc. with IEC 61 000-4-2:
(corresponds to severity grade 3)
kV 6/8 (contact/air discharge)
Field-related disturbance neutralization In acc. with IEC 61 000-4-3:
(corresponds to severity grade 3)
V/m 3 103)10
EMC emitted interference Limit value class B in acc. with CISPR 11
Resistance to extreme climates
(atmospheric humidity)
%100
Dimensions See dimensional drawings
Site altitude m Up to 2000 above sea level
Installation position Any
Construction type/mounting
Direct mounting/stand-alone installation with terminal bracket
4
)
1) Remote RESET in conjunction with suitable accessories 4) For screw-on and snap-on attachment to 35 mm DIN rail;
2) Terminal compartment: IP00 degree of protection frame size S3 also for 75 mm DIN rail
3) For the setting ranges 0.1 to 0.4 A, 0.4 to 1.6 A, and 1.5 to 6 A,
it is 3 V/m.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-55
1) The box terminal can be removed. After the box terminal has been removed, busbar and cable-lug connections are possible.
Ty p e 3RB10 16 3RB10 26 3RB10 36 3RB10 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3) V 690 1000
Rated impulse strength Uimp kV 6 8
Rated operating voltageUeV 690 1000
Current type Direct current No
Alternating current Yes, 50/60 Hz ± 3 (other frequencies on request)
Current setting A 0.1 - 0.4 0.1 - 0.4 6 - 25 13 - 50
Up to 3 - 12 Up to 6 - 25 Up to 13 - 50 Up to 25 - 100
Power loss per device (max.) W Approximately
0.5
Short-circuit protection With fuse, without contactor
With fuse and contactor
See the selection and ordering data in the catalog
See the technical specifications (short-circuit protection with fuses
for motor feeders)
Safe isolation between
main and auxiliary conducting paths
In acc. with DIN VDE 0106 Part 101
IEC 60 947-1-A1
V On request
Connection of the main circuit
Connection type Screw-type terminal Screw-type
terminal with
box terminal
Screw-type ter-
minal with box
terminal 1)/bar
connection
Screw-type terminal
•Terminal screw Pozidriv 2 Allen screw
4 mm
•Tightening torque Nm 0.8 to 1.2 2 to 2.5 3 to 4.5 4 to 6
•Connection cross-sections
(min./max.), 1 or 2 conductors
Single-core mm22 x (0.5 to 1.5)
2 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (1 to 2.5)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
2 x (0.75 to 16)
—
2 x (2.5 to 16)
-
Finely stranded without wire end ferrule mm2—
Finely stranded with wire end ferrule mm22 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 16) 2 x (2.5 to 35)
mm22 x (0.75 to 2.5) 2 x (2.5 to 6) 1 x (0.75 to 25) 1 x (2.5 to 50)
Stranded mm22 x (0.5 to 1.5) 2 x (1 to 2.5) 2 x (0.75 to 25) 2 x (10 to 50)
mm22 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
1 x (0.75 to 35) 1 x (10 to 70)
AWG cables, single- or multi-core AWG 2 x (18 to 14) 2 x (14 to 10) 2 x (18 to 3) 2 x (10 to 1/0)
AWG — — 1 x (18 to 1) 2 x (10 to 2/0)
Ribbon cables (number x width x depth) mm — — 2 x (6 x 9 x 0.8) 2 x (6 x 9 x 0.8)
Bar connection
•Terminal screw M 6 x 20
•Tightening torque Nm 4 to 6
•Connection cross-section Finely stranded with cable lug mm2—2 x 70
(min./max.) Stranded with cable lug mm2—2 x 70
AWG cables, single-core or stranded
with cable lug
AWG — 2/0
With connecting bars (max. width) mm — 12
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-56 A5E40534713002A/RS-AA/001
Ty p e 3RB10 56 3RB10 66
Frame size S6 S10/S12
Width 120 mm 145 mm
General specifications
Tri p p e d a t overload, phase loss and phase imbalance
(>40 % according to NEMA)
Tripping class In acc. with IEC 60 947-4-1 CLASS 10 and 20, depending on the model
Phase loss sensitivity Yes, tripped from a warm state < 3 seconds
Overload warning No
Resetting and recovery
Resetting options after tripping Manual, remote, and automatic resetting1)
Recovery time With automatic RESET min Approx. 7
With manual RESET min Immediate
With remote RESET min Immediate
Configuration
Indication of operating status on device Yes, by means of the "test function/contact position indicator" slider
TEST function Ye s
RESET button Ye s
STOP button Ye s
For the safe operation of
motors with increased
safety protection
EC special test certificate
number in compliance
with directive 94/9/EC
PTB 01 ATEX 3203 PTB 01 ATEX 3316
Ambient temperatures
Storage/transportation °C –55 to +80
Operation °C –25 to +70
Temperature compensation °C see description
Permissible rated current at Internal cubicle temperature of 60 °C % see description
Internal cubicle temperature of 70 °C % see description
Repetition terminals
Terminal for contactor coil Not required
Auxiliary switch repetition terminal Not required
Degree of protection In acc. with IEC 60 529/DIN VDE 0470
Part 1
IP202)
Shock protection In acc. with DIN VDE 0106 Part 100 Touch safe with cover
Sinus shock resistance In acc. with IEC 68 Part 2-27 g/ms 8/10 and 15/11
EMC noise immunity
Conducted
disturbance neutralization - burst
In acc. with IEC 61 000-4-4:
(corresponds to severity grade 3)
kV 2
Conducted
disturbance neutralization - surge
In acc. with IEC 61 000-4-5:
(corresponds to severity grade 3)
kV 2/1 (line to earth/line to line)
Electrostatic discharge In acc. with IEC 61 000-4-2:
(corresponds to severity grade 3)
kV 6/8 (contact/air discharge)
Field-related disturbance neutralization In acc. with IEC 61 000-4-3:
(corresponds to severity grade 3)
V/m 10
EMC emitted interference Limit value class B in acc. with CISPR 11
Resistance to extreme climates
(atmospheric humidity)
%100
Dimensions See dimensional drawings
Site altitude m Up to 2000 above sea level
Installation position Any
Construction type/mounting
Direct mounting/stand-alone installation with terminal bracket
3
)
1) Remote reset in conjunction with suitable accessories. 3) For screw-on and snap-on attachment to 35 mm DIN rail
2) Terminals: IP00 degree of protection. (with S10/S12 DIN rail mounting not possible).
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-57
Ty p e 3RB10 56 3RB10 66
Frame size S6 S10/S12
Width 120 mm 145 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3) V1000
Rated impulse strength Uimp kV 8
Rated operating voltageUeV1000
Current type Direct current No
Alternating current YES, 50/60 Hz ± 3 (other frequencies upon request)
Current setting A 50 - 200 55 - 250
to 300 - 630
Power loss per device (max.) W Approx. 0.05
Short-circuit protection With fuse, without contactor
With fuse and contactor
See the selection and ordering data in the catalog
See the technical specifications (short-circuit protection with fuses/
circuit breakers for motor feeders)
Safe isolation between
main and auxiliary conducting paths
Acc. with IEC 60 947-1
DIN VDE 0106 part 101
V1000
Connection of the main circuit
Connection type Screw-type terminal with box
terminal 1)/bar connection
Screw-type terminal
with box termina
Schraubanschluss
•Terminal screw Allen screw
4mm
Allen screw
5mm
•Tightening torque Nm 10 to 12 20 to 22
•Connection cross-section
(min./max.), 1 or 2 conductors
Single-core mm2—
Finely stranded without wire end ferrule mm2with box terminals 3RT19 55-4G
2 x (1 x max. 50, 1 x max. 70)
1 x (10 to 70)
2 x (50 to 185)
front clamping point only:
1 x (70 to 240)
with box terminals 3RT19 56-4G
2 x (1 x max. 95, 1 x max. 120)
1x(10 to 120)
rear clamping point only:
1 x (120 to 185)
Finely stranded with wire end ferrule mm2with box terminals 3RT19 55-4G
2 x (1 x max. 50, 1 x max. 70)
1 x (10 to 70)
2 x (50 to 185)
front clamping point only:
1 x (70 to 240)
with box terminals 3RT19 56-4G
2 x (1 x max. 95, 1 x max. 120)
1x(10 to 120)
rear clamping point only:
1 x (120 to 185)
Stranded mm2with box terminals 3RT19 55-4G
2 x (max. 70)
1x(16 to 70)
2 x (70 to 240)
front clamping point only:
1 x (95 to 300)
with box terminals 3RT19 56-4G
2 x (max. 120)
1 x (16 to 120)
rear clamping point only:
1 x (120 to 240)
AWG cables, single- or multi-core AWG with box terminals 3RT19 55-4G
2 x (max. 1/0)
1 x (6 to 2/0)
2x(2/0 to 500kcmil)
front clamping point only:
1x(3/0 to 600kcmil)
AWG with box terminals 3RT19 56-4G
2 x (max. 3/0)
1x(6 to 250kcmil)
rear clamping point only:
1 x (250 kcmil to 500 kcmil)
Ribbon cables (number x width x depth) mm with box terminals 3RT19 55-4G
2x(6x15.5x0.8)
1 x (3 x 9 x 0.8 to 6 x 15.5 x 0.8)
2x(20x24x0.5)
1 x (6 x 9 x 0.8 to 20 x 24 x 0.5)
with box terminals 3RT19 56-4G
2x(10x15.5x0.8)
1 x (3 x 9 x 0.8 to 10 x 15.5 x 0.8)
rear clamping point only:
1 x (250 kcmil to 500 kcmil)
Bar connection
•Terminal screw M8x25 M 10x30
•Tightening torque Nm 10 to 14 14 to 24
•Connection cross-section Finely stranded with cable lug mm216 to 952)50 to 240
3)
(min./max.) Stranded with cable lug mm225 to1202)70 to 240
3)2 x 70
AWG cables, single-core or stranded
with cable lug
AWG 4 to 250 kcmil 2/0 to 500 kcmil
With connecting bars (max. width) mm 17 25
1) Screw connection is possible using the appropriate box terminals from the
accessories range.
2) When connecting cable lugs acc. to DIN 46 235 with conductor cross-sections of
95 mm2 and above, the 3RT19 56-4EA1 terminal cover is required to maintain the
phase spacing.
3) When connecting cable lugs acc. to DIN 46 234 with conductor
cross-sections of 240 mm2 and above, as well as DIN 46 235 with
conductor cross-sections of 185 mm2 and above, the 3RT19 66-
4EA1 terminal cover is required to maintain the phase spacing.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-58 A5E40534713002A/RS-AA/001
1) Up to IK ≤ 0.5 kA; ≤ 260 V
Ty p e 3RB10 16 3RB10 26 3RB10 36 3RB10 46
Frame size S00 S0 S2 S3
Width 45 mm 45 mm 55 mm 70 mm
Auxiliary circuit
Auxiliary contact elements (number x (variant) 1 x (1 NO contact + 1 NC contact)
Assignment of the auxiliary contact elements 1 NO contact for the "tripped by overload" signal
1 NC contact for switching off the contactor
Rated insulation voltage Ui (pollution degree 3) V690
Rated impulse strength Uimp kV 6
Contact rating of the auxiliary contact elements
NC contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 4
•120V A 4
•125V A 4
• 230 V A 3
•400V A 2
•600V A 1
• 690 V A 1
NO contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 4
•120V A 4
•125V A 4
• 230 V A 3
•400V A 2
•600V A 1
• 690 V A 1
NC contact, NO contact with direct current
DC-13
Rated operational current Ie at Ue:
•24V A 1
•60V A 0.22
•110V A 0.22
• 125 V A 0.22
• 220 V A 0.11
Conventional free air thermal current Ith A6
Contact reliability (suitable for PLC; 17 V, 5 mA) Yes
Short-circuit protection
With fuse Performance class gL/gG A 6
rapid A 10
With miniature circuit breaker (C characteristic) A 61)
Safe isolation between auxiliary conducting paths in acc. with DIN VDE 0106 Part 101 V 300
Connection of the auxiliary circuit
Connection type Screw-type terminal
Connection characteristics
•Terminal screw Pozidriv 2
•Tightening torque Nm 0.8 to 1.2
•Connection cross-sections Single-core mm22 x (0.5 to 1.5)
(min./max.) 1 or 2 conductors mm22 x (0.75 to
2.5)
Finely stranded without wire end ferrule mm2—
Finely stranded with wire end ferrule mm22 x (0.5 to 1.5)
mm22 x (0.75 to
2.5)
Stranded mm22 x (0.5 to 1.5)
mm22 x (0.75 to
2.5)
AWG cables, single- or multi-core AWG 2 x (18 to 14)
s, u, U rating data
Auxiliary circuit Switching capacity B600, R300
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-59
1) From 60 °C upwards, the conventional thermal current Ith across the auxiliary contacts is 2 A.
2) Up to Ik ≤ 0.5 kA; ≤ 260 V.
Ty p e 3RB10 56 3RB10 66
Frame size S6 S10/S12
Width 120 mm 145 mm
Auxiliary circuit
Auxiliary contact elements (number x (model) 1 x (1 NO contact + 1 NC contact)
Assignment of the auxiliary contact elements 1 NO contact for the "tripped by overload" signal
1 NC contact for switching off the contactor
Rated insulation voltage Ui (pollution degree 3) V690
Rated impulse strength Uimp kV 6
Contact rating of the auxiliary contact elements
NC contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 4
•120V A 4
•125V A 4
•230V A 3
•400V A 2
•600V A 1
•690V A 1
NO contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 4
•120V A 4
•125V A 4
•230V A 3
•400V A 2
•600V A 1
•690V A 1
NC contact, NO contact with direct current
DC-13
Rated operational current Ie at Ue:
•24V A 1
•60V A 0.22
• 110 V A 0.22
• 125 V A 0.22
• 220 V A 0.11
Conventional free air thermal current Ith A6
1)
Contact reliability (suitable for PLC; 17 V, 5 mA) Yes
Short-circuit protection
With fuse Performance class gL/gG A 6
rapid A 10
With miniature circuit breaker (C characteristic) A 62)
Safe isolation between auxiliary conducting paths in acc. with DIN VDE 0106 Part 101 V 300
Connection of the auxiliary circuit
Connection type Screw-type terminal
Connection characteristics
•Terminal screw Pozidriv size 2
•Tightening torque Nm 0.8 to 1.2
•Connection cross-sections Single-core mm22 x (0.5 to 1.5)
(min./max.) 1 or 2 conductors mm22 x (0.75 to 2.5)
Finely stranded without wire end ferrule mm2—
Finely stranded with wire end ferrule mm22 x (0.5 to 1.5)
mm22 x (0.75 to 2.5)
Stranded mm22 x (0.5 to 1.5)
mm22 x (0.75 to 2.5)
AWG cables, single- or multi-core AWG 2 x (18 to 14)
s, u, U rating data
Auxiliary circuit Switching capacity B600, R300
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-60 A5E40534713002A/RS-AA/001
Short-circuit protection with fuses for motor feeders with short-circuit currents of up to 50 kA at 690 VAC
1) Please note the operating voltage.
2) Assignment and short-circuit facilities in acc. with IEC 60 947-4-1/DIN VDE 660 Part 102
Coordination type "1": Contactors or starters must not endanger people or the system in the event of a short circuit. They do not have to be suitable for
further operation without repair and part replacement.
Coordination type "2": Contactors or starters must not endanger people or the system in the event of a short circuit and must be suitable for further use.
There is a danger of contact welding.
3) Mounting on the contactor is possible after removal of the box terminal block.
4) Mounting on the contactor is possible.
690 V 415 V 600 V
Overload relay Contactor CLASS Fuse links1)
Adjustment range 10 20 NH Type 3NA NH British
Rated operating current Ie DIAZED Type 5SB Type 3ND Standard
AC-3 in A at NEOZED Type 5SE Fuses
Performance class gL/gG
Coordination type2)
aM BS88,
Type T
Type Type 400 V 500 V 690 V 400 V 500 V 690 V "1" "2" "2" "1" "2"
Frame size S00
0.1 A to 0.4 A 3RT10 153) 0.4 0.4 0.4 0.4 0.4 0.4 25 2 25 2
3RB10 16
0.4 A to 1.6 A 3RT10 153) 1.6 1.6 1.6 1.6 1.6 1.6 25 6 35 6
3RB10 16
1.5 A to 6 A 3RT10 153) 6 5 4 6 5 4 35 20 35 20
3RB10 16 3RT10 173) 6 6 6 6 6 6 35 20 35 20
3 A to 12 A 3RT10 173) 12 9 6.3 10 6 6.3 35 20 35 25
3RB10 16
Frame size S0
0.1 A to 0.4 A 3RT10 243) 0.4 0.4 0.4 0.4 0.4 0.4 63 2 63 2
0.4A to 1.6A 3RT1024
3) 1.6 1.6 1.6 1.6 1.6 1.6 63 6 63 6
1.5 A to 6 A 3RT10 243) 6 6 6 6 6 6 63 25 20 63 25
3A to 12A 3RT1024
3)121212121212 63 25 20 63 25
3RB10 26
6 A to 25 A 3RT10 243)121212121212 63 25 20 63 25
3RB10 26 3RT10 253)171713161613 63 25 20 63 25
3RT10 263) 25 18 13 16 16 13 100 35 20 63 25
Frame size S2
6 A to 25 A 3RT10 343)252525222222125 63 50 125 63
3RB10 36 3RT10 353)252525252525125 63 50 125 63
13 A to 50 A 3RT10 343)323231222222125 63 50 125 63
3RB10 36 3RT10 353)404040292929125 63 50 125 80
3RT10 363)505040323233160 80 50 125 80
Frame size S3
13 A to 50 A 3RT10 443) 50 50 50 49 49 49 250 100 63 250 100
3RB10 46 3RT10 453) 50 50 50 50 50 50 250 100 80 250 100
25 A to 100 A 3RT10 443) 65 65 57 49 49 49 250 125 63 250 125
3RB10 46 3RT10 453) 80 80 80 53 53 53 250 160 80 250 160
3RT10 463) 95 95 95 59 59 59 250 160 100 250 160
Overload relay Contactor CLASS Fuse links1)
Adjustment range 10 20 NH Type 3NA NH British
Frame size S6
50 A to 200 A 3RT10 54 4) 115 115 115 81.7 82 82 355 315 160 250 450
3RB10 56 3RT10 55 4) 150 150 150 107 107 107 355 315 200 315 500
3RT10 56 4) 185 185 170 131 131 131 355 315 200 315 500
Frame size S10/S12
55 A to 250 A 3RT10 64 4) 225 225 225 160 160 160 500 400 250 —700
3RB10 66 3RT10 65 4) 250 250 265 188 188 188 500 400 315 —800
3RT10 66 4) 250 250 280 213 213 213 500 400 315 —800
200 A to 540 A 3RT10 65 4) 265 265 265 188 188 188 500 400 315 —800
3RB10 66 3RT10 66 4) 300 300 280 213 213 213 500 400 315 —800
3RT10 75 4) 400 400 400 284 284 284 630 400 400 —1000
3RT10 76 4) 500 500 450 355 355 355 630 500 500 —1200
3RT12 64 4) 225 225 225 225 225 225 500 500 400 —800
3RT12 65 4) 265 265 265 265 265 265 500 500 400 —800
3RT12 66 4) 300 300 300 300 300 300 500 500 400 —800
3RT12 75 4) 400 400 400 400 400 400 800 800 630 —1200
3RT12 76 4) 500 500 500 500 500 500 800 800 630 —1200
300 A to 630 A 3TF68 630 630 630 440 440 440 800 500 630 500 1200
3RB10 66 3TF69 630 630 630 572 572 572 800 630 630 630 1200
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-61
4.7.3 3RB12 electronic overload relays
Ty p e 3RB12 46 3RB12 53 3RB12 57 3RB12 62
Width 70 mm 120 mm 145 mm 230 mm
General specifications
Tripped at Overload, phase loss, phase imbalance (>40 % in acc. with NEMA),
ground fault, and operation of thermistor motor protection1)
Tripping class In acc. with IEC 60 947-4-1 CLASS 5, 10, 15, 20, 25, and 30; adjustable by means of a 6-way rotary
switch
Phase loss sensitivity Ye s
Overload warning Yes, as of 1.5 x Ie given a symmetric load, and as of 0.85 x Ie given an
asymmetric load
Resetting and recovery
Resetting options after tripping Manual, remote, and automatic resetting 1)
Recovery time With automatic RESET min. When tripped by overcurrent: 5 (stored permanently)
When tripped by thermistor: time until the motor temperature 5K
sinks under the operating temperature
When tripped by ground fault: no automatic reset
With manual RESET min. When tripped by overcurrent: 5 (stored permanently)
When tripped by thermistor: time until the motor temperature 5K
sinks under the operating temperature
When tripped by ground fault: immediate
With remote RESET min. When tripped by overcurrent: 5 (stored permanently)
When tripped by thermistor: time until the motor temperature 5K
sinks under the operating temperature
When tripped by ground fault: immediate
Configuration
Indication of operating status on device Yes, with 3 LEDs; green "Ready" LED, red "Overload" LED, and red
"Ground fault" LED 2)
TEST function Yes, with combined TEST/RESET button 2)
RESET button Yes, with combined TEST/RESET button 2)
STOP button Yes, with combined TEST/RESET button 2)
For the safe operation of motors with
increased safety protection
EC special test certificate number in
compliance with directive 94/9/EC
PTB 01 ATEX 3220
Ambient temperatures
Storage/transportation °C -40 to +80
Operation °C -25 to +70
Temperature compensation °C Up to 70
Permissible rated current at Internal cubicle temperature of 60 °C % 100 (current reduction is not required at above +60 °C)
Internal cubicle temperature of 70 °C % 100 (current reduction is not required at above +60 °C)
Repetition terminals
Terminal for contactor coil Not required
Auxiliary switch repetition terminal Not required
Degree of protection In acc. with IEC 60 529/DIN VDE 0470
Part 1
IP20 (≤ 100 A max. set current Ie
IP00 (≤ 100 A max. set current Ie
Shock protection In acc. with DIN VDE 0106 Part 100 Protected
against finger
touch
Protected against finger touch with cover
Sinus shock resistance In acc. with IEC 68 Part 2-27 g/ms 15/11
EMC noise immunity
Conducted
disturbance neutralization - burst
In acc. with IEC 61 000-4-4:
(corresponds to severity grade 3)
kV 2
Conducted
disturbance neutralization - surge
In acc. with IEC 61 000-4-5:
(corresponds to severity grade 3)
kV 2
Electrostatic discharge In acc. with IEC 61 000-4-2:
(corresponds to severity grade 3)
kV 8
Field-related disturbance neutralization In acc. with IEC 61 000-4-3:
(corresponds to severity grade 3)
V/m 10
EMC emitted interference Limit value class B in acc. with EN 55 011
Resistance to extreme climates (atmospheric humidity) %100
Dimensions See dimensional drawings
Site altitude m Up to 2000 above sea level
Construction type/mounting
Stand-alone
installation
3
)
Direct mounting/stand-alone installation without
additional terminal bracket
4
)
1) Tripped at ground fault only in the case of devices with the order number suf-
fixes 20 and 30 or in conjunction with the external summation current transformer
3) Snap-on attachment to 35 mm rail or screw-on attachment with
accessories
2) For a detailed explanation, see Section 4.2, "Applications and use". 4) For screw-on attachment
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-62 A5E40534713002A/RS-AA/001
Ty p e 3RB12 46 3RB12 53 3RB12 57 3RB12 62
Width 70 mm 120 mm 145 mm 230 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3) V 690 (for bare/
non insulated
conductors)
1000 (for insu-
lated conduc-
tors)
1000
Rated impulse strength Uimp kV 6 8
Rated operating voltage UeV 690 1000
Current type Direct current No
Alternating current Yes, 50/60 Hz
Current setting A 1.25 - 6.3 50 - 205 125 - 500 200 - 820
Up to 25 - 100
Power loss per device (max.) WApprox. 2
Short-circuit protection With fuse, without contactor
With fuse and contactor
See the selection and ordering data in the catalog
See the technical specifications
(short-circuit protection with fuses for motor feeders)
Safe isolation between
main and auxiliary conducting paths
In acc. with DIN VDE 0106 Part 101
IEC 60 947-1-A1
V Up to 690 V
(using main cir-
cuit cables with
an impulse with-
stand voltage of
6kV)
Up to 690
Connection of the main circuit
Connection type Bar-type
transformer
connection
Bar connection
Screw-type terminal
• Terminal screw —
• Tightening torque Nm —
• Connection cross-section
(min./max.), 1 or 2 conductors
Single-core mm2—
Finely stranded without wire end ferrule mm2—
Finely stranded with wire end ferrule mm2—
mm2—
Stranded mm2—
mm2—
AWG cables, single- or multi-core AWG —
AWG —
Ribbon cables (number x width x depth) mm —
Bar connection
• Terminal screw — M8 M10 M 10 or M 12
• Tightening torque Nm — 10 to 14 14 to 24 14 to 24
(with M10)
20 to 25
(with M12)
• Connection cross-section Finely stranded with cable lug mm2— 35 to 95 50 to 240
(min./max.) Stranded with cable lug mm2— 50 to 120 70 to 240 185 to 240
AWG cables, single-core or stranded
with cable lug
AWG — 1/0 to 250 kcmil 2/0 to 500 kcmil 2/0 to 500 kcmil
With connecting bars (max. width) mm — 20 x 4 30 x 6 40 x 8
Bar-type transformer connection
• Opening diameter mm 10 (devices
≤25 A max. set
current Ie)
15 (devices with
max. 100 A set
current Ie)
—
• Conductor cross-section NYY mm2——
H07RN-F 10/16 —
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-63
Ty p e 3RB12 46 3RB12 53 3RB12 57 3RB12 62
Width 70 mm 120 mm 145 mm 230 mm
Auxiliary circuit
Auxiliary contact elements: number x (variant) 2 x (1 NO contact + 1 NC contact)
Assignment of the auxiliary contact elements 1 NO contact for the "tripped by overload and/or thermistor" signal
1 NC contact for tripping the contactor
1 NO contact for the "tripped by ground fault" signal
1 NC contact for tripping the contactor
Or1)
1 NO contact for the "tripped by overload and/or thermistor and/or
ground fault" signal
1 NC contact for switching off the contactor
1 NO contact for the "tripped by ground fault" signal
1 NC contact for tripping the contactor
Rated insulation voltage Ui (pollution degree 3) V300
Rated impulse strength Uimp kV 4
Contact rating of the auxiliary contact elements
NC contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 6
•120V A 6
•125V A 2)
• 230 V A 3
•400V A 1.5
•600V A 2)
• 690 V A 2)
NO contact with alternating current
AC-14/AC-15
Rated operational current Ie at Ue:
• 24V A 6
•120V A 6
•125V A 2)
• 230 V A 3
•400V A 1.5
•600V A 2)
• 690 V A 2)
NC contact, NO contact with direct
current DC-13
Rated operational current Ie at Ue:
•24V A 2
•60V A 0.55
• 110 V A 0.25
• 125 V A 0.25
• 220 V A 0.14
Conventional free air thermal current Ith A6
Contact reliability (suitable for PLC; 17 V, 5 mA) 2)
Short-circuit protection
With fuse Performance class gL/gG A 6
rapid A 10
With miniature circuit breaker (C characteristic) A 1.63)
Safe isolation between auxiliary conducting paths
in acc. with DIN VDE 0106 Part 101
V300
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-64 A5E40534713002A/RS-AA/001
1) The assignment of the auxiliary contact elements depends on the order number suffix
2) On request
3) Up to IK ≤ 1000 A
Connection of the auxiliary circuit
Connection type Screw-type terminal
Connection characteristics
•Terminal screw Pozidriv 2
•Tightening torque Nm 0.8 to 1.2
•Connection cross-sections Single-core mm21 x (0.5 to 4)
(min./max.) 1 or 2 conductors mm22 x (0.5 to 2.5)
Finely stranded without wire end ferrule mm21 x (0.5 to 2.5)
mm22 x (0.5 to 1.5)
Finely stranded with wire end ferrule mm21 x (0.5 to 2.5)
mm22 x (0.5 to 1.5)
Stranded mm2—
AWG cables, single- or multi-core AWG Without wire end ferrule:
2 x (20 to 14)
1 x (20 to 12)
With wire end ferrule:
2 x (20 to 15)
1 x (20 to 14)
s, u, U rating data
Auxiliary circuit Switching capacity B600, R300
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 4-65
Short-circuit protection with fuses for motor feeders for short-circuit currents of up to 50 kA at 690 V for 3RB12 and 3UF50
Overload relay Contactor CLASS 690 V 415 V 600 V
Overload relay Contactor CLASS Fuse links1)
Adjustment range 5 and 10 15 20 25 30 NH Type 3NA NH British UL
-listed
Rated operating current IeDIAZED Type 5SB Type 3ND standards fuses
AC-3 in A at NEOZED Type 5SE fuses
Performance class gL (gG) aM BS88 RK5
Coordination type 2)Type T
(Type) 400
V500
V690 V 400
V500
V690 V 400
V500
V690 V 400
V500
V690 V 400
V500
V690 V 1222
1.25 - 6.3 A
3RB1246-1P 3RT1015 6.3 5 4 6.3 5 4 6.3 5 4 6.3 5 4 6.3 5 4 35 20 — 20 25
3RT1016 6.3 6.3 5.2 6.3 6.3 5.2 6.3 6.3 5.2 6.3 6.3 5.2 6.3 6.3 5.2 35 20 — 20 25
3RT1017 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 35 20 — 20 25
6.3 - 25 A
3RB1246-1Q 3RT1015 7 — — 7 — — 7 — — 7 — — 7 — — 35 20 — 20 60
3RT1016 9 6.5 — 9 6.5 — 9 6.5 — 9 6.5 — 9 6.5 — 35 20 — 20 60
3RT1017 12 9 6.3 11 9 6.3 10 9 6.3 9.5 9 6.3 9 9 6.3 35 20 — 20 60
3RT1024 12 12 9 12 12 9 12 12 9 12 12 9 12 12 9 63 25 20 25 70
3RT1025 17 17 13 17 17 13 16 16 13 15 15 13 14 14 13 63 25 20 25 70
3RT1026 25 18 13 18 18 13 16 16 13 15 15 13 14 14 13 100 25 20 25 100
3RT1034 25 25 25 25 25 25 22.3 22.3 22.3 20.3 20.3 20.3 19.1 19.1 19.1 125 63 50 63 100
3RT1035 — — — — — — 25 25 25 25 25 25 25 25 25 125 63 50 63 100
25 - 100 A
3RB1246-1E 3RT1034 32 32 — 25 25 — — — — — — — — — — 125 63 50 63 125
3RT1035 40 40 — 33 33 — 29 29 – 28 28 — 26 26 125 63 50 63 150
3RT1036 50 50 — 38 38 — 32 32 – 29 29 — 26 26 — 160 80 50 80 200
3RT1044 65 65 47 56 56 47 49 49 47 45 45 45 41 41 41 250 125 63 125 250
3RT1045 80 80 58 61 61 58 53 53 58 47 47 47 45 45 45 250 160 80 160 250
3RT1046 95 95 58 69 69 58 59 59 58 53 53 53 50 50 50 250 160 100 160 350
50 - 205 A
3RB1253-0F 3RT1054 115 115 115 93 93 93 81 81 81 74 74 74 69 69 69 355 315 160 250 450
3RT1055 150 150 150 121 121 121 106 106 106 97 97 97 90 90 90 355 315 200 315 500
3RT1056 185 185 185 149 149 149 131 131 131 120 120 120 111 111 111 355 315 200 315 500
125 - 500 A
3RB1257-0K 3RT1064 225 225 225 182 182 182 159 159 159 146 146 146 135 135 135 500 400 250 — 700
3RT1065 265 265 265 214 214 214 188 188 188 172 172 172 159 159 159 500 400 315 — 800
3RT1066 300 300 280 243 243 243 213 213 213 195 195 195 180 180 180 500 400 315 — 800
3RT1075 400 400 400 324 324 324 284 284 84 260 260 260 240 240 240 630 400 400 — 800
3RT1076 500 500 450 405 405 405 355 355 355 325 325 325 300 300 300 630 500 500 — 1200
3RT1264 225 225 225 225 225 225 225 225 225 193 193 193 173 173 173 500 500 400 — 800
3RT1265 265 265 265 265 265 265 265 265 265 227 227 227 204 204 204 500 500 400 — 800
3RT1266 300 300 300 300 300 300 300 300 300 258 258 258 231 231 231 500 500 400 — 800
3RT1275 400 400 400 400 400 400 400 400 400 344 344 344 308 308 308 800 800 630 — 1200
3RT1276 500 500 500 500 500 500 500 500 500 430 430 430 385 385 385 800 800 630 — 1200
3TF68 500 500 500 500 500 500 440 440 440 408 408 408 376 376 376 800 5003) 630 500 1200
3TF69 - - - - - - 500 500 500 500 500 500 500 500 500 800 6303) 630 500 2000
200 - 820 A
3RB1262-0L 3TF68 4) 630 630 630 502 502 502 440 440 440 408 408 408 376 376 376 1000 5003) 630 500 1200
3TF69 4) 820 820 820 662 662 662 572 572 572 531 531 531 500 500 500 1250 6303) 630 630 2000
1) Please note the operating voltage
3) Please ensure that the safety clearance between the max. 3 AC
operating current and the fuse rated current is maintained.
