238
MEDER electronic
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Reed Sensor with
Screw Thread Enclosure
MK11 + MK 11/M8 Series
DESCRIPTION
MK11 sensors are magnetically operated Reed
Sensors with screw thread enclosure supplied with
interconnect cable. The sensor should be mounted
on a xed surface with the actuating magnet on
the moving surface. Introduction or removal of the
magnetic eld determines the closing and opening
of the Reed Switch.
APPLICATIONS
Piston end travel and position detection
End motion detection for linear drives
Machine industry
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•
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DIMENSIONS
All dimensions in mm [inch]
FEATURES
Stainless steel and plastics designs with thread
for space adjustment
High power switches available
Other cables, connectors and colors available
Various case sizes available
Five operate sensitivities available
A choice of cable terminations and lengths are
available
•
•
•
•
•
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fine thread M5 x 0.5
7.00 25.00
3.00
[0.984]
[0.276]
[0.118]
MK11 (Stainless Steel)
Ø 6.00
38.00
1.30 6.00
Ø 6.00
5.50
Ø 4.50
ws 13
2 x plastics nut
Thread M8 x 1,25
[0.236]
[0.236]
[0.177]
[0.217]
[0.236]
[1.496]
[0.051]
MK11/M8 (Plastics)
239
MEDER electronic
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MAGNETIC SENSITIVITY
TERMINATION
Part Number Example
MK11 - 1A66 C - 500 W
MK11/M8 - 1A66 C - 500 W
66 is the switch model
C is the magnetic sensitivity
500 is the cable length (mm)
W is the termination
ORDER INFORMATION
For wire and termination details please consult factory.
MK11 + MK11/M8 Series
Series Contact-
form
Switch-
model
Magnetic
Sensitivity
Cable
Length (mm) Termination
MK11 - 1A XX X XXX X
Options
1A
66 B, C, D, E
500* W
52, 85 C, D, E
1C 90** C, D, E
* Other cable lengths available.
** Only for MK11/M8 (plastics).
Sensitivity Class Pull In
AT Range
B 10 - 15
C 15 - 20
D 20 - 25
E 25 - 30
W
The cable cut length includes:
5 mm of wire stripped and tinned.
Reed Sensor with
Screw Thread Enclosure
240
MEDER electronic
www.meder.com
Reed Sensor with
Screw Thread Enclosure
CONTACT DATA (Stainless Steel + Plastics)
MK11 +MK11 /M8 Series
All Data at 20° C Switch Model →
Contact Form →
Switch 52
Form A
Switch 66
Form A
Contact Ratings Conditions Min. Typ. Max. Min. Typ. Max. Units
Switching Power Any DC combination of V & A not
to exceed their individual max.‘s
50
70 (VA) 10 W
Switching Voltage DC or peak AC 250 200 V
Switching Current DC or peak AC 0.5 0.5 A
Carry Current DC or peak AC 2.5 1.25 A
Static Contact Resistance w/ 0.5 V & 10 mA 200 150 mΩ
Dynamic Contact Resistance Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure 200 mΩ
Insulation Resistance across
Contacts 100 volts applied 1010 1010
*Ω
Breakdown Voltage across
Contact Voltage applied for 60 sec. min. 600 225* VDC
Operate Time incl. Bounce Measured w/ 100 % overdrive 1.0 0.5 ms
Release Time Measured w/ no coil suppression 0.1 0.1 ms
Capacitance at 10 kHz cross contact 0.2 0.2 pF
Contact Operation **
Must Operate Condition Steady state eld 10 30 10 60 AT
Must Release condition Steady state eld 4 27 4 54 AT
Environmental Data
Shock Resistance 1/2 sinus wave duration 11 ms 50 50 g
Vibration Resistance From 10 - 2000 Hz 20 20 g
Ambient Temperature 10°C/ minute max. allowable -20 85 -20 85 oC
Stock Temperature 10°C/ minute max. allowable -35 85 -35 85 oC
Soldering Temperature 5 sec. 260 260 oC
Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch.
* Insulation resistance of 1012 and breakdown voltage of 480 VDC is available.
** These ranges refer to the uncut / unmodied Reed Switches described in our Reed Switch section. Consult factory if more
detail is required.
241
MEDER electronic
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All Data at 20° C Switch Model →
Contact Form →
Switch 85
Form A
Switch 90
Form B/C
Contact Ratings Conditions Min. Typ. Max. Min. Typ. Max. Units
Switching Power Any DC combination of V & A not
to exceed their individual max.‘s 100 20 W
Switching Voltage DC or peak AC 400 175 V
Switching Current DC or peak AC 1.0 0.5 A
Carry Current DC or peak AC 2.5 1.0 A
Static Contact Resistance w/ 0.5 V & 10 mA 150 250 mΩ
Dynamic Contact Resistance Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure 200 mΩ
Insulation Resistance across
Contacts 100 volts applied 1010 109Ω
Breakdown Voltage across
Contact Voltage applied for 60 sec. min. 4000 200 VDC
Operate Time incl. Bounce Measured w/ 100 % overdrive 1.0 0.7 ms
Release Time Measured w/ no coil suppression 0.1 1.5 ms
Capacitance at 10 kHz cross contact 0.2 1.0 pF
Contact Operation **
Must Operate Condition Steady state eld 20 60 15 40 AT
Must Release condition Steady state eld 12 54 6 AT
Environmental Data
Shock Resistance 1/2 sinus wave duration 11 ms 50 50 g
Vibration Resistance From 10 - 2000 Hz 20 20 g
Ambient Temperature 10°C/ minute max. allowable -20 85 -20 85 oC
Stock Temperature 10°C/ minute max. allowable -35 85 -35 85 oC
Soldering Temperature 5 sec. 260 260 oC
Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch.
* Insulation resistance of 1012 and breakdown voltage of 480 VDC is available.
** These ranges refer to the uncut / unmodied Reed Switches described in our Reed Switch section. Consult factory if more
detail is required.
MK11/+ MK11/M8 Series
CONTACT DATA (only Plastics)
Reed Sensor with
Screw Thread Enclosure