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Safety-door Switch


Multi-contact, Labor-saving, Environment-friendly, Next-generation Safety-door Switch

Standards and EC Directives

Conforms to the following EC Directives:

• Machinery Directive
• Low Voltage Directive
• EN50047
• EN60204-1
• EN ISO 14119
• GS-ET-15

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) GB14048.5 2003010305077330
KOSHA *2 EN60947-5-1 Consult your OMRON representative for details.

*1. Certification for CSA C22.2 No. 14 is authorized by the UL mark.
*2. Only certain models have been certified.

Certified Standard Ratings

TÜV (EN60947-5-1), CCC (GB14048.5)

Utilization category AC-15 DC-13
Rated operating current (Ie) 3 A 0.27 A
Rated operating voltage (Ue) 240 V 250 V

Note: Use a 10 A fuse type gI or gG that conforms to IEC60269 as a short-circuit protection device. This fuse is not built
           into the Switch.

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


Rated voltage Carry current Current (A) Volt-amperes (VA)
Make Break Make Break
120 VAC 10 A 60 6 7,200 720
240 VAC 30 3


Rated voltage Carry current Current (A) Volt-amperes (VA)
Make Break Make Break
125 VDC 2.5 A 0.55 0.55 69 69
250 VDC 0.27 0.27


Degree of protection *1 IP67 (EN60947-5-1)
Durability *2 Mechanical Standard type: 1,000,000 operations min.
High pull-force type: 100,000 operations min.
Electrical Standard type:
500,000 operations min. (3 A resistive load at 250 VAC) *3
300,000 operations min. (10 A resistive load at 250 VAC)
High pull-force type:
100,000 operations min. (10 A resistive load at 250 VAC)
Operating speed 0.05 to 0.5 m/s
Direct opening force *4 Standard type: 60 N min.
High pull-force type: 80 N min.
Direct opening travel *4 10 mm min.
Contact resistance 25 mΩ max.
Minimum applicable load *5 1 mA resistive load at 5 VDC (N-level reference value)
Rated insulation voltage (Ui) 300 V
Rated frequency 50/60 Hz
Protection against electric shock Class II (double insulation)
Pollution degree (operating environment) 3 (EN60947-5-1)
Impulse withstand
Between terminals of same
2.5 kV
Between terminals of different
4 kV
Between each terminal and
non-current carrying metallic
6 kV
Insulation resistance 100 MΩ min.
Contact gap 2 × 2 mm min.
Vibration resistance Malfunction 10 to 55 Hz, 0.75 mm single amplitude
Shock resistance Destruction 1,000 m/s2 min.
Malfunction 300 m/s2 min.
Conditional short-circuit current 100 A (EN60947-5-1)
Conventional free air thermal current (Ith) 10 A (EN60947-5-1)
Ambient operating temperature -30 to 70°C (with no icing)
Ambient operating humidity 95% max.
Weight Approx. 96 g (D4NS-1CF)

Note: 1. The above values are initial values.
           2. The Switch contacts can be used with either standard loads or microloads. Once the contacts have been used to
                switch a load, however, they cannot be used to switch smaller loads. The contact surfaces will become rough
                once they have been used and contact reliability for smaller loads may be reduced.
*1. The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing
       properties are sufficient for the operating conditions and environment beforehand. Although the switch box is
       protected from dust or water penetration, do not use the D4NS in places where foreign material may enter through the
       key hole on the head, otherwise Switch damage or malfunctioning may occur.
*2. The durability is for an ambient temperature of 5 to 35°C and an ambient humidity of 40% to 70%. For more details,
       consult your OMRON representative.
*3. Do not pass the 3 A, 250 VAC load through more than 2 circuits.
*4. These figures are minimum requirements for safe operation.
*5. This value will vary with the switching frequency, environment, and reliability level. Confirm that correct operation is
       possible with the actual load beforehand.