General specifications Switching element function AC NO/NC Rated operating distance 50 mm Installation non-flush Output polarity AC Assured operating distance 0 ... 40.5 mm Reduction factor r Al 0.4 Reduction factor r Cu 0.3 Reduction factor r 304 0.85 Nominal ratings Operating voltage AC 20 ... 253 V Switching frequency 0 ... 20 Hz Hysteresis typ. 3 % Voltage drop less than or equal to 5 V typ. 4V Momentary current (20 ms, 0.1 Hz) max. 4000 mA Operating current 5 ... 500 mA Off-state current 0.3 ... 1 mA typ. 0.7 mA Operating voltage indicator LED, green Switching state indicator LED, yellow Approvals and certificates UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Connection type screw terminals Core cross-section max. 2.5 mm 2 Housing material PBT/metal Sensing face PBT Degree of protection IP68 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.