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Archived Product Version

NJ20+U1+W4 Inductive sensor

Key Benefits at a Glance

  • Comfort series
Product Compliance: USA - cCSAus
Product Compliance: USA - cULus
Product Compliance: Europe – CE
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

EN
  • CS
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  • EN
  • ES
  • FR
  • IT
  • PL
  • PT
  • SV
  • ZH

Technical data of NJ20+U1+W4

Switching functionNormally open/closed (NO/NC)
Output typeTwo-wire
Rated operating distancesn20 mm
Installationnon-flush
Output polarityAC
Assured operating distancesa0 ... 16.2 mm
Actual operating distancesr18 ... 22 mm typ. 20 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.3
Reduction factor r304 0.85
Output type4-wire
Operating voltageUB20 ... 253 V
Switching frequencyf0 ... 20 Hz
HysteresisH1 ... 10 typ. 5 %
Voltage dropUd≤ 5 V
Momentary current
(20 ms, 0.1 Hz)
max. 4 A
Operating currentIL10 ... 500 mA
Off-state currentIr0 ... 2.5 mA typ.
Switching state indicatorLED green: NC
LED red: NO
Standard conformity
StandardsEN 60947-5-2:2007
IEC 60947-5-2:2007
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Core cross sectionup to 2.5 mm2
Housing materialPBT
Sensing facePBT
Degree of protectionIP68
Dimensions
Height40 mm
Width40 mm
Length118 mm
Note1) In the temperature range below 0 °C, permissible operating voltage Ub 80...253 V
Safety fuse ≤ 2 A (quick-blow) according to IEC 60127-2 Sheet 1
Recommendation: after a short circuit, check that the device is functioning correctly.
General Notes