NBN3-F31-U8-V18

General specifications Switching element function AC/DC binary NO Rated operating distance 3 mm Installation flush mountable Output polarity AC/DC Assured operating distance 0 ... 2.43 mm Reduction factor r Al 0.45 Reduction factor r Cu 0.38 Reduction factor r 304 1 Reduction factor r St37 1.04 Nominal ratings Operating voltage 20 ... 253 V AC/DC Switching frequency 25 Hz Hysteresis typ. 3 % Reverse polarity protection yes Short-circuit protection yes Voltage drop less than or equal to 8 V Operating current 4 ... 400 mA Off-state current less than or equal to 1.7 mA Operating voltage indicator LED, green Switching state indicator LED, yellow Functional safety related parameters MTTF d 529 a Mission Time (T M ) 20 a Diagnostic Coverage (DC) 0 % Approvals and certificates Protection class II Rated insulation voltage 253 V Design-impulse-voltage withstand 4 kV UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Connection type Connector M18 x 1 , 4-pin Housing material PBT Sensing face PBT Degree of protection IP67