4) Mounting onto contactor possible
2) Assignment and short-circuit facilities in acc. with IEC 60947-4-1/DIN VDE 660 Part 102
Coordination type "1":
The contactor or starter must not endanger people or the system in the event of a short circuit. They do not
have
to be suitable for further operation without repair and part replacement.
Coordination type "2":
The contactor or starter must not endanger people or the system in the event of a short circuit
and must be suit-
able for further operation. There is a danger of contact welding.
3RU11, 3RB10, 3RB12 Overload relays
SIRIUS System Manual
4-66 A5E40534713002A/RS-AA/001
4.7.4 Terminal bracket for stand-alone installation
Ty p e 3RU19 16-
3AA01
3RU19 26-
3AA01
3RU19 36-
3AA01
3RU19 46-
3AA01
For overload relays 3RU11 16 3RU11 26 3RU11 36 3RU11 46
3RB10 16 3RB10 26 3RB10 36 3RB10 46
Mounting type For screw-on and snap-on attachment to a 35 mm DIN rail; frame
size S3 also on 75 mm DIN rail
Connection of the main circuit
Anschlussart Screw-type terminal Screw-type terminal
with box terminal
Connection type
•Terminal screw Pozidriv Gr. 2 Allen screw
4mm
•Connection cross-section Single-core mm21 x (0.5 to 2.5) 1 x (1 to 6) 2 x (0.75 to 16) 2 x (2.5 to 16)
(min./max.) 1 or 2 conductors max. 1 x (to 4) max. 1 x (to 10)
Finely stranded without wire end ferrule mm2—
Finely stranded with wire end ferrule mm21 x (0.5 to 2.5) 1 x (1 to 6) 2 x (0.75 to 16) 2 x (2.5 to 35)
1 x (0.75 to 25) 1 x (2.5 to 50)
Stranded mm21 x (0.5 to 2.5) 1 x (1 to 6) 2 x (0.75 to 25) 2 x (10 to 50)
max. 1 x (to 4) max. 1 x (to 10) 1 x (0.75 to 35) 1 x (10 to 70)
AWG cables, single- or multi-core AWG 1 x (18 to 14) 1 x (14 to 10) 2 x (18 to 3) 2 x (10 to 1/0)
1 x (18 to 1) 2 x (10 to 2/0)
Ribbon cables
(number x width x thickness)
mm ——2 x (6 x 9 x 0.8) 2 x (6 x 9 x 0.8)
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-1
5
3RA1 Fuseless load feeders/
Combination starters
Section Subject Page
5.1 Specifications/regulations/approvals 5-2
5.2 Device descriptions 5-3
5.2.1 Mounting systems 5-4
5.2.2 Mounting kits for self-assembly 5-5
5.2.3 Complete devices 5-5
5.3 Application and areas of use 5-7
5.4 Accessories 5-8
5.4.1 Accessories for the individual devices 5-8
5.4.2 Accessories specifically for the SIRIUS 3RA fuseless
load feeder 5-8
5.4.3 Instructions for self-assembly 5-9
5.5 Mounting and connection 5-18
5.5.1 Mounting 5-18
5.5.2 Connection 5-21
5.5.3 Circuit diagrams 5-23
5.6 Dimensional drawings (dimensions in mm) 5-24
5.7 Technical specifications 5-28
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-2 A5E40534713002A/RS-AA/001
5.1 Specifications/regulations/approvals
Coordination types
The fuseless load feeders/combination starters are manufactured and
tested in acc. with IEC 60947 Part 1 and Part 2.
An important selection criterion for the fuseless load feeders/combination
starters are the coordination types.
IEC 60947-4-1/DIN VDE 0660 Part 102 draws a distinction between two
coordination types, known as coordination type 1 and coordination type 2.
They describe what happens at a short circuit and the device status after a
short circuit. In both coordination types, the short circuit to be dealt with is
reliably disconnected. There must be no damage to systems or injury to per-
sons. The differences lie only in the degree to which the device is damaged
after the short circuit.
Coordination type 1 The fuseless load feeder can be inoperable after each short-circuit discon-
nection. Damage to the contactor and the circuit breaker/MSP is permissi-
ble.
Coordination type 2 After a short-circuit disconnection, there must not be any damage to the
overload release or any other part. The 3RA1 fuseless load feeder can be put
into operation again without the need for replacement. Only welding of the
contactor contacts is permissible if they can be separated easily without any
significant deformation.
Approvals/test reports All the approvals and test certificates of the individual devices used in the
feeders are valid.
UL/CSA When connected to a SIRIUS contactor the 3RV Motor Starter Protectors
are UL Listed and CSA certified for the following motor switching applica-
tions:
• Starter for Group Installation per N.E.C. 430-53
• Combination Motor Controller, Type F. A Type F Combination Motor Con-
troller is an assembly made up of a Type E, Self-protected Manual Combi-
nation Motor Controller and a contactor. See 2.4.6 "Terminals for Combi-
nation Type E in acc. with UL 508" for more information.
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-3
5.2 Device descriptions
Fuseless load feeders/combination starters up to 100 A are combinations of
devices consisting of a 3RV circuit breaker/MSP for overload and short-cir-
cuit protection and a 3RT contactor for normal switching duty.
The different components can be assembled separately and electrically
wired with individual cables. It is of course simpler to connect the circuit
breakers/MSPs and contactors mechanically and electrically using ready-
made kits.
As an alternative, we offer the pre-assembled 3RA fuseless load feeders/
combination starters. In the smaller frame sizes these combinations can be
mounted directly to DIN rail. The combinations for high ratings come with
mounting adapters for DIN rail mounting or on busbar adapter shoes (Fast-
bus).
Subsequently you’ll receive a detailed overview the 3RA fuseless load feed-
ers/combination starters product spectrum. Depending on the design these
meet coordination type "1" or "2".
Device variants The fuseless load feeders/combination starters can be set up in 4 frame
sizes:
• Frame size S00: width 45 mm; for three-phase induction motors up to
0.75 kW / 400 V, coordination type "2" and
5.5 kW / 400 V, coordination type "1"
• Frame size S0: width 45 mm; for three-phase induction motors up to
7.5 kW / 400 V, coordination type "2" and
11 kW / 400 V, coordination type "1"
• Frame size S2: width 55 mm; for three-phase induction motors up to
22 kW / 400 V, coordination type "2" and coordination type "1"
• Frame size S3: width 70 mm; for three-phase induction motors up to
45 kW / 400 V, coordination type "2" and coordination type "1"
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-4 A5E40534713002A/RS-AA/001
5.2.1 Mounting systems
The possible types of mounting are as follows:
• On a 35 mm rail in acc. with EN 50 022
• Screw-on attachment by means of the attachment openings integrated in
the rail adapter
• On busbar systems with a busbar center-to-center clearance of 40 mm or
60 mm
The following illustrations show the adapters for rail and busbar mounting:
Rail adapter Busbar adapter
Fig. 5-1: Rail adapter/busbar adapter
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-5
5.2.2 Mounting kits for self-assembly
Because SIRIUS is a modular system, the standard devices fit together opti-
mally both mechanically and electrically. The fuseless load feeders/combina-
tion starters can therefore be assembled quickly and easily in all four frame
sizes. To this end, the circuit breaker/MSP and the contactor are connected
using the corresponding kit.
Kits There are kits for reversing feeders for mounting on:
• Rail frame sizes S0, S2, S3: mounting kit for reversing operation
frame size S00: wiring kit for reversing operation
• Busbars frame sizes S00, S0, S2: mounting kit for reversing operation
The following illustration shows how to assemble the fuseless load feeder
of frame size S00 for reversing operation and rail mounting:
Fig. 5-2: Self-assembly of a fuseless load feeder (frame size S00)
5.2.3 Complete devices
The fuseless load feeders/combination starters are also available fully
assembled:
• Up to 22 kW in the case of direct starters
• Up to 11 kW in the case of reversing starters
4
5
6
12
3
Adapter
(3RA1911-1A)
7
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-6 A5E40534713002A/RS-AA/001
Control supply voltage For control voltages of:
• 230 V AC / 50 Hz
•24VDC
Self-assembly on rails or busbar systems is recommended for other control
voltages.
Auxiliary contact
elements
• Direct feeders
The contactors of frame size S00 include a normally open contact
• Reversing feeders
S00/S0: electrical and mechanical interlocking
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-7
5.3 Application and areas of use
The fuseless load feeders/combination starters can be used in electrical
installations wherever combinations of fuses, contactors, and overload
relays have been used up to now. The greater functionality of the circuit
breaker/MSP over fuses, and their suitability as emergency-stop and discon-
necting switches, means that many requirements can be met more easily
with a fuseless load feeder.
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-8 A5E40534713002A/RS-AA/001
5.4 Accessories
5.4.1 Accessories for the individual devices
The accessories for the individual devices can also be used in the load
feeder.
You will find information on the accessories of the contactors in Chapter 3,
"Contactors" (Section 3.4, "Accessories").
You will find information on the accessories of the circuit breakers/MSPs in
Chapter 2, (Section 2.4, "Accessories").
5.4.2 Accessories specifically for the SIRIUS 3RA fuseless load feeder
The following accessories facilitate the setup and wiring of the fuseless load
feeder:
Accessory Description
Auxiliary switch for the circuit
breaker/MSP
• Transverse and connectable from
above
• 1 changeover contact, 1 normally
open contact +
1 normally closed contact or
2 normally open contacts
Auxiliary switch blocks for the
contactor
Snap-on and connectable from below
Link modules • Provide electrical connections
between circuit breakers/MSPs and
contactors
• Also provide a mechanical connec-
tion in frame sizes S00 and S0
Wiring kits • Electrical and mechanical connec-
tion for reversing combinations
• The wiring kit can be combined with
the link module
• In the case of frame size S00, the
wiring module contains integrated
cables for electrical interlocking
Table 5-1: Fuseless load feeder, accessories
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-9
5.4.3 Instructions for self-assembly
Fuseless load feeder for rail mounting
Assembly The following illustration and the table below it show how to assemble the
fuseless load feeder:
• Rail mounting
•Frame size S00
• Reversing operation
Fig. 5-3: Self-assembly, rail, reversing operation (frame size S00)
Step Procedure
1Hook the back of the right contactor of the contactor combi-
nation onto the link module
2With a tilting movement, insert the connecting pins of the link
module into the upper terminal openings of the contactor
3Tighten the upper terminal screws of the contactor
4Hook the link module onto the back of the circuit breaker/MSP
5With a tilting movement, insert the connecting pins of the link
module into the lower terminal openings of the circuit
breaker/MSP
6Tighten the lower terminal screws of the circuit breaker/MSP
7Snap the circuit breaker/MSP and thus the feeder onto the rail
Table 5-2: Self-assembly of the reversing starter for rail (frame size S00)
4
5
6
12
3
3RA1911-1A
7
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-10 A5E40534713002A/RS-AA/001
The following illustrations show how to assemble the fuseless load feeder:
•Rail mounting
• Frame sizes S00 to S3
• Direct starters
Fig. 5-4: Self-assembly, rail, direct starter (frame sizes S00 to S3)
4
5
6
12
3
3RA1911-1A 3RA1921-1.
7
4
1
6
7
2
3
5
S0
S00
S2
2
3
1
4
5
4
1
3RA1931-1.
3RA1932-1A
S3
2
1
3
4
5
1
4
3RA1941-1.
3RA1942-1A
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-11
The following illustrations show how to assemble the fuseless load feeder:
• Rail mounting
• Frame sizes S00 with Cage Clamp terminal system
Direct starter
Fig. 5-5: Self-assembly, rail, direct starter (frame size S00, Cage Clamp)
2
1
43
5
6
5b
5a 5c
3RA1911-2E
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
5-12 A5E40534713002A/RS-AA/001
The following illustrations show how to assemble the fuseless load feeder:
• Rail adapter
• Reversing operation
•Frame size S0
Fig. 5-6: Self-assembly, rail, reversing operation (frame size S0)
3RA1921-1.
6(4x)
7
7
10
9
11
8
12
2
1
3RA1924-2B 3
3
Kit
3RA1923-1B
4
4
5
3RA1 Fuseless load feeders/Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-13
The following illustrations show how to assemble the fuseless load feeder:
• Rail adapter
• Reversing operation
• Frame size S2 (assembly of frame size S3 is analogous)
Fig. 5-7: Self-assembly, rail, reversing operation (frame sizes S2 and S3)
4
4
7
8
8
11
10
9
9
12
13
14
14
14
14
3RA1931-1.
3RA1941-1.
3
2
1
3
Kits
S2: 3RA1933-1B
S3: 3RA1943-1B
3RA1924-2B
S2: 4X
S3: 6X
5
6
5
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-14 A5E40534713002A/RS-AA/001
5 3RA1 fuseless load feeders
Fuseless load feeders/combination starters for busbar mounting
There are kits available for reversing operation for frame sizes S00 to S2.
The fuseless load feeders/combination starters of frame size S3 are not suit-
able for busbar mounting.
Direct starters of frame
sizes S00 to S2
The following illustrations show how to assemble the fuseless load feeder:
• Busbar adapter
• Direct starters
• Frame sizes S00 to S2
Fig. 5-8: Self-assembly, busbars, direct starters (frame sizes S00 and S2)
3RA1921-1.
S2
S0
S00
4
1
4
2
3
5
3RA1931-1.
8US1
1
2
4
3
3
5
3RA1911-1A
8US1
110
1
2
4
3
5
3
8US1
125
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-15
The following illustrations show how to assemble the fuseless load feeder:
• Busbar adapter
• Direct starters
• Frame sizes S00 and S0 with Cage Clamp terminal system
Fig. 5-9: Self-assembly, busbars, direct starters (frame sizes S00/S0, Cage Clamp)
54
3
3
6
7b
7a
7c
7
8
2
1
45
2
3
1
1a
1b
1c
3RA1911-2E
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-16 A5E40534713002A/RS-AA/001
Reversing operation of
frame sizes S00 to S2
The following illustrations show how to assemble the fuseless load feeder:
• Busbar adapter
• Reversing operation
• Frame sizes S00 to S2
Fig. 5-10: Self-assembly, busbars, reversing operation (frame sizes S00 and S0)
S00
1
2
4
3
3
5
3RA1911-1A
S0
1
2
3
5
3
3
4
6
3RA1921-1.
3RA1924-2B
55
Kit 3RA1913-1.
Kit 3RA1923-1.
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-17
Fig. 5-11: Self-assembly, busbars, reversing operation (frame size S2)
4
1
4
4
2
3
5
3RA1931-1.
3RA1904-2B
S2
Kit 3RA1933-1.
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-18 A5E40534713002A/RS-AA/001
5.5 Mounting and connection
5.5.1 Mounting
Snap-on attachment The fuseless load feeders/combination starters can be snapped onto a
35 mm rail in acc. with EN 50 022.
Rail mounting without
adapter
The fuseless direct feeders of frame sizes S00 and S0 and reversing feeders
S00 can be snapped onto the rail without an adapter by mounting the circuit
breaker/MSP. No tools are required for either mounting or removal.
A rail adapter is available as an accessory for frame sizes S00/S0. The
reversing feeders of frame sizes S2/S3 are mounted with a rail adapter.
Rail mounting with
adapter
To mount frame sizes S2 and S3 and reversing feeders S0 on a rail, adapters
must be used for stability reasons. These are available as accessories. To
remove them, the rail adapter is unlocked with a screwdriver. You will find
information on this in Section 2.5.1 on how to mount circuit breakers/MSPs.
All feeders can be mounted with a rail adapter.
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-19
Screw-mount attachment
A screw-mount attachment is implemented in the case of sizes S00 and S0
by means of push-in lugs (see Section 2.4 for information on circuit-breaker
accessories).
In the case of sizes S2 and S3, the holes for screw-mount attachment are
integrated in the mandatory rail adapter.
The following illustration shows screw-mount attachment by means of push-
in lugs in the case of the fuseless load feeder of frame size S00:.
Fig. 5-12: Screw-mount attachment, fuseless load feeder (frame size S00)
Important
In the case of screw-mount attachment without a rail adapter, the feeder
must not be screwed onto a conductive surface. Insulation is necessary so
that, in the event of a short circuit of the circuit breaker/MSP, there is no
short circuit to the base plate.
4
5
6
12
3
3RA1900-0B
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-20 A5E40534713002A/RS-AA/001
Busbar mounting The following illustrations show busbar mounting and removal of the fuse-
less load feeders/combination starters S00 to S2.
Fig. 5-13: Busbar system, mounting/removal (frame sizes S00 to S2)
10 mm
1
2
1
2
8US1.61-5FP08
S00 (S0): Mounting
S2: Mounting Removal of the extension piece
S00 (S0): Removal
8US1.51-5DM07
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-21
5 3RA1 fuseless load feeders
5.5.2 Connection
The fuseless load feeders/combination starters are available with the
SIGUT terminal system.
Conductor
cross-sections
The following table gives the permissible conductor cross-sections for
fuseless load feeders. The specifications apply to main and auxiliary
connections.
Frame sizes S00 and S0
Table 5-3: Conductor cross-sections (frame sizes S00/S0)
Frame size S2
Table 5-4: Conductor cross-sections (frame size S2)
S00
A1/A2; NO/NC
L1 L2 L3
T1 T2 T3
S0
A1/A2; NO/NC L1 L2 L3
T1 T2 T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in
0.8 to 1.2 Nm
7 to 10.3 lb.in
2 to 2.5 Nm
18 to 22 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (0.5 to 2.5 mm²) 2 x (0.5 to 2.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
AWG 2 x (18 to 14) 2 x (18 to 14) 2 x (14 to 10)
10
10
S2
A1/A2; NO/NC L1 L2 L3
T1 T2 T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in ∅ 5 ... 6 mm / PZ2
3 to 4.5 Nm
27 to 40 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (0.75 to 16 mm²)
2 x (0.5 to 2.5 mm²) 2 x (0.75 to 16 mm²)
1 x (0.75 to 25 mm²)
—— 2 x (0.75 to 25 mm²)
1 x (0.75 to 35 mm²)
AWG 2 x (18 to 14) AWG 2 x (18 to 3)
1 x (18 to 2)
10
13
10
13
13
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-22 A5E40534713002A/RS-AA/001
Frame size S3
Table 5-5: Conductor cross-sections (frame size S3)
S3
A1/A2; NO/NC L1, L2, L3
T1,T2,T3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in
4 to 6 Nm
35 to 53 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²) 2 x (2.5 to 16 mm²)
2 x (0.5 to 2.5 mm²) 2 x (2.5 to 35 mm²)
1 x (2.5 to 50 mm²)
—— 2 x (10 to 50 mm²)
1 x (10 to 70 mm²)
AWG 2 x (18 to 14) AWG 2 x (10 to 1/0)
1 x (10 to 2/0)
min
22
4
10
17
10
17
17
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-23
5.5.3 Circuit diagrams
Direct starters
Fig. 5-14: Circuit diagrams, direct starters (frame sizes S00 to S3)
Reversing starters
Fig. 5-15: Circuit diagrams, reversing starters (frame sizes S00 to S3)
S00 S0 to S3
I»I»I»
A2 2T1 4T2 6T3 14 NO/22 NC
A1 1L1 3L2 5L3 13 NO/21 NC
I»I»I»
A2 2T14T2 6T3
A1 1L1 3L2 5L3
S00 S0 to S3
A2
A1
A2
A1
K1 K2
2T1 4T2 6T3 22 NC
21 NC
22 NC
246
135
246
1L1 3L2 5L3
21 NC
24 6
13 5
I»I»I»
A2
A1
A2
A1
K1 K2
2T1 4T2 6T3 NC
NC
NC
246
135
246
1L1 3L2 5L3
NC
24 6
13 5
I»I»I»
111
122
121 110
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-24 A5E40534713002A/RS-AA/001
5.6 Dimensional drawings (dimensions in mm)
3RA1 fuseless load feeders/combination starters - frame size S00 for rail
1) Space above the arc chute
Clearance to grounded parts at the side at least 6 mm
3RA1 fuseless load feeders/combination starters - frame size S00
for 40 mm and 60 mm busbar systems
1) Space above the arc chute
Clearance to grounded parts at the side at least 6 mm
Fig. 5-16: 3RA11 10-..A.. for direct-on-line starting Fig. 5-17: 3RA12 10-..A.. for reversing operation
163
9
545
6.5
614
1030
8
51
7.5
5
159 20
45 5
527.5
67.5
70
SIE MENS
SIE MENS
NSB00392
9
590
6.5 40
163
8
10
NSB00393
SIE MENS SIEMENS
I0
159
9
545
6.5
21
1)
SIE MENS
SIE MENS
NSB00394
203
27
60
1348
60
82
98
101
159
90
SIE MENS
SIE MENS
203
I0
9
SIE MENS
NSB00395
5
6.5
Fig. 5-18: 3RA11 10-..C.., 3RA11 10-..D.. for direct-on-line starting Fig. 5-19: 3RA12 10-..C.., 3RA12 10-..D.. for reversing operation
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-25
3RA1 fuseless load feeders/combination starters - frame size S0 for rail
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
3) Attached using two 35 mm rails with a depth of 7.5 mm in acc. with EN 50 022 or one 75 mm rail in acc. with EN 50 023.
Clearance to grounded parts at the side at least 6 mm
3RA1 fuseless load feeders/combination starters - frame size S0
for 40 mm and 60 mm busbar systems
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
Clearance to grounded parts at the side at least 6 mm
Fig. 5-20: 3RA11 20-..A.. for direct-on-line starting Fig. 5-21: 3RA12 20-..B.. for reversing operation
814 10
30
5
5
91
45
28
14
6
183
178
6
2)
39
7.5
5
61
86
DC 96
33
1)
NSB00396
SIE MENS
SIE MENS
45
5
SIEMENS
SIEMENSSIEMENS
7106
755
100
5
DC 120
110
85
63
78
14
14
57
115
210
220
5
20
106
125 44
5
2)
1)
3)
NSB00397
Fig. 5-22: 3RA11 20-..C.., 3RA11 20-..D.. for direct-on-line starting Fig. 5-23: 3RA1220-..C.., 3RA1120-..D.. for reversing operation
121
2)
1)
NSB00398
SIEMENS
SIEMENS
14
8
28
48 23
13
6
27
183
209
70
92
117
45
DC 127
2)
NSB00399
SIEMENS
SIEMENS
14
810
6
185
211
100
SIEMENS
26
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-26 A5E40534713002A/RS-AA/001
3RA1 fuseless load feeders/combination starters - frame size S2 for rail
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
3) Attached using two 35 mm rails with a depth of 7.5 mm in acc. with EN 50 022 or one 75 mm rail in acc. with EN 50 023.
Clearance to grounded parts at the side at least 6 mm
3RA1 fuseless load feeders/combination starters - frame size S0
for 40 mm and 60 mm busbar systems
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
Clearance to grounded parts at the side at least 6 mm
Fig. 5-24: 3RA1 direct-on-line starting (frame size S2) Fig. 5-25: 3RA1 reversing operation (frame size S2)
Fig. 5-26: 3RA1 direct-on-line starting (frame size S0) Fig. 5-27: 3RA1 reversing operation (frame size S0)
17.5
NSB00402
259
309
10 55
718
17
68
95
142
18
28
DC 157
176
34
53 14
SIE MENS
SIE MENS
2)
1)
259
2)
309
10
120
17.5
NSB00403
10
SIE MENS
SIE MENSSIE MENS
1)
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-27
3RA1 fuseless load feeders/combination starters - frame size S3 for rail
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
3) Attached using two 35 mm rails with a depth of 7.5 mm in acc. with EN 50 022 or one 75 mm rail in acc. with EN 50 023.
4) Hexagonal socket 4 mm
Clearance to grounded parts at the side at least 6 mm
Fig. 5-28: 3RA1 direct-on-line starting (frame size S3) Fig. 5-29: 3RA1 reversing operation (frame size S3)
NSB00404
330
12
7
60
23
SIE MENS
SIE MENS
2)
4)
3)
111
111
195
100
160
72
DC 173
5
5
40
125
8
310
320
82323 12
70
1)
NSB00405
80
150
320
330
12
87 55
60
23
SIE MENS
SIE MENS SIEMENS
2)
4)
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-28 A5E40534713002A/RS-AA/001
5.7 Technical specifications
Installation regulations for 400/500 V AC
Installation regulations for 690 V AC
When installing the combinations, the following clearances must be maintained to grounded parts:
circuit breakers/MSPs
combined with contactors
Clearances to grounded or
live parts
Circuit
breaker
Contactor Rated operational
voltage
Y
mm
X21)
mm
Z
mm
3RV1. 1 with 3RT10 1 400/500 V 20 10 9
3RV1. 2 with 3RT10 1
3RT1.2
3RT1.3
400/500 V
400/500 V
400/500 V
30
30
30
10
10
10
9
9
9
3RV1. 3 with 3RT10 2
3RT1.3
3RT10 4
400/500 V
400/500 V
400/500 V
50
50
50
10
10
10
10
10
10
3RV1. 4 with 3RT10 4
3RT10 4
400 V
500 V
90
220
10
10
12
20
1) Minimum clearance to the contactor at the front. A minimum clearance at the front is not required for a circuit breaker/MSP.
Frame size Format Standard format for frame sizes S0 to 5.5 kW, S2, and S3 Format for frame size S0 from 7.5 to 11 kW
S0 Mounted on an insulated
base plate. In screw-on
mounting, the screws
must not be grounded.
Alternatively, the rail
adapter can be used with-
out restrictions.
S2/S3 Mounted on an insulated
base plate. Alternatively,
the rail adapter can also be
used.
When installing the combination, the following clearances must be maintained to grounded parts:
2 circuit breakers/MSPs combined with contactors Clearance to grounded or live parts
Circuit
breaker
Contactor Rated operational
voltage
Y1
mm
Y2
mm
Y3
mm
X1
mm
X2
mm
X3
mm
3RV1. 2 with 3RT10 1 690 V 80 10 95 20 14 20
3RV1. 3 with 3RT10 3 690 V 50 10 120 10 32 10
3RT10 4 690 V 50 10 120 10 40 10
3RV1...
3RT1...
1L1 3L2 5L3
2T1 4T2 6T3
1L1 3L2 5L3
2T1 4T2 6T3
NSB01030b
3RV1...
3RT1...
Z
Y
Z
X2
NSB01032b
3RV1...
3RV1...
3RT1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
1L1 3L2 5L3
2T1 4T2 6T3
Load side
Infeed side
NSB01031c
3RV1...
3RV1...
3RT1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
1L1 3L2 5L3
2T1 4T2 6T3
Load side
Infeed side
3-phase busbar
Frame size S0:
3RV19 15-1A
Frame size S2:
3RV19 35-1A
Link module
see accessories
S0: 3RV19 15-1A
S2: 3RV19 35-1A
3-phase busbar
1
In a combination
involving a circuit breaker
of frame size S2 and a
contactor of frame size
S3, a clearance of 10 cm
must be maintained
2
3RV1...
3RV1...
3RT1...
1L1 3L2 5L3 1L1 3L2 5L3
2T1 4T2 6T32T1 4T2 6T3
1L1 3L2 5L3
2T1 4T2 6T3
NSB01033c
3RV1...
3RT1...
