OMRON Safety Door Switches – D4NH

Specifications | Safety Door Switches – D4NH series

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 for CSA C22.2 No. 14 is authorized by the UL mark.

Certified Standard Ratings

TÜV (EN60947-5-1)

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)

A300

Q300

Characteristics

Interlock type		Type 1 (EN ISO 14119)
Coding level		Uncoded (EN ISO 14119)
Degree of protection *1		IP67 (EN60947-5-1)
Durability *2	Mechanical	1,000,000 operations min.
	Electrical	500,000 operations min. (3 A resistive load at 250 VAC) *3 300,000 operations min. (10 A resistive load at 250 VAC)
Operating speed		2 to 360°/s
Operating frequency		30 operations/minute max.
Direct opening force *4		1 N·m min.
Direct opening travel *4		18° 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 voltage (Uimp) (EN60947-5-1)	Between terminals of same polarity	2.5 kV
	Between terminals of different polarity	4 kV
	Between each terminal and non-current carrying metallic parts	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. 87 g (D4NH-1AAS) Approx. 97 g (D4NH-1ABC)

Note: 1. The above values are initial values.
2. 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 D4NH in places where foreign material such as dust, dirt,
oil, water, or chemicals may enter through the head. Otherwise, accelerated wear, 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. Be sure to provide this amount to ensure safety in 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.

Dimensions | Safety Door Switches – D4NH series

Shaft Type with 1 Conduit
D4NH-1[]AS D4NH-2[]AS
D4NH-4[]AS

Shaft Type with 2 Conduits
D4NH-6[]AS D4NH-8[]AS

Arm Lever Type with 1 Conduit
D4NH-1[]BC D4NH-2[]BC
D4NH-4[]BC

Arm Lever Type with 2 Conduits
D4NH-6[]BC D4NH-8[]BC

Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
2. Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts.
Check contact operation.

Features | Safety Door Switches – D4GS-N series

• Slim design with a width of only 17 mm (three-contact models).
• Reversible design allowing either front or rear mounting.
• Built-in Switches with two- or three-terminal contact construction are available.
• Operation Key with rubber mounting hole to absorb vibration and shock.
• IP67 degree of protection.

Properties | Safety Door Switches – D4GS-N series