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D4N-[]R

Pull-reset Safety Limit Switch

D4N-[]R

A Series of Pull-reset Models Now Available

Characteristics

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 1 to 500 mm/s (D4N-1A20R)
Operating frequency 30 operations/minute max.
Contact resistance 25 mΩ max.
Minimum applicable load *4 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
(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
Malfunction 300 m/s2
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. 92 g (D4N-1A20R)

Note: 1. The above values are initial values.
           2. Once a contact has been used to switch a standard load, it cannot be used for a load of a smaller capacity.
                 Doing so may result in roughening of the contact surface and contact reliability may be lost.
*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 D4N-[]R in places where foreign material such as dust, dirt,
       oil, water, or chemicals may penetrate 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. This value will vary with the switching frequency, environment, and reliability level. Confirm that correct operation is
       possible with the actual load beforehand.