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D4F

Small Safety Limit Switch

D4F

Smallest Class of Safety Limit Switches in the World

Characteristics

Degree of protection *1 IP67 (EN60947-5-1)
Durability *2 Mechanical 10,000,000 times min.
Electrical 1,000,000 times min. (4 mA resistive load at 24 VDC, 4 circuits)
150,000 times min. (1 A resistive load at 125 VAC, 2 circuits/4 mA resistive load at 24
VDC, 2 circuits) *3
Operating speed 1 mm/s to 0.5 m/s
Operating frequency Mechanical 120 operations/minute
Electrical 30 operations/minute
Contact resistance *5 300 mΩ max. (with 1 m cable), 500 mΩ max. (with 3 m cable), 700 m Ωmax. (with 5 m
cable)
Minimum applicable load *4 4 mA resistive load at 24 VDC, 4 circuits (N-level reference value)
Rated insulation voltage (Ui) 250 V
Rated frequency 50/60 Hz
Protection against electric shock Class I (with a ground wire)
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 ground
4 kV
Insulation resistance 100 MΩ min. (at 500 VDC) between terminals of the same polarities, between terminals
of different polarities, between current-carrying metal parts and grounds, and between
each terminal and non-current carrying metal parts
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) 2.5 A (EN60947-5-1)
Ambient operating temperature - 30 to 70°C (with no icing)
Ambient operating humidity 95% max.
Cable UL2464 No. 22 AWG, finishing O.D.: 8.3 mm
Weight Approx. 190 g (D4F-102-1R, with 1 m cable)
Approx. 220 g (D4F-120-1R, with 1 m cable)

Note: 1. The above values are initial values.
           2. Once the contact is opened or closed with an ordinary load, it cannot be used for a load smaller than that. The
               contact surface may be rough, which impairs the reliability of contacting.
*1. The degree of protection shown above is based on the test method specified in EN60947-5-1. Be sure to confirm in
       advance the sealing performance under the actual operating environment and conditions.
*2. Durability values are calculated at an operating temperature of 5 to 35°C, and an operating humidity of 40% to 70%.
       Contact your OMRON sales representative for more detailed information on other operating environments.
*3. Do not apply 1 A at 125 VAC to more than two circuits.
*4. The value will vary depending on factors such as the switching frequency, the ambient environment, and the reliability
       level.
       Be sure to confirm correct operation with the actual load before application.
*5. The contact resistance was measured with 0.1 A at 5 to 8 VDC with a fall-of-potential method.