Z
Y1
Z
Y2
Y3
X2
X1
1
2
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
A5E40534713002A/RS-AA/001 5-29
General specifications
Specifications IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100)
IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 101)
IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102)
Ty p e
Frame size
Number of poles
3RA1. 1
S00
3
3RA1. 2
S0
3
3RA1. 3
S2
3
3RA11 4
S3
3
Max. rated current Inmax
(= max. rated operational current Ie)
A122550100
Permissible ambient temperature °C
°C
–55 to +80 for storage/transportation
–20 to +70 for operation (above +60 °C with restrictions)
Rated operating voltage Ue
Rated frequency
Rated insulation voltage Ui
Rated impulse strength Uimp
V
Hz
V
kV
690
50/60
690
6
Tripping class (CLASS) In acc. with IEC 60 947-4-1,
EN 60 947-4-1
(VDE 0660 Part 102)
10
Rated short-circuit current Iq at 50/60 Hz 400 V AC
in acc. with IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102)
Coordination types in acc. with IEC 60 947-4-1, EN 60 947-4-1
(VDE 0660 Part 102)
kA 50
1)
Power loss Pv max of all main conducting paths
depending on the rated current In
(upper setting range)
Up to 1.25 A
1.6 to 6.3 A
8to 12A
2 to 6.3 A
8to 16A
20 to 25 A
25 to 32 A
40 A
45 to 50 A
63 A
75 to 90 A
100 A
W
W
W
W
W
W
W
W
W
W
W
W
6
7
10.5
7
9.5
13
19
28
35
29
45
60
Power input of the magnet coils with contactors
(given a cold coil and Us, 50 Hz)
AC operation
DC operation
Making capacity
cos ϕ
Holding power
cos ϕ
Making capacity = holding power
VA
VA
W
27
0.8
4.6
0.27
3.2
61
0.82
7. 8
0.24
5.4
127
0.82
13.5
0.34
11.50
270
0.68
22
0.27
15
Operating range of the magnet coils with contactors 0.8 to 1.1 x Us
Lower limit at 55 °C
at 60 °C
0.8 x Us
0.85 x Us
–
–
Service life of circuit breakers/MSPs
Mechanical life
Electrical life
Max. switching frequency per hour (motor startups)
Operating cycles
Operating cycles
1/h
100,000
100,000
15
50,000
50,000
15
Service life of contactors
Mechanical life Operating cycles 30 million 10 million
Electrical life Operating cycles See the service life characteristic of the contactors (part 3).
Shock resistance (sinus) In acc. with IEC 60 068 Part 2-27 gUp to 9.8 Up to 12.5 Up to 8 Up to 6
Degree of protection In acc. with IEC 60 947-1 IP20 IP20
IP00
terminal housing
Shock protection In acc. with DIN VDE 0106 Part 100 Protected against
touching by
fingers
Phase loss sensitivity
of the circuit breaker/MSP
In acc. with IEC 60 947-4-1,
EN 60 947-4-1
(VDE 0660 Part 102)
Ye s
Disconnector properties
of the circuit breaker/MSP
Main and emergency-stop
switch properties of the circuit
breaker/MSP and accessories
In acc. with IEC 60 947-2,
EN 60 947-2
(VDE 0660 Part 101)
In acc. with IEC 60 204-1,
EN 60 204-1
(VDE 0113 Part 1)
Ye s
Yes, with undervoltage release to category 1
in the case of proper use
Safe isolation between the main
and auxiliary circuits
In acc. with DIN VDE 0160 Part 101 Up to 400 V
Positively driven operation with contactors Yes Yes, from the main contact to the auxiliary normally
closed contact
3RA1 Fuseless load feeders / Combination starters
SIRIUS System Manual
5-30 A5E40534713002A/RS-AA/001
Conductor cross-sections - main circuit
1) After the box terminals have been removed, lug or busbar connections are possible.
Specifications IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100)
IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 101)
IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102)
Ty p e
Frame size
Number of poles
3RA1.1
S00
3
3RA1. 2
S0
3
3RA1. 3
S2
3
3RA11 4
S3
3
Connection type
Terminal screw
Screw-type
terminal
Pozidriv 2
Screw-type
terminal
Pozidriv 2
Box terminal
Pozidriv 2
Box terminal
Allen screw
Minimum/maximum conductor cross-sections
Finely stranded with wire end ferrule
- 1-wire
- 2-wire
Single- or multi-core
- 1-wire
- 2-wire
Ribbon conductor
Bar connection
Single- or multi-core
Multi-core
mm2
mm2
mm2
mm2
AWG
AWG
0.5/2.5
0.5/2.5
0.5/4
0.75/2.5 (max. 4)
–
–
2 x (18 to 14)
–
1/6
1/2.5 to 2.5/6
1/6 (max. 10)
1/2.5 to 2.5/6
–
–
2 x (14 to 10)
–
0.75/25
0.75/16
0.75/35
0.75/25
yes
–
2 x (30 to 2)
–
2.5/501)
2.5/351)
2.5/701)
2.5/501)
yes
yes
–
2 x (10 to 1/0)
Connection type Cage Clamp terminal
mm2
AWG
2 x (0.5 to 2.5)
2 x (18 to 14)
–
Permissible installation position
Important:
In acc. with DIN 43 602
Start command "I"
right or above
90° 90°
NSK-7666
22,5° 22,5°
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-1
6
3RH, 3TX, LZX Coupling links
Section Subject Page
6.1 Specifications/regulations 6-2
6.2 Device description 6-3
6.2.1 Relay coupling modules versus semiconductor cou-
pling modules 6-4
6.2.2 Coupling links in two-tier and box terminal format 6-5
6.2.3 Plug-in relay coupling links 6-6
6.2.4 Coupling links for direct attachment 6-7
6.2.5 SIRIUS contactor relays 6-7
6.2.6 Installation 6-7
6.2.7 Notes on configuration 6-8
6.2.8 Explanation of terms 6-9
6.3 Application and areas of use 6-10
6.3.1 General information 6-10
6.3.2 Criteria for selection 6-11
6.4 Accessories 6-12
6.4.1 Accessories for two-tier coupling links 6-12
6.4.2 Accessories for LZX plug-in relay coupling links 6-13
6.5 Mounting and connection 6-14
6.5.1 Mounting 6-14
6.5.2 Connection 6-14
6.5.3 Device circuit diagrams 6-16
6.6 Dimensional drawings (dimensions in mm) 6-20
6.7 Technical specifications 6-22
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-2 A5E40534713002A/RS-AA/001
6.1 Specifications/regulations
Table 6-1: Regulations and specifications
Degrees of protection
offered by housing
EN 60 529
I/O interfaces EN 61 131-2
Connection designations EN 50 005
DIN standard rail EN 50 022
Coordination of insulation VDE 0110
Electrical relays,
all-or-nothing relays
DIN VDE 0435 Part 201/IEC 60255-1-00
Control devices
and switching elements
DIN VDE 0660 Part 200/IEC 60947-5-1
Optocoupler DIN VDE 0884
Equipment of
high-voltage installations
DIN VDE 0160
Shock protection DIN VDE 0106 Part 100
Safe isolation DIN VDE 0106 Part 101
Environmental conditions IEC 60721
EMC
Emission
Immunity
EN 50081
EN 50082
General information VDE 0660 Part 100/IEC 60947-1
Specifications for industrial
control systems
UL 508
Specifications for industrial
equipment
CSA C22.2-14
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-3
6.2 Device description
Coupling links are interface modules that enable optimal adaptation
between electronic controllers and I/O devices, both on the sensor and the
actuator side.
They also provide electrical isolation.
Overview The following table offers an overview of the device groups and their distin-
guishing features:
Table 6-2: 3RH, 3TX, LZX coupling links - overview of the device groups with their distinguishing
features
Contact material Relay coupling links are offered with AgNi and hard gold-plated contacts.
Hard gold-plated contacts have greater contact reliability at low voltages and
currents. They can be used as of mV or μA. They can be used to switch low
levels of power, such as those involved in measurement and control signals.
In the case of input coupling links, they are to be recommended on account
of the low currents of the input modules of controllers.
Device group Distinguishing features
Two-tier coupling links
3TX7004/3TX7005
Relay couplers:
6.2 to 22.5 mm width, contact elements: 1 to 3 normally
open contacts, 1 to 2 changeover contacts
Multi-channel devices
Semiconductor couplers:
6.2 to 12.5 mm width
Long service life, high switching frequency
Screw-type terminal (3TX7004)
Cage Clamp terminal (3TX7005)
Box terminals
3TX7002/3TX7003
Relay couplers:
Contact elements: 1 to 2 normally open contacts, 1 to 2
changeover contacts, low device height
Semiconductor couplers:
Long service life, high switching frequency
Screw-type terminal (3TX7002)
Cage Clamp terminal (3TX7003)
Plug-in relay coupling links
LZX: RT/PT/MT
Plug-in relays (1 to 4 changeover contacts)
High switching currents, prewiring possible
Coupling links for direct
attachment to contactor
coils
3RH1924/3TX4090/3TX7090
Space-saving, adapted to contactor type,
reduced wiring
3RH1924 for frame sizes S0 to S3
3TX4090 for 3TH42/43 auxiliary contactors
3TX7090 for frame sizes 3 to 14
SIRIUS
contactor relays
3RT10
3RH11
For main circuits: switching from motors to 11 kW directly
For main circuits: up to 4 auxiliary switches
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-4 A5E40534713002A/RS-AA/001
6.2.1 Relay coupling modules versus semiconductor coupling modules
Table 6-3: Comparison: Relay coupling modules and semiconductor coupling modules
Models Advantages Disadvantages
• Suitable for direct and alter-
nating voltage
• High switching capacity with-
out heat generation
• Virtually no transfer resis-
tance (suitable as measured
value transfer switch)
• Electrical isolation
• Safe isolation between con-
tact and coil sides
• No leakage current
• High electromagnetic com-
patibility
• High noise immunity
• Insensitive to overloads and
voltage peaks
• Several switching levels
• Lower switching frequency
• Contact erosion, particularly
in the case of inductive loads
• Inductivity of the coil (distur-
bance)
• Mechanical wear (service life)
• Low direct-current switching
capacity
• Bounce time of the relay con-
tact
• Danger of contact microweld-
ing in the case of capacitive
loads
• No contact welding in the
case of capacitive loads
• High switching frequencies
• High direct-current switching
capacity
• Long service life
• Bounce-free switching
• Insensitive to vibrations and
impact
• Defined transfer resistance
and volume resistance
• Safe isolation between drive
circuit and load in acc. with
DIN VDE 0884
• Silent switching operation
• High temperature rise in the
case of high loads
• Leakage current at output
• Sensitive to peaks in the
power system
• Not suitable as measured
value transfer switch because
of a voltage drop at the
switching transistor
Relay coupling modules
22.5 mm6.2 mm 17.5 mm12.5 mm
•Single-
channel
•1NO/
1SPDT
• Single-
channel
•Multi-
channel
•With/
without
M-O-A
switch
• 1 SPDT/
1NO/
2NO
• Single-
channel
•Multi-
channel
• Without
switch
•3 NO
• Single-
channel
•Multi-
channel
• Without
switch
• 2 SPDT
Semiconductor coupling modules
12.5 mm
• Single-
channel
• Single-channel
•With M-O-A
switch
• Without switch
6.2 mm
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-5
6.2.2 Coupling links in two-tier and box terminal format
Features • Connections at two levels
• Very narrow design, as of 6.2 mm
• Terminal system: screw-type and Cage Clamp
• Labeling strip to identify equipment
Models The 3TX70 coupling links for SIRIUS are available as both input couplers and
output couplers, which have their terminals in different positions:
Input coupling links have hard gold-plated contacts for greater contact
reliability at low voltages and currents.
Status indication A yellow status LED on the drive circuit side indicates whether there is any
control supply voltage applied to the coupler.
Protective circuit There is an integrated rectifier at the input of each coupler. As a result, they
are protected against polarity reversal. The rectifiers function as flywheeling
diodes at disconnection. Semiconductor outputs are protected by suppres-
sor or Zener diodes.
Manual-0-automatic Some coupling links are equipped with a manual-0-automatic switch that
makes it easier to switch the system on and is used for test purposes.
• Manual: Relay is always on
• 0 (zero): Relay is always off
• Automatic: Relay follows the control supply voltage (A1)
Power consumption Following on from the technical specifications of the electronic systems, the
coupling links have low power consumption. They can be controlled from a
programmable controller and are suitable for continuous duty.
Accessories The following accessories are available for two-tier coupling links:
• 24-pole connecting lead or connection comb
• Screwdriver for Cage Clamp terminal system
• End holder and end plate
Fig. 6-1: Output coupler Fig. 6-2: Input coupler
A1
A2
13
14
A1
A2
13
14
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-6 A5E40534713002A/RS-AA/001
6.2.3 Plug-in relay coupling links
The plug-in relay coupling links are modular coupling links. The plug-in for-
mat means the relays can be easily replaced.
Models There are complete modules for 1 and 2 changeover contacts and individual
modules for 1, 2, 3 or 4 changeover contacts for a rated control supply
voltage of either 24 V DC or 230 V AC.
Widths Plug-in relay coupling links are available in 3 widths:
• 15.5 mm print relays, LZX: RT variants
• 27 mm mini-industrial relays, LZX: PT variants
• 38 mm industrial relays, LZX: MT variants
Installation The plug-in relay coupling links are plugged into the associated bases, and
these are snapped onto a 35 mm rail in acc. with EN 50 022.
Surge suppression To avoid high breaking voltage peaks, LZX: RT and PT plug-in relay coupling
links are available for a rated control supply voltage of 24 V DC, with 1, 2, or
4 changeover contacts (Ws) and integrated surge suppression (flywheeling
diode). RC elements are available for AC voltages.
Connection The standard polarity must be taken into consideration when connecting up:
• At A1: positive voltage supply (+)
• At A2: negative voltage supply (-)
Test button The LZX: PT and MT variants are equipped with a test button. The plug-in
relay coupling link can thus be brought into the switching state and locked
without the need for electrical triggering. When the test button is
protruding, this indicates the locked switching position.
LED An LED is available either as an individual plug-in module or is integrated in
the relay, depending on the variant involved.
Power consumption Following on from the technical specifications of the electronic systems, the
coupling links have low power consumption.
Safe isolation The drive circuit and contacts are electrically isolated. Safe isolation can also
be achieved for the print relays (LZX:RT and PT series) by means of a special
base.
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-7
6.2.4 Coupling links for direct attachment
Contactors S0 to S3 The 3RH1924-1GP11 coupling relay, which is screwed directly onto the coil
terminals, is available for direct attachment to the contactors of frame sizes
S0 to S3.
The 3TX4090-0C/-0D coupling links are suitable for attachment to 3TH42/43
auxiliary contactors.
Contactors of up to
450 kW
In the case of the large contactors of up to 450 kW (size 14), the 3TX7090
coupling link can be snapped on at the side like an auxiliary switch block,
and the wires are connected to the contactor coil terminals.
Variants There are variants with one normally open contact, 24 V DC, with and with-
out surge suppression.
The operating range is 17 to 30 V DC.
Installation The 3TX 4090 and 3RH1924-1GP11 coupling links are screwed directly onto
the contactor coil terminals, and the 3TX7090 coupling links are snapped on
at the side like the auxiliary switches.
Surge suppression The following coupling links have an integrated surge suppressor (varistor)
for the contactor coil to be switched:
• 3RH1924-1GP11
• 3TX4090-0D
• 3TX7090-0D
Power consumption Following on from the technical specifications of the electronic systems, the
coupling links have low power consumption.
LED An LED is integrated in the coupler.
6.2.5 SIRIUS contactor relays
The SIRIUS 3RT10/3RH11 contactor relays are described in Chapter 3,
"Contactors".
6.2.6 Installation
Attachment Snap-on attachment
The coupling links can be snapped onto a 35 mm rail in acc. with EN 50 022.
Screw-on attachment is not possible.
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-8 A5E40534713002A/RS-AA/001
Connection Screw-type terminals
The two-tier coupling links are fitted with slotted screws for a maximum
screwdriver blade width of 4 mm.
Plug-in relay couplers have plus-minus POZIDRIV 2 screw-type terminals.
Cage Clamp terminals
The two-tier coupling links described in Section 6.2.1 are available with
Cage Clamp terminals as well as screw-type terminals.
6.2.7 Notes on configuration
Contact microwelding When capacitive loads are switched, a short-circuit current briefly occurs
(for a period lasting only microseconds) if the capacitor is not connected in
series with a resistor. This can result in contact microwelding and the con-
tact being unable to open after the control supply voltage is removed. To
prevent this from happening, a resistor can be connected in series, or a
coupling link with a semiconductor output and short-circuit protection can
be used.
Switching inductive
loads
The contacts are tested in acc. with EN 60947-5-1, utilization category
AC-15 and DC-13. Going beyond the requirements of the standard, a
continuous test was carried out on the contacts with an AC-15 load for
100,000 operating cycles. The electrical service life of the contacts was thus
tested over 100,000 operating cycles at the specified current under normal
conditions. A lower load on the contacts or a protective circuit for the induc-
tive load increases the service life of the contacts. If this service life is insuf-
ficient, a semiconductor coupler with an unlimited service life must be
used.
Max. line length in
AC operation
Each wire has a line capacitance that works like a capacitor connected in
series to the coupling link. The effect of this in operation with alternating
current is that so much current may flow due to the line capacitance that the
coupling link does not fall in spite of a switch being open. To remedy this, a
parallel resistor can be fitted to A1/A2 of the coupling link, or an RC combi-
nation can be used. Both of these measures change the performance and
switching times of the coupling link.
The following basic circuit diagram shows the line capacitance:
Fig. 6-3: Basic circuit diagram, line capacitance
The line lengths specified in the catalog were calculated for a line capaci-
tance of 0.3 nF/m. This depends on the wire used.
A1
A2
~
CL= line capacitance
Relay coupling link
Button/
switch
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-9
6.2.8 Explanation of terms
Electrical isolation There is no conductive connection between the input circuit and the output
circuit. Electrical isolation is ensured by the in-built relay and, in the case of
semiconductor outputs, by means of optocouplers.
Safe isolation Safe isolation provides protection against shock currents in different circuits.
It is implemented by means of increased creepages and clearances.
Distinction between
terms
Electrical isolation is not necessarily safe isolation.
Safe isolation is a protective measure against shock current, the primary
purpose of which is to prevent injury. It prevents the voltage of one circuit
crossing over into another.
For the insulation coordination of equipment, the standard specifies values
for the rating of the creepages and clearances.
In the case of safe isolation, these values must be selected by means of
double or reinforced insulation.
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-10 A5E40534713002A/RS-AA/001
6.3 Application and areas of use
6.3.1 General information
Advantages The use of coupling links offers the following advantages:
• Galvanic isolation between two circuits
• Current gain
• Protects the controller from interference and overvoltage
• Substantially reduces the power input of switchgear
• Permits power gain or level adaptation
Applications Coupling links are used in:
• Production engineering
• Machine setup
• Process control in power distribution
• Building services automation
• Process engineering
Usage Coupling links are used for:
• Floating signal transmission
• Linking of different voltages (AC/DC) and currents
• Power gain
• Level adaptation
• Protection of the controller against EMC noise from the I/O
• Contact multiplication
Application example
Fig. 6-4: Application example, coupling links in box terminal format
M
110 V AC
230 V AC 24 V DC 24 V DC 110 V AC
230 V AC
Final controlling
element
Electronic
controller
I/O
Devices
In-
put
Out-
put
Pushbutton
Position
switch
Coupling
link
Cou-
pling
link
Motor
contactor
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-11
6.3.2 Criteria for selection
Coupling links are selected on the basis of a number of criteria:
Technical specifications See Section 6.7:
• Rated control supply voltage Us
• Typical power input
• Output elements
• Rated operational currents Ie
• Permissible line length
Mechanical
requirements
• Construction type, width
• Mounting type
• Indicators
• Connection type
• Replaceability
Selection table The following table provides an overview of the main criteria for selection
from different device groups:
Device group Criteria for selection
Two-tier coupling links • Space-saving due to narrow housing width
• Test switches
Coupling links in box terminal
format
• Low device height
• For installation given narrow tier spacing
Contactor relays for switching
main and auxiliary circuits
• High switching currents
• Direct switching of motors up to 11 kW
• Up to 4 auxiliary contacts
Plug-in relay coupling links • High switching currents
• Quickly interchangeable
• Up to 4 changeover contacts
Coupling links for attachment
to contactors
• Attachable directly onto the contactor
• Technical specifications of the contactor to be con-
trolled
Table 6-4: Selection criteria for the 3RH, 3TX, and LZX coupling links
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-12 A5E40534713002A/RS-AA/001
6.4 Accessories
6.4.1 Accessories for two-tier coupling links
Connecting lead The 24-pole connecting lead 3TX7004-8BA00 can be used for all two-tier
coupling links both with screw-type and Cage Clamp terminals:
Fig. 6-5: 24-pole connection lead for two-tier coupling links
Connection comb The 24-pole connection comb 3TX7004-8AA00 can be used for the 6.2 mm
wide two-tier coupling links with screw-type terminals:
Fig. 6-6: 24-pole connection comb for two-tier coupling links
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-13
End holder The end holder 8WA2808 is snapped onto the rail (EN 50 022) without
screws.
Screwdriver for Cage
Clamp terminal system
The screwdriver 8WA2804 is suitable when wiring coupling links with Cage
Clamp terminals.
End plate In order to ensure shock protection in the case of the two-tier optocouplers
having a width of 6.2 mm and with a housing opening (e.g. 3TX7 004-
3AB04), the individual module or last module in a series must be fitted with
an end plate 3TX7004-8CE00.
Labeling strip Each coupling link has a labeling strip for the purpose of identification.
6.4.2 Accessories for LZX plug-in relay coupling links
Retainer In situations where there is increased mechanical stress, a retainer can be
fitted to plug-in relay coupling links to provide stability.
LED module An LED can be fitted as an individual plug-in module with the variants
LZX:RT and LZX:PT.
Module with
flywheeling diode
A flywheeling diode for surge suppression can be fitted as a module
(for DC voltages) with the variants LZX:RT and LZX:PT.
RC module For AC voltages, there is a plug-in RC module available with the series
LZX:RT and LZX:PT for surge suppression.
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-14 A5E40534713002A/RS-AA/001
6.5 Mounting and connection
6.5.1 Mounting
Snap-on attachment The coupling links are snapped onto 35 mm rails in acc. with EN 50 022.
With a vertical rail and tightly packed devices, the permissible ambient tem-
perature TU is 60° C.
Any installation position is possible.
6.5.2 Connection
The coupling links are available with the SIGUT terminal system, with
screw-type terminals, or with Cage Clamp terminals.
Cage Clamp terminals Important
Risk of injury
When making connections using the Cage Clamp terminal system, you
should support your screwdriver with your finger to prevent the screwdriver
slipping.
Fig. 6-7: Cage Clamp terminals, coupling links
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-15
Conductor
cross-sections
The following table shows the permissible conductor cross-sections for the
coupling links. The specifications apply to main and auxiliary connections.
Table 6-5: Conductor cross-sections for the 3RH, 3TX, and LZX coupling links
3TX7004
3TX7002
Screw-type terminals
3TX7005
3TX7003
Cage Clamp terminals
LZX:
RT/ZT/MT
3RH1924
3TX7090
Screw-type terminals
∅ 3.5 mm M3 — — M3
1 x (0.25 to 4) mm² 1 x (0.08 to 2.5) mm² 2 x 2.5 mm² 2 x (0.5 to 2.5) mm²
1 x (0.5 to 2.5) mm² 1 x (0.25 to 2.5) mm² 2 x 1.5 mm² 2 x (0.5 to 1.5) mm²
10
10
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-16 A5E40534713002A/RS-AA/001
6.5.3 Device circuit diagrams
3RH1924
The following circuit diagrams are examples:
3RH1924-1GP11 with surge suppressor
¿ Coupling link
À Contactor
Relay coupling modules
3TX7 002/3TX7 003
3TX7002-.A.00 -1B.00 -1CB00 -1FB00
-1AB00
-2AF00
3TX7003-1AB00
-2BF02
Semiconductor
coupling modules
3TX7 002
3TX7 002-0AB00 -3AB01 -4AB00 4AG0.
NSB00182
L1 B2-B1+
A1
N
A2
U
U
2
1
L1
B2-B1+
L+ L-
A1
NSB00184
1
2
N
N
A2
L1
A1 13
A2 14
NSB00188
A1
A2 14
A2
11
12
NSB00189
A1
A2 A2
A1 13 23
14 24
NSB00190
A1
A2 14
11
12
NSB00191
24
21
12
A1
A2 14
11
12
NSB00192
A1 13
A2 14
NSB00193
A1
A2
NSB00194
13
14
A1 13
A2 14
NSB00195
A1 13
A2 14
NSB00196
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-17
Relay coupling modules
3TX7 004/3TX7 005
Output coupling links
3TX7 00.-1M.00 3TX7 00.-1AB10
3TX7 00.-1BB00 3TX7 00.-1L.0.
