General specifications Switching element function DC NO Rated operating distance 5 mm Installation flush Output polarity DC Assured operating distance 0 ... 4.05 mm Reduction factor r Al 0.37 Reduction factor r Cu 0.33 Reduction factor r 304 0.7 Nominal ratings Operating voltage 5 ... 60 V Switching frequency 0 ... 350 Hz Hysteresis 1 ... 15 typ. 5 % Reverse polarity protection reverse polarity tolerant Short-circuit protection pulsing Voltage drop less than or equal to 5 V Operating current 2 ... 100 mA Off-state current 0 ... 0.5 mA typ. Switching state indicator Multihole-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 Connector M12 x 1 , 4-pin Housing material Stainless steel 1.4305 / AISI 303 Sensing face PBT Housing diameter 18 mm Degree of protection IP67 General information Use in the hazardous area see instruction manuals Category 3G- 3D