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NJ4-12GM50-WS Inductive sensor

Key Benefits at a Glance

  • 4 mm non-flush
  • 2-wire AC
Product Compliance: USA - cCSAus
Approval
Product Compliance: USA - cULus
Product Compliance: Europe – CE
Product Compliance: United Kingdom – UKCA
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.

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Technical data of NJ4-12GM50-WS

Switching functionNormally open (NO)
Output typeTwo-wire
Rated operating distancesn4 mm
Installationnon-flush
Output polarityAC
Assured operating distancesa0 ... 3.24 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.4
Reduction factor r304 0.7
Output type2-wire
Operating voltageUB20 ... 253 V
Switching frequencyf0 ... 20 Hz
Reverse polarity protectionreverse polarity tolerant
Voltage dropUdtyp. 4 V at 15 ... 200 mA
typ. 6.5 V at 5 mA
Momentary current
(20 ms, 0.1 Hz)
0 ... 1200 mA
Operating currentIL5 ... 200 mA
Off-state currentIrtyp. 0.7 mA
Time delay before availabilitytv≤ 30 ms
Switching state indicatorLED, yellow
MTTFd1230 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Standard conformity
StandardsEN IEC 60947-5-2
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Connection typecable
Housing materialStainless steel 1.4305 / AISI 303
Sensing facePBT
Degree of protectionIP67
Cable
Wire end ferrulesyes
Cable diameter4.6 mm ± 0.2 mm
Bending radius> 10 x cable diameter
MaterialPVC
Colorgrey
Number of cores3
Core cross section0.34 mm2
LengthL2 m
Dimensions
Length50 mm
Diameter12 mm
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.
Scope of delivery2 self locking nuts in scope of delivery