3TX7 00.-1BB10 3TX7 00.-1CB00
3TX7 00.-1HB00 3TX7 00.-1GB00
Relay coupling modules
3TX7 004/3TX7 005
Input coupling links
3TX7 00.-2M.02
A2
14
13
NSB00206
14
13
A2
A3
A1
A
0
M
A1
A2
14
13
NSB00205
A2
14
11
NSB00208
12
A1
A2
14
11
NSB00207
12
11
A2
A1
A1
A11
114
113
A21
A2
214
213
NSB00210
A2
A2
NSB00209
A2
A3
A1
14
11
12
11
A
0
M
A11
114
113
A21
214
213
NSB00211
A31
A2
314
313
A2
A2
A21
A21
A2
NSB00212
A11
A11
A2
A2
A2
114
111
112
111
214
211
212
211
A1
A2
14
13
NSB00213
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-18 A5E40534713002A/RS-AA/001
Semiconductor
coupling modules
3TX7 004/3TX7 005
Output coupling links
3TX7 00.-3AB04 3TX7 00.-3PB54
3TX7 00.-3AC04 3TX7 00.-3AC14
3TX7 00.-3AC03
Semiconductor
coupling modules
3TX7 004/7 005
Input coupling links
3TX7 00.-4AB04
Relay couplers
LZX: RT/PT/MT
LZX: RT3, 1-pole LZX: RT4, 2-pole
A1
A2
+13
14
NSB00214 Last
A1
A2
NSB00215
+13
14
0V
+
_
Last
A1
A2
NSB00216
A1
+13
+13
14
0V
A2
+
_
Last
A2
NSB00217
+13
+13
14
0V
A2
A3
A1
A
0
M
+
_
Last
A1
A2
NSB00218
A1
~13
~14
A2
~14
~13
Last
A1
A2
NSB01099
~13
~14
Last
A1
A2
+13
14
NSB00219 Last
NSB00247a
A1
A2
A1 12 11 14
22 21 24
NSB00248a
A1
A2
12 11 14
22 21 24
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-19
LZX: PT370, 3-pole LZX: PT570, 4-pole
LZX: MT32, 3-pole
Values in brackets: Plug-in base designations
Values without brackets: Contact/coil designations
(1)
12
NSB00249a
14
(4)
11(7)
A2(14)(13)A1
(2)
22
24
(5)
21(8)
(3)
32
34
(6)
31(9)
(1)
12
NSB00250a
14
(5)
11(9)
A2(14)(13)A1
(2)
22
24
(6)
21(10)
(3)
32
34
(7)
31(11)
(4)
42
44
(8)
41(12)
NSB00251a
(5)
22
(6)
21
(7)
24
(4)12 (8)32
(3)14 (9)34
(2)
A1
(10)
A2
(1)
11
(11)
31
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-20 A5E40534713002A/RS-AA/001
6.6 Dimensional drawings (dimensions in mm)
Two-tier coupling links 3TX7 004/3TX7 005
Relay couplers Relay couplers Relay couplers Relay couplers
3TX7 00.-1MB00 3TX7 00.-1AB10 3TX7 00.-1HB00 3TX7 00.-1GB00
3TX7 00.-1MF00 3TX7 00.-1BB00
3TX7 00.-1L . 0 . 3TX7 00.-1BB10
3TX7 00.-2M... 3TX7 00.-1CB00
3TX7 00.-1BF05
Optocouplers Optocouplers
3TX7 00.-3AB04 3TX7 00.-3AC04
3TX7 00.-4AB04 3TX7 00.-3AC14 1) Dimension 3TX7 004 coupling links (screw-type terminals)
3TX7 00.-3PB.. 3TX7 00.-3AC03 2) Dimension 3TX7 005 coupling links (Cage Clamp terminals)
3TX7 00.-3PG74
3TX7 00.-3RB43
3TX7 00.-4P . 24
Coupling links in box terminal format 3TX7 002/3TX7 003
3TX7 00.-1AB.. 3TX7 002-3AB00 3TX7 00.-1BB00 3TX7 00.-1CB00
3TX7 00.-2A... 3TX7 002-4A... 3TX7 00.-1BF00 3TX7 002-1BF02
3TX7 002-3AB01 3TX7 002-2BF02
Plug-in relay coupling links LZX: RT
Complete device LZX: RT3/RT4 Print relay LZX: RT3/RT4
Plug-in base LZX: RT78625 for print relays Plug-in base LZX: RT78626 with safe isolation for print relays
6,2
NSB00271
NSB00272
12,5
NSB00273
17,5
NSB00274
22,5
79
80
84
1)
2)
22.5
17.5
12.5
6.2
11,5
M3
NSB00268
NSB00284
12,5
M3
17,5
M3
NSB00269
NSB00270
M 3
62
22,5
60
17.5
12.5
11.5 22.5
29
2,6
15,73,8
12,7
NSB00276
NSB00275a
60
Haltebügel
Printrelais
LED-Modul
2.6 12.7
3.8 15.7
LED module
Print relay
Retaining bracket
NSB00277
75,5
22,2
4,5
43
15,5
75,5
22,2
4,5
15,5
NSB00278
4.5
75.5
22.2
15.5
75.5
15.5 22.2
4.5
61
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-21
Plug-in relay coupling links LZX: PT
Industrial relay LZX: PT570 Plug-in base LZX: PT78703 for industrial relays
Plug-in relay coupling links LZX: MT/MR
Industrial relay LZX: MT32 Plug-in base LZX: MR78750 for industrial relays
Coupling links 3RH/3TX
3RH1924-1GP11 3TX4090-0C 3TX4090-0D
28
296
NSB00279
2,2
22,5
NSB00280
75
22,2
4,5
42,5
22,5
73,1
27
LED-
Modul
Relais
Haltebügel
42.5
22.2
2.2
22.5 22.5 4.5
73.1
Relay
LED
module
Retaining bracket
38
62
NSB00282
9,3
4
26
24,2
1,5
100°
32,3
35,5
35,5
NSB00281
57
69
35.5
35.5
24.2
32.3
1.5
9.3
30,1
28
NSB00265
45
20
30,1
28
NSB00283
45
20
NSB00267
11 50
6
45
26
30.1
30.1
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-22 A5E40534713002A/RS-AA/001
6.7 Technical specifications
3TX70 relay coupling links
Table 6-6: Technical specifications, 3TX70 relay coupling links
3TX7004/3TX7005 semiconductor coupling links
Table 6-7: Technical specifications, 3TX7 004/3TX7 005 semiconductor coupling links
3TX7002/3TX7003 semiconductor coupling links
Table 6-8: Technical specifications, 3TX7 002/3TX7 003 semiconductor coupling links
Load side
Rated currents
Conventional free air thermal current Ith A3TX7 00 .-1A/-1B/-1C/-1H/-1G
63TX7 00 .-. L/- .M
6
Rated operational current Ie
by utilization categories
(DIN VDE 0660)
AC-15 DC-13 AC-15 DC-13
At 24 V
110 V
230 V
A
A
A
3
3
3
1. 0
0.2
0.1
2
2
2
1. 0
0.2
0.1
Current switched AC-12 DC-12 AC-12 DC-12
For resistive load
In acc. with DIN VDE 0435 (relay standard)
and DIN VDE 0660
At 24V
110 V A
A
A
6
6
6
6
0.3
0.2
6
6
6
6
0.3
0.2
Min. contact loading for 3TX7 00 . -1 . . 00 17VAC/VDC, 5mA 17VAC/VDC, 5mA
Min. contact loading for 3TX7 00 . -. . . 02 (hard gold-plating) 1 V AC/V DC, 0.1 mA 1 V AC/V DC, 0.1 mA
Performance limit/hard gold-plating 30 V/20 mA 30 V/20 mA
Switching voltage 17 to 250 V AC/V DC 17 to 250 V AC/V DC
Mechanical life 20 x 106 operating cycles 20 x 106 operating cycles
Electrical service life at Ie1 x 105 operating cycles 0.5 x 105 operating cycles
Switching frequency 1/h 5000 operating cycles 5000 operating cycles
Load side
Type 3TX7 004-/
3TX7 005-
3AB04/
4AB04
3AC.4 3AC03 4AB04 3PB54
Rated operating current IeA0.5520.51.5
Short-term current carrying capacity A
ms 1. 5
20 Short circuit-
proof 100
20 1.5
20 Short circuit-
proof
Contact elements 1 NO
contact
Transistor
1 NO
contact
Transistor
1 NO
contact
Triac
1 NO
contact
Transistor
1 NO
contact
Transistor
Switching voltage
(operating range) DC
≤ 48 V DC
≤ 30 V AC
50/60 Hz
24 to 250 V
DC
≤ 48 V DC
≤ 30 V
Minimum load current mA — — 50 — —
Voltage drop switched through V1 0.5 1.6 1 0.5
Leakage current of the electronics (at 0 signal) mA < 0.1 < 0.1 < 6 < 0.1 < 0.1
Switching frequency
For resistive load Hz 50 50 1 50 500
Load side
Type 3TX7 002- 3AB00 3AB01 4AB00 4AG00
Rated operating current IeA1.8 1.5
(See derating
diagram)
0.1 0.1
Short-term current carrying capacity A
ms 20
20 4
0.2 1
20 1
20
Contact elements 1 NO contact 1 NO contact 1 NO contact 1 NO contact
Triac Transistor Transistor Transistor
Switching voltage
(operating range) Effective
50/60 Hz
48 to 264 V AC ≤ 60 V DC ≤ 30 V DC ≤ 60 V DC
Minimum load current mA 60 — — —
Voltage drop switched through V≤ 1. 5 ≤ 1.1 ≤ 1. 7 ≤ 0.3
Leakage current
of the electronic components (at 0 signal) mA <5 <0.1 <0.1 0.001
Switching frequency at Ie1 Hz 1 Hz 5 Hz 5 Hz
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
A5E40534713002A/RS-AA/001 6-23
LZX: RT/PT
Table 6-9: Technical specifications, LZX: RT/PT
LZX: MT
Table 6-10: Technical specifications, LZX: MT
Relay type Print relay RT, 8-pole
(12.7 mm) 1 W/2 W
Industrial relay PT, 14-pole
(22.5 mm) 3 W/4 W
Load side
Switching voltage 24 to 250 VAC/VDC 24 to 250 VAC/VDC
Rated currents
Conventional free air thermal current Ith 16 A/8 A (1 W/2 W) 10 A/6 A (3 W/4 W)
Rated operating current Ie
by utilization categories
(DIN VDE 0660) at 24 V
230 V
AC-15 DC-13 —
6A/3A
6A/3A 2A
0.27 A —
—
Short-circuit protection
Fuse links, performance class gL/gG
DIAZED 10 A —
Min. contact loading
(reliability: 1 ppm)
12 VDC/10 mA —
Mechanical life 30 x 106
operating
cycles
10 x 106 10 x 106
Electrical life
(resistive load at 250 VAC) 1 x 105
operating
cycles
1 x 105 1 x 105
Relay type Industrial relay MT, 11-pole
(35.5 mm) 3 W
Load side
Switching voltage 24 to 250 VAC/VDC
Rated currents
Conventional free air thermal current Ith 10 A
Rated operating current Ie
by utilization categories
(DIN VDE 0660) at 24 V
230 V
AC-15 AC-13
5A
5A 2A
0.27 A
Short-circuit protection
Fuse links, performance class gL/gG
DIAZED
10 A
Min. contact loading
(reliability: 1 ppm)
12 VDC/10 mA
Mechanical life 20 x 106
operating cycles
Electrical service life
(resistive load at 250 VAC)
4 x 105
operating cycles
3RH, 3TX, LZX Coupling links
SIRIUS System Manual
6-24 A5E40534713002A/RS-AA/001
3RH1924/3TX7090
Table 6-11: Technical specifications, 3RH1924/3TX7090
Short-circuit protection
(unwelded fuse at Ik W 1 kA)
Fuse links, performance class gL/gG A 6
NH
DIAZED
NEOZED
Type 3NA
Type 5SB
Type 5SE
Load side
Mechanical life Operating
cycles
20 x 106
Electrical service life at IeOperating
cycles
1 x 105
Switching voltage V 24 to 250 V AC/V DC
Rated currents
Conventional free air thermal current Ith A6
AC-15 DC-13
Rated operating current Ie
by utilization categories
(DIN VDE 0660)
At 24 V
110 V
230 V
A
A
A
3
3
3
1.0
0.2
0.1
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-1
7
3RP20, 3RP15 Solid-state time relays
Section Subject Page
7.1 Specifications/regulations/approvals 7-2
7.2 Device description 7-3
7.2.1 Device types 7-3
7.2.2 Installation 7-5
7.2.3 Special features 7-5
7.2.4 Notes on configuration 7-6
7.2.5 Explanation of terms 7-7
7.3 Application and areas of use 7-8
7.3.1 Multifunction (3RP20 05 solid-state time relay) 7-8
7.3.2 Multifunctional (3RP15 05 solid-state time relay) 7-12
7.3.3 On-delay 7-18
7.3.4 Off-delay 7-19
7.3.5 Clock pulse generator (3RP15 55 solid-state time relay) 7-20
7.3.6 Wye-delta function (3RP15 74/76 solid-state time relay) 7-21
7.3.7 Wye-delta function with overtravel (3RP15 60 solid-state
time relay)
7-21
7.4 Accessories 7-22
7.4.1 Accessories for 3RP15 05, 3RP20 05 7-22
7.5 Mounting and connection 7-24
7.5.1 Mounting 7-24
7.5.2 Connection 7-25
7.5.3 Circuit diagrams 7-26
7.6 Dimensional drawings (dimensions in mm) 7-27
7.7 Technical Data 7-28
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-2 A5E40534713002A/RS-AA/001
7.1 Specifications/regulations/approvals
Standards The time relays comply with the following standards:
• IEC 61812-1/DIN VDE 0435 Part 2021 on electrical relays and time relays
• IEC 61000 on electromagnetic compatibility
• IEC 60947-5-1; DIN VDE 0660 Part 200 on low-voltage switchgear
• IEC 60721-3-1/-3 on environmental conditions
• IEC 60529 on degree of protection
Electromagnetic
compatibility
The time relays are tested in acc. with EN 50 081-1 (emission) and
EN 50 082-2 (immunity) and are thus noise-free and surge-proof.
Switching capacity The switching capacity complies with IEC 60947-5-1
• In the case of utilization category AC-15 and 230 V AC: 3 A
• In the case of utilization category DC-13 and 24 V DC: 1 A
• In the case of utilization category DC-13 and 48 V DC: 0.45 A
• In the case of utilization category DC-13 and 60 V DC: 0.35 A
• In the case of utilization category DC-13 and 110 V DC: 0.2 A
• In the case of utilization category DC-13 and 230 V DC: 0.1 A
UL/CSA/marine
approval
The SIMIREL time relays are approved by UL and CSA for use worldwide
and tested by the GL, LRS, DM marine authorities.
Approvals/
test reports
Confirmation of approvals, test certificates, and the declaration of confor-
mity can be obtained on the Internet/intranet.
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-3
7.2 Device description
Time relays are used for different control tasks in automatic production lines
and for processing machines.
They are suitable for all time-delayed switching operations in control,
starting, protective, and regulating circuits and ensure high repeatability of
the set run times.
7.2.1 Device types
Device types The SIMIREL 3RP1 time relays are available in the following forms:
• Single-function devices, such as the on-delay function
• Multifunctional devices
Frame sizes The SIMIREL 3RP1 time relays are available in two widths:
•3RP10: 45mm
The width, height, and depth of time relays and contactors of frame size
S00 (3RT/3RH10) are identical. The terminals are therefore on the same
level, and the tier spacing in the cubicle can be kept correspondingly low.
• 3RP15: 22.5 mm
Time relays with 1 changeover contact are 82 mm in height and have six
possible terminals
Time relays with 2 changeover contacts are 102 mm in height and have a
possible twelve terminals
View of the 3RP10
Fig. 7-1: 3RP1000 solid-state time relay, multifunctional
3RP10 features The features of the 3RP10 solid-state time relay:
• 1 changeover contact
• Eight selectable time ranges
• Adjustable runtime from 0.05 s to 10 h
• Contact position and voltage indication by means of LED
• Safe isolation between the control and load sides in acc. with
DIN VDE 0106 Part 101
• Combination voltage 24 V AC/V DC / 200-240 V AC and 24 V AC/V DC /
100-127 V AC
• Single-function device for the on-delay function
• Multifunctional device with 7 functions
18NO
15C
16NC A2-
3RP
A1B1A3+B3+
1s 10s
1min
100s
10min
1h
100min
10h
5100 %
20
40 60
80
Time-range selector switch
Runtime adjuster
LED indicators
Coding plug
for function selection
Device type plate
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-4 A5E40534713002A/RS-AA/001
View of the 3RP15
Fig. 7-2: 3RP15 solid-state time relay, multifunctional with 2 changeover contacts
3RP15 features The features of the 3RP15 solid-state time relays are:
• 1 changeover contact (8 functions)
• 2 changeover contacts (16 functions)
• Single or up to 15 selectable time ranges
• Contact position and voltage indication by means of LEDs
• Combination voltage 24 V AC/V DC / 200-240 V AC, and 24 V AC/V DC /
100-127 V AC
• Wide-range voltage variant for 24-240 V AC/V DC
• Single-function devices for the following functions:
- On-delay with 1 or 2 changeover contacts
- Off-delay with auxiliary supply and 1 changeover contact
- Off-delay without auxiliary supply and 1 or 2 changeover contacts
- Clock pulse generator with 1 changeover contact
- Star-delta with 2 NO contacts
- 2-wire, on-delay with semiconductor output
• Multifunctional time relay with 8 (1 changeover contact) or 16 functions
(2 changeover contacts)
Accessories 3RP10
Coding plug set for the multifunctional time relay with 7 functions
3RP15
• Label sets for the multifunctional time relay with 8 or 16 functions
• Sealable cap
• Push-in lugs for screw-type terminal
A3 B3
A1 B1
21/25/27C
15/17C
24/28NO
A2(-)
22/26NC
16NC
18NO
A
LED indicators
Time-range selector switch
Device type plate
Runtime adjuster
Function indicator window
Function selector switch
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-5
7.2.2 Installation
Attachment Snap-on attachment
All the time relays can be snapped onto 35 mm rails and removed without
tools in acc. with EN 50 022.
Screw-on attachment
3RP10: attachment openings are integrated in the device
3RP15: push-in lugs for screw-type attachment are available as accessories
Connection The terminals of the 3RP1 time relays are designed for connections of the
control cables with a maximum stripped length of 10 mm. Cross-sections of
2 x 0.5 to 2.5 mm2 (single-coil) and 2 x 0.5 to 1.5 mm2 (single-coil) can be
clamped with a wire end ferrule.
Screw-type terminal (SIGUT® terminal)
The 3RP10 and 3RP15 time relays are available with plus-minus Pozidriv 2
screw-type connections.
Springloaded terminal
The 3RP10 and 3RP15 time relays are available with springloaded terminals.
7.2.3 Special features
Operating temperature There are no restrictions on the control supply voltage, switching current,
or duty cycle for operation between -25 °C to +60 °C.
Time ranges There are up to 15 time settings, ranging from 0.05 s to 100 h. The 3RP15
has additional time settings between the decade scales (1/10/100 s/min/h)
that make high setting accuracy possible.
Wide-range voltage There are multifunctional relays with a wide voltage range of 24 V AC/V DC
to 240 V AC/V DC.
Electrical service life The electrical service life with contactor load (e.g. 3RT1016 contactor) is
10 million operating cycles.
The electrical service life at AC voltage of 230 V, utilization category AC-15/
3 A, and at DC voltage, utilization category DC-13/1 A, is 100,000 operating
cycles.
Start contact In the case of functions that require a continuous auxiliary supply to termi-
nals A1/A2 and A3/A2, the time function can be started by a control supply
voltage to terminal B1 or B3.
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-6 A5E40534713002A/RS-AA/001
7.2.4 Notes on configuration
The following specifications must be complied with to ensure error-free
operation of the solid-state time relays:
Start input Only apply the control supply voltage from start input B1 or B3 once the
supply voltage has already been applied to A1/A2 or A3/A2.
Identical potential Identical potential must be applied to terminals A1 and B1 or A3 and B3.
Combination voltage In the case of combination voltage types, only one voltage range can be
connected. Never apply the two control supply voltages simultaneously.
Parallel load at the start
contact
The start contact is under voltage and rectified. There is a connection in the
time relay to the A1 and A2 terminals. The control of loads parallel to the
start input is therefore not permissible at AC 50/60 Hz control supply
voltage.
The following information facilitates configuration of SIMIREL 3RP time
relays:
Combination/
wide-range voltages
80 % of the time relay types are combination and wide-range voltage types
because they are flexible in their uses:
– Combination voltage: two operating voltage ranges (e.g. 24 V AC/V DC
and 200 to 240 V AC) at different terminals
– Wide-range voltage: one operating voltage range from 24 V AC/V DC to
240 V AC/V DC at the same terminals
Two-wire time relay Two-wire time relays have the following advantages over conventional time
relays in connection with contactors:
– Reduced wiring
– Bounce-free control
– The electronic output increases service life because no mechanical wear
occurs
– Greater switching frequency
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-7
Special functions • Pulsing function: pulse and idle time can be set separately.
• Flashing: the pulse/break ratio is 1:1.
• The timing period starts with the "off-delay without auxiliary supply" func-
tion if the time relay is separated from the supply voltage.
• In the case of the 3RP15 time relay with 15 selectable time settings,
there is a ∞ switch position. This means an endless timing period. If this
setting is chosen for the on-delay function, the output relay never
switches through after the supply voltage has been applied (off function).
In the case of the "making pulse contact" function, the output relay always
remains on (on function). This can be used for test purposes.
• In the case of the "additive on-delay with auxiliary supply" function, the
time is added for as long as the start contact is activated. If the start con-
tact is interrupted, the timing period stops and is then continued once the
start contact is closed again.
This function is not non-volatile and requires a continuous auxiliary power
supply.
• In the case of the "shaping pulse contact with auxiliary supply" function,
an activated start contact triggers a timing period that can be set. The
control signal for this can be shorter or longer than the desired runtime.
Cable ducts If you use cable ducts for wiring, the position and dimensions of the termi-
nal blocks must be taken into consideration (see pages 7-27).
7.2.5 Explanation of terms
Setting accuracy Setting accuracy is the accuracy in relation to the end value of the scale in
line with the specified tolerance.
Repeatability Repeatability describes the accuracy with which the set value can be repro-
duced with the specified tolerance.
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-8 A5E40534713002A/RS-AA/001
7.3 Application and areas of use
7.3.1 Multifunction (3RP20 05 solid-state time relay)
The time relay contains one or two SPDT contacts.
Operating time
adjustment
15 time ranges can be set by means of a rotary switch.
The desired runtime can be set accurately by means of a potentiometer
(rotary switch for fine adjustment).
Important
Changes to the time range are only effective if they are made in a deener-
gized state.
Example You want to set a duration of 5 seconds:
Fig. 7-3: 3RP20 05 (multifunctional) operating time adjustment
Functions You can select 8 different functions with the integrated function setting dial.
Important
Changes to the function are only effective if they are made in a deenergized
state.
Step Procedure
1
Rotate the time range selector switch to 10 s. This means
runtimes of up to 10 seconds can be set.
2Rotate the potentiometer to 50 % for fine adjustment. In
other words, 50 % (= 5 seconds) of the maximum value
(10 seconds) is set.
Table 7-1: 3RP20 05 (multifunctional) operating time adjustment)
1 s 10 s
1 min
100 s
10 min
1 h
100 min
10 h
5100%
20
40 60
80
5s:
1. 5 m i n
(90s):
18NO
15C
16NC A2-
3RP
A1B1A3+B3+
1s 10s
1min
100s
10min
1h
100min
10h
1s 10s
1min
100s
10min
1h
100min
10h
1s 10s
1min
100s
10min
1h
100min
10h
5100 %
20
40 60
80
5100 %
20
40 60
80
5100 %
20
40 60
80
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-9
Function diagrams The label set, for labeling the set function on the solid state time relay
3RP2005- .A, contains the functions shown in the following table:
Table 7-2: 3RP20 05-. A (multifunctional) circuit diagrams and function diagrams
Function Circuit diagram Function diagram
1 SPDT
On-delay
Off-delay with auxiliary supply
On-delay and off-delay with auxiliary
supply
(t=tan =tab)
Flashing,
start with break
(pulse/break 1:1)
Passing make contact
Breaking pulse contact with auxiliary
supply
Pulse shaping contact with auxiliary
supply
Additive ON-delay with auxiliary voltage
time relay energized
contact closed
contact open
t
NSB00858
15/16
A1/A2
15/18
A1/A2
15/18
15/16
t
35 ms
NSB00859
B1/A2
>
tt
NSB00861
15/16
A1/A2
15/18
B1/A2
NSB00862
tt
15/16
A1/A2
15/18
NSB00864
t
A1/A2
15/18
15/16
t
NSB00865
35 ms
>
A1/A2
15/18
15/16
B1/A2
t
NSB00867
>
A1/A2
15/18
15/16
B1/A2
35 ms
t
NSB00868
t1t2t3
A1/A2
15/18
15/16
B1/A2
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-10 A5E40534713002A/RS-AA/001
The label set, for labeling the set function on the solid state time relay
3RP2005- .B, contains the functions shown in the following table:
Function Circuit diagram Function diagram
2 SPDT
ON-delay
ON-delay and instantaneous contact
OFF-delay with auxiliary voltage
OFF-delay with auxiliary voltage and
instantaneous contact
ON-delay and OFF-delay with auxiliary
voltage
(t=tan =tab)
ON-delay and OFF-delay with auxiliary
voltage and instantaneous contact
(t=tan =tab)
Flashing,
start with break
(pulse/break 1:1)
Flashing,
start with break
(pulse/break 1:1)
and instantaneous contact
time relay energized
contact closed
contact open
t
NSB00871
A1/A2
15/18
15/16
25/28
25/26
15/18
15/16
t
A1/A2
NSB00872
21/24
21/22
t
NSB00873
>
A1/A2
15/18
15/16
B1/A2
25/28
25/26
35 ms
15/18
15/16
t
35ms
21/24
21/22
NSB00874
A1/A2
B1/A2
>
15/18
15/16
t
25/28
25/26
A1/A2
B1/A2
t
NSB00876
15/18
15/16
t
21/24
21/22
A1/A2
B1/A2
t
NSB00877
15/18
15/16
t
A1/A2
25/28
25/26
t
NSB00878
15/18
15/16
21/24
21/22
NSB00879
A1/A2
t t
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-11
Table 7-3: 3RP20 05-.B (multifunctional) circuit diagrams and function diagrams
Important
The same potential must be applied to terminals A and B.
A./A2 q A1/A2 or A3/A2, depending on the voltage level connected
B./A2 q B1/A2 or B3/A2, depending on the voltage level connected
Passing make contact
Passing make contact and instanta-
neous contact
Passing break contact with auxiliary
voltage
Passing break contact with auxiliary
voltage and instantaneous contact
Pulse shaping with auxiliary voltage
(creates a pulse at the output irrespec-
tive of the length of excitation)
Pulse shaping with auxiliary voltage and
instantaneous contact
(creates a pulse at the output irrespec-
tive of the length of excitation)
Additive ON-delay with auxiliary voltage
and instantaneous contact
Wye-delta function
Function Circuit diagram Function diagram
15/18
15/16
t
A1/A2
25/28
25/26
NSB00880
15/18
15/16
21/24
21/22
NSB00881
A1/A2
t
15/18
15/16
t
25/28
35ms
NSB00882
>
25/26
B1/A2
A1/A2
15/18
15/16
t
35ms
21/24
21/22
NSB00883
A1/A2
B1/A2
>
15/18
15/16
t
25/28
25/26
A1/A2
B1/A2
35ms
NSB00884
>
15/18
15/16
21/24
21/22
A1/A2
B1/A2
t
NSB00885
35ms
>
15/18
15/16
21/24
21/22
A1/A2
B./A2
NSB01381
t
1t3
2
tt
t
A1/A2
50ms
17/18
27/28
NSB00888
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-12 A5E40534713002A/RS-AA/001
7.3.2 Multifunctional (3RP15 05 solid-state time relay)
Operating time
adjustment
Fifteen time ranges can be set using a rotary switch, ensuring very precise
adjustment. The set time range is displayed in a window next to the rotary
switch.
The desired runtime can be set accurately by means of a potentiometer
(rotary switch for fine adjustment).
In the time range position ∞ the function is executed with an endless time
period. This means, for example, that the output relay never switches
through when "on-delay" is set and the supply voltage is applied or that the
output relay remains continuously on when "making pulse contact" is set.
Important
Changes to the time range are only effective if they are made in a deener-
gized state.
Example You want to set a 90 second period:
Step Procedure
1Rotate the time range selector switch until 100 s
appears in the adjacent window. This means runtimes
of up to 100 seconds can be set.
2Rotate the potentiometer to 90 %. In other words
90 % (= 90 seconds) of the maximum value
(= 100 seconds) is set.
Table 7-4: 3RP15 05 (multifunctional) operating time adjustment
100s
5100%
20
40 60
80
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-13
Fig. 7-4: 3RP15 05 (multifunctional) operating time adjustment
Functions The following can be set by means of a rotary switch.
• Time relay with 1 changeover contact: 8 functions
• Time relay with 2 changeover contacts: 16 functions
Important
Changes to the function are only effective if they are made in a deenergized
state.
5s:
1. 5 m i n
(90 s):
A3 B3
A1 B1
21/25/27C
15/17C
24/28NO
A2(-)
22/26NC
16NC
18NO
5100 %
20
40 60
80
A
5100 %
20
40 60
80
10s
100s
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-14 A5E40534713002A/RS-AA/001
Function setting The function is set using a rotary switch and is indicated by an identifying
letter in the adjacent window.
The set function can be labeled distinctly with an identification plate with
the corresponding function diagram. At the same time, a mechanical code
ensures that the correct function is set by ensuring that a label can only be
clipped on if the corresponding function is set using the rotary switch.
A label set with function diagrams of all the functions that can be set for the
time relay is available as an accessory.
Break the label of the set function out of the label set, and snap it firmly
onto the time relay as shown in the following diagram:
Fig. 7-5: 3RP15 05 (multifunctional) function identification
1
2
3RP19 01-0A (3RP15 05-1A)
3RP19 01-0B (3RP15 05-1B)
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-15
Identifying letters The following table lists the identifying letters for the 8 or 16 functions of
the solid-state multifunctional 3RP15 05 time relay:
The "•" after the identifying letter indicates that the second changeover con-
tact present reacts as an immediate switching contact (controlled by the
supply voltage or the start contact depending on the function). If this "•" is
not present, the second changeover contact reacts with a time delay like the
first changeover contact.
Function
Identifying
letter with time
relay with
1 changeover
contact
Identifying
letter with time
relay with
2 changeover
contacts
On-delay A A
Off-delay with auxiliary supply B B
On-delay and off-delay with auxiliary supply C C
Flashing, start with break D D
Making pulse contact E E
Breaking pulse contact with auxiliary supply F F
Shaping pulse contact with auxiliary supply G G
Additive on-delay with auxiliary supply (and
immediate switching only H•)
HH
•
On-delay and immediate switching A•
Off-delay with auxiliary supply B•
On-delay and off-delay with auxiliary supply
and immediate switching
C•
Flashing, start with break, and immediate
switching
D•
Making pulse contact and immediate
switching
E•
Breaking pulse contact with auxiliary supply
and immediate switching
F•
Shaping pulse contact with auxiliary supply
and immediate switching
G•
Wye-delta function ?*d
Table 7-5: 3RP15 05 (multifunctional) assignment of the identifying letters
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-16 A5E40534713002A/RS-AA/001
Function diagrams
Circuit diagrams
The following table explains the 8 or 16 functions of the solid-state multi-
functional 3RP15 05 time relay using circuit diagrams and function dia-
grams:
Identifying letter Device circuit
diagrams Function diagram
A
ON-delay
B
OFF-delay with auxiliary
voltage
C
ON-delay and OFF-delay
with auxiliary voltage
(t=tan=tab)
D
Flashing,
start with break
(pulse/break 1:1)
E
Passing make contact
F
Passing break contact
with auxiliary voltage
G
Pulse shaping with
auxiliary voltage
(creates a pulse at the
output irrespective of the
length of excitation)
H•
Additive ON-delay with
auxiliary voltage and
instantaneous contact
Table 7-6: Function diagrams (3RP15)
A3 15
A2 18
NSB00897
16
A1
AC/DC24V
AC100/127V
AC200/240V
A./A2
15/18
15/16
25/28
25/26 *
NSB00898
AC100/127V
AC200/240V
A1 15
A2 18
16
A3B1 B3
25/28
25/26
A./A2
B./A2
15/18
15/16
*
NSB00899
AC/DC24V
AC100/127V
AC200/240V
A1 15
A2 18
16
A3B1 B3
25/28
25/26
A./A2
B./A2
15/18
15/16
*
A3 15
A2 18
NSB00900
16
A1
AC/DC24V
AC100/127V
AC200/240V
~
A./A2
25/28
25/26
15/18
15/16
*
A3 15
A2 18
NSB00901
16
A1
AC/DC24V
AC100/127V
AC200/240V
A./A2
15/18
15/16
25/28
25/26 *
NSB00902
AC/DC24V
AC100/127V
AC200/240V
A1
A2
A3B1 B3 15
1816
25/28
25/26
A./A2
B./A2
15/18
15/16
*
NSB00903
AC/DC24V
AC100/127V
AC200/240V
A1
A2
A3B1 B3 15
1816
25/28
25/26
A./A2
B./A2
15/18
15/16
*
NSB00904
AC/DC24V
AC100/127V
AC200/240V
A1 15
A2 18
16
A3B1 B3
Σ
21/24
21/22
A./A2
B./A2
15/18
15/16
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-17
* Only with devices with 2 changeover contacts
A•
ON-delay and instanta-
neous contact
B•
OFF-delay with auxiliary
voltage and instanta-
neous contact
C•
ON-delay and OFF-delay
with auxiliary voltage and
instantaneous contact
(t=tan=tab)
D•
Flashing,
start with break
(pulse/break 1:1) and
instantaneous contact
E•
Passing make contact and
instantaneous contact
F•
Passing break contact
with auxiliary voltage and
instantaneous contact
G•
Pulse shaping with
auxiliary voltage and
instantaneous contact
(creates a pulse at the
output irrespective of the
length of excitation)
*d
Wye-delta function
Identifying letter Device circuit
diagrams Function diagram
Table 7-6: (cont.) Function diagrams (3RP15)
A3 15
A2 18
16
A1
AC/DC24V
AC100/127V
AC200/240V
21
24
NSB00917
22
A./A2
15/18
15/16
21/24
21/22
NSB00918
AC/DC24V
AC100/127V
AC200/240V
A1 15
A2 16
A3B1 B3
18
21
24
22
21/24
21/22
A./A2
B./A2
15/18
15/16
NSB00919
AC/DC24V
AC100/127V
AC200/240V
A1 15
A2 16
A3B1 B3
18
21
24
22
21/24
21/22
A./A2
B./A2
15/18
15/16
A3 15
A2 18
16
A1
AC/DC24V
AC100/127V
AC200/240V
21
24
NSB00920
22
~
A./A2
21/24
21/22
15/18
15/16
A3 15
A2 18
NSB00921
16
A1
AC/DC24V
AC100/127V
AC200/240V
21
2422
A./A2
15/18
15/16
21/24
21/22
NSB00922
AC/DC24V
AC100/127V
AC200/240V
A1
A2
A3B1 B3 15
1816
21
24
22
21/24
21/22
A./A2
B./A2
15/18
15/16
NSB00923
AC/DC24V
AC100/127V
AC200/240V
A1
A2
A3B1 B3 15
1816
21
24
22
21/24
21/22
A./A2
B./A2
15/18
15/16
A3
Y18
A2
NSB00924
17
A1
AC/DC24V
AC100/127V
AC200/240V
d28
27
A./A2
17/18
27/28
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-18 A5E40534713002A/RS-AA/001
7.3.3 On-delay
3RP20 25 solid-state time relay
The time relay contains 1 changeover contact.
Time ranges 15 time ranges can be set by means of a rotary switch.
Important
Changes to the time range are only effective if they are made in a deener-
gized state.
Function diagram
Fig. 7-6: 3RP20 25 function diagram
The 3RP15 11/12/13 solid-state time relay
The time relay contains 1 changeover contact.
Time ranges Fixed time ranges are offered: 10 s, 30 s, 100 s
Function diagram
Fig. 7-7: 3RP15 1. function diagram
The 3RP15 25 solid-state time relay
The time relay is available with either 1 or 2 changeover contacts.
