D-136 Safety Sensors / Components
Guard Lock Safety-door Switch
D4BL
Protective Doors Are
Locked Until Machines
Completely Stop Operating
• A mechanical lock is applied automatically when the
Operation Key is inserted. A high level of safety is
achieved using a mechanism where the lock is only
released when voltage is applied to the solenoid.
• Conforms to EN (TÜV) standards corresponding to
the CE marking.
• Approved by UL, CSA, BIA, and SUVA standards.
• The switch contact is opened by a direct opening
mechanism (NC contacts only) when the protective
cover is opened. Direct opening mechanism that is
EN-approved is indicated by on the switch.
• Auxiliary release key ensures easy maintenance and
unlocks the door in the case of a power failure.
• Tough aluminum die-cast body incorporating a
switch box with degree of protection satisfying IP67,
UL, and CSA TYPE6P, 13.
• Equipped with a horizontal and vertical conduit open-
ing.
• Models incorporating easy-to-see indicators for mon-
itoring and those using an adjustable Operation Key
for a double door are available.
• The mounting direction of the head can be changed
to allow the Operation Key to be inserted from four di-
rections.
• Metric conduit types available
Model Number Structure
Model Number Legend
1234 5
1
D4BL - -
1. Conduit Size (2-conduit)
3. Head Mounting Direction
5. Indicator
D4BL - K
Switch
Operation Key (Order Separately)
1. Operation Key Type
1: PG13.5
2: G1/2
3: 1/2-14NPT
4: M20
C: 1NC/1NO (slow-action) + 1NC (slow-action)
D: 2NC (slow-action) + 1NC (slow-action)
R: Four mounting directions possible (right-side mounting at
shipping)
4. Door Lock and Release
(Auxiliary Release Key is Incorporated by All Models)
A: Mechanical lock/24-VDC solenoid release
B: Mechanical lock/110-VAC solenoid release
G: 24-VDC Solenoid lock/Mechanical release
Blank: Without indicator
A: 10 to 115 VAC or VDC driving (with orange
and green LED indicator unit)
1: Horizontal mounting
2: Vertical mounting
3: Adjustable mounting (Horizontal)
2. Built-in Switch (with Safety Switch and Lock Monitor
Switch Contacts)
D4BL
D-137D4BL
Ordering Information
List of Models
Switches
Operation Keys (Order Separately)
Specifications
Approved Standards Standards and EC Directives
Conforms to the following EC Directives:
Machinery Directive
Low Voltage Directive
EN1088
Lock
method
Conduit
size
Voltage
for
solenoid
Without indicator
1NC/1NO+ 1NC
(Slow-action)
With LED indicator
1NC/1NO+ 1NC
(Slow-action)
Without indicator
2NC+ 1NC
(Slow-action)
With LED indicator
2NC+ 1NC
(Slow-action)
Mechanical
lock
PG13.5 24 VDC D4BL-1CRA D4BL-1CRA-A D4BL-1DRA D4BL-1DRA-A
110 VAC D4BL-1CRB D4BL-1CRB-A D4BL-1DRB D4BL-1DRB-A
G1/2 24 VDC D4BL-2CRA D4BL-2CRA-A D4BL-2DRA D4BL-2DRA-A
110 VAC D4BL-2CRB D4BL-2CRB-A D4BL-2DRB D4BL-2DRB-A
M20 24 VDC D4BL-4CRA D4BL-4CRA-A D4BL-4DRA D4BL-4DRA-A
110 VAC D4BL-4CRB D4BL-4CRB-A
Solenoid
lock
Pg 13.5 24 VDC D4BL-1CRG D4BL-1CRG-A D4BL-1DRG D4BL-1DRG-A
G1/2 24 VDC D4BL-2CRG D4BL-2CRG-A D4BL-2DRG D4BL-2DRG-A
M20 24 VDC D4BL-4CRG-A
Mounting type Model
D4BL-K1
D4BL-K2
D4BL-K3
Horizontal mounting
Vertical mounting
Adjustable mounting
(Horizontal)
Agency Standard File No.
TÜV Rheinland EN60947-5-1
BIA GS-ET-19
Mechanical lock:
9402293
Solenoid lock:
1998 20462-01
SUVA SUVA E6186/2.d
UL UL508 E76675
CSA CSA C22.2, No.14 LR45746
R9451050
(Direct opening:
approved)
D-138 Safety Sensors / Components
Approved Standard Ratings
TÜV (EN60947-5-1)
Use a 10-A fuse type gI or gG that conforms to IEC269 as a short-circuit protection device.
