General specifications Switching element function PNP NO Rated operating distance 8 mm Installation flush Output polarity DC Assured operating distance 0 ... 6.48 mm Reduction factor r Al 0.45 Reduction factor r Cu 0.4 Reduction factor r 304 0.7 Nominal ratings Operating voltage 10 ... 60 V Switching frequency 0 ... 400 Hz Hysteresis typ. 5 % Reverse polarity protection reverse polarity protected Short-circuit protection pulsing Voltage drop less than or equal to 2.5 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 10 mA Switching state indicator Multihole-LED, yellow Functional safety related parameters MTTF d 1630 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 Certified by China Compulsory Certification (CCC) e1 Type approval 2006/28/EG Ambient conditions Ambient temperature -40 ... 85 °C (-40 ... 185 °F) Mechanical specifications Connection type Connector M12 x 1 , 4-pin Housing material brass, nickel-plated Sensing face PBT Housing diameter 18 mm Degree of protection IP68 / IP69K