Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NJ20+U1+N

NJ20+U1+N
  • 20 mm non-flush


NAMUR sensors must be operated with approved switch amplifiers. Please find suitable devices below:

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+U1+N

General specifications
Switching functionNormally closed (NC)
Output typeNAMUR
Rated operating distance20 mm
Installationnon-flush
Assured operating distance0 ... 16.2 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.3
Reduction factor r304 0.85
Output type2-wire
Nominal ratings
Nominal voltage8.2 V (Ri approx. 1 kΩ)
Switching frequency0 ... 150 Hz
Current consumption
Measuring plate not detected≥ 3 mA
Measuring plate detected≤ 1 mA
Functional safety related parameters
MTTFd9190 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Compliance with standards and directives
Standard conformity
NAMUREN 60947-5-6:2000
IEC 60947-5-6:1999
StandardsEN 60947-5-2:2007
EN 60947-5-2/A1:2012
IEC 60947-5-2:2007
IEC 60947-5-2 AMD 1:2012
Approvals and certificates
IECEx approval
Equipment protection level GaIECEx PTB 11.0021X
Equipment protection level GbIECEx PTB 11.0021X
Equipment protection level DaIECEx PTB 11.0021X
Equipment protection level MbIECEx PTB 11.0021X
ATEX approval
Equipment protection level GaPTB 00 ATEX 2032 X
Equipment protection level GbPTB 00 ATEX 2032 X
Equipment protection level DaPTB 00 ATEX 2032 X
EAC conformityTR CU 012/2011
FM approval
Control drawing116-0165
UL approvalcULus Listed, General Purpose
Ordinary LocationE87056
Hazardous LocationE501628
Control drawing116-0451
CSA approvalcCSAus Listed, General Purpose
CCC approval
Hazardous Location2020322315002302
NEPSI approval
NEPSI certificateGYJ16.1394X
Ambient conditions
Ambient temperature-25 ... 100 °C (-13 ... 212 °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 , stripped insulation length: 7 mm
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
Connection (system side)screw terminals , M20 x 1.5 cable gland , usable thread length 9.1 mm , screw-in depth max. 9.1 mm
Housing materialPBT
Sensing facePBT
Degree of protectionIP68
NoteTightening torque: 1.8 Nm (housing)
General information
Use in the hazardous areasee instruction manuals

Documents: NJ20+U1+N

Instruction manualsLanguageFile TypeFile Size
ИнструкцииBULPDF179 KB
Návod k poużitíCZEPDF169 KB
Instruktions manualDANPDF169 KB
Instruction manualENGPDF170 KB
KasutusjuhendESTPDF162 KB
KäyttöohjeFINPDF162 KB
Manuel d'instructionsFRAPDF172 KB
BetriebsanleitungGERPDF171 KB
Οδηγίες χρήσηςGREPDF180 KB
HandleidingHOLPDF170 KB
Instruction manual / BetriebsanleitungHRVPDF166 KB
Használati útmutatóHUNPDF174 KB
Manuale di istruzioniITAPDF171 KB
Lietošanas pamācībaLAVPDF167 KB
Instrukciju vadovasLITPDF171 KB
Instrukcja obsługiPOLPDF172 KB
Manual de instruçõesPORPDF172 KB
Manual de utilizareRONPDF173 KB
Návod na poużitieSLKPDF171 KB
Navodila za uporaboSLVPDF168 KB
Manual de instruccionesSPAPDF234 KB
ManualSWEPDF166 KB
Technical information
Installation conditionsENGPDF210 KB
EinbaubedingungenGERPDF210 KB

Approvals+Certificates: NJ20+U1+N

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-1737PDF41 KB
Certificates
Canada USA CSA Ordinary Location1007121PDF99 KB
Canada USA UL Hazardous LocationE501628:1:1PDF405 KB
Canada USA UL Ordinary Location20170306-E87056PDF407 KB
China NEPSIGYJ16.1394XPDF5199 KB
China SITIIAS CCC Ex Certificate2020322315002302 (PT. Pepperl and Fuchs Bintan)PDF2298 KB
EU PTB ATEX ia 2G, 1G, 1D s. certificatePTB 00 ATEX 2032 XPDF29293 KB
Russia NANIO "CCVE"TC RU C-DE.AA87.B.00394PDF3971 KB
Worldwide PTB IECEx iaIECEx PTB 11.0021XLINK---
Control drawings
Control Drawing FM / Control Drawing FM   PDF686 KB
Control drawing UL / Control drawing UL   PDF294 KB

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