NJ20+U1+W4

General specifications Switching element function AC NO/NC Rated operating distance 20 mm Installation non-flush Output polarity AC Assured operating distance 0 ... 16.2 mm Reduction factor r Al 0.4 Reduction factor r Cu 0.3 Reduction factor r 304 0.85 Nominal ratings Operating voltage 20 ... 253 V Switching frequency 0 ... 20 Hz Hysteresis 1 ... 10 typ. 5 % Voltage drop less than or equal to 5 V Momentary current (20 ms, 0.1 Hz) max. 4 A Operating current 10 ... 500 mA Off-state current 0 ... 2.5 mA typ. Switching state indicator LED green: NC LED red: NO Approvals and certificates CCC approval Certified by China Compulsory Certification (CCC) Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Storage temperature -25 ... 85 °C (-13 ... 185 °F) Mechanical specifications Core cross-section up to 2.5 mm 2 Housing material PBT Sensing face PBT Degree of protection IP68 Note 1) In the temperature range below 0 °C, permissible operating voltage U b 80...253 V Safety fuse less than or equal to 2 A (quick-blow) according to IEC 60127-2 Sheet 1 Recommendation: after a short circuit, check that the device is functioning correctly.