UL/CSA (UL508, CSA C22.2 No. 14)
A300
Note:
The UL/CSA approved rating for products with indicators (-A) is 6 A/115 VAC.
Characteristics
Note: 1.
The above values are initial values.
2.
Although the switch box is protected from dust, oil or water penetration, do not use the D4BL in places where dust, oil, water, or chemicals
may penetrate through the key hole on the head, otherwise Switch damage or malfunctioning may occur.
3.
The durability is for an ambient temperature of 5°C to 35°C and an ambient humidity of 40% to 70%.
Item Standard model Indicator model
Utilization category AC-15 AC-15
Rated operating current (Ie) 3 A 6 A
Rated operating voltage (Ue) 250 V 115 V
Rated voltage Carry current Current Volt-amperes
Make Break Make Break
120 VAC 10 A 60 A 6 A 7,200 VA 720 VA
240 VAC 30 A 3 A
Degree of protection IP67 (See note 2.)
Durability (See note 3.) Mechanical:1,000,000 operations min.
Electrical:500,000 operations min. (10-A resistive load at 250 VAC)
Operating speed 0.05 to 0.5 m/s
Operating frequency 30 operations/min max.
Rated frequency 50/60 Hz
Operating characteristics
Direct opening force:19.61 N min. (EN60947-5-1)
Direct opening travel:20 mm min. (EN60947-5-1)
All stroke:23 mm min.
Holding force 700 N min. (GS-ET-19)
Insulation resistance 100 MW min. (at 500 VDC)
Rated insulation voltage (Ui) 300 V (EN60947-5-1)
Conventional enclosed thermal current
(Ithe)10 A (EN60947-5-1)
Dielectric strength (Uimp)
Impulse dielectric strength (Uimp) 4 kV (EN60947-5-1) between terminals of different polarity, be-
tween each terminal and ground, and between each terminal and non-current-carrying metal
part;
2.5 kV between solenoid and ground (EN60947-5-1)
Conditional short-circuit current 100 V (EN60947-5-1)
Pollution degree
(operating environment) 3 (EN60947-5-1)
Protection against electric shock Class I (with ground terminal)
Switching overvoltage 1,500 V max. (EN60947-5-1)
Contact resistance 50 mW max. (initial value)
Vibration resistance Malfunction: 10 to 55 Hz, 0.35-mm single amplitude
Shock resistance Destruction:1,000 m/s2 min. (IEC68-2-27)
Malfunction:300 m/s2 min. (IEC68-2-27)
Ambient temperature Operating:–10°C to 55°C (with no icing)
Ambient humidity Operating:95% max.
Weight Approx. 800 g
D4BL
D-139D4BL
Solenoid Coil Characteristics
Indicator Characteristics
Contact Form (Diagrams Show State with Key Inserted and Lock Engaged)
Note:
The EN-approved direct opening mechanism is indicated by on the switch.
Item 24-VDC mechanical lock models 110-VAC mechanical lock models 24-VAC solenoid lock models
Rated operating voltage 24 VDC +10%/–15% (100% ED) 110 VAC ±10% (50/60 Hz) 24 VDC +10%/–15% (100% ED)
Current consumption Approx. 300 mA Approx. 98 mA Approx. 300 mA
Insulation Class F (130°C or less)
Item LED
Rated voltage 10 to 115 VAC/VDC
Current leakage Approx. 1 mA
Color (LED) Orange, green
Model Contact Diagram Remarks
D4BL-#C##-#1NC/
1NO+1NC
o
D4BL-#D##-#2NC+1NC
31 32 11 12
24
23
Stroke
ON
Lock position
Operation Key
insertion comple-
tion position
Extraction
completion
position
Only NC contacts 11-12
and 31-32 have an
approved direct
opening mechanism.
The terminals 11-12
and 23-24 can be
used as unlike poles.
12
22
113231
21
Stroke
ON
Lock position
Operation Key
insertion comple-
tion position
Extraction
completion
position
NC contacts 11-12,
21-22, and 31-32
have an approved
direct opening
mechanism.
The terminals 11-12
and 21-22 can be
used as unlike poles.
D-140 Safety Sensors / Components
Connections
Indicator Unit
Dimensions
Internal Circuit
Circuit Connection Example
•
Do not connect the indicators to the safety contact terminals (11-
12-31-32) or the safety circuit side.
•
When using indicators, connect them to the auxiliary circuit side
(monitor circuit) or the solenoid input terminals as shown below.
•
The indicators can be used to confirm the open/closed status of the
door, the ON/OFF status of the power supply, and the ON/OFF sta-
tus of the solenoid.
