Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NJ4-12GM50-WS-20M

NJ4-12GM50-WS-20M
  • 20 m cable length

Please 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.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NJ4-12GM50-WS-20M

General specifications
Switching functionNormally open (NO)
Output typeTwo-wire
Rated operating distance4 mm
Installationnon-flush
Output polarityAC
Assured operating distance0 ... 3.24 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.4
Reduction factor r304 0.7
Nominal ratings
Operating voltage20 ... 253 V
Switching frequency0 ... 20 Hz
Voltage droptyp. 4 V at 15 ... 200 mA
typ. 6.5 V at 5 mA
Momentary current
(20 ms, 0.1 Hz)
0 ... 1200 mA
Operating current5 ... 200 mA
Off-state currenttyp. 0.7 mA
Switching state indicatorLED, yellow
Approvals and certificates
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Connection typecable PVC , 20 m
Core cross-section0.34 mm2
Housing materialStainless steel 1.4305 / AISI 303
Sensing facePBT
Housing diameter12 mm
Degree of protectionIP67
Note1) In the temperature range below 0 °C, permissible operating voltage Ub 80...253 V
Safety fuse ≤ 0.8 A (quick-blow) according to IEC 60127-2 Sheet 1
Recommendation: after a short circuit, check that the device is functioning correctly.

Documents: NJ4-12GM50-WS-20M

Technical informationLanguageFile TypeFile Size
Installation conditionsENGPDF1053 KB
EinbaubedingungenGERPDF1054 KB

Approvals+Certificates: NJ4-12GM50-WS-20M

CertificatesCertificate No.File TypeFile Size
Canada USA CSA Ordinary Location1007121PDF99 KB
Canada USA UL Ordinary Location20170306-E87056PDF407 KB

Associated Products: NJ4-12GM50-WS-20M

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