General specifications Switching element function NPN NO Rated operating distance 25 mm Installation non-flush Output polarity DC Assured operating distance 0 ... 20.25 mm Reduction factor r Al 0.5 Reduction factor r Cu 0.4 Reduction factor r 304 0.8 Nominal ratings Operating voltage 10 ... 30 V Switching frequency 0 ... 200 Hz Hysteresis typ. 5% Reverse polarity protection reverse polarity protected Short-circuit protection pulsing Voltage drop less than or equal to 3 V Operating current 0 ... 200 mA Off-state current less than or equal to 10 mA No-load supply current less than or equal to 10 mA Switching state indicator Multihole-LED, yellow Functional safety related parameters MTTF d 1140 a Mission Time (T M ) 20 a Diagnostic Coverage (DC) 0 % Approvals and certificates UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose CCC approval CCC approval / marking not required for products rated less than or equal to 36 V Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Connection type Connector M12 x 1 , 4-pin Housing material brass, nickel-plated Sensing face PBT Housing diameter 30 mm Degree of protection IP67