•
Do not connect the indicators in parallel with the direct opening
contact. If the indicators are broken, a short-circuit current may
flow, causing equipment to malfunction.
•
The 24-VDC solenoid terminals have polarity. Confirm the polarity
before wiring.
•
Be sure to use a special pushbutton switch to stop and start
machinery and release locks.
(16)
(16)
(7)
(35) 26.2
(61.2)
0.3
5.6
26.8 53.2 57.2
2 10.6
(12.6)
Two, 7 dia.
Four terminal plates
Two LED indicators
R
ZD
RLED
10 to 115 VAC/DC
Constant-current diode
1211 32
E2 (−)
E1 (+)
31
23 24
1211 32
E2 (−)
E1 (+)
31
23 24
1211 32
E2 (−)
E1 (+)
31
21 22
1211 32
E2 (−)
E1 (+)
31
21 22
1. Orange: Lights when the solenoid turns ON.
Green: Lights when the door opens.
(Power supply side)
Solenoid
LED (orange)
LED (green)
Auxiliary circuit
(monitor circuit) Safety circuit (Ground side)
2. Orange: Lights when the solenoid turns ON.
Green: Lights when power turns ON.
(Power supply side)
Solenoid
LED (orange)
LED (green)
Auxiliary circuit
(monitor circuit) Safety circuit (Ground side)
3. Orange: Lights when the solenoid turns ON.
Green: Lights when door closes.
(Power supply side)
Solenoid
LED (orange)
LED (green)
Auxiliary circuit
(monitor circuit) Safety circuit (Ground side)
4. Orange: Lights when the solenoid turns ON.
Green: Lights when power turns ON.
(Power supply side)
Solenoid
LED (orange)
LED (green)
Auxiliary circuit
(monitor circuit) Safety circuit (Ground side)
D-141D4BL
D4BL
Nomenclature
Dimensions
Note: 1.
All units are in millimeters unless otherwise indicated.
2.
Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Switches
Operating Characteristics D4BL-####
Key insertion force
Key extraction force
19.61 N max.
19.61 N max.
Movement before being locked 15 mm max.
D4BL-#C##-#D4BL-#D##-#
Operation Key
Lock plate
Rotating drum
Operation plunger
Seal ring (NBR)
Auxiliary plunger
Seal packing (NBR)
Rotating lever
Safety switch
Seal packing (NBR)
Ground terminal M3.5
Solenoid
Lock monitor switch
Auxiliary release key
Operation Key
Lock plate
Rotating drum
Operation plunger
Seal ring (NBR)
Auxiliary plunger
Seal packing (NBR)
Rotating lever
Safety switch
Seal packing (NBR)
Ground terminal M3.5
Solenoid
Lock monitor switch
Auxiliary release key
Conduit opening
(Pull out
horizontally)
Connection
terminal M3.5
Conduit opening
(Pull out
vertically)
Conduit opening
(Pull out
horizontally)
Connection
terminal M3.5
Conduit opening
(Pull out
vertically)
100±0.1
74±0.1
112+1
0
86+1
0
34.2
(123.5)
6.8
(116.5)
10
15
5.5
7
37.5
31.5
17
16
39.6
46.3
Conduit opening
Indicators
Conduit opening
Cover
D4BL-####-#
Red
Four, M3.5 head
clamping screws
Lock
protection
cap
Four, 5.3 dia.
mounting
holes
Four, M4
cover
clamping
screws
D-142 Safety Sensors / Components
Operation Keys
78.7 20±0.15
12
40.7
25.8 15.6 7.3 15
5.3 5.3
36
11.8
5.6
2.6 7.5
20
53.7 13
40±0.15 52.4
15.6
25.8
11.8
5.6
36
2.6
5.3 11.9 7.5
20
40
30±0.15
30
11.8
5.6
26
40
12 20
(80.7)
36 2.6
19.5±0.1
(37.8)
17.5
34.6
4 dia.
5.3 dia.
M4 Allen-head bolt
5.3 x 7.3 long mounting hole
4 dia.
4 dia.
Two, 2.65R
Horizontal Mounting
D4BL-K1
Vertical Mounting
D4BL-K2
Adjustable Mounting (Horizontal)
D4BL-K3
Red
Red
Red
Red
Long mounting hole
D4BL
D-143D4BL
With Operation Key Inserted
Note: 1.
Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
2.
In the above diagrams, the Operation Key is inserted from the front.
(30±0.15)
(41) (40)
(35)
(41)
(41) (13)
(40±0.15)
(41)
(35)
(20±0.15) (20±0.15)
(35)
(41)
(41) (12)
81.5 min. 85 max. 81.5 min. 85 max.