Time ranges Fifteen time ranges can be set by means of a rotary switch.
Important
Changes to the time range are only effective if they are made in a deener-
gized state.
ansprechverzögert
ON DELAY
A./A2
15/18
15/16
ansprechverzögert
A./A2
15/18
15/16
ON DELAY
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-19
Function diagrams The function diagram for the time relay with 1 changeover contact and with
2 changeover contacts:
Fig. 7-8: 3RP15 25 function diagram
The 3RP15 27 solid-state time relay (two-wire time relay)
The two-wire time relay is connected in series with the load. The timing
period begins after the control supply voltage has been applied. The semi-
conductor output then becomes live, and voltage is applied to the load.
Time ranges Four time ranges can be set by means of a rotary switch.
Important
Attention must be paid to the rated operational current, residual current with
unswitched output, and voltage drop in the case of a switched output.
Function diagram
Fig. 7-9: 3RP15 27 Function diagram
7.3.4 Off-delay
The 3RP15 31/32/33 solid-state time relay with auxiliary supply
The time relay contains 1 changeover contact.
Time ranges Fixed time ranges are offered: 10 s, 30 s, 100 s
Function diagram
Fig. 7-10: 3RP15 3. function diagram
There is continuous auxiliary voltage (A./A2) at the time relay. If a control
supply voltage is applied to the start contact, the output relay switches over.
ansprechverzögert
2 SPDT
1 SPDT
ansprechverzögert
ON DELAY
A./A2
15/18
15/16
25/28
25/26
A./A2
15/18
15/16
ON DELAY
ansprechverzögert
ON DELAY
A1/A2
rückfallverzögert
OFF DELAY
A./A2
B./A2
15/18
15/16
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-20 A5E40534713002A/RS-AA/001
After the start contact is disconnected, the set runtime starts. The minimum
on-time of ≥35 ms must be adhered to.
The 3RP15 40 solid-state time relay without auxiliary supply
The time relay is available with either 1 or 2 changeover contacts.
Time ranges Seven time ranges can be set by means of a rotary switch. Times ranging
from 0.05 to 100 s are possible.
Important
Changes to the time range are only effective if they are made in a deener-
gized state.
Function diagrams
The function diagram for the time relay with 1 changeover contact and with
2 changeover contacts:
Fig. 7-11: 3RP15 40 Function diagram
Mode of operation When the rated control supply voltage is applied, the time relay switches
over. After the rated control supply voltage has been disconnected, the run-
time t starts. After t has finished, the relay switches back to the quiet state.
If the minimum on-time is not adhered to, it is ensured that either the timing
period will not start or that a started timing period will always be properly
completed.
Intermediate states in the function process, such as the relay getting stuck,
are successfully prevented.
7.3.5 Clock pulse generator (3RP15 55 solid-state time relay)
Description The idle time and the pulse time of the clock pulse generator and the time
ranges must be set separately.
The pulsing function begins with the break.
The time relay contains a changeover contact.
Time ranges Fifteen time ranges can be set by means of a rotary switch.
Important
Changes to the time range are only effective if they are made in a deener-
gized state. A pulse, for example, can be output cyclically for 1 second after
a break of 1 hour.
rückfallverzögert
OFF DELAY
25/28
25/26
A1/A2
15/18
15/16
2
rückfallverzögert
OFF DELAY
A1/A2
15/18
15/16
2
2 SPDT1 SPDT
25/28
25/26
A1/A2
15/18
15/16
2
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-21
Function diagram
Fig. 7-12: 3RP15 55 function diagram
7.3.6 Wye-delta function (3RP15 74/76 solid-state time relay)
Description The instantaneous star contact and the time-delayed delta contact have a
shared contact root.
To avoid phase short circuits, the switch-over break from star to delta is
50 ms.
Time ranges The time relay offers a fixed time range: 20 s, 60 s
Function diagram
Fig. 7-13: 3RP15 7. function diagram
7.3.7 Wye-delta function with overtravel (3RP15 60 solid-state time relay)
Description Supply voltage is applied to A./A2 and there is no control signal at B./A2.
This starts the *d timing period. By applying the control signal to B./A2,
the idling time (overtravel time) is started. When the set time tIdling (30 s to
600 s) is completed, the output relays (17/16 and 17/28) are reset. If the con-
trol signal is switched off at B./A2 (minimum off-time 270 ms), a new timing
period is started.
Time ranges Star-delta time 1 s to 20 s
Overtravel time: 30 s to 600 s
Function diagram
Fig. 7-14: 3RP15 60 function diagram
Taktgeber
CLOCK PULSE
A./A2
15/18
15/16
Pausenzeit
Interval time
Impulszeit
Impuls time
Stern/Dreieck
STAR/DELTA
A./A2
17/18
17/28
A./A2
17/28
17/16
*
B./A2
17/18
Idling
50 ms
tt
Stern/Dreieck mit Nachlauf
STAR/DELTA with idling
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-22 A5E40534713002A/RS-AA/001
7. 4 A c c e s s o r i e s
7.4.1 Accessories for 3RP15 05, 3RP20 05
Label Sets Two label sets are available to the 3RP15 05 and 3RP20 05 solid-state time
relay, multifunction device for labeling, depending on the version (8 func-
tions with 1 changeover contact, 16 functions with 2 changeover contacts:
• 3RP19 01-0A for the 3RP15 05-1A, 3RP20 05-.A, electronic relays, 1 SPDT
• 3RP19 01-0B for the 3RP15 05-1B, 3RP20 05-.B, electronic relays, 2 SPDT
The following table shows you how to set the function on the time relay and
put on the label:
Illustration Step Procedure
1The desired function is set on the
potentiometer of the time relay
using a screwdriver.
2The corresponding label identifying
the set function is clipped on.
Table 7-7: Label set (3RP15, 3RP20 05)
3RP19 01-0A (3RP15 05-.A)
3RP19 01-0B (3RP15 05-.B)
2
1
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-23
Sealable cover All 3RP15 solid-state time relays can be secured against unauthorized
adjustment by means of a sealable cover (3RP19 02). The following table
and illustration explain how to do this:
Push-in lugs for screw-
type attachment
Push-in lugs (3RP19 03) are available for panel mounting:
Fig. 7-15: Panel mounting
Illustration Step Procedure
1Break off the key for interlocking from
the upper edge of the cover.
2Use the hook to put the cover in the
openings to the side of the device
identification label.
3Move the cover toward the time relay.
4Hook the key onto the time relay
through the slit in the cover to attach
the cover to the time relay.
5/6 Pull the seal through the opening of
the key.
Table 7-8: Sealable cover
3RP19 02
1
2
3
4
5
6
3RP19 03
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-24 A5E40534713002A/RS-AA/001
7.5 Mounting and connection
7.5.1 Mounting
3RP20
DIN rail mounting The 3RP20 time relays can be snapped onto the 35 mm DIN rails and
removed without tools in acc. with EN 50 022.
Place the time relay on the upper edge of the rail, and press it downward
until it snaps onto the lower edge of the rail. To remove the time relay, press
it downward to release the tension of the spring, and the time relay can be
removed.
Fig. 7-16: 3RP20: mounting on and removal from a 35 mm rail
Panel mounting The following is required for panel mounting of the 3RP20 time relay:
• 2 M4 screws, diagonal
• Maximum tightening torque of 10.5 Nm
• Washers and spring lock washers must always be used
• The distance to grounded parts at the side must be more than 6 mm
3RP15
DIN rail mounting The 3RP15 time relays can be snapped onto the 35 mm DIN rails and
removed without tools in acc. with EN 50 022.
Place the time relay on the upper edge of the rail, and press it downward
until it snaps onto the lower edge of the rail. To remove the time relay, press
it downward to release the tension of the spring, and the time relay can be
removed.
Fig. 7-17: DIN rail mounting
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-25
Panel mounting Panel mounting is possible by means of push-in lugs for M4 screws (applica-
tion, see under Section 7.4 "Accessories)"
7.5.2 Connection
The 3RP20 solid-state time relays are available with SIGUT terminals with
plus/minus Pozidriv 2 screws and also with Cage Clamp terminals.
The 3RP15 solid-state time relays are available:
•With SIGUT
terminals with plus/minus Pozidriv 2 screws
• With Cage Clamp terminals
Conductor
cross-sections
The following table lists the permissible conductor cross-sections for the
3RP1 solid-state time relays. The specifications apply to control and load
current connections.
The following illustration shows you the springloaded terminal:
Fig. 7-18: Connection of the springloaded terminal
3RP20.5-1
3RP20.5-2
(springloaded
terminal)
3RP15
3RP15..-2
(springloaded
terminal)
∅
5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb·in —0.8 to 1.2 Nm
7 to 10.3 lb·in —
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 4 mm²) 2 x (0.25 to 2.5 mm²) 1 x (0.5 to 4 mm²)
2 x (0.5 to 2.5 mm²) 2 x (0.25 to 1.5 mm²)
2 x (0.5 to 2.5 mm²) 2 x (0.25 to 1 mm²) 1 x (0.5 to 2.5 mm²)
2 x (0.5 to 1.5 mm²) 2 x (0.25 to 1 mm²)
— 2 x (0.25 to 1.5 mm²) — 2 x (0.25 to 1.5 mm²)
AWG
2 x (18 to 14) 2 x (24 to 14) 2 x (20 to 14) 2 x (24 to 16)
Table 7-9: Permissible conductor cross-sections for control and load current connections
10
10
10
2
1
3
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-26 A5E40534713002A/RS-AA/001
7.5.3 Circuit diagrams
3RP20
3RP20 circuit diagrams
3RP15
3RP15 circuit diagrams
Us = AC 200/240 V
B1 A1 15
16 18A2
Us = AC 100/127 V
A3B3
L1
N
Us = AC/DC 24 V
B1 A1 15
16 18A2
A3B3
L1(+)
N(-)
A2
K1
K1 S1
L1
N
A1
(A3+)
B1
(B3+)
L1
NA2
K1
S1
A1
(A3+)
B1
(B3+)
L1
NA2
K1
S1
A1
(A3+)
B1
(B3+)
Us = AC/DC 42 ... 48 V
Us = AC/DC 24 V
B1 A1
A2
A3B3
L1(+)
N(-)
Us = AC 200 ... 240 V
B1 A1
A2
Us = AC 100 ... 127 V
A3B3
L1
N
Us = AC/DC 60 V
Us = AC/DC 24 ... 240 V
A2
K1
K1 S1
L1
N
A1
(A3+)
B1
(B3+)
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
A5E40534713002A/RS-AA/001 7-27
7.6 Dimensional drawings (dimensions in mm)
3RP1/2 time relay
3RP20
3RP15, 1 changeover contact without auxiliary supply5) , clock pulse generator, wye-delta function
3RP15, 1 and 2 changeover contact devices with auxiliary supply
1) Push-in lug for screw-type attachment
3) Coding plug (with 3RP10) or identification label
4) Drilling pattern
5) Except 3RP15 05-1A.30 two-wire design
6) Identification label
8.6 5.3
36
55
58
551
67
2)
45 7.5
NSB00978
35
5
3)
50
4)
62
90
15
22.5
80
73.5
86
5
NSB00980
4)
1)
ca. 65 (Terminal)
80
73.5
5
NSB00981
100
86
62
110
15
22.5
4)
1)
82
ca. 37 (Terminal)
ca. 65 (Terminal)
3RP20, 3RP15 Solid-state time relays
SIRIUS System Manual
7-28 A5E40534713002A/RS-AA/001
7.7 Technical Data
Technical Data according to IEC 61812-1/DIN VDE 0435 part 2021
1) If not specified otherwise
2) Maximum making current peak 1 A/100 ms
3) With 3RP15 05-.R: NC contact −> Ie = 1 A
4) Without any welding in acc. with IEC 60 947-5-1.
5) With 3RP15 05.-BW30/ .AW30/ .RW30 and 3RP15 25-.BW30 voltage-dependent 10 to 250 ms.
6) Minimum on-time with 3RP15 00-. BW30 150 ms until instantaneous contact is switched.
7) Adhere to minimum on-time for problem-free functioning.
Type 3RP20 05 3RP15 05 3RP15 11 3RP15 40 3RP15 60 3RP15 74 3RP15 27
3RP20 25 3RP15 31 3RP15 12 3RP15 76
3RP15 32 3RP15 13
3RP15 33 3RP15 25
3RP15 55
Rated insulation voltage AC V 300; 500 with 3RP1505-1BT20
Pollution degree 3
Overvoltage category III in acc. with DIN VDE 0110
Excitation operating range 1) 0.85 to 1.1 x Us with AC; 0.8 to 1.25 x Us with DC
0.95 to 1.05 times the rated frequency
Rated power W1222221
Power input at 230 V AC, 50 Hz VA 4 6 6 2 2)6 6 1
Rated operational currents Ie
AC-15 at 230 V AC, 50 Hz A 33) —
AC-14; DC-13 — 0.01 to 0.6
DC-13 at 24 V 1 —
DC-13 at 48 V 0.45 —
DC-13 at 60 V 0.35 —
DC-13 at 110 V 0.2 —
DC-13 at 230 V 0.1 —
DIAZED fuse 4)
Performance class gL/Gg A 4 —
Switching frequency
• Loaded with Ie 230 VAC 1/h 2500 5000
• Loaded with 3RT10 16 contactor, 230 V AC 1/h 5000 5000
Recovery time ms 150 5)30015050
Minimum on-time ms 35 35 6)— 200
7)—
Residual current mA ≤ 5
With output not switched through
Voltage drop V≤ 3.5
Switched through
Short-term current-carrying capac-
ity
A10
(to 10 ms)
Setting accuracy typical ±5 %
Related to the end of scale value
Repeatability ≤ ±1 %
Mechanical service life Operating cycles 30 x 106100 x 106
Permissible ambient temperature In operation °C -25 to +60
During storage °C -40 to +85
Degree of protection IP40 Deckel
In acc. with EN 60 529 IP20 terminals
Shock resistance g/ms 15/11
Half-sine in acc. with IEC 60 068-2-27
Vibration resistance in acc. with IEC 60 068-2-6 Hz/mm 10-55 / 0.35
EMC tests IEC 61 000-6-2 / EN 50 081-1
In acc. with the basic specification
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-1
8
3RW3 Semiconductor motor control unit
(soft starter)
Section Subject Page
8.1 Specifications/regulations/approvals 8-3
8.2 Device description 8-5
8.2.1 Physical principles 8-6
8.2.2 General device description 8-10
8.2.3
Comparison of the 3RW3 semiconductor motor con-
trol unit (soft starter) with the SIKOSTART 3RW22 and
SIKOSTART 3RW34 motor control units
8-14
8.2.4
Comparison of the 3RW3 semiconductor motor con-
trol unit (soft starter) with the 3RA star-delta combina-
tion
8-16
8.2.5 Notes on configuration 8-16
8.3 Application and use 8-18
8.3.1 Areas of application and criteria for selection 8-18
8.3.2 Installation guidelines 8-18
8.3.3 Overview tables: correction factors 8-21
8.3.3.1 3RW30/31 soft starters in a stand-alone installation 8-21
8.3.3.2 3RW30/31 soft starters in combination with the 3RV1
circuit breaker 8-22
8.3.3.3 Combining the 3RT contactor with the 3RU1 thermal
overload relay and 3RW3 soft starter 8-24
8.3.3.4 Combining the 3RT contactor with the 3RB10 elec-
tronic overload relay and 3RW3 soft starter 8-26
8.3.4 Circuit example 8-29
8.3.5 Commissioning 8-30
8.3.6 Event messages and diagnostics 8-32
8.3.7 Timing diagram 8-33
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-2 A5E40534713002A/RS-AA/001
8.4 Accessories 8-35
8.5 Mounting and connection 8-37
8.5.1 Mounting 8-37
8.5.2 Connection 8-37
8.5.3 Circuit diagrams 8-38
8.6 Dimensional drawings (dimensions in mm) 8-41
8.7 Technical specifications 8-42
8.7.1 Control electronics/power electronics 8-42
8.7.2 Short-circuit protection and fuse coordination 8-45
8.7.3 Site altitude 8-50
8.7.4 Specifications in acc. with IEC 8-51
8.7.5 Specifications in acc. with NEMA 8-52
Section Subject Page
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-3
8.1 Specifications/regulations/approvals
The 3RW3 semiconductor motor control units, referred to below more
succinctly as soft starters, meet the UL and CSA requirements.
Table 8-1: Standards, certificates, and approvals, 3RW3
Normal switching duty The 3RW3 soft starters can be used for normal switching duty in acc. with
DIN VDE 0100 Part 460:
A switch for normal switching duty must be provided for all circuits that are
to be switched independently of other parts. Switches for normal switching
duty do not necessarily all switch active conductors of a circuit.
Isolation The soft starters do not meet the requirements for isolation
in acc. with DIN VDE 0100 Part 460 and EN 60 947-1:
Every circuit must be capable of being isolated from the active conductors
of the power supply.
Circuit groups can be isolated by a common device if this is permitted by the
operating conditions. In the open position, devices with an isolating function
must have a corresponding isolating distance and an indicator showing the
positions of the moving contacts.
UL/CSA UL 508
Degrees of protection
offered by housings EN
DIN standard rail EN 50 022
Electronic
Motor control units IEC 60947-4-2
Shock protection IEC 60947-1 and DIN 40050
EMC IEC 60801-4-2 (draft)
General specifications EN 602 69-1A1
Control devices and
switching elements EN 602 69-1A1
Gost Approved by Gost
CTic EMC compliance marking for Australia
(similar to CE marking)
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-4 A5E40534713002A/RS-AA/001
Warnings
Important
The 3RW3...-1.B1. soft starter was built as
a class A device. Using this product in res-
idential buildings could cause radio inter-
ference.
Caution
The devices are all carefully tested at the
factory and are not shipped unless they
are found to be in proper working order.
However, they may be subjected to
stresses during transportation over which
we have no control.
Consequently, the impulse series relays in
the main circuit may be in an undefined
switching state.
In the interests of complete safety, the
following procedure should be used at
commissioning or after the replacement
of the SIRIUS soft starter:
First, apply the supply voltage in order to
put the impulse series relays in a defined
switching state.
Then, switch the main circuit on.
If you deviate from this procedure, the
motor can be switched on inadvertently
and cause damage to people or parts of
the system.
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-5
8.2 Device description
The SIRIUS 3RW3 soft starters are part of the SIRIUS modular system. They
are compatible with the other SIRIUS switching devices.
The possible combinations are:
• 3RW3 soft starter + 3RV circuit breaker
• 3RW3 soft starter + 3RU/3RB overload relay + 3RT contactor
The link modules used for combinations of contactors and circuit breakers
are used for this (see Section 8.3.2, "Installation guidelines").
Fig. 8-1: 3RW3 soft starter
3RW30/31 frame sizes The 3RW30 soft starter is available in four frame sizes: S00, S0, S2, and S3.
The 3RW31 soft starter is available in frame size S0.
The following table contains the power ranges of the various frame sizes
(all specifications apply to UN = 400 V and 40 °C ambient temperature):
Table 8-2: 3RW3, frame sizes
Frame size S00 Frame size S0 Frame size S2 Frame size S3
1.1 - 4 kW 5.5 - 11 kW 15 - 22 kW 30 - 55 kW
6 - 9 A 12.5 - 25 A 32 - 45 A 63 - 100 A
(W x H x D) (mm)
45 x 97.5 x 93
(W x H x D) (mm)
45 x 125 x 119
(W x H x D) (mm)
55 x 160 x 143
(W x H x D) (mm)
70 x 170 x 178
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-6 A5E40534713002A/RS-AA/001
8.2.1 Physical principles
Starting current Three-phase current asynchronous motors have a high inrush current
I(starting). This inrush current can be between three and fifteen times as high
as the rated operational current, depending on the type of motor. A figure
between seven and eight times the rated operational current can be postu-
lated as typical.
Fig. 8-2: Typical current and torque curve of a three-phase asynchronous motor
Important
This starting current must be taken into consideration in the design of the
supply network, among other things by adapting the supply (high heat devel-
opment) and the fusing (inadvertent tripping of the fuses).
Reducing the starting
current
There are various ways of reducing the starting current:
• By star-delta starter
• By frequency converter
• By soft starter
I
starting
I
0 (no-load)
I
I
rated
nrated nsyn n
M
n
M
starting
M
saddle
M
motor
M
cusp
M
motor
M
rated
n
rated
n
syn
M
accel
M
load
M
load
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SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-7
Star-delta starter After a delay, the motor windings are switched from a star to a delta config-
uration. The motor current for star starting is only about 1/3 of that required
for delta starting (motor torque, too, is reduced to approximately 1/3 of the
delta torque).
Disadvantages:
• 6 motor cables are necessary
• Switching surges occur (in the current and torque transients)
• The startup cannot be adapted to the system environment
• Installation is relatively complicated and time-consuming
• More space is needed in the cubicle
Fig. 8-3: Current and torque curves for star-delta starting
I
IAd
IA*=
Starting current for d
Starting current
for
*/d-start
nn
nsyn
*nrated
M
MAdMmotor ford
Mmotor for*
MA*
=1/3 MAd
Mload
nn
nsyn
*nrated
1/3 IA d
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SIRIUS System Manual
8-8 A5E40534713002A/RS-AA/001
Frequency converter A frequency converter converts the AC voltage from the grid to direct
voltage, which can then be converted to any voltage and frequency.
The illustration below shows how a frequency converter works:
Fig. 8-4: Method of operation of a frequency converter
Disadvantages:
• Relatively complicated wiring needed in order to meet radio interference
suppression requirements; filters are often essential.
• Line capacitances limit the lengths of motor feeder cables; it may be
necessary to use chokes, sinus filters, or even dV/dt filters.
• Expensive
• System startup is complex and time-consuming on account of the
multiplicity of operating parameters.
• It can be necessary to use shielded motor feeder cables.
Advantages:
• Motor speed is variable; speed can be accurately pegged at constant
levels.
The U/f ratio remains virtually constant. It is therefore possible to achieve
high torques at relatively low currents.
0V
t
U
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A5E40534713002A/RS-AA/001 8-9
Soft starter With a soft starter, motor voltage is increased from a selectable starting
voltage to the rated voltage by phase firing within a defined starting time.
Motor current is proportional to the motor voltage, so the starting current is
reduced by the factor of the defined starting voltage.
The illustration below shows how the 3RW3 soft starter works:
Fig. 8-5: Phase firing of the supply voltage by semiconductor elements in the 3RW3 soft starter
Example:
Starting voltage 50 % of Ue => starting current equals 50 % of the motor
starting current for direct-on-line starting.
A soft starter also reduces motor torque. This is the reason why a soft-
started motor does not jerk into action.
The relationship is as follows: The motor torque is proportional to the square
of the motor voltage.
Example:
Starting voltage 50 % of Ue => starting torque 25 % of the starting torque
for direct-on-line starting.
Advantages:
• Less space needed in the cubicle
• No protective circuits (e.g. filters) necessary to comply with the radio
interference suppression specifications (class A; in 24 V UC control
voltage version also class B)
• Lower installation costs
• Straightforward system startup
• Only 3 motor feeder cables, half as many as are needed for a star-delta
starter
• Adjustment options permit adaptation to the system
Disadvantages:
• Long-term speed settings not possible
• Lower torque at reduced voltage
UL1- L3
M
3 ~
L1
L2
L3
G1
UL1- L3
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SIRIUS System Manual
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Fig. 8-6: Current and torque curves for a soft starter
8.2.2 General device description
The SIRIUS modular system offers a variety of alternatives for load feeders.
In addition to the star-delta starters (see Chapter 5, "3RA fuseless load feed-
ers"), the SIRIUS 3RW3 soft starters are also available.
The 3RW3 soft starters can be combined with the following SIRIUS devices:
• 3RT contactors
• 3RV circuit breakers
• 3RU thermal overload relays
• 3RB10 electronic overload relays
They are all mounted and connected up in the same way.
Please note the relevant guidelines in Section 8.3.2.
Functions of the load feeder
Normal switching
duty
Normal switching duty of a circuit can, according to the definitions of isola-
tion and normal switching data in DIN VDE 0100 (see Section 8.1), be imple-
mented with a contactor or a soft starter alone.
n
nsyn
Mstarting
M
Mstarting
Mstarting
100% Ugrid
70% Ugrid
50% Ugrid
0.49 x
0.25 x
n
nsyn
Istarting
I
I
starting
0.7 x
Istarting
0.5 x
100% Ugrid
70% Ugrid
50% Ugrid
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A5E40534713002A/RS-AA/001 8-11
Isolation According to DIN VDE 0100, isolation from the supplying network cannot be
provided by a semiconductor element (i.e. soft starter, frequency converter,
contactor, or similar).
To implement isolation from the supplying network, a 3RV circuit breaker (or
another isolating device that fulfills the requirements of DIN VDE 0100)
must be used in addition to the contactor or soft starter. A contactor alone
in combination with the soft starter is not enough.
Both isolation and normal switching duty can be implemented quickly and
easily with the 3RW3 soft starter in combination with the modules from the
SIRIUS modular system.
Variants The electronic soft starters are available in two variants:
Standard 3RW30 variant
The standard 3RW30 variant is used for single-speed motors. This variant is
available in all four frame sizes. The starting voltage Us, starting time tRon,
and coasting-down time tRoff can be set independently of each other on the
device. The device is switched on by means of a cycling contact IN.
3RW31 special variant
The 3RW31 special variant cycles pole-changing motors (Dahlander
winding). The following can be set independently of each other:
• Starting voltage Us
• Starting time of initial speed tR1
• Starting time of second speed tR2
The device does not have a coasting-down function. The set starting voltage
applies to both ramp times tR1 and tR2.
The ramp time is selected by means of two inputs, IN1 and IN2, that switch
the soft starter on.
The devices of the 3RW31 series are only available in frame size S0.
Settings The devices can be set as follows:
3RW30
By means of 3 potentiometers for setting:
• Starting time in the range from 0 to 20 seconds
• Starting voltage in the range from approx. 30 to 100 % of the rated
voltage of the motor
• Coasting-down time in the range from 0 to 20 seconds
3RW31
By means of 3 potentiometers for setting:
• Starting time 1 in the range from 0 to 20 seconds
• Starting voltage in the range from approx. 30 to 100 % of the rated
voltage of the motor
• Starting time 2 in the range from 0 to 20 seconds
A special software program ensures that progressive ramp times are set.
Short times of up to 5 seconds can thus be set very precisely.
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Auxiliary contacts 3RW30
In the case of frame sizes S0 to S3, the following auxiliary contacts are inte-
grated:
• "ON": When triggered, the latching signal is used for locking by means of a
simple on/off pushbutton (contact designation 13/14).
• "BYPASSED": With the end-of-startup signal, control valves can be
addressed after soft starting of a pump, for example, in order to enable
pumping (contact designation 23/24).
The devices of frame size S00 do not have any auxiliary switches.
3RW31
The 3RW31 does not have any auxiliary contacts.
Soft starting function Torque-reduced start for three-phase asynchronous motors:
Triggering is two-phase, which means that the current is kept low through-
out the run-up phase. Current peaks such as those that occur in a star-delta
start at the changeover from star to delta are prevented by continuous
voltage management.
Transient current peaks (inrush peaks) are automatically avoided in each
switch-on procedure by a special control function of the power semiconduc-
tors.
Soft coasting-down
function
The integrated soft coasting-down function prevents the drive coming to an
abrupt halt when the motor is switched off.
3RW30 time ramps The following graphics show the time ramp of the 3RW30 and the timing
diagram of the auxiliary contacts:
Fig. 8-7: Time ramp/timing diagram, 3RW30
The graphic below shows the time ramp of the 3RW3:
Fig. 8-8: Time ramp, 3RW31
Us
UN
U
tR on tR off ttR on tR off
ON 13/14
BYPASSED 23/24
3RW30: Time ramp Timing diagram of the auxiliary
contacts
Us
UN
U
t
tR1 tR2
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A5E40534713002A/RS-AA/001 8-13
Accessories A fan can be snapped into the soft starter housing of frame sizes S0 to S3
from below. This brings the following benefits:
• Improved range of options for the installation position
• Increase in the switching frequency (see Section 8.3.2, "Installation guide-
lines")
In the case of frame sizes S0 and S2, extended terminal covers can be
mounted on the box covers in order to cover the cable ends and keep them
safe from fingers. These are identical to the extended terminal covers of the
SIRIUS 3RT contactors of the same frame sizes.
In the case of frame size S3, terminal covers are available for lug connection
or bar connection. These, too, are identical to the accessory parts of the
corresponding SIRIUS contactor size.
See Section 8.4 for details of other accessories.
Mounting The devices are attached to the 3RV circuit breakers by means of a link mod-
ule and are thus connected mechanically and electrically. This link module is
identical to the one that is used for the corresponding contactor/circuit-
breaker combinations. This installation variant offers all the advantages of a
fuseless load feeder.
Link modules The following link modules are used to combine 3RW3 soft starters and
3RV1 circuit breakers:
Table 8-3: Link modules
Connection The 3RW3 electronic soft starters are available with screw-type terminals.
Plus-minus POZIDRIV 2 screws are used.
The SIGUT terminal system is used (captive screws, contacts open on
delivery, etc.).
Frame size Link module
S00 3RA1911-1A
S0 3RA1921-1A
S2 3RA1931-1A
S3 3RA1941-1A
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8.2.3 Comparison of the 3RW3 semiconductor motor control unit (soft starter) with the
SIKOSTART 3RW22 and SIKOSTART 3RW34 motor control units
Soft starters are available for different applications.
The following graphic provides an overview of the different soft starters:
Fig. 8-9: Overview of soft starters
SIKOSTART 3RW22 The SIKOSTART 3RW22 is suitable for drives that place high demands on
the functionality of the starter. It covers a power range from 3 kW to 710 kW
(at 400 V).
SIKOSTART 3RW22 offers the following:
• Soft starting and soft coasting down
• Break-loose torque
• DC brakes
• Energy-saving operation
• Temperature monitoring
• Operation using a PC and an RS232 interface
• Selection and configuration program
• Current and voltage limitation
• Pump functionalities (e.g. pump coasting down)
• Startup detection
• Three parameter sets
• Different coasting-down types
• Electronic device overload protection
The SIKOSTART 3RW22 application manual presents the various application
areas and circuit variants (order no. E20001-P285-A484-V3).
