Serviceline Industrial Sensors
Phone: 330-486-0001
Fax: 330-405-4710
Serviceline Explosion Protection
Phone: 330-486-0002
Fax: 330-963-5827

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This product has been replaced.Go to replacement product NBN40-U4L-UU
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Inductive sensor NJ40+U4+W

NJ40+U4+W
  • 40 mm non-flush
  • 2-wire AC
  • Limit switch style housing
  • Metal base 1/2" NPT

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NJ40+U4+W

General specifications
Switching functionNormally open/closed (NO/NC)
Output typeTwo-wire
Rated operating distance40 mm
Installationnon-flush
Output polarityAC
Assured operating distance0 ... 32.4 mm
Actual operating distance36 ... 44 mm typ. 40 mm
Reduction factor rAl 0.5
Reduction factor rCu 0.45
Reduction factor r304 0.8
Nominal ratings
Operating voltage AC20 ... 253 V 1)
Switching frequency0 ... 20 Hz
Hysteresis1 ... 10 typ. 5 %
Voltage drop≤ 5 V
Momentary current
(20 ms, 0.1 Hz)
0 ... 3000 mA
Operating current8 ... 500 mA
Off-state current0.5 ... 1.95 mA typ. 1.2 mA
Off-state current UB 24 V, switching element off0.5 ... 1.7 mA typ. 1.2 µA
Operating voltage indicatorLED, green
Switching state indicatorLED, yellow
Functional safety related parameters
MTTFd760 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Approvals and certificates
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
CCC approvalCertified 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
Connection typescrew terminals
Information for connectionA maximum of two conductors with the same core cross section may be mounted on one terminal connection!
tightening torque 1.2 Nm + 10 %
Core cross-sectionup to 2.5 mm2
Minimum core cross-sectionwithout wire end ferrule 0.5 mm2 , with connector sleeves 0.34 mm2
Maximum core cross-sectionwithout wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2
Housing materialPBT/metal
Sensing facePBT
Degree of protectionIP68
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.

Documents: NJ40+U4+W

Technical informationLanguageFile TypeFile Size
Installation conditionsENGPDF210 KB
EinbaubedingungenGERPDF210 KB

Approvals+Certificates: NJ40+U4+W

CertificatesCertificate No.File TypeFile Size
Canada USA CSA Ordinary Location1007121PDF99 KB
China CQC CCC2010010305385287PDF15579 KB
US CA UL General PurposeE87056LINK---

Associated Products: NJ40+U4+W

Accessories
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