Guard Lock Safety-door Switch D4SL-N


•Wiring time is reduced with two types of wiring methods capable of one-touch attachment and removal.

• A wide variety of built-in switches can be used for various devices.

(4-, 5-, and 6-contact models are available)

• Key holding force of 1,300 N.

• It is possible to change the operation key insertion point without detaching the head.

• Drive solenoids directly from the Controller.


Slide Key D4SL-NSK10-LK[]


• Lockout key to prevent workers from becoming trapped inside the hazardous area.

• The vertical D4SL-N Guard Lock Safety-door Switch can be easily mounted on 40 × 40 mm aluminum frames.

• The plastic material makes the Slide Key suitable for lightweight doors.

Standards and EC Directives

Conforms to the following EC Directives:

• Machinery Directive
• Low Voltage Directive
• EMC Directive
• EN ISO 14119
• EN60947-5-1
• GS-ET-19

Certified Standards


Certification body Standard File No.
TÜV SÜD EN60947-5-1 (certified direct opening) Consult your OMRON representative for details.
UL *1 UL508, CSA C22.2 No.14 E76675
CQC (CCC) GB/T 14048.5 Consult your OMRON representative for details.
KOSHA *2 EN60947-5-1 Consult your OMRON representative for details.


*1. Certification has been obtained for UL CSA C22.2 No. 14.
*2. Only certain models have been certified.

Certified Standard Ratings

TÜV (EN60947-5-1) CCC (GB/T 14048.5)


Utilization category AC-15 DC-13
Rated operating current (Ie) 1.5 A *1
1 A *2
0.22 A
Rated operating voltage (Ue) 120 V 125 V


Note: Use a 4 A fuse that conforms to IEC60127 as a short-circuit protection device. This fuse is not included with the switch.
*1. 11-42, 21-52, 21-22
*2. Other terminals

UL/CSA (UL508, CSA C22.2 No.14)



Rated voltage Carry current Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC 2.5 A 15 1.5 1,800 180




Rated voltage Carry current Current (A) Volt-amperes (VA)
Make Break Make Break
125 VDC 1.0 A 0.22 0.22 28 28


Solenoid Coil Characteristics


Item 24 VDC
Rated operating voltage (100% ED) 24 VDC +10%, -15%
Current consumption * Power ON:
6-contact type Approx. 6.4 W at 0.26 A
4-contact/5-contact type Approx. 4.8 W at 0.2 A
Constant: Approx. 2.6 W (average) at 0.2 A (max.)
Insulation Class E (to 120°C)



* A starting current is applied to the solenoid for Approx. 10 seconds.
After this, the internal circuit switches to a constant current.
Note: For solenoid lock models, be sure to supply power to the solenoid after the door is closed (after the operation key
is inserted).
If the door is closed after power is supplied to the solenoid, locking the operation key may not be possible.
For details, refer to “Solenoid Lock Models” on catalog.




Item LED type
Rated voltage 24 VDC
Current consumption Approx.10 mA
Color (LED) Orange




Interlock type Type 2 (EN ISO 14119)
Coding level Low level coded (EN ISO 14119)
Degree of protection IP67 *1
TYPE 4X Indoor use only (UL, CSA)
Durability *2 Mechanical 1,000,000 operations min.
Electrical 150,000 operations min. (1 A resistance at 125 VAC) *3
Operating speed 0.05 to 1 m/s
Operating frequency 4- and 5-contact Model: 30 operations minute max.
6-contact Model: 5 operations minute max.
Direct opening force *4 60 N min. (EN60947-5-1)
Direct opening travel *4 15 mm min. (EN60947-5-1)
Holding force *5 1,300 N min.
Contact resistance 200 mΩ max.
Minimum applicable load *6 1 mA resistive load at 5 VDC (N-level reference value)
Rated insulation voltage (Ui) 150 V (EN60947-5-1)
Rated frequency 50/60 Hz
Protection against electric shock Class II (double insulation) 3125_sp_7_1
Pollution degree (operating environment) 3 (EN60947-5-1)
Between terminals of same polarity 1.5 kV
Between terminals of different polarity 1.5 kV
Between other terminals and
non-current carrying metallic parts
2.5 kV
Insulation resistance 100 Ω min. (at 500 VDC)
Malfunction 10 to 55 Hz, 0.35 mm single amplitude
Malfunction 80 m/s2 min.
Destruction 1,000 m/s2 min.
Conditional short-circuit current 100 A (EN60947-5-1)
Conventional free air thermal current (Ith) 2.5A (11-42, 21-52, 21-22)
1A (Others)
Ambient operating temperature -10 to 55°C (with no icing)
Ambient operations humidity 95% max.
Weight Head: Resin
Approx. 290 g (Connector model)
Approx. 330 g (Terminal block model)
Head: Metal
Approx. 370 g (Connector model)
Approx. 410 g (Terminal block model)