General specifications Switching element function NPN NC Rated operating distance 40 mm Installation non-flush Output polarity DC Assured operating distance 0 ... 32.4 mm Reduction factor r Al 0.31 Reduction factor r Cu 0.3 Reduction factor r 304 0.74 Reduction factor r Brass 0.39 Nominal ratings Operating voltage 10 ... 30 V Switching frequency 0 ... 150 Hz Hysteresis typ. 5 % Reverse polarity protection reverse polarity protected Short-circuit protection pulsing Voltage drop less than or equal to 2 V Operating current 0 ... 200 mA Off-state current 0 ... 0.5 mA typ. 0.1 mA at 25 °C No-load supply current less than or equal to 20 mA Operating voltage indicator LED, green Switching state indicator LED, yellow Functional safety related parameters MTTF d 1460 a Mission Time (T M ) 20 a Diagnostic Coverage (DC) 0 % Approvals and certificates UL approval cULus 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 ... 85 °C (-13 ... 185 °F) Mechanical specifications Connection type Connector M12 x 1 , 4-pin Housing material PA/metal with epoxy powder coating Sensing face PA Degree of protection IP68 / IP69K Mass 225 g Note Tightening torque: 1.8 Nm (housing)