General specifications Switching element function AC NO Rated operating distance 15 mm Installation non-flush Output polarity AC Assured operating distance 0 ... 12.15 mm Reduction factor r Al 0.35 Reduction factor r Cu 0.35 Reduction factor r 304 0.8 Nominal ratings Operating voltage 20 ... 253 V 1) Switching frequency 0 ... 20 Hz Hysteresis 1 ... 10 typ. 5 % Voltage drop less than or equal to 12 V Momentary current (20 ms, 0.1 Hz) 0 ... 3000 mA Operating current 8 ... 500 mA Off-state current 0.5 ... 1.95 mA typ. 1.2 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) Storage temperature -25 ... 85 °C (-13 ... 185 °F) Mechanical specifications Connection type Quick disconnect type BHMS3 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