Adjustable Mounting (Horizontal)
D4BL + D4BL-K3
Horizontal Mounting
D4BL + D4BL-K1
Vertical Mounting
D4BL + D4BL-K2
54.5 min. 58 max. 54.5 min. 58 max.
53.5 min. 57 max. 53.5 min. 57 max.
Red
Red
Horizontal direction
Operation Key insertion radius
R ≥ 1200
Vertical direction
Operation Key insertion radius
R ≥ 1000
Red Horizontal direction
Operation Key insertion radius
R ≥ 1200
Vertical direction
Operation Key insertion radius
R ≥ 1000
Horizontal direction
Operation Key insertion radius
R ≥ 250
Vertical direction
Operation Key insertion radius
R ≥ 1000
D-144 Safety Sensors / Components
Precautions
Caution
Do not insert the Operation Key to the Switch with the door open.
Before using the machine, be sure to remove the shock-absorbing
damper, which is provided before shipping. Otherwise the ma-
chine may start operating and injury may be caused.
Mount the Operation Key at a location where it will not come in con-
tact with users when the door is opened or closed.
When operating the D4BL as a part of a safety circuit or an emer-
gency stop circuit to prevent injury, operate the NC contacts that
have a direct opening mechanism in direct opening mode. For safety
purposes, tighten the switch body and Operation Key with one-way
screws or equivalents or install a switch protection cover and warn-
ing label for safety purposes to prevent easy removal of the D4BL.
Connect the fuse to the D4BL in series to prevent it from short-circuit
damage. The value of the breaking current of the fuse must be calcu-
lated by multiplying rated current by 150% to 200%.
When using the D4BL with EN ratings, use 10-A fuse Type gI or gG
that complies with IEC60269.
In order to prevent the D4BL from burning due to overvoltage, insert
a protection fuse into the solenoid circuit.
If the D4BL is imposed with force exceeding the lock strength, the
D4BL may break and the equipment may continue to operate.
Auxiliary Release Key
The auxiliary release key is used to unlock the D4BL in case of
emergency or in case the power supply to the D4BL fails.
Use an appropriate tool to set the auxiliary release key to UNLOCK
so that the lock will be released and the door can be opened.
The auxiliary release key applied to the door of a machine room
ensures the safety of people adjusting the equipment in the machine
room. If the auxiliary release key is set to UNLOCK, the door will not
be locked when the door is closed and no power will be supplied to
the equipment.
To lock the door, set the auxiliary release key to LOCK.
Do not use the auxiliary release key to start or stop machines.
To prevent the auxiliary release key from being handled carelessly by
unauthorized people, seal the auxiliary release key with sealing wax
and the provided seal cap to ensure IP67.
Make sure that the auxiliary release key is kept with the person in
charge.
Before attaching the cover to the D4BL, make sure that the auxiliary
release key position is set to LOCK.
Stopper
Correct Use
Operating Environment
Due to the wear and tear of the sealing of the D4BL, water and some
types of oil and chemical sprayed onto the D4BL may cause contact
or insulation failures, current leakages, or fires.
Do not use the D4BL in the following locations.
•
Locations subject to severe temperature changes
•
Locations subject to high temperatures or condensation
•
Locations subject to severe vibration
•
Locations where the product may come in contact with metal dust,
oil, or chemicals
Operation Key
The D4BL is provided with a shock-absorbing damper to protect the
D4BL from damage that may result from dropping the D4BL during
transportation. Be sure to remove the damper after mounting the
D4BL.
The mounting tolerance of the Operation Key is ±0.3 mm vertically or
horizontally. Be sure to mount the D4BL correctly without leaning,
otherwise the D4BL may soon break or wear out.
Do not drop the D4BL with the Operation Key inserted, otherwise the
Operation Key may deform or break.
UNLOCK
LOCK
Auxiliary
release key
Stopper
Switch
Do not use the Switch as
a stopper. When mounting
the Switch, be sure to lo-
cate a stopper as shown
in the following illustration
to prevent the top of the
Operation Key from hitting
the switch head.
±0.3 min.
±0.3 min.
D4BL
D-145D4BL
The head is constructed so that it cannot be operated with tools such
as screwdrivers. Always use OMRON’s Operation Key to operate the
head in order to ensure the safety of the machine and protect the
D4BL from damage.
The Operation Key provided for the D4BL is not compatible with that
of the D4BS.
Mount the Operation Key and secure it with one-way screws or
equivalents to prevent easy removal of the D4BL.
