General specifications Switching element function NPN NO/NC Rated operating distance 2 mm Installation flush Output polarity DC Assured operating distance 0 ... 1.62 mm Reduction factor r Al 0.4 Reduction factor r Cu 0.3 Reduction factor r 304 0.7 Nominal ratings Operating voltage 4.75 ... 30 V DC Switching frequency 0 ... 1000 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 ... 100 mA Off-state current 0 ... 0.5 mA typ. 0.1 mA at 25 °C No-load supply current less than or equal to 15 mA Switching state indicator LED, yellow Functional safety related parameters MTTF d 1680 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 cable PVC , 2 m Core cross-section 0.14 mm 2 Housing material Ryton R4 Sensing face Ryton R4 Degree of protection IP67