NBB4-12GM30-E0

General specifications Switching element function NPN normally open contact Rated operating distance 4 mm Installation flush Output polarity DC Assured operating distance 0 ... 3.24 mm Actuating element mild steel, e. g. 1.0037, SR235JR (formerly St37-2) 12 mm x 12 mm x 1 mm Reduction factor r Al 0.5 Reduction factor r Cu 0.4 Reduction factor r 304 0.8 Reduction factor r Brass 0.6 Nominal ratings Operating voltage 10 ... 30 V Switching frequency 0 ... 500 Hz Hysteresis typ. 5% Reverse polarity protection yes Short-circuit protection yes Inductive overvoltage protection yes Surge suppression yes Voltage drop less than or equal to 2.5 V Operating current 0 ... 200 mA Off-state current 0.01 mA No-load supply current less than or equal to 7 mA Switching state indicator LED, yellow 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 ... 85 °C (-13 ... 185 °F) Storage temperature -40 ... 85 °C (-40 ... 185 °F) Mechanical specifications Connection type cable PUR , 2 m Core cross-section 0.25 mm 2 Housing material brass, nickel-plated Sensing face PBT Housing diameter 12 mm Degree of protection IP67 Mass 70 g