Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NCN3-F31K-N4-S

NCN3-F31K-N4-S
  • Direct mounting on standard actuators
  • Fixed setting
  • Screw terminals
  • Usable up to SIL 2 acc. to IEC 61508
  • ATEX & IECEX certifications


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  NCN3-F31K-N4-S

General specifications
Switching function2 x normally closed (NC)
Output typeNAMUR
Rated operating distance3 mm
Installationflush mountable
Assured operating distance0 ... 2.4 mm
Actual operating distance2.7 ... 3.3 mm typ.
Actuating elementStainless steel 1.4305 / AISI 303
8.5 mm x 8.5 mm x 0.5 mm
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.3
Reduction factor rBrass 0.6
Output type2-wire
Nominal ratings
Nominal voltage8.2 V (Ri approx. 1 kΩ)
Switching frequency0 ... 3 kHz
Hysteresistyp. 5 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionyes
Suitable for 2:1 technologyyes , Reverse polarity protection diode not required
Current consumption
Measuring plate not detected≥ 3 mA
Measuring plate detected≤ 1 mA
Time delay before availability≤ 1.1 ms
Switching state indicatorLED, yellow
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
MTTFd1470 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
Electromagnetic compatibilityNE 21:2007
StandardsEN IEC 60947-5-2
Approvals and certificates
IECEx approval
Equipment protection level GaIECEx TUN 17.0021X
Equipment protection level GbIECEx TUN 17.0021X
Equipment protection level DaIECEx TUN 17.0021X
Equipment protection level MbIECEx TUN 17.0021X
ATEX approval
Equipment protection level GaTÜV 99 ATEX 1479 X
Equipment protection level GbTÜV 99 ATEX 1479 X
Equipment protection level DaTÜV 99 ATEX 1479 X
UL approvalcULus Listed, General Purpose
Ordinary LocationE87056
Hazardous LocationE501628
Control drawing116-0456
CCC approval
Hazardous Location2020322315002262
NEPSI approval
NEPSI certificateGYJ19.1410X
Ambient conditions
Ambient temperature-25 ... 100 °C (-13 ... 212 °F)
Storage temperature-40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Connection (system side)Screw terminals, tightening torque min. 0.5 Nm
Stripped length 7 mm
usable thread length 11.5 mm
screw-in depth max. 11.5 mm
Core cross section (system side)rigid: 0.14 ... 2.5 mm2
flexible: 0.14 ... 1.5 mm2
flexible with core-end sleeve: 0.25 ... 1.5 mm2
Housing materialPBT
Sensing facePBT
Degree of protectionIP67
Tightening torque, housing screws1 Nm
Tightening torque, cable glandM20 x 1.5 ; max. 7 Nm
Dimensions
Height35.5 mm
Width65 mm
Length77.5 mm
General information
Use in the hazardous areasee instruction manuals

Classifications

SystemClasscode
ECLASS 13.027273901
ECLASS 12.027273901
ECLASS 11.027220501
ECLASS 10.0.127220501
ECLASS 9.027220501
ECLASS 8.027220501
ECLASS 5.127220501
ETIM 9.0EC002714
ETIM 8.0EC002714
ETIM 7.0EC002714
ETIM 6.0EC002714
ETIM 5.0EC002714
UNSPSC 12.139121550

Details: NCN3-F31K-N4-S

Product Documentation: NCN3-F31K-N4-S

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF188 KB

Design / Simulation: NCN3-F31K-N4-S

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---
CAD-files 3-D / CAD-Dateien 3-DALLSTP975 KB
CAE
CAE EPLAN Data Portal / CAE EPLAN Data PortalALLLINK---
CAE EPLAN macro EDZ / CAE EPLAN Makro EDZALLEDZ224 KB

Approvals: NCN3-F31K-N4-S

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
BR Brasil TUV Rheinland Ex ia Ex ibTÜV 13.1137 XALLPDF1383 KB
Canada USA UL Hazardous LocationE501628:1:6ALLPDF474 KB
Canada USA UL Ordinary LocationUL-US-2140224-1 / UL-CA-2133715-1ALLPDF491 KB
China SITIIAS CCC Ex Certificate2020322315002262ALLPDF2855 KB
EU TUV Nord ATEX ia 2G, 1G, 1D s. certificateTÜV 99 ATEX 1479 XALLPDF662 KB
United Kingdom CML UKEX Category I M2 UKEX Category II 2 G UKEX Category II 1 D UKEX Category II 1 GCML 21UKEX21289XALLPDF298 KB
Worldwide Pepperl+Fuchs Functional Safety CertificatePF12CERT2382GALLPDF1492 KB
Worldwide TUV Nord IECEx iaIECEx TUN 17.0021XALLLINK---
Control Drawings
Control drawing UL / Control drawing UL   ALLPDF378 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-5075AALLPDF1258 KB
UK Declaration of Conformity (P+F)TDOC-6561AENGENGPDF1243 KB

Associated Products: NCN3-F31K-N4-S

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