Serviceline Industrial Sensors
Serviceline Explosion Protection
Not available for purchase
Not available for purchase

Inductive sensor NJ20+U4+W

NJ20+U4+W
  • 20 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 or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NJ20+U4+W

General specifications
Switching functionNormally open/closed (NO/NC)
Output typeTwo-wire
Rated operating distance20 mm
Installationnon-flush
Output polarityAC
Assured operating distance0 ... 16.2 mm
Actual operating distance18 ... 22 mm typ. 20 mm
Reduction factor rAl 0.35
Reduction factor rCu 0.35
Reduction factor r304 0.8
Output type2-wire
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
MTTFd810 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Compliance with standards and directives
Standard conformity
StandardsEN 60947-5-2:2007
IEC 60947-5-2:2007
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/base of metal
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 information
Supplementary informationConnection selectable as normally open or normally closed operation.
Only wire one output per device.

Classifications

SystemClasscode
ECLASS 13.027274001
ECLASS 12.027274001
ECLASS 11.027270101
ECLASS 10.0.127270101
ECLASS 9.027270101
ECLASS 8.027270101
ECLASS 5.127270101
ETIM 9.0EC002714
ETIM 8.0EC002714
ETIM 7.0EC002714
ETIM 6.0EC002714
ETIM 5.0EC002714
UNSPSC 12.139121550

Details: NJ20+U4+W

Product Documentation: NJ20+U4+W

Language Selection:
Product informationLanguageFile TypeFile Size
Installation conditionsENGPDF210 KB

Design / Simulation: NJ20+U4+W

Language Selection:
CADLanguageFile TypeFile Size
CAD 3-D / CAD 3-DALLSTP181 KB

Approvals: NJ20+U4+W

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Canada USA CSA Ordinary Location1007121ALLPDF198 KB
Canada USA UL Ordinary LocationUL-US-L87056-11-41301991-3 / UL-CA-L87056-31-41301991-3ALLPDF1806 KB
China CQC CCC2024010305676440ALLPDF1075 KB

Associated Products: NJ20+U4+W

Accessories
Modular mounting bracket fa

Our amplify article gives interesting insights about the development of the new, modern portfolio of inductive proximity sensors from Pepperl+Fuchs. Get the whole story here! 

 

 

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