General specifications Switching element function AC NC Slot width 15 mm Depth of immersion (lateral) 18.5 ... 20.5 mm Output polarity AC Nominal ratings Operating voltage 20 ... 253 V AC Switching frequency 0 ... 25 Hz Hysteresis typ. 5% Voltage drop Typ. 4 V at 40 ... 500 mA load current Typ. 5 V at 15 ... 40 mA load current Typ. 7 V at 5 ... 15 mA load current Momentary current (20 ms, 0.1 Hz) max. 4000 mA Operating current 5 ... 500 mA Off-state current less than or equal to 2 mA Approvals and certificates UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose CCC approval Certified by China Compulsory Certification (CCC) Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Connection type cable PVC , 2 m Core cross-section 0.75 mm 2 Housing material PBT Degree of protection IP67 Note 1) In the temperature range below 0 °C, permissible operating voltage U b 80...253 V Safety fuse less than or equal to 2 A (quick-blow) according to IEC 60127-2 Sheet 1 Recommendation: after a short circuit, check that the device is functioning correctly.