General specifications Switching element function PNP NO Rated operating distance 1.5 mm Installation flush Output polarity DC Nominal ratings Operating voltage 10 ... 30 V DC Switching frequency 0 ... 2000 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 No-load supply current less than or equal to 10 mA Limit data Operating pressure 500 bar (7252 psi) Functional safety related parameters MTTF d 728 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 ... 80 °C (-13 ... 176 °F) Mechanical specifications Connection type Connector M12 x 1 , 4-pin Housing material Stainless steel 1.4305 / AISI 303 Sensing face Ceramic Housing diameter 12 mm Degree of protection IP68