SIKOSTART 3RW22
SIKOSTART 3RW34
S0 S2 S3
S00
Functions
High
End
Low
End
5.5 11 22 45 710 1000
12/16/25A
6/9A
2 phase
in-line only
SIRIUS
3RW30/31 soft starters
+ 575V+
auxiliary contacts
Power in kW
at 400 V
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A5E40534713002A/RS-AA/001 8-15
SIKOSTART 3RW34 The SIKOSTART 3RW34 is suitable for drives with low demands in terms of
the functionality of the soft starter. The SIKOSTART 3RW34 is very similar to
the SIRIUS 3RW3 soft starter in terms of its operation and configuration. It
covers a power range of up to 1000 kW (400 V).
The functions of the 3RW34 are as follows:
• Soft starting and soft coasting down
• 2 circuit variants: standard and root 3 circuits
• Three-phase control
• Optional AS-Interface bus control
You will find the technical specifications and a detailed description of the
3RW34 in the document describing SIKOSTART 3RW22/3RW34 solid-state
motor controllers (order no.: E20001-A200-P302).
SIRIUS 3RW3
soft starter
The SIRIUS 3RW3 soft starter covers the power range from 1.5 kW to
45 kW.
Power semiconductors always exhibit power loss. This manifests itself in
heat generation. In order to keep this power loss as low as possible, the
semiconductors are bypassed by relay contacts after the motor has started
up. The device's heat sink and its dimensions can thus be smaller than they
otherwise would be. In addition, it is necessary to use a bypass contactor,
which bypasses the line semiconductors in the conventional configuration.
For further processing in the system controller, the device offers two relay
outputs:
• "ON" contact (terminals 13/14), which can be used, for example, to control
the soft starter by button (locking)
• "BYPASSED" contact (terminals 23/24), which signals the completion of
startup (e.g. in order to switch a solenoid valve after a soft-started pump
has started up)
For drives in this power range, good motor startups can be achieved with a
two-phase controller.
In the case of a two-phase controller, semiconductor elements are only
used in two phases in order to reduce motor current and motor voltage in all
three phases. The third phase is bypassed internally in the soft starter.
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8.2.4 Comparison of the 3RW3 semiconductor motor control unit (soft starter)
with the 3RA star-delta combination
The comparison of soft starter and star-delta combinations shows that the
3RW3 has the following advantages (example here 22 kW):
Table 8-4: Comparison of 3RW3/3RA
8.2.5 Notes on configuration
In order for a motor to reach its rated speed, motor torque at any given time
during startup must be greater than the torque needed by the load, since
otherwise a stable operating point would be reached before the motor
achieved its rated speed (the motor would "drag to a stop"). The difference
between motor torque and load torque is the accelerating torque that is
responsible for the increase in the speed of the drive. The lower the acceler-
ating torque, the longer the motor needs to run up to its operating speed.
Starting torque Reducing the terminal voltage of a three-phase asynchronous motor
reduces the motor's starting current and the starting torque.
Current is directly proportional to voltage, whereas voltage is proportional to
the square root of motor torque.
Example:
Motor = 55 kW, rated current = 100 A, starting current = 7 x rating current,
motor torque = 355 Nm, starting torque = 2.4 x rated torque
Settings for the soft starter: starting voltage 50 % of rated voltage for motor
The reductions are thus as follows:
• The starting current is reduced to half the starting current for a direct
start: 50 % of (7 x 100 A) = 350 A
• Starting torque is reduced to 0.5 x 0.5 = 25 % of the starting torque for a
direct start: 25 % of 2.4 x 355 Nm = 213 Nm
3RW3 soft starter 3RA star-delta starter
Width: 55 mm Width: 165 mm
Wiring: 3 motor supply leads Wiring: 6 motor supply leads
Selectable startup parameters None
Minimum current values at startup Fixed current ratios (I* = 1/3Id)
No dangerous switchover current peaks Switchover current peaks when switching
from star to delta
Special variant for Dahlander motors —
Soft coasting-down function —
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SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-17
Note
On account of the fact that the starting voltage is proportional to the square
root of the motor torque, it is important to ensure that the starting voltage is
not too low. This applies particularly for a pronounced saddle torque, the
lowest motor torque that occurs during run-up to rated speed.
Fig. 8-10: Load and motor torques and motor terminal voltage for operation with soft starter
Criteria for selection Note
In the case of the SIRIUS 3RW30/31 soft starters, the corresponding soft
starter must be selected on the basis of the rated current for the motor (the
rated current of the soft starter must be ≥ the rated current for the motor).
The 3 potentiometers on the starter are for setting the starting voltage, the
starting time, and the coasting-down time.
The soft starter is correctly set when the motor starts smoothly and runs up
rapidly to its rated speed.
Ramp times of up to 20 seconds can be set.
Ue
t
tR
US
U
M
Mstarting
Mstarting
with
Mmotor
Mload
n
Mmotor with
SIRIUS soft starter
SIRIUS
Soft starter
MB
MB = accelerating torque
of the motor
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8.3 Application and use
8.3.1 Areas of application and criteria for selection
The SIRIUS 3RW3 soft starters offer an alternative to star-delta starters
(see Section 8.2.4 for a comparison and the advantages).
The most important advantages are soft starting and soft coasting-down,
interruption-free switching without current spikes that could interfere with
the supply system, and compact dimensions.
Many drives that needed frequency converters in the past can be changed
to soft-start operation with the 3RW3, if the applications do not call for
variations in speed.
Applications Typical applications include, for example:
Conveyor belts, conveyor systems:
• Smooth starting
• Smooth slowing
• Use of better-value conveyor material
Rotary pumps, piston-type pumps:
• Avoidance of pressure surges
• Extended service life of the piping system
Agitators, mixers:
• Reduced starting current
Fans:
• Less strain on gearing and drive belts
Cooling time Note
The cooling time must be taken into consideration in the starting frequency.
8.3.2 Installation guidelines
On account of the heat generated, certain installation guidelines must be
adhered to when combining 3RW30/31 soft starters with other SIRIUS
switching devices.
Stand-alone
installation
Stand-alone installation is when minimum vertical and lateral clearances
between the mounted devices are not violated. This applies both to
individual devices and complete load feeders.
The following minimum clearances must be adhered to in stand-alone
installation (these minimum clearances depend on the frame size):
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SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-19
Table 8-5: Stand-alone installation, minimum clearances at the side, 3RW3
Table 8-6: Stand-alone installation, minimum clearances at the side, 3RW3
Line lengths for the
drive circuit
The control inputs for starting and stopping are not rated for longer
distances. This means:
• In the case of a drive circuit that goes beyond the control cubicle,
coupling relays must be used.
• The control cables in the cubicle should not be laid together with main
circuit cables.
When electronic output modules are used in the drive circuit (e.g. Triac
outputs at 230 V AC), RC elements (e.g. 3TX7462-3T or similar with
C > 100 nF) may be required at the control inputs under certain circum-
stances.
Frame size Minimum clearance on
both sides in mm
S00 15
S0 20
S2 30
S3 40
3RW30
a
b
3RW30
Frame size Vertical
clearance a
Vertical
clearance b
S00 50 50
S0 60 40
S2 50 30
S3 60 30
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Correction factors If the minimum clearances are violated, in a combination of a soft starter
with a circuit breaker, fixed correction factors must be used to determine
the rated current for the device and the switching frequency.
The following variables can be modified by means of correction factors:
• Rated current for the device
• Switching frequency
• Current setting of the circuit breaker
• Current setting of the overload relay
Correction factor for the
rated current of the
device
A factor is specified by which the device rated current of the soft starter is
reduced.
Example:
Correction factor for the rated current of the device = 0.9
Selected device = 3RW3014-1CB14 (under normal conditions at 40 °C a
device rated current of 6 A)
This results in an actual device rated current of:
0.9 x 6 A = 5.4 A
Correction factor for
switching frequency
The switching frequency is the maximum permissible number of starts per
hour. This value must be adjusted by the specified correction factor. The
number of permissible starts per hour is given in Section 8.7.1, "Control
electronics/power electronics", in Section 8.7, "Technical specifications".
The specified correction factors refer to the following operating conditions:
S4 operation, 40 °C ambient temperature, 30 % duty cycle
Example:
Correction factor for the switching frequency = 1.5
Selected device = 3RW3014-1CB14 (has a maximum switching frequency of
30 starts per hour under the conditions specified above)
This results in a corrected switching frequency of:
1.5 x 30 = 45 starts per hour
To increase the switching frequency, it is also possible to use a larger
device.
Correction factor for the
current setting of the
circuit breaker
In combinations of a 3RW30 soft starter and a 3RV1 circuit breaker, the set
value of the circuit breaker may have to be corrected appropriately. The
correction factor specifies the extent of the change.
Example:
Correction for the current setting of the circuit breaker: 1.1
Selected device = 3RW3014-1CB14
The connected motor has a motor rated current of 5 A.
The set value of the circuit breaker must be changed to:
1.1 x 5 A = 5.5 A
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A5E40534713002A/RS-AA/001 8-21
Correction factor for the
current setting of the
overload relay
In combinations of a 3RW30 soft starter + 3RU1 thermal overload relay or
3RW30 software starter + 3RB10 electronic overload relay, the set value of
the overload relay must be corrected appropriately. The correction factor
specifies the extent of the change.
Example:
Correction factor for the current setting of the overload relay 0.9
Selected device = 3RW3014-1CB14
The connected motor has a motor rated current of 5 A.
The set value of the overload relay now has to be changed to:
0.9 x 5 A = 4.5 A
8.3.3 Overview tables: correction factors
The tables below give the correction factors for the circuit-breaker current
setting, the device rated current, and the switching frequency.
The values indicate the difference between use with a fan (accessory) and
use without a fan.
All correction fans apply throughout the entire temperature range
(i.e. for 40 °C, 50 °C, and 60 °C).
The various tables specify the values in turn for the following:
3RW30/31 soft starters in a stand-alone installation
3RW30/31 soft starter + 3RV1 circuit breaker
3RW30/31 soft starter + 3RT1 contactor + 3RU1 thermal overload relay
3RW30/31 soft starter + 3RT1 contactor + 3RB10 electronic overload relay
8.3.3.1 3RW30/31 soft starters in a stand-alone installation
Minimum clearance In the case of frame size S00 (3RW301..), the following applies to stand-
alone, vertical installation without directly attached switching devices:
In order to maintain the required space above the arc chute, clearance of at
least 50 mm must be maintained to grounded parts above and below.
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SIRIUS System Manual
8-22 A5E40534713002A/RS-AA/001
3RW30/31 correction
factors
3RW30/31 soft starters not combined with any other switching devices:
Table 8-7: Correction factors, 3RW30/31
1) The SIRIUS 3RW301.. soft starters cannot be operated with a fan.
8.3.3.2 3RW30/31 soft starters in combination with the 3RV1 circuit breaker
Fig. 8-11: 3RW3 soft starter + 3RV1 circuit breaker
Dimensioning of the
circuit breaker
The frame size selected for the circuit breaker should be large enough so
that the current value calculated can just be set.
In the event of current values that are lower than can be set for the speci-
fied circuit breaker, the next smaller circuit breaker must be used.
Without fan With fan
Stand-alone
installation Installed side by side
Stand-alone
installation
or
side by side
Correction factor Correction factor Correction factor
Order number Frame
size
Device
rated cur-
rent in A at
40 °C
Rated cur-
rent for
the device
Switching
frequency Rated cur-
rent for
the device
Switching
frequency Rated cur-
rent for
the device
Switching
frequency
3RW3014-1CB..S0061110.75- 1)- 1)
3RW3016-1CB..S0091110.75- 1)- 1)
3RW3.24-1AB..S012.51110.6511.8
3RW3.25-1AB..S0161110.6511.8
3RW3.26-1AB..S0251110.6511.8
3RW3034-1AB..S2321110.6511.8
3RW3035-1AB..S2381110.6511.8
3RW3036-1AB..S2451110.6511.8
3RW3044-1AB..S3631110.811.6
3RW3045-1AB..S3751110.7511.6
3RW3046-1AB..S31001110.711.6
3RV
3 k
M
3RW
Link module
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SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-23
Correction factors:
3RV1 + 3RW30/31
Combination of a 3RV1 circuit breaker + 3RW30/31 soft starter:
Table 8-8: Correction factors: 3RV1 circuit breaker + 3RW3 soft starter
1) = SIRIUS 3RW301 .. soft starters cannot be used with a fan
Without fan
Stand-alone installation
Without fan
Installed side by side
With fan
Stand-alone installation
With fan
Installed side by side
Order number
Frame size
Device rated current in A
at an ambient temperature of 40 °C
Order number
Circuit breaker
Adjustment range
Circuit breaker
Correction factor
Rated current for the device
Correction factor
Switching frequency
Correction factor
Current setting of the circuit breaker
Correction factor
Rated current for the device
Correction factor
Switching frequency
Correction factor
Current setting of the circuit breaker
Correction factor
Rated current for the device
Correction factor
Switching frequency
Correction factor
Current setting of the circuit breaker
Correction factor
Rated current for the device
Correction factor
Switching frequency
Correction factor
Current setting of the circuit breaker
3RW3014-1CB..
3RW3016-1CB..
S00
S00
6
9
3RV1011-1GA10
3RV1011-1JA10
(4.5 - 6.3) A
(7 - 10) A
1
1
0.9
0.9
1
1
1
1
0.5
0.5
1.
1.
— 1)
— 1) — 1)
—1) — 1)
— 1) — 1)
— 1) — 1)
— 1) — 1)
— 1)
3RW3.24-1AB..
3RW3.25-1AB..
3RW3.26-1AB..
S0
S0
S0
12.
16
25
3RV1021-1KA10
3RV1021-4AA10
3RV1021-4DA10
(9 - 12.) A
(11 - 16) A
(20 - 25) A
1
1
1
0.5
0.5
0.75
1
1
1
1
1
0.
0.5
0.5
0.5
1.
1.
1.
1
1
1
1.
1.
1.
1
1
1
1
1
1
1. 7
1. 7
1. 7
1.1
1.1
1.1
3RW3034-1AB..
3RW3035-1AB..
3RW3036-1AB..
S2
S2
S2
32
38
45
3RV1031-4EA10
3RV1031-4FA10
3RV1031-4GA10
(22 - 32) A
(28 - 40) A
(36 - 45) A
1
1
1
0.65
0.85
0.85
1
1
1
0.9
0.95
0.9
0.45
0.35
0.4
1. 1
1. 1
1. 1
1
1
1
2.2
1. 8
1. 8
1
1
1
1
1
1
1. 9
1. 7
1. 7
1.1
1.1
1.1
3RW3044-1AB..
3RW3045-1AB..
3RW3046-1AB..
S3
S3
S3
63
75
100
3RV1041-4JA10
3RV1041-4KA10
3RV1041-4MA10
(45 - 63) A
(57 - 75) A
(80 - 100) A
1
1
1
0.85
0.8
0.75
1
1
1
0.95
0.9
0.85
0.6
0.5
0.55
1. 1
1. 1
1. 1
1
1
1
1. 6
1. 6
1. 6
1
1
1
1
1
1
1. 3
1. 3
1. 2
1.1
1.1
1.1
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-24 A5E40534713002A/RS-AA/001
8.3.3.3 Combining the 3RT contactor with the 3RU1 thermal overload relay and 3RW3 soft starter
Frame size of the
overload relay
The frame size selected for the overload relay should be large enough so
that it is just possible to set the current value calculated.
In the event of current values that are lower than can be set for the speci-
fied overload relay, the next smaller overload relay must be used.
Important
It is not permissible to mount the thermal overload relay under the contac-
tor/connecting lead/soft starter combination.
The overload relay must be integrated in the feeder before the contractor/
connecting lead/soft starter combination. The specified correction factors
apply only to this permissible mounting sequence.
Fig. 8-12: 3RT+3RU1+3RW3 combination
Minimum clearance For thermal reasons, a minimum clearance is necessary between the con-
tactor/overload relay combination and the soft starter, as is a minimum
length of the connecting leads.
The following table specifies the minimum clearances and minimum lengths
of the connecting leads for the various frame sizes:
Table 8-9: 3RW3 installation guidelines, minimum clearances/lengths
3RT
3RU1
Connecting
lead
3RW
3RT
3RU1
3RW
Rail 1:
Combination of 3RT1 contac-
tor and 3RU1 thermal over-
load relay
Rail 2:
3RW3 soft starter
Frame size
Minimum clearance between
rail 1 and rail 2
(center to center) in mm
Minimum length of the
connecting lead
in mm
S00 160 100
S0 200 150
S2 240 200
S3 300 250
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-25
Correction factors: 3RT
+ 3RU1 + 3RW30/31
Combination of the 3RT1 contactor with an attached 3RU1 thermal overload
relay/connecting lead/3RW30/31 soft starter:
Table 8-10: Correction factors, 3RT contactor + 3RU therm. overload relay + 3RW soft starter
1) = SIRIUS 3RW301 .. soft starters cannot be used with a fan.
Without fan
Stand-alone installation
Without fan
Installed side by side
With fan
Stand-alone installation
With fan
Installed side by side
Order number
Frame size
Device rated current in A
at an ambient temperature of 40 °C
Contactor order number
Order number
Therm. overload relay
Setting range of the overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value for th. overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value for th. overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Current setting of the circuit breaker
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value for th. overload relay
3RW3014-1CB..
3RW3016-1CB..
S00
S00
6
9
3RT1015-1A..
3RT1016-1A..
3RU1116-1GBO
3RU1116-1JBO
(4.5 - 6.3)
A
(7 - 10) A
0.95
0.9
1
0.95
1
1
0.9
0.8
0.75
0.8
1
1
— 1)
— 1) — 1)
—1) — 1)
— 1) — 1)
— 1) — 1)
— 1) — 1)
— 1)
3RW3.24-1AB..
3RW3.25-1AB..
3RW3.26-1AB..
S0
S0
S0
12.5
16
25
3RT1024-1A..
3RT1025-1A..
3RT1026-1A..
3RU1126-1KBO
3RU1126-4ABO
3RU1126-4DBO
(9-12.5)A
(11-16)A
(22-25)A
0.95
0.95
0.9
0.9
0.9
0.8
1
1
1
0.9
0.9
0.8
0.55
0.55
0.55
1
1
1
1
1
1
1. 8
1. 8
1. 8
0.95
0.95
0.95
1
1
1
1.7
1.7
1.7
0.95
0.95
0.95
3RW3034-1AB..
3RW3035-1AB..
3RW3036-1AB..
S2
S2
S2
32
38
45
3RT1034-1A..
3RT1035-1A..
3RT1036-1A..
3RU1136-4EBO
3RU1136-4FBO
3RU1136-4HBO
(22-32)A
(28-40)A
(36-45)A
0.95
0.95
0.9
0.7
0.9
0.95
1
1
1
0.9
0.9
0.8
0.45
0.35
0.45
1
1
1
1
1
1
2.2
1. 8
1. 8
0.92
0.92
0.92
1
1
1
1.9
1.7
1.7
0.92
0.92
0.92
3RW3044-1AB..
3RW3045-1AB..
3RW3046-1AB..
S3
S3
S3
63
75
100
3RT1044-1A..
3RT1045-1A..
3RT1046-1A..
3RU1146-4JBO
3RU1146-4KBO
3RU1146-1MBO
(45-63) A
(57-75) A
(80-100)
A
0.95
0.95
0.9
0.9
0.85
0.8
1
1
1
0.9
0.9
0.8
0.65
0.5
0.55
1
1
1
1
1
1
1. 6
1. 6
1. 6
0.92
0.92
0.92
1
1
1
1.5
1.5
1.5
0.92
0.92
0.92
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-26 A5E40534713002A/RS-AA/001
8.3.3.4 Combining the 3RT contactor with the 3RB10 electronic overload relay and 3RW3 soft
starter
The contactor, electronic overload relay, and soft starter can be connected in
two ways:
• Combining a 3RT1 contactor with an attached 3RB10 electronic overload
relay, a connecting lead, and a 3RW30/31 soft starter
• Combining a 3RT1 contactor with a connecting lead and a combination of
a 3RW30/01 soft starter with an attached 3RB10 electronic overload relay
3RT + 3RB10 +
connecting lead +
3RW3
Fig. 8-13: 3RT+3RB10+3RW3 combination
Minimum clearance For thermal reasons, a minimum clearance is necessary between the con-
tactor/overload relay combination and the soft starter, as is a minimum
length of the connecting leads.
The following table specifies the minimum clearances and minimum lengths
of the connecting leads for the various frame sizes:
Table 8-11: 3RT + 3RB10 + 3RW3 installation guidelines, minimum clearances/minimum lengths
3RT
3RB10
Connecting
lead
3RW
Rail 1:
Combination of a 3RT1 contactor and
a 3RB10 electronic overload relay
Rail 2:
3RW30/31 soft starter
Frame size
Minimum clearance between
rail 1 and rail 2
(center to center) in mm
Minimum length of the
connecting lead
in mm
S00 160 100
S0 200 150
S2 240 200
S3 300 250
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-27
3RT + connecting lead +
3RB10 + 3RW3
Fig. 8-14: 3RT+3RW3+3RB10 combination
Minimum clearances
Table 8-12: 3RT1 + 3RW30/31 + 3RB10 installation guidelines, minimum clearances/minimum
lengths
3RT
3RB10
3RW
Rail 1:
3RT1 contactor
Rail 2:
Combination of 3RW30/31 soft
starter and 3RB10 electronic
overload relay
Frame size
Minimum clearance between
rail 1 and rail 2
(center to center) in mm
Minimum length of the
connecting lead
in mm
S00 100 100
S0 140 150
S2 180 200
S3 240 250
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-28 A5E40534713002A/RS-AA/001
Correction factors:
3RT + 3RB10 + 3RW3
Combining a 3RT1 contactor with an attached 3RB10 electronic overload
relay, a connecting lead, and a 3RW30/31 soft starter
Table 8-13: Correction factors, 3RT contactor + 3RB10 electronic overload relay + 3RW soft starter
1) = SIRIUS 3RW301 .. soft starters cannot be used with a fan.
Without fan
Stand-alone installation
Without fan
Installed side by side
With fan
Stand-alone installation
With fan
Installed side by side
Order number
Frame size
Device rated current in A
at an ambient temperature of 40 °C
Contactor order number
Order number
of electronic overload relay
Setting range of the overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value of the el. overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value of the el. overload relay
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Current setting of the circuit breaker
Correction factor
Rated current for the device
Correction factor for switching frequency
Correction factor
Set value of the el. overload relay
3RW3014-1CB..
3RW3016-1CB..
S00
S00
6
9
3RT1015-1A..
3RT1016-1A..
3RB1016-1SBO
3RB1016-1SBO
(3-12)A
(3-12)A
1
1
0.95
0.95
1
1
1
1
?
?
1
1
— 1) — 1) — 1) — 1) — 1) — 1)
— 1) — 1) — 1) — 1) — 1) — 1)
3RW3.24-1AB..
3RW3.25-1AB..
3RW3.26-1AB..
S0
S0
S0
12.5
16
25
3RT1024-1A..
3RT1025-1A..
3RT1026-1A..
3RB1026-1QBO
3RB1026-1QBO
3RB1026-1QBO
(6-25)A
(6-25)A
(6-25)A
1
1
1
0.85
0.85
0.75
1
1
1
1
1
1
0.5
0.5
0.45
1
1
1
1
1
1
1. 8
1. 8
1. 8
1
1
1
1
1
1
1. 7
1. 7
1. 7
1
1
1
3RW3034-1AB..
3RW3035-1AB..
3RW3036-1AB..
S2
S2
S2
32
38
45
3RT1034-1A..
3RT1035-1A..
3RT1036-1A..
3RB1036-1UBO
3RB1036-1UBO
3RB1036-1UBO
(15-50)A
(15-50)A
(15-50)A
1
1
1
0.65
0.85
0.85
1
1
1
1
1
1
0.4
0.35
0.35
1
1
1
1
1
1
2.2
1. 8
1. 8
1
1
1
1
1
1
1. 9
1. 7
1. 7
1
1
1
3RW3044-1AB..
3RW3045-1AB..
3RW3046-1AB..
S3
S3
S3
63
75
100
3RT1044-1A..
3RT1045-1A..
3RT1046-1A..
3RB1046-1EBO
3RB1046-1EBO
3RB1046-1EBO
(25-100)A
(25-100)A
(25-100)A
1
1
1
0.85
0.8
0.75
1
1
1
1
1
1
0.6
0.5
0.55
1
1
1
1
1
1
1. 6
1. 6
1. 6
1
1
1
1
1
1
1. 5
1. 5
1. 5
1
1
1
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-29
8.3.4 Circuit example
Circuit example with 3RW30 frame size S0, S2, S3 (variant with
110-230 V UC):
Fig. 8-15: Circuit example, 3RW3
End of startup
N
L
14/23
A1
L3
L2L1 A2
13T3T2T1
110...230V UC
IN1
OffOn
24
IN A1
A2
STOP
1
L
13
14
G1
N
ON
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-30 A5E40534713002A/RS-AA/001
8.3.5 Commissioning
Every SIRIUS 3RW soft starter comes with the following warning, which it is
imperative to heed:
Caution
This device has been tested carefully at the factory and found to be in
working order.
During transportation, however, it may have been subject to stresses over
which we have no control. The bypass relays in the main circuit may be in an
undefined state.
In the interests of complete safety, the following procedure should be used
at commissioning or after the replacement of the SIRIUS soft starter:
First, apply the supply voltage to A1/A2 in order to put the impulse series
relays in a defined switching state.
Then, switch on the main circuit (L1/L2/L3).
If you do not do this, the motor can be switched on inadvertently and cause
damage to people or parts of the system.
Settings
Fig. 8-16: Settings, 3RW3
Note
At commissioning, the settings of the potentiometers for the ramp time and
the starting voltage should remain unchanged. These set values must be
obtained in a trial.
3RW30
tR on
uS
tR off
3RW31
tR1
uS
tR2
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-31
Changing settings The potentiometer settings are scanned before each switching operation
("ON" or "OFF").
If, for example, the setting of the potentiometer for starting time is changed
while the motor is running up, the change does not come into effect until
the next start.
Starting voltage The starting voltage should be set to a value at which the motor starts
rapidly.
Ramp time The ramp time should be set such that the motor can run up within the time
defined in this way.
If the star time for star-delta starting is known, the ramp time can be set to
this value.
Coasting-down time The potentiometer for the coasting-down time is for setting the duration of
the voltage ramp for coasting down. This parameter can be used to make
the motor run-down longer than it would be if the motor were merely to
coast to a stop.
The motor coasts to a stop on its own if this potentiometer is set to a value
of 0.
Switching frequency To prevent thermal overloading of the devices, the maximum permissible
switching frequency must be adhered to and the correction factor tables
must be used (see the installation guidelines in Section 8.3.2).
Starting time In order to obtain optimum operating conditions for the 3RW3 soft starter,
the setting for the starting time should be approx. 1 second longer than the
resultant motor run-up time, in order to ensure that the internal jumpering
contacts do not have to carry the starting current. This protects the internal
jumpering contacts and increases their service life. Longer starting times
increase the thermal load on the devices and the motor unnecessarily and
lead to a reduction in the permissible switching frequency.
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-32 A5E40534713002A/RS-AA/001
Position of the
terminals
3RW30
The following graphic illustrates the position of the terminals and the
potentiometers for adjustment.
Fig. 8-17: Position of the terminals and the potentiometers for adjustment
3RW31
The 3RW31 soft starters are available in frame size S0. Outwardly, they
differ from the 3RW30 in the labeling of the contacts and the terminals:
• There is no BYPASSED auxiliary contact. The free contact is used to
enable the necessary drive contact IN2 to switch between the ramp
times tR1 and tR2.
• The 3RW31 does not have a coasting-down ramp. The potentiometer with
which the coasting-down time is adjusted on the 3RW30 is used here to
set the second ramp time tR2.
• There is no ON auxiliary contact.
Line length of the
control cable
To eliminate problems with the cable coupler capacitances, the control cable
should be shorter than 15 m. (This is based on devices with a rated control
supply voltage of 24 V UC to 50 m.)
To eliminate problems in control cables that are fed out of the cubicle,
coupling links must be used.
8.3.6 Event messages and diagnostics
Event messages
Table 8-14: 3RW30/31 event messages
5
10
20s
0
max
min 5
10
20s
0
1 L1 3 L2 5 L3
3RW
A1A2 1
13 14/23 24
2 T1 4 T2 6 T3
5
10
20s
0
max
min 5
10
20s
0
1 L1
2 T1
3 L2 5 L3 IN1 A1
4 T2 6 T3 A2
Frame size S00
3RW301.
Frame size S0 to S3
3RW302./303./304.
READY LED Continuous
Flashing
Ready for operation
while starting up or coasting
down
BYPASSED LED Continuous Bypassed
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-33
Diagnostics
Table 8-15: 3RW30/31 diagnostics
8.3.7 Timing diagram
Starting and coasting-
down behavior
The following timing diagram shows the switchover times when the device
is switched on/off:
Fig. 8-18: Starting and coasting-down behavior
Malfunction Possible cause Remedy
READY LED off • Supply voltage too low • Check and adapt the supply
voltage at A1, A2
No reaction to control
input IN
(READY LED on)
• No supply voltage • Check fuses/line contactor
• Phase loss • Check fuses/line contactor
• Check voltages at L1 to L3
• Wrong cable connected to IN • Connect to IN as shown in the graphic
of the terminals
• No load • Connect the motor
Start the motor
directly
(BYPASSED LED on)
• The line voltage is switched off
and on in continuous operation
without operation of the con-
trol input IN
• Always switch the line contactor off and
on in conjunction with control input IN
L1-L2-L3
A1-A2
IN
Bypass
T1-T2-T3
U
U
N
S
On-delay approx. 80 ms ON
command OFF
command
ON
command
Switchover delay approx. 30 ms
Switchover delay approx. 30 ms
Switchover delay approx. 30 ms
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-34 A5E40534713002A/RS-AA/001
Supply interruption in
bypassed state
If the load voltage is switched off in the bypassed state while the auxiliary
supply continues to be applied at terminals A1/A2, the soft starter performs
a direct start of the motor after the load voltage is switched on again. To pre-
vent this, the "on" command must be removed in the event of the loss of the
main voltage.
The following graphic illustrates what happens when the supply is inter-
rupted in the bypassed state:
Fig. 8-19: Supply interruption in the bypassed state
L1-L2-L3
A1-A2
IN
Bypass
T1-T2-T3
UN
US
Direct start
Control supply
voltage on
Main voltage
on
Start command
Startup completed
Bypass closes
Failure of the
main voltage
Main voltage
returns
To avoid a direct start after the return of
the main voltage, the ON command must
be removed in the event of the failure
failure of the main voltage (Toff>= xx ms)
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-35
8.4 Accessories
The following accessories are available for the 3RW3 soft starters:
Table 8-16: Accessories, 3RW30/31
Control of the fan The fan is controlled by the control electronics of the soft starter.
