General specifications Switching element function AC NO/NC Rated operating distance 40 mm Installation flush Output polarity AC Assured operating distance 0 ... 32.4 mm Reduction factor r Al 0.25 Reduction factor r Cu 0.23 Reduction factor r 304 0.85 Nominal ratings Operating voltage 20 ... 253 V Switching frequency 0 ... 20 Hz Hysteresis typ. 3 % Short-circuit protection no 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 CCC approval Certified by China Compulsory Certification (CCC) Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Connection type screw terminals Core cross-section up to 2.5 mm 2 Housing material PBT 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.