Securing the Door
If the Operation Key on the closed door is pulled outside the set zone
by a force caused by vibration, the door’s weight, or the door cushion
rubber, the D4BL may be damaged. Secure the door with hooks so
that it will remain within the set zone.
Tightening Torque
Be sure to tighten each screw of the D4BL properly, otherwise the
D4BL may malfunction.
Switch and Operation Key Mounting
Mount the D4BL and Operation Key with four M5 screws with wash-
ers and tighten each screw to the specified torque.
Mounting Dimensions
Switch Mounting Dimensions
Operation Key Mounting Holes
•
Horizontal Mounting
D4BL-K1
•
Vertical Mounting
D4BL-K2
•
Adjustable Mounting (Horizontal)
D4BL-K3
Type Torque
1M3.5 terminal screw
(including terminal screw) 0.59 to 0.78 N·m
2 Cover mounting screw 1.18 to 1.37 N·m
3 Head mounting screw 0.78 to 0.98 N·m
4 M5 body mounting screw 4.90 to 5.88 N·m
5 Operation Key mounting screw 2.35 to 2.75 N·m
6 Connector 1.77 to 2.16 N·m
7 Cap screw 1.27 to 1.67 N·m
Drop
Set zone
Space
Two, M5 Operation Key mounting screw
Four, M3.5 head-mounting screw
Conduit Conduit cap
Four, M4 cover-mounting screw
Four, M5
switch-mounting
screw
100±0.1
74±0.1
Four, M5
20±0.1
Two, M5
40±0.1
Two, M5
30±0.1
Two, M5
D-146 Safety Sensors / Components
Head Directions
The head can be mounted in four directions. To remove the head,
turn the head by 45° as shown in figures A and B below.
To change the direction of the head, make sure that the protruding
part of the rotating lever engages with the groove of the plunger.
Then turn the head clockwise or counterclockwise to the desired
direction. At that time, make sure that the groove of the plunger is
located under the rotating lever. If the direction of the head is not set
when the plunger is rotated by 45°, the groove of the plunger presses
the rotating lever. The head, plunger, or the built-in switch may be
damaged as a result.
Head Direction Changes
Be sure to check the mechanical lock and solenoid release functions
when mounting the D4BL.
If the head direction is changed, recheck the tightening torque of
each of screw. Make sure that no foreign materials will penetrate
through the key hole on the head.
Mounting the Cover
When tightening the cover, first check the specified torque, and then
tighten each screw to the that torque. Also, make sure that no foreign
matter has entered the switch.
When mounting the cover, make sure that the cover and switch box
are properly aligned.
(A) (B)
(45∞)
(45∞)
Left
Front
Bac
k
Right
Head Bottom View Switch Top View
Operation plunger and
groove mechanism
Rotation lever and
protruding part
Switch body
Plunger (with groove)
Built-in switch
Normal Positions of Rotating Lever and Plunger
Rotating lever (with
protruding part)
D4BL
D-147D4BL
Processing and Connecting Cable/Conduit
The following procedures are recommended for mounting and wiring
the indicator unit securely.
In order to ensure IP67, use OMRON’s SC-
#
M and Nippon Flex’s
ABS-08Pg13.5 and ABS-12 Pg13.5 Connectors.
Recommended cable: UL2464-type cable that is 20 to 18 AWG (0.5
to 1.0 mm
2
) in size and has seven conductors
If the 1/2-14NPT is used, cover the cable and conduit end with seal-
ing tape in order to ensure IP67. Tighten the connector to a torque of
1.77 to 2.16 N·m.
Connect the indicator unit after connecting the seven-conductor
cable.
Properly attach and securely tighten the provided conduit cap to the
unused conduit opening when wiring the D4BL.
Cable Connection Example
1.
Connect the wires to the terminals in the order shown below for
wiring efficiency.
Tighten each wired terminal clockwise to a torque of 0.59 to
0.78 N·m.
Twist the wire two or three times and make sure that no bare wire
exists outside the terminal when tightening the terminal.
2.
The insulation sheath of the seven-conductor cable must come
into contact with the wall of the conduit mouth, side A or side B.
Maintenance and Repairs
Contact your OMRON representative for any repair or maintenance
work on the D4BL. The D4BL must not be maintained or repaired by
any unauthorized party.
Others
Do not touch the solenoid because the solenoid radiates heat while
power is being supplied.
Terminal no. Lp (mm) Lv (mm) a (mm)
E130±2 80±2
8±1
E235±2 75±2
31 45±2 60±2
12 55±2 50±2
23 (21) 65±2 45±2
24 (22) 70±2 35±2
90±2 50±2
Insulation sheath edge