It runs at the following times:
• When the fan is switched on: approx. 0.5 seconds after the bypass
contacts close (end-of-startup signal)
• When the fan is switched off: approx. 0.5 hours after the soft starter is
switched off
Attachment of the fan The fan is snapped into the recess provided on the underside of the soft
starter, and the plug-in cable is inserted in the corresponding connector. The
direction of installation is indicated on the fan by an arrow.
Additional parameter assignment is not necessary.
These fan modules mean that the starter can be installed in any position.
The only exception to this is when the fan cannot blow against the convec-
tion downward from above.
Description Order number
Fan for 3RW3.2.. 3RW3926-8A
Fan for 3RW303..
and 3RW304.. 3RW3936-8A
Terminal covers for box covers for
3RW303.. 3RT1936-4EA2
Terminal covers for box covers for
3RW304.. 3RT1946-4EA2
Terminal cover for bar connection for
3RW304.. 3RT1946-4EA1
Link modules for combination with 3RV1
circuit breaker 3RA19.1-1A (frame sizes S00 to S3)
RC element for control from PLC 3TX7462-3T
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-36 A5E40534713002A/RS-AA/001
Attachment of the fan
Fig. 8-20: Accessories: attachment of the fan
Terminal covers To provide additional finger protection, for frame sizes S2 and S3 the termi-
nal covers of the 3RT1 contactors of the same frame sizes can be used.
Installation on the soft starter is analogous to that on the contactors.
Link modules The same link modules are available for building fuseless feeders (soft
starter + 3RV circuit breaker) as are used for the 3RT contactor + 3RV circuit
breaker combinations.
Refer to the information and assignment tables in Section 8.3.2, "Installation
guidelines".
RC element If the 3RW30/31 soft starter is to be controlled from a PLC with a Triac or
thyristor output, malfunctioning can be avoided with an RC element. If there
is leakage current of more than 1 mA, without an RC element the soft
starter may interpret the drop in voltage that occurs at the input as an "ON"
command.
Connection example for
an RC element
Fig. 8-21: Connection example with an RC element
2
1
A2 A1 IN1
Auxiliary supply
PLC control contact
RC element
3RW30/31...
3RW3 Semiconductor motor control unit
SIRIUS System Manual
A5E40534713002A/RS-AA/001 8-37
8.5 Mounting and connection
8.5.1 Mounting
Snap-on attachment
The 3RW30 soft starters are snapped onto 35 mm rails in acc. with
EN 50 022 without a tool.
The starter is placed on the upper edge of the rail and pressed downward
until it snaps onto the lower edge of the rail.
Frame sizes S00 and S0 can be removed just as easily: The starters are
pressed downward so that the tension of the attachment springs is
loosened, and the starters can be removed.
In the case of frame sizes S2 and S3, these attachment springs are released
by a lug on the underside of the starter that can be moved using a screw-
driver.
8.5.2 Connection
Screw-type terminals The 3RW3 electronic soft starters are available with the SIGUT terminal sys-
tem and plus-minus POZIDRIV 2 screws.
Conductor
cross-sections
The following table shows the permissible conductor cross-sections for the
3RW30 electronic soft starters:
Table 8-17: Conductor cross-sections, 3RW30/31
3RW301.
L1 L2 L3
A1/A2; NO/NC
3RW302.
3RW312.
L1 L2 L3
3RW303.
L1 L2 L3
3RW304..
L1 L2 L3
∅ 5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in
2 to 2.5 Nm
18 to 22 lb.in ∅ 5 ... 6 mm /
PZ2
3 to 4.5 Nm
27 to 40 lb.in
4 to 6 Nm
35 to 53 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²) 2 x (0.75 to 16 mm²) 2 x (2.5 to 16 mm²)
2 x (0.5 to 2.5 mm²) 2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (0.75 to 16 mm²)
1 x (0.75 to 25 mm²)
2 x (2.5 to 35 mm²)
1 x (2.5 to 50 mm²)
—— — 2 x (0.75 to 25 mm²)
1 x (0.75 to 35 mm²)
2 x (10 to 50 mm²)
1 x (10 to 70 mm²)
AWG 2 x (18 to 14) 2 x (14 to 10) AWG 2 x (18 to 3)
1 x (18 to 2) AWG 2 x (10 to 1/0)
1 x (10 to 2/0)
min
22
4
10
13
17
10
13
17
13
17
3RW3 Semiconductor motor control unit
SIRIUS System Manual
8-38 A5E40534713002A/RS-AA/001
8.5.3 Circuit diagrams
There are two ways to connect up the 3RW3 soft starter:
• Control by button and locking of the ON button via the "ON" auxiliary
contact of the 3RW3
• Control by switch
Fig. 8-22: Circuit diagrams, 3RW3
3RW30
Fig. 8-23: Circuit diagrams, 3RW30
A1
IN1
K1
A2
N (L-)
L1 (L+)
K1
K1
ON
OFF
A2 A1 1
ON/OFF
N (L-) L1 (L+)
A1
A2 1
ON
OFF
13 14/23 24
3RW302.
3RW303./3RW304
N (L-) L1 (L+)
M
3RW30
3RU/3RB10
3RT
3RW30
3RV
I >
3~
M
3~
F1
K1
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A5E40534713002A/RS-AA/001 8-39
3RW31
Fig. 8-24: Circuit diagrams, 3RW31
Automatic operation Direct starting of the soft starter is possible as long as the auxiliary supply is
applied at terminals A1 and A2. To this end, a jumper is required between
the auxiliary supply contact A1 and the control contact IN.
The following must be taken into consideration:
• An on delay of up to 4 seconds can occur, depending on the frame size.
• Soft coasting down is no longer possible after the auxiliary supply is
switched off.
Control via PLC The 3RW3 soft starter can be controlled by means of a programmable con-
troller (PLC). It is connected up in the same way as for control via switch.
Important
Always ensure that A1 and A2 are connected up correctly. Although polarity
reversal cannot damage the device, it can lead to malfunctioning.
A1 1
ON/OFF
A2
2
ON/OFF
Ramp 1
Ramp 2
A1A2 1
K1
2
K2
L1 (L+)
N (L-) N (L-)
L1 (L+)
OFF
ON ON
K1
K1
K1K2
K2
K2
Ramp 1 Ramp 2
F2
F3
M
3~
. /.P
F1
3RU/3RB10
3RT
3RU/3RB10
3RT
K2
K1
F2 F3
3RW31
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8-40 A5E40534713002A/RS-AA/001
Control of a motor with
an electromechanical
brake
An electromechanical brake with infeed from the main voltage (L1/L2/L3)
should not be connected directly to the output of the soft starter. An electro-
mechanical brake should be controlled by means of a separate contactor (K1
in the circuit diagram below):
Fig. 8-25: Motor control with an electromechanical brake
Ue
I>> I>> I>>
M
3k
UVW
K1 BR BR2
Q1
L1
L2
L3
L1 L2 L3
T1 T2 T3
G1
F
L+
L -
A2 A1 IN
K1
13 14 23 24
ON
3RW30 BYPASSED
A1
A2
STOP
ON
K1
Us
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A5E40534713002A/RS-AA/001 8-41
8.6 Dimensional drawings (dimensions in mm)
mm abcdefgh i jk lmn
3RW301. 97.5 45 93 95 66 51 — 7.5 76 — 86 — 90 35
3RW302./3RW312. 125 45 119 125 81 63 96 7 101 63 14 7 115 35
3RW303. 160 55 143 141 95 63 115 8 119 77 18 7 150 30
3RW304. 170 70 183 162 108 87 156 8 132 87 22.5 7 160 60
k
j
i
b
a
l
m
n
5
c
h
5f
g
ed
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8.7 Technical specifications
8.7.1 Control electronics/power electronics
Control electronics
Type 3RW3. ..-1.B0. 3RW3. ..-1.B1.
Rated control supply voltage V 24 UC 110 to 230 UC
Rated control supply current mA Approx. 50 Approx. 25 to 20
Rated frequency at AC Hz 50/60 ± 10 %
Power electronics
Type 3RW3. ..-1.B.4 3RW3. ..-1.B.5 3RW30 ..-
1AA12
Voltage operating range V 200 AC to 460 AC, three-phase
(± 10 %)
460 AC to 575 AC, three phase
(± 10 % - 15 %)
115 AC t o
240 AC, single-
phase
(±10 %)
Rated frequency Hz 50/60 ± 10 %
Permissible site altitude Reduction of IE
Up to 1000 m above sea level
Up to 2000 m above sea level
Up to 3000 m above sea level
Up to 4000 m ab. sea level1)
100 %
92 %
85 %
78 %
Installation position Without additional fan
With additional fan 3)
The soft starters are designed for operation when mounted in a vertical position.
Any installation position (except vertical rotated by 180 °)
Ty p e
Frame size
3RW30 1.
S00
3RW3. 2.
S0
3RW30 3.
S2
3RW30 4.
S3
Continuous operation (% of Ie)%100
Minimum load2) (% of Ie); At 40 °C % 4
Permissible ambient temperature °C –25 to +60 (derating as of 40 °C, see below)
Switching capacity of the auxiliary
contacts
230 V/AC-15
230 V/DC-13
24 V/DC-13
A
A
A
4)
4)
4)
3
0.1
1
3
0.1
1
3
0.1
1
Type 3RW30 14 3RW30 16 3RW30 24 3RW30 25 3RW30 26
Current-carrying capacity
Rated operational current Ie
in acc. with IEC At 40/50/60 °C, AC-53b A 6/5/4 9/8/7 12.5/11/9 16/14/12 25/21/18
Rated operational current Ie
in acc. with UL/CSA At 40/50/60 °C, AC-53b A 4.8/4.8/4 7.8/7.8/7 11/11/9 17.5/14/12 25/21/18
Power loss at continuous rated operational current (40 °C) approx. W 5 7 7 9 13
Power loss when the max. switching frequency is exploited W 5 6 7 8 9
Permissible starts per hour without the use of a fan
Given intermittent duty S4, Tu = 40 °C 1/h 60 40 30 12
Duty cycle = 30%; stand-alone installation % 250 x Ie, 2 s 300 x Ie, 2 s
Permissible starts per hour with the use of a fan
Given intermittent duty S4, Tu = 40 °C
Duty cycle = 30%; stand-alone installation
1/h —3)54 21
Idle time after continuous operation s0 200
With Ie before a new start
Degree of protection In acc. with IEC 60 529 IP20 (terminal housing IP00)
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1)Over 4000 m on request
2)The rated current for the motor (specified on the motor's type plate) should amount at least to the specified percentage of the SIRIUS soft
starter's device rated current Ie.
3)In the case of frame size S00, it is not possible to install the fan provided as an accessory.
4)Frame size S00 does not have any auxiliary contacts.
Conductor cross-sections
Screw-type terminals
(1 or 2 conductors connectable)
for standard screwdrivers
size 2 and Pozidriv 2
Auxiliary conductors:
Single-core
Finely stranded with wire end
ferrule
AWG cables,
single- or multi-core
- Terminal screws
- Tightening torque
mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5) in acc. with IEC 60 947; max. 2 x (0.75 to 4)
mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5)
AWG 2 x (18 to 14)
M 3, PZ2
Nm
lb.in
0.8 to 1.0
7.1 to 8.9
0.8 to 1.0
7.1 to 8.9
Main conductors:
Single-core mm22 x (0.5 to 1.5);
2 x (0.75 to 2.5)
2 x (1 to 2.5)
2 x (2.5 to 6)
Finely stranded with wire end
ferrule
mm22 x (0.5 to 2.5) 2 x (1 to 2.5)
2 x (2.5 to 6)
Multi-core mm2——
Type 3RW30 14 3RW30 16 3RW30 24 3RW30 25 3RW30 26
AWG cables,
single- or multi-core AWG 2 x (18 to 14) 2 x (14 to 10)
- Terminal screws M 3, PZ2 M 4, PZ2
- Tightening torque Nm
lb.in
0.8 to 1.2
7 to 10.3
2 to 2.2
18 to 22
Power electronics
Type 3RW30 34 3RW30 35 3RW30 36 3RW30 44 3RW30 45 3RW30 46
Current-carrying capacity
Rated operational current Ie
in acc. with IEC At 40/50/60 °C, AC-53b A 32/27/23 38/32/27 45/38/32 63/54/46 75/64/54 100/85/72
Rated operational current Ie
in acc. with UL/CSA At 40/50/60 °C, AC-53b A 27/27/23 34/32/27 42/38/32 62/54/46 68/64/54 99/85/72
Power loss at continuous rated operational current (40 °C) approx. W 10 13 17 13 16 26
Permissible starts per hour
Given interm. duty S4, Tu = 40 °C 1/h 20 15 5 20 30 15
Duty cycle = 30 % % 300 x Ie, 3 s 300 x Ie, 4s
Permissible starts per hour with the use of a fan
Given interm. duty S4, Tu = 40 °C 1/h 44 27 9 32 48 24
Duty cycle = 30 %; stand-alone installation
Idle time after cont. operation s0 400 0
with Ie before a new start
Degree of protection In acc. with IEC 60 529 IP20 (terminal housing IP00) IP201)
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1) IP20 only with attached box terminal (delivery state). Without box terminal IP00.
2) Device class B (public power supply networks) is complied with only in the case of variants 3RW3.-1AB0. with control supply voltage UC
of 24 V. For the 3RW3.-1A.1. variants with a control supply voltage UC of 110 V to 230 V, single-stage filters (e.g. type B84143-A...) must be
connected upstream.
Conductor cross-sections
Screw-type terminals Auxiliary conductors:
(1 or 2 conductors connectable) Single-core mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5) in acc. with IEC 60 947; max. 2 x (0.75 to 4)
for standard screwdrivers Finely stranded with wire
end ferrule
mm22 x (0.5 to 1.5); 2 x (0.75 to 2.5)
size 2 and Pozidriv 2 AWG cables,
single- or multi-core AWG 2 x (18 to 14)
- Terminal screws M 3
- Tightening torque Nm
lb.in
0.8 to 1.0
7.1 to 8.9
Main conductors:
Single-core mm22 x (0.75 to 16)
Finely stranded with wire
end ferrule
mm22 x (0.75 to 16)
1 x (0.75 to 25)
Multi-core mm22 x (0.75 to 25)
1 x (0.75 to 35)
2 x (10 to 50)
1 x (10 to 70)
AWG cables,
single- or multi-core AWG 2 x (18 to 3)
1 x (18 to 2)
2 x (10 to 1/0)
1 x (10 to 2/0)
- Terminal screws M 6, box terminal, PZ2 M6 (Allan screw)
- Tightening torque Nm
lb.in
3 to 4.5
27 to 40
4 to 6
35 to 53
General specifications
Standard Parameters
EMC noise immunity
Electrostatic discharge (ESD) IEC 1000-4-2, Severity 3: 6/8 kV
El. magn. RF fields IEC 1000-4-3 Frequency range: 80 to 1000 MHz with 80 % at 1 kHz
Severity 3, 10 V/m
Conducted RF disturbance IEC 61000-4-6
EN 60 947-4-2
SN-IACS
Frequency range: 80 MHz to 1000 MHz with 80 %
at 1 kHz
10 V at 0.15 MHz to 80 MHz
3 V at 10 kHz to 80 MHz
Burst IEC 1000-4-4 Severity 3: 1/2 kV
Surge IEC 1000-4-5 Severity 3: 1/2 kV
EMC emitted interference
EMC radio interference intensity CISPR 11/09.1990 Limit value of class B at 30 MHz to 1000 MHz
Radio interference voltage CISPR 11/09.1990
EN 60 947-4-2
(0.15 MHz to 30 MHz): device class A (industry)
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8.7.2 Short-circuit protection and fuse coordination
IEC 60947-4-1/DIN VDE 0660 Part 102 draws a distinction between two
coordination types, known as coordination type 1 and coordination type 2. In
both coordination types, the short circuit to be dealt with is reliably discon-
nected. The differences lie only in the degree to which the device is
damaged after a short circuit.
Coordination type 1 The motor feeder can be operable after each short-circuit disconnection.
Damage to the soft starter is possible. The circuit breaker itself always
attains coordination type 1.
Coordination type 2 After a short-circuit event there must be no damage to the soft starter or
any other switching device; only the backup fuse may be destroyed. The
actual motor feeder can be put into operation again immediately once the
short circuit fuse has been replaced.
Maximum short-circuit
current
All the specified fuse configurations are designed for a maximum short-
circuit current of 50 kA. This ensures that short circuits of 50 kA can be
disconnected without posing a threat to persons or the system.
Motor feeder:
coordination type 1
Note on configuration:
A fuseless configuration is recommended for motor feeders (i.e. the combi-
nation of a 3RV circuit breakers and a 3RW30 soft starter). Coordination type
1 is thus attained.
Motor feeder:
coordination type 2
To set up a motor feeder of coordination type 2, the feeder must be fused
(i.e. the motor must be provided with overload protection).
The following can be used:
• The 3NE1 all-range fuse, which unifies line protection and semiconductor
protection
• The 3NE8 semiconductor protection fuse, in which case additional protec-
tion must be provided for the line
Comparison of
coordination types 1
and 2
The configuration variant on the basis of coordination type 2 is associated
with higher costs than that of coordination type 1, which is why the fuseless
configuration (coordination type 1) is recommended. The advantages are:
• Fewer components in the cubicle
• Less effort required for wiring
• Less cubicle space required
• Lower price
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Fuse configurations
with SITOR 3NE1..-0
The following table specifies the fuse configuration (coordination type 2) for
3RW30/31 with SITOR fuses 3NE1..-0 (short-circuit and line protection);
max. short-circuit current 50 kA:
Table 8-18: Fuse configurations (SITOR)
1)Fuse coordination for max. 400 V
2)Fuse coordination for max. 500 V
3)Fuse coordination with all-range fuses not possible;
pure semiconductor protection fuses plus circuit breakers
can be used instead (see following table)
Order number
of the soft starter
Order number
of the fuse
Rated current
of the fuse
Frame size of
the fuse
MLFB MLFB A
3RW30 14 3NE1814-01) 20 000
3RW30 16 3NE1815-01) 25 000
3RW30 24/3RW31 24 3NE1815-02) 25 000
3RW30 25/3RW31 25 3NE1815-02) 25 000
3RW30 26/3RW31 26 3NE1802-02) 40 000
3RW30 34 3NE1818-02) 63 000
3RW30 35 3NE1820-02) 80 000
3RW30 36 3NE1820-02) 80 000
3RW30 44 3NE1820-02) 80 000
3RW30 45 3NE1021-02) 100 00
3RW30 46 — 3) ——
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A5E40534713002A/RS-AA/001 8-47
Fuse configurations
with SITOR 3NE8
The following table specifies the fuse configuration (coordination type 2) for
3RW30/31 with SITOR fuses 3NE8 (semiconductor protection is provided by
the fuse; line protection and overload protection are provided by the circuit
breaker); max. short-circuit current 50 kA/400 V:
Table 8-19: Fuse configurations (SITOR)
1) Coordination with pure semiconductor protection fuses is not possible;
all-range fuses 3NE1..-0 can be used (see the table above)
2) The selection and setting of the circuit breaker is based on the rated
current for the motor
3) Note the unit of quantity
If the motor is to be configured to meet UL requirements, the order number
of the fuse must be specified (3NE80..-1).
Order number
of the soft starter
Order
number
of the fuse
Rated cur-
rent of the
fuse
Frame
size of
the fuse
Order
number
of the circuit
breaker2)
Link module
3RW - 3RV
MLFB MLFB A Size MLFB MLFB3)
3RW30 14 3NE80 03 35 00 3RV10 11 3RA19 11-1A
3RW30 16 3NE80 03 35 00 3RV10 11 3RA19 11-1A
3RW30 24/
3RW31 24 3NE80 03 35 00 3RV10 21 3RA19 21-1A
3RW30 25/
3RW31 25 3NE80 03 35 00 3RV10 21 3RA19 21-1A
3RW30 26/
3RW31 26 —1) —— — —
3RW30 34 3NE80 22 125 00 3RV10 31 3RA19 31-1A
3RW30 35 3NE80 24 160 00 3RV10 31 3RA19 31-1A
3RW30 36 3NE80 24 160 00 3RV10 31 3RA19 31-1A
3RW30 44 3NE80 24 160 00 3RV10 41 3RA19 41-1A
3RW30 45 3NE80 24 160 00 3RV10 41 3RA19 41-1A
3RW30 46 3NE80 24 160 00 3RV10 41 3RA19 41-1A
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Fuseless configuration The following table specifies the components of the fuseless configuration
(coordination type 1) for 3RW30/31; short-circuit current of 50 kA/400 V:
Table 8-20: Motor feeder: fuseless configuration
1) The selection and setting of the circuit breaker is based on the rated
current for the motor
2) 50 mm clearance is required above and below between the 3RW and
grounded parts
3) Note the unit of quantity
Order number
of the soft starter
Order number
of the circuit breaker1) Link module
MLFB MLFB MLFB3)
3RW30 14 3RV10 112) 3RA19 11-1A
3RW30 16 3RV10 112) 3RA19 11-1A
3RW30 24/3RW31 24 3RV10 21 3RA19 21-1A
3RW30 25/3RW31 25 3RV10 21 3RA19 21-1A
3RW30 26/3RW31 26 3RV10 21 3RA19 21-1A
3RW30 34 3RV10 31 3RA19 31-1A
3RW30 35 3RV10 31 3RA19 31-1A
3RW30 36 3RV10 31 3RA19 31-1A
3RW30 44 3RV10 41 3RA19 41-1A
3RW30 45 3RV10 41 3RA19 41-1A
3RW30 46 3RV10 41 3RA19 41-1A
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Fused configuration The following table specifies the components of the fused configuration
(coordination type 1) for 3RW30/31; short-circuit current of 50 kA/400 V:
Table 8-21: Motor feeder: fused configuration
1) The selection and setting of the overload relay is based on the rated cur-
rent for the motor
2) Short-circuit current of 50 kA to max. 400 V
3) Short-circuit current of 50 kA to max. 500 V
4) 50 mm clearance is required above and below between the 3RW and
grounded parts
Order number
of the soft
starter
Order
number
of the fuse
Fuse rated
current/
frame size
Order number
of the therm.
overload
relay1)
Order
number
of the elec-
tron. over-
load relay1)
Order
number
of the
contactor
MLFB MLFB A / size MLFB MLFB MLFB
3RW30 14 3NA38 10 25 / 00 3RU11 162)4) 3RB10 162)4) 3RT10 15
3RW30 16 3NA38 10 25 / 00 3RU11 162)4) 3RB10 162)4) 3RT10 16
3RW30 24/
3RW31 24 3NA38 22 63 / 00 3RU11 263) 3RB10 263) 3RT10 24
3RW30 25/
3RW31 25 3NA38 22 63 / 00 3RU11 263) 3RB10 263) 3RT10 25
3RW30 26/
3RW31 26 3NA38 24 80 / 00 3RU11 263) 3RB10 263) 3RT10 26
3RW30 34 3NA38 30 100 / 00 3RU11 363) 3RT10 34
3RW30 35 3NA38 30 100 / 00 3RU11 363) 3RT10 35
3RW30 36 3NA38 30 100 / 00 3RU11 363) 3RT10 36
3RW30 44 3NA31 44 250 / 1 3RU11 463) 3RT10 44
3RW30 45 3NA31 44 250 / 1 3RU11 463) 3RT10 45
3RW30 46 3NA31 44 250 / 1 3RU11 463) 3RT10 46
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8.7.3 Site altitude
If the site altitude is above 1000 m, the following are necessary:
• A reduction in the rated current for thermal reasons
• A reduction in the rated voltage on account of the diminished dielectric
strength
Reductions as a func-
tion of site altitude
The diagram below plots the reductions in rated current and rated operating
voltage as a function of site altitude:
Fig. 8-26: Reductions as a function of site altitude
0 500 1000 1500 2000 2500 3000 3500 4000
70
75
80
85
90
95
100
105
Ue reduction
Ie reduction
Site altitude in m
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8.7.4 Specifications in acc. with IEC
The specified motor ratings are guide values.
The soft starter must be selected on the basis of the rated current Ie.
The motor ratings are based on the values specified in DIN 42 973 (kW) and NEC 96 / UL 508 (hp).
Ambient temperature = 40 °C
Table 8-22: 3RW3 motor ratings in acc. with IEC at 40 °C
Ambient temperature = 50 °C
Ambient temperature = 60 °C
230 V 400 V IeOrder number 500 V IeOrder number
Pe in kW Pe in kW In A MLFB Pe in kW In A MLFB
1.5 3 6 3RW30 14-1CB.4 — — —
2.2 4 9 3RW30 16-1CB.4 — — —
3 5.5 12.5 3RW30 24-1AB.4 7.5 12.5 3RW30 24-1AB.5
4 7.5 16 3RW30 25-1AB.4 7.5 16 3RW30 25-1AB.5
5.5 11 25 3RW30 26-1AB.4 15 25 3RW30 26-1AB.5
7.5 15 32 3RW30 34-1AB.4 18.5 32 3RW30 34-1AB.5
11 18.5 38 3RW30 35-1AB.4 22 38 3RW30 35-1AB.5
11 22 45 3RW30 36-1AB.4 30 45 3RW30 36-1AB.5
19 30 63 3RW30 44-1AB.4 37 63 3RW30 44-1AB.5
22 37 75 3RW30 45-1AB.4 45 75 3RW30 45-1AB.5
30 55 100 3RW30 46-1AB.4 70 100 3RW30 46-1AB.5
230 V 400V IeOrder number 500 V IeOrder number
Pe in kW Pe in kW In A MLFB Pe in kW In A MLFB
1.1 2.2 5 3RW30 14-1CB.4 — — —
1.5 4 8 3RW30 16-1CB.4 — — —
3 5.5 11 3RW30 24-1AB.4 5.5 11 3RW30 24-1AB.5
4 5-5 14 3RW30 25-1AB.4 7.5 14 3RW30 25-1AB.5
5.5 11 21 3RW30 26-1AB.4 11 21 3RW30 26-1AB.5
7.5 11 27 3RW30 34-1AB.4 15 27 3RW30 34-1AB.5
7.5 15 32 3RW30 35-1AB.4 18.5 32 3RW30 35-1AB.5
11 18.5 38 3RW30 36-1AB.4 22 38 3RW30 36-1AB.5
15 22 54 3RW30 44-1AB.4 30 54 3RW30 44-1AB.5
18.5 30 64 3RW30 45-1AB.4 37 64 3RW30 45-1AB.5
22 45 85 3RW30 46-1AB-4 55 85 3RW30 46-1AB.5
Table 8-23: 3RW3 motor ratings in acc. with IEC at 50 °C
230 V 400 V IeOrder number 500 V IeOrder number
Pe in kW Pe in kW In A MLFB Pe in kW In A MLFB
0.75 1.5 4 3RW30 14-1CB.4 — — —
1.5 3 7 3RW30 16-1CB.4 — — —
2.2 4 9 3RW30 24-1AB.4 5.5 9 3RW30 24-1AB.5
3 5.5 12 3RW30 25-1AB.4 7.5 12 3RW30 25-1AB.5
4 7.5 18 3RW30 26-1AB.4 11 18 3RW30 26-1AB.5
5.5 11 23 3RW30 34-1AB.4 15 23 3RW30 34-1AB.5
7.5 11 27 3RW30 35-1AB.4 15 27 3RW30 35-1AB.5
7.5 15 32 3RW30 36-1AB.4 18.45 32 3RW30 36-1AB.5
11 22 46 3RW30 44-1AB.4 30 46 3RW30 44-1AB.5
15 22 54 3RW30 45-1AB.4 30 54 3RW30 45-1AB.5
18.5 37 72 3RW30 46-1AB.4 45 72 3RW30 46-1AB.5
Table 8-24: 3RW3 motor ratings in acc. with IEC at 60 °C
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8.7.5 Specifications in acc. with NEMA
The specified motor ratings are guide values.
The soft starter must be selected on the basis of the rated current Ie.
The motor ratings are based on the values specified in DIN 42 973 (kW) and NEC 96 / UL 508 (hp).
