NBB20-U1K-N0

General specifications Switching element function NAMUR, NC Rated operating distance 20 mm Installation flush Output polarity NAMUR Assured operating distance 0 ... 16.2 mm Reduction factor r Al 0.37 Reduction factor r Cu 0.35 Reduction factor r 304 0.79 Nominal ratings Nominal voltage 8.2 V (R i approx. 1 kOm) Switching frequency 0 ... 250 Hz Hysteresis 1 ... 15 typ. 5 % Reverse polarity protection reverse polarity protected Short-circuit protection yes Current consumption Measuring plate not detected greater or equal 3 mA Measuring plate detected less than or equal to 1 mA Switching state indicator LED, yellow Compliance with standards and directives Standard conformity NAMUR EN 60947-5-6:2000 IEC 60947-5-6:1999 Electromagnetic compatibility NE 21:2007 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 ... 100 °C (-13 ... 212 °F) Storage temperature -40 ... 100 °C (-40 ... 212 °F) Mechanical specifications Connection type screw terminals Core cross-section less than or equal to 2.5 mm 2 Housing material PA Sensing face PA Degree of protection IP66 / IP68 / IP69K Mass 225 g Note Tightening torque: 1.8 Nm (housing) Tightening torque: 1.0 Nm (Screw terminal) General information Use in the hazardous area see instruction manuals Category 1G- 2G- 3G