Ambient temperature = 40 °C
Ambient temperature = 50 °C
Ambient temperature = 60 °C
200V 230 V 460V IeOrder number 460V 575V IeOrder number
Pe in hp Pe in hp Pe in hp In A MLFB Pe in hp Pe in hp In A MLFB
1 1 3 4.8 3RW30 14-1CB.4 — — — —
2 2 5 7.8 3RW30 16-1CB.4 — — — —
3 3 7.5 11 3RW30 24-1AB.4 7.5 10 11 3RW30 24-1AB.5
5 5 10 17.5 3RW30 25-1AB.4 10 15 17.5 3RW30 25-1AB.5
7.5 7.5 15 25.3 3RW30 26-1AB.4 15 20 25.3 3RW30 26-1AB.5
7.5 7.5 20 27 3RW30 34-1AB.4 20 25 27 3RW30 34-1AB.5
10 10 25 34 3RW30 35-1AB.4 25 30 34 3RW30 35-1AB.5
10 15 30 42 3RW30 36-1AB.4 30 40 42 3RW30 36-1AB.5
20 20 40 62.1 3RW30 44-1AB.4 40 60 62.1 3RW30 44-1AB.5
20 25 50 68 3RW30 45-1AB.4 50 60 68 3RW30 45-1AB.5
30 30 75 99 3RW30 46-1AB.4 75 100 99 3RW30 46-1AB.5
Table 8-25: 3RW3 motor ratings in acc. with NEMA at 40 °C
200V 230 V 460V IeOrder number 460V 575V IeOrder number
Pe in hp Pe in hp Pe in hp In A MLFB Pe in hp Pe in hp In A MLFB
1 1 3 4.8 3RW30 14-1CB.4 — — — —
2 2 5 7.8 3RW30 16-1CB.4 — — — —
3 3 7.5 11 3RW30 24-1AB.4 7.5 10 11 3RW30 24-1AB.5
3 3 10 14 3RW30 25-1AB.4 10 10 14 3RW30 25-1AB.5
5 5 15 21 3RW30 26-1AB.4 15 15 21 3RW30 26-1AB.5
7.5 7.5 20 27 3RW30 34-1AB.4 20 25 27 3RW30 34-1AB.5
7.5 10 20 32 3RW30 35-1AB.4 20 30 32 3RW30 35-1AB.5
10 10 25 38 3RW30 36-1AB.4 25 30 38 3RW30 36-1AB.5
15 20 40 54 3RW30 44-1AB.4 40 50 54 3RW30 44-1AB.5
20 20 40 64 3RW30 45-1AB.4 40 60 64 3RW30 45-1AB.5
25 30 60 85 3RW30 46-1AB.4 60 75 85 3RW30 46-1AB.5
Table 8-26: 3RW3 motor ratings in acc. with NEMA at 50 °C
200 V 230 V 460 V IeOrder number 460 V 575 V IeOrder number
Pe in hp Pe in hp Pe in hp In A MLFB Pe in hp Pe in hp In A MLFB
0.75 0.75 2 4 3RW30 14-1CB.4 — — — —
1.5 1.5 3 7 3RW30 16-1CB.4 — — — —
2 2 5 9 3RW30 24-1AB.4 5 7.5 9 3RW30 24-1AB.5
3 3 7. 5 1 2 3 R W 3 0 2 5 - 1 A B - 4 7. 5 1 0 1 2 3 R W 3 0 2 5 - 1 A B . 5
5 5 10 18 3RW30 26-1AB.4 10 15 18 3RW30 26-1AB.5
5 7.5 15 23 3RW30 34-1AB.4 15 20 23 3RW30 34-1AB.5
7.5 7.5 20 27 3RW30 35-1AB.4 20 25 27 3RW30 35-1AB.5
7.5 10 20 32 3RW30 36-1AB.4 20 30 32 3RW30 36-1AB.5
10 15 30 46 3RW30 44-1AB.4 30 40 46 3RW30 44-1AB.5
15 20 40 54 3RW30 45-1AB.4 40 50 54 3RW30 45-1AB.5
20 25 50 72 3RW30 46-1AB.4 50 60 72 3RW30 46-1AB.5
Table 8-27: 3RW3 motor ratings in acc. with NEMA at 60 °C
SIRIUS System Manual
A5E40534713002A/RS-AA/001 9-1
9
3RE Enclosed starter
Section Subject Page
9.1 Specifications/regulations/approvals 9-2
9.2 Device description 9-3
9.3 Application and areas of use 9-5
9.3.1 The enclosed starter in motor branches 9-5
9.3.2 Planning and operation 9-5
9.4 Accessories 9-6
9.5 Mounting and connection 9-7
9.5.1 Mounting 9-7
9.5.2 Connection 9-7
9.5.3 Circuit diagrams 9-8
9.6 Dimensional drawings 9-9
9.7 Technical Data 9-10
3RE Enclosed starter
SIRIUS System Manual
9-2 A5E40534713002A/RS-AA/001
9.1 Specifications/regulations/approvals
Standards IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100)
IEC 60 947-5, EN 60 947-5 (VDE 0660 Part 200)
IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 102)
The 3RE enclosed starter does not meet UL standards required for use in
the United States.
Protection against
electrical shock
The 3RE enclosed starters are touch safe according to DIN VDE 0106,
Part 100.
3RE Enclosed starter
SIRIUS System Manual
A5E40534713002A/RS-AA/001 9-3
9.2 Device description
Functions The 3RE enclosed starters are available as direct starters or reversing
starters that are used for both the switching of motors and the current
dependent protection of motors. The switching of the motors is done by the
3RT10 contactor. The current dependent protection is achieved by using
either the 3RU11 thermal overload relays or 3RB10 the electronic overload
relays with the wide adjustment range.
These combination starters of contactor(s) and overload relay are mounted
in a molded plastic enclosure which has the IP65 degree of protection rating
thus provides protection against dust and spraying water. The operating
device, that preforms the local manual on and off switching also fulfills this
high degree of protection.
Device designs The 3RE enclosed starters are available as a direct starter in three frame
sizes for motors with one direction of rotation up to 22 kW at 400 V.
• The frame size S00 is suitable for three phase motors up to 5.5 kW at
400 V AC and a maximum motor current of 12 A. The starters are available
in the following two variants:
- Molded plastic enclosure for a direct starter including the contactor – the
thermal or electronic overload relay needs to be selected according to the
rated motor current and ordered separately.
- Molded plastic enclosure for a direct starter (without the contactor) – the
contactor as well as the thermal or electronic overload relay need to be
selected according to the rated motor current and ordered separately.
• The frame size S0 is suitable for three phase motors up to 11 kW at 400 V
AC and a maximum motor current of 25 A. The starters are available in the
following two variants:
- Molded plastic enclosure for a direct starter including the contactor – the
thermal or electronic overload relay needs to be selected according to the
rated motor current and ordered separately.
- Molded plastic enclosure for a direct starter (without the contactor) – the
contactor as well as the thermal or electronic overload relay need to be
selected according to the rated motor current and ordered separately.
• The frame size S2 is suitable for three phase motors up to 22 kW at
400 V AC and a maximum motor current of 50 A. The starters are available
in the following variant:
- Molded plastic enclosure for a direct starter (without the contactor) – the
contactor as well as the thermal or electronic overload relay need to be
selected according to the rated motor current and ordered separately.
3RE Enclosed starter
SIRIUS System Manual
9-4 A5E40534713002A/RS-AA/001
The 3RE enclosed starters are available as reversing starters in two frame
sizes for motors with two directions of rotation up to 11 kW at 400 V.
•The frame size S00 is suitable for three phase motors up to 5.5 kW at
400 V AC and a maximum motor current of 12 A. The starters are available
in the following two variants:
- Molded plastic enclosure for a reversing starter including the contactor
combination – the thermal or electronic overload relay needs to be
selected according to the rated motor current and ordered separately.
- Molded plastic enclosure for a reversing starter (without the contactor
combination) – the contactor combination as well as the thermal or elec-
tronic overload relay need to be selected according to the rated motor
current and ordered separately.
•The frame size S0 is suitable for three phase motors up to 11 kW at 400 V
AC and a maximum motor current of 25 A. The starters are available in the
following variant:
- Molded plastic enclosure for a reversing starter (without the contactor
combination) – the contactor combination as well as the thermal or elec-
tronic overload relay need to be selected according to the rated motor
current and ordered separately.
Detailed information More detailed technical data on the 3RE enclosed starters can be found in
Section 9.7 "Technical data".
Furthermore detailed information regarding the contactors can be found in
Chapter 3 and for the overload relays in Chapter 4.
3RE Enclosed starter
SIRIUS System Manual
A5E40534713002A/RS-AA/001 9-5
9.3 Application and areas of use
9.3.1 The enclosed starter in motor branches
Enclosed starter:
Enclosure + contac-
tor(s) + overload relay
The enclosed starters, which consist of a contactor (combination) and a ther-
mal or electronic overload that are protected against dust and spraying water
by the molded plastic enclosure, serve to switch the motor and provide cur-
rent dependent protection for the motor. Short-circuit protection must be
provided by fuses or circuit breakers (see short-circuit protection).
Short-circuit
protection
Short-circuit protection needs to be provided by either fuses (fused method)
or circuit breakers (fuseless method). The coordination of corresponding
short-circuit protection devices for the combinations of contactor and over-
load can be found in Section 4.7 “Technical data”. When selecting the load
feeders from the table the types of coordination need to be taken into con-
sideration.
Types of coordination The types of coordination (DIN EN 60947-4-1 (VDE 0660 part 102)) describe
how the devices perform after a short-circuit. They are broken down into two
types:
With type of coordination 1: In the event of a short-circuit, persons and equip-
ment must not be in danger from the contactor or starter. These do not have to
be suitable for subsequent operation (without repair and replacement of parts).
With type of coordination 2: In the event of a short-circuit, persons and equip-
ment must not be in danger from the contactor or starter. These must be
suitable for subsequent operation. There is a risk of welding of the contacts.
9.3.2 Planning and operation
Areas of use The 3RE enclosed starters serve to switch the motor and provide current
dependent protection for the motor up to 22 kW at 400 V AC.
Supply voltage The starters including the contactor come with the following rated control
voltages:
Frame size S00: 230 V, 50/60 Hz and 400 V, 50/60 Hz
Frame size S0: 230 V, 50 Hz and 400 V, 50 Hz
The 3RU11 thermal overload relay and the 3RB10 electronic overload relay
do not require any special supply voltage.
Setting The 3RU11 thermal overload relay and the 3RB10 electronic overload relay
are to be set for the rated motor current corresponding to the instructions
for the overload relays.
3RE Enclosed starter
SIRIUS System Manual
9-6 A5E40534713002A/RS-AA/001
Environmental
requirements
The enclosed starters can be operated without being derated in the tem-
perature range of 0 °C to +35 °C. At temperatures over 35 °C the highest
current setting value of the setting range needs to be derated by a certain
factor:
The corresponding table shows that 45 °C has a derating factor of 13 %.
Switching ON/OFF The direct starter switches on the load by means of the white button (I). The
black button (O) is used to switch off the load.
The reversing starter can start the motor in the corresponding rotation by
turning the upper switch clockwise- or counter clockwise. A change in the
rotation of the motor is possible by pressing the black button (O).
Manual and automatic
RESET
On the direct starter for the frame sizes S00 and S0 you can choose either
automatic or manual reset of the overload relay. When using manual reset
the black button (O) is the RESET button. This button must be actuated after
an overload trip before it is possible to restart the motor.
The other starters come only with the automatic-RESET function.
Information regarding the setting of either automatic or manual reset on the
overload relay can be found in chapter 4 for overload relays under the corre-
sponding topic.
Recovery time The recovery time for the overload relays after tripping due to an overload,
phase imbalance, or phase loss can be found in chapter 4 for overload relays
under the corresponding topic.
Tripping characteris-
tics/phase loss protec-
tion
Information regarding tripping characteristics as a result of overload, phase
imbalance, or phase loss can be found in chapter 4 for overload relays under
the corresponding topic.
Enclosure The enclosure comes with an IP65 degree of protection rating with ground-
ing terminals, operating device and metric knockouts.
9.4 Accessories
There are no accessories for the 3RE enclosed starter.
Ambient temperature in °C Derating factor for the highest current setting value
+35
+45
1. 0
0.87
3RE Enclosed starter
SIRIUS System Manual
A5E40534713002A/RS-AA/001 9-7
9.5 Mounting and connection
9.5.1 Mounting
Mounting options There are two options when mounting the 3RE enclosed starter:
• The first option is to use the 3RE10 direct starter or 3RE13 reversing
starter. These consist of a molded plastic enclosure with operating device
and integrated contactor or integrated contactor combination. All that
needs to be done is to mount the overload relay (to be ordered separately)
to the integrated contactor or integrated contactor combination in accor-
dance with the installation instructions of the overload relay. The wiring is
quick and easy with the prefabricated wiring (for related connection notes
see section 9.5.2).
• The second option is to use the 3RE19 molded plastic enclosure with inte-
grated operating device. The contactor/contactor combination and over-
load relay, can be bought separately as pre-assembled combinations or as
individual components for self assembly (see note regarding various
designs and the Mounting/Connection in Chapter 3 "Contactor combina-
tions for reversing"). The overload relay needs to be installed according to
the note regarding the direct mounting of the overload to the contactor or
contactor combination. The self assembled or pre-assembled combination
is snapped on to the DIN rail in the molded plastic housing.
Mounting position When considering the mounting position of the starter, the allowable
mounting position of the overload relay needs to be observed.
9.5.2 Connection
Connection options The method of conductor connection as well as the type of screw driver,
bit size, tightening torque and conductor cross-section (min.; max.) can be
taken from the individual devices from sections 3.5 and 4.7.
Protection against
electrical shock
The 3RE enclosed starters are touch safe according to DIN VDE 0106,
part 100.
3RE Enclosed starter
SIRIUS System Manual
9-8 A5E40534713002A/RS-AA/001
9.5.3 Circuit diagrams
The following shows the proper wiring of the 3RE enclosed starter.
F1
135
246
K1
A1(A2)
A2(A1)
.3
.4
.3
.4
I
S1
95
96
97
98
TEST
RESET/ 0
M
3~
WV
U
135
246
L1
L2
L3
N
PE
(95)
(96)
F2
F1
135
246
A2
A1
.3
.4
.3
.4
I
S1
TEST
RESET
STOP
F2
M
3~
WV
U
135
246
O.1
.2
S2
L1
L2
L3
N
PE
95
96
97
98
K1
L1
L2
L3
F2
K1
K2
M
3~
W
V
U
F1
N
PE
135
246
135
246
135
246
S0
K1
K1
A1
A2 (F2 A2)
21
22
A1
21
22
K2
53
54
S2
K2 K1
K2 A2
F2
96
95
.4
.3
II 0 I
.1
.2
.4
.3
53
54
F2 ( 2 2)
L1
L2
L3
F2
K1
K2
M
3~
WV
U
F1
N
PE
135
246
135
246
135
246
S0
K1
K1
.3
.4
A1
A2
111
112
A1
122
121
K2
.4
.3
S2
K2 K1
K2
A2
F2
96
95
.4
.3
II 0 I
.1
.2
.4
.3
Direct starter, frame size S00 and S0 Direct starter, frame size S2
Reversing starter, frame size S00 Reversing starter, frame size S0
3RE Enclosed starter
SIRIUS System Manual
A5E40534713002A/RS-AA/001 9-9
9.6 Dimensional drawings
Fig. 9-1: Dimensions of the 3RE enclosed starter
mm Ø a b c d e (3RE1...-..B..)
Direct starter S00 4.5 150 160 85 98 2xM25
Direct starter S0 4.5 180 190 105 118 2xM25
Direct starter S2 7 240 250 160 160 2xM32
Reversing starter S00/S0
a
e
e
b
cd
3RE Enclosed starter
SIRIUS System Manual
9-10 A5E40534713002A/RS-AA/001
9.7 Technical Data
3RE Enclosed starter
Note: Further technical data for the individual devices can be found in Chapter 3 for contactors and
Chapter 4 for overload relays.
General data
Type 3RE1. 10,
3RE19 13
3RE1. 20,
3RE19 23
3RE10 30,
3RE19 33
Specifications
IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100)
IEC 60 947-5, EN 60 947-5 (VDE 0660 Part 200)
IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 102)
Yes
Yes
Yes
Frame size S00 S0 S2
Max. rated current INmax
(= max. rated operational current Ie)
A12 25 50
Rated insulation voltage Ue
(Pollution degree 3)
V400
Rated impulse withstand voltage Uimp kV 4
Permissible ambient temperature
In operation
In storage
°C
°C
-20 to +35 (over + 35 °C derating required)
-55 to +80
Permissible rated current of the overload relay
with an ambient temperature:
+35°C
+ 45 °C
%
%
100
87
Degree of protection according to IEC 60 947-1 IP65
Shock-hazard protection according to VDE 0106
part 100
Touch safe
Installation altitude m up to 2000 over sea level; exceeding that level on request
Conductor cross-sections see section 4.7 "Technical Data"
Short circuit protection
Main power circuit see section 4.7 "Technical Data"
Auxiliary circuit see section 4.7 "Technical Data"
SIRIUS System Manual
A5E40534713002A/RS-AA/001 Index-1
Index
Numerics
35 mm rail 6-14
3-phase busbar system 2-43
3-phase busbars 2-43, 2-44
3RW3 soft starter 8-15
3RW31 special variant 8-11
4-pole contactor 3-25, 3-42, 3-110
4-pole contactor combination for reversing 3-42
A
A/B-Technique 1-28
Accessories 1-10, 3-54, 5-8
Actuator-sensor interface (AS-Interface) 1-22
Adapters for individual installation 4-33
Adding to the auxiliary contacts 3-58
Additional load module 3-75
Address 1-25
Addressing socket 1-25
Advantages of load feeders/combination starters
with overload relays 4-14
Alarm switch 2-17
ALPHA/LOVAG 1-3
Ambient requirements 4-17, 4-24, 9-6
Ambient temperature 3-20
Analog modules 1-25
Analog output 4-7, 4-27
Application notes for the use of 3RV1 downstream
from frequency converters 2-72
Approvals/test reports 4-2
Areas of use 4-16, 4-23, 9-5
AS-Interface compact starter 1-30
AS-Interface load feeder 1-29
AS-Interface SaW 1-27
Assembly kits for reversing combinations 3-39
Assembly kits for star-delta combinations 3-50,
3-51
ATEX-Approval 2-4
Auxiliary conducting path, integrated 3-57
Auxiliary connecting lead terminal, 3-pole 3-83
Auxiliary contact 3-25, 3-57, 3-58
Auxiliary contact elements with make-before-
break contacting 3-61
Auxiliary contact repeat terminal 4-41
Auxiliary contact, BYPASSED 8-32
Auxiliary contactors 3-32
Auxiliary contacts 2-6, 2-17, 4-19, 5-6, 8-12
Auxiliary release 2-6, 2-17
Auxiliary switch blocks 3-57
Auxiliary switch, at side 3-60
Auxiliary switch, at the front 3-59
B
Banks of capacitors 3-26
Base plate 2-47
Bay 2-34
Bistable 4-26
Box terminal blocks 4-33
Box terminal construction type 6-5
Break-loose torque 8-14
Busbar adapter 2-39
Busbar mounting 5-14, 5-20
Busbar systems 2-39
C
Cable coupler capacitances 8-32
Cable release 4-32
Cage Clamp terminal 1-19, 3-32, 3-94
Cage Clamp-Technology 4-41
Cage-type clamping unit 1-19
Capacitor contactors 3-112
Capacitor switching capacity 3-27
Capacitor-switching contactors 3-26
Changing the contact pieces 3-103
Changing the magnetic coils 3-98
Characteristics 2-11
Circuit breaker 3RV1 2-5
Circuit diagrams 4-43, 5-23, 8-38, 9-8
Circuit example 8-29
Coasting-down time 8-31
Coding plug set (7PX9904) 7-8
Coding system 1-25
Coil voltage tolerance 3-21
Combination and wide-range voltages 7-6
Combination voltage 7-6
Combinations for reversing 3-118
Commissioning 8-30
Communication 1-10
Communication-capable motor starter 1-29
Compact modules 1-26
Compensating for different depths 3-52
SIRIUS System Manual
Index-2 A5E40534713002A/RS-AA/001
Index
Complete devices 5-5
Components 1-12
Conductor cross-sections 3-96, 5-21, 6-15
Conductor cross-sections for main and auxiliary
connections 3-96
Connected in parallel 3-87
Connecting lead 6-12
Connection 3-94
Connection comb 6-12
Connection cross-sections 1-21
Connection module 1-31
Connection of the main conducting path 3-84
Connection options 4-41, 4-42, 9-7
Connection tool 1-18
Constant operation 3-21
Contact pieces 3-105
Contact reliability 3-15, 3-33
Contactor combinations for reversing 3-35, 3-118
Contactor combinations for wye-delta starting
3-120
Contactor relays 1-12, 3-110, 6-3
Contactors - 4-pole 3-110
Contactors with 4 main contacts 3-25, 3-42,
3-110
Contactors with an extended operating range
3-28, 3-113
Continuous loading when connected in 3-87
Control relays 1-12
Control supply voltage 5-6
Control supply voltage, failure 4-26
Control using PLC 3-76
Coordination type 4-12
Coordination type 1 3-13, 5-2
Coordination type 2 3-13, 5-2
Coordination types 5-2, 9-5
Correction factors 8-20
Coupling element 3-76
Coupling links 6-3
Coupling links for direct attachment 6-7
Cover 7-23
Current and voltage limitation 8-14
Current gain 6-10
Current setting 2-7, 8-20
D
DC brakes 8-14
DC power supply 4-33
Degree of protection 1-24, 2-3, 3-14
Device circuit diagrams 2-50
Device combinations 1-14
Device designs 4-8, 9-3
Device holder 2-42
Device variants 5-3
Diagnostics 8-33
Digital modules 1-25
Dimensional drawings 2-52, 5-24
DIN rail mounting 3-92, 5-18
Diode 3-80
Diode combination 3-80
Direct attachment 6-7
Direct current loads 2-10
Direct mounting 4-34, 4-40
Direct starters 5-14
Disconnector specifications 2-3
Display system 1-25
Disturbances 3-84
E
Electrical isolation 6-9
Electrical remote RESET 4-30
Electrical service life 3-4
Electromagnetic compatibility 7-2
Electromagnetic overcurrent release 2-12
Electromechanical remote reset 4-30
Electromotive force 3-84
Electronic device overload protection 8-14
Electronically optimized auxiliary switch
blocks 3-58
EMC interference suppression module 3-84
EMC suppression module 3-84
Emergency-Stop 1-27
Emergency-Stop button 2-37
Emergency-Stop devices 1-27
EN 50 005 3-3
EN 50 011 3-3
EN 50 012 3-3
Enclosed starter
Enclosure + contactor(s) + overload relay 9-5
Enclosure 2-34, 9-6
End holder 6-13
End plate, coupling links 6-13
Energy-saving operation 8-14
Environmental protection 1-11
Environmental requirements 1-11
ET 200S 1-30
ET 200X 1-30
Event messages 8-32
Explosion protection 1-3, 2-10
Explosion-proof motors 4-3, 4-13
Extended operating range 3-28
Extended terminal covers 8-13
F
Failsafe motor starter 1-32
Fan 8-13, 8-35
Features/Customer benefits 4-6
Feeder lugs 2-44
Feed-in terminal block 3-49
F-K i t 1-31
Frequency converter 8-8
Frequency sensitivity of the short-circuit
releases 2-12
SIRIUS System Manual
A5E40534713002A/RS-AA/001 Index-3
Index
Front plates 2-35, 2-36
Function diagrams 7-16
Function setting 7-14
Functional extra-low voltage (FELV) 3-9
Functions 4-15, 4-22, 7-13
Fuseless load feeder for rail mounting 5-9
Fuseless load feeders/combination starters for
busbar mounting 5-14
G
Galvanic isolation 6-10
Ground fault protection 4-28
H
Hand-held controller 1-30
High Feature motor starter 1-31
High long-term stability 4-7
Higher ambient temperature 3-20
Housing 2-10, 2-34
I
Identifying letters 7-15
Indicator lights 2-37
Individual installation 4-37, 4-40
Input modules 6-5
Inrush currents 2-13
Installation guidelines 8-18
Installation on horizontal surfaces 3-93
Installation/Removal 4-30
Installing in series 3-31
Insulation displacement method 1-26
Integrated auxiliary contacts 4-6
Interface modules 6-3
Interference 6-10
Internal power supply 4-7
Isolating distance 8-3
Isolation 8-3, 8-11
K
Kits 5-5
KTA certificate 2-4
L
Label set 7-14, 7-22
Large current setting knob 4-6
Laser scanners 1-27
Latched auxiliary contactors 3-33
LED module 3-83
Level adaptation 6-10
Light curtains 1-27
Limit the residual voltage 3-75
Limiter function 2-70
Limiting tripping current 4-20
Line lengths 8-19
Link modules 5-8
Load control 7-6
Load feeder 3RA5 1-29
Load feeders 1-13
Load feeders (combination starters) with
communication capability1-13
Locking device 2-37
Locking during maintenance work 2-30
Looping of the cables 4-42
Low ambient temperatures 3-22
Lugs and connecting bars 1-18
M
Main and emergency stop switches 2-15
Making/ breaking capacity 3-87
Manual Motor Starter 2-66
Manual/auto RESET 4-15
Manual/automatic switchover 4-18
Manual-automatic RESET 4-18, 4-24, 9-6
Maximum number of auxiliary contacts 3-60
Mechanical interlock 3-119
Mechanical interlocking 3-25
Mechanical life 3-14
Mechanical thru-the-door reset 4-31
Minimal clearance 4-39, 4-40
Minimal power losses 4-7
Modular system 1-10
Mono- and bistable output relays 4-25
Monostable 4-26
Motor contactors 1-12
Motor protection 2-13
Motor protection with overload relay function
2-14
Motorized remote-control mechanism 2-22
Mounting 9-7
Mounting kits 5-5
Mounting options 3-91, 4-34, 4-40
Mounting plate 1-25
Mounting position 3-92, 4-39, 4-40, 9-7
Mounting systems 5-4
N
NC contact interlock 3-35
Network structures 1-24
No load 8-33
Nodes 1-24, 1-28
Normal and heavy starting 4-12
Normal switching duty 8-3, 8-11
Number of auxiliary switches, maximum 3-60
O
Operating limits 4-2
Operating time adjustment 7-8
Operation with Frequency converters 4-12
Optocoupler 6-2
Outgoing terminal rail 2-42
Output modules 6-5
Overload protection 3-48
Overload relay function 2-14
Overload relays 1-12, 1-13
SIRIUS System Manual
Index-4 A5E40534713002A/RS-AA/001
Index
Overload relays in star-delta combinations 4-11
Overload release 2-6
Overload warning 4-7, 4-28
Overvoltage 3-78
P
Panel mounting 1-16, 3-91, 5-19
Paralleling links 3-87
PELV 3-9
Permissible residual current 3-75
Phase firing 8-9
Phase loss 8-33
Phase loss protection 4-21, 4-29
Phase loss sensitivity 2-10, 2-13
Plug-in relay coupling links 6-6
Pole-changing motors 8-11
Positively driven contacts 3-7
Positively driven operation 3-7
Potentiometers 8-17
Power gain 6-10
Precharging resistors 3-26, 3-27
Procedure 1-20
PROFIBUS 1-22
PROFIsafe 1-23
R
Railway vehicles 2-4
Ramp time 8-31
Ramp times 8-17
RC-Element 3-79
Reactive-current compensation 3-26
Recovery time 4-19, 4-24, 9-6
Reduction in starting current 8-6
Reductions 8-16
Relay 6-2
Relay coupling modules 6-4
Remote-controlled mechanism 2-22
Removal 4-31, 4-32
Repeatability 7-7
RESET-Function 4-6
Resetting plunger 4-31
Resistance to extreme climates 4-3
Response threshold 2-15
Retainer, coupling links 6-13
Reversing 3-35
Reversing combination 3-35
Root 3 circuits 8-15
Rules for installing Circuit breakers/MSPs 2-71
S
Safe isolation 3-7, 3-8, 6-9
Safety at Work 1-27
Safety extra-low voltage (SELV) 3-9
Safety modules 1-27
Safety monitors 1-27
Safety technology 1-10
Screw terminals 3-94
Screw-type terminals 1-18, 6-8, 7-5
Sealing 2-8
Sealing cover 3-88, 4-16, 4-17, 4-23, 4-33
Second ramp time 8-32
Self-assembly kits 3-39
Self-monitoring 4-28
Semiconductor coupling links 6-22
Semiconductor coupling modules 6-4
Service life 3-22
Setting 4-16, 4-23, 8-11, 8-41, 9-5
Setting accuracy 7-7
Shielding 1-24
Shipbuilding certificates 2-4
Ships’ systems 4-3
Shock protection 2-3, 3-3, 3-89, 4-3, 4-41, 4-42,
9-2, 9-7
Short time operation 3-20
Short-circuit breaking capacity 2-10, 2-68
Short-circuit protection 2-10, 3-13, 4-12, 9-5
Short-circuit release 2-6, 2-11
Shunt release 2-19
Side module 2-42
Signal transmission 6-10
SIGUARD power modules 1-31
SIKOSTART 3RW22 8-14
SIKOSTART 3RW34 8-15
Single-phase loads 2-10
SIRIUS NET 1-29
SIRIUS system 1-5
Snap-on attachment 3-92, 6-7, 6-14, 8-37
Snap-on mounting 1-16, 5-18
Soft coasting-down function 8-12
Soft starter 1-13, 8-3, 8-9
Soft starting function 8-12
Soldering pin adapter 3-85
Soldering pin connector 2-48, 3-32, 3-85
Solid-state time relay blocks with semiconductor
output 3-72
Solid-state time relays 1-13
Stand-alone installation 8-18
Standard 3RW30 variant 8-11
Standard motor starter 1-31
Standards 2-3, 4-2, 7-2
Star starting 8-7
Star-delta combinations 3-46, 8-16
Star-delta starter 8-7
Star-delta starting 3-48
Start contact 7-5
Starter
Contactor + overload relay 4-10
Starter protection 2-13
Starting current 8-6
Starting current ratio 3-48
Starting time 8-31
Starting torque 8-16
Starting voltage 8-17, 8-31
SIRIUS System Manual
A5E40534713002A/RS-AA/001 Index-5
Index
Status display 4-6
Status indication 4-19, 4-25
STOP-Function 4-19, 4-25
Straight-through current transformer 4-6, 4-41,
4-42
Summation current transformer 4-33
Supply interruption in the bypassed state 8-34
Supply power 4-16, 4-23, 9-5
Supply voltage 8-33
Surface casing 2-34
Surge suppressor 3-80
Switch ES motor starter 1-32
Switching capacitive loads 6-8
Switching capacity 3-4, 3-5, 3-6, 7-2
Switching direct current 2-15
Switching frequency 8-20, 8-31
Switching inductive loads 6-8
Switching ON/OFF 9-6
Switch-over pause 3-35, 3-48
Switch-over time 3-35
T
Technical specifications 2-63, 8-41
Temperature compensation 4-7
Temperature monitoring 8-14
Terminal covers 3-89, 4-33, 8-13
Terminal for contactor coils 3-49, 4-41
Termin a l markings 3-3
Terminals for contactor coils 3-49
Terminating resistors 1-24
TEST-Function 4-6, 4-19, 4-25
Testing overload tripping 2-9
Thermal load carrying capacity 3-21
Thermal overload release 2-11, 2-13
Thermistor motor protection-Function 4-27
Thermistor-Motorschutz-Funktion 4-27
Three-phase current asynchronous motors 8-6
Three-phase induction motors 2-13
Three-pole load 2-10
Time ramps 8-12
Time-current characteristics 2-3
Time-delay auxiliary contact block 3-116
Time-delay auxiliary switch 3-69
Time-delay time relay blocks, on-delay 3-116
Time-delayed overload release 4-2
Time-delayed overload releases 4-2
Timing diagram 8-33
Tool 1-20
Transformer protection 2-13
Trip classes > CLASS 10 4-7
Tripping characteristics 2-13, 4-20, 4-28
Tripping characteristics/Phase loss protection
9-6
Tripping classes 2-6, 4-2
Two-conductor connection 3-95
Two-tier construction type 6-5
Two-wire time relay 7-6, 7-19
Type E 2-66
U
UL/CSA 1-4
Undervoltage release 2-19
Uniformity 1-10
Unwanted signals 3-78
Utilization categories 3-3
V
Vacuum-switching tubes 3-103
Variable setting of the trip classes 4-7
Varistor 3-79
Voltage ranges 3-34
W
Weld free 3-13
Wide current adjustment ranges 4-7
Wide-range voltage 7-5
Wiring kits 5-8
SIRIUS System Manual
Index-6 A5E40534713002A/RS-AA/001
Index
