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  6. NCN3-F31K-N4

NCN3-F31K-N4 Inductive sensor

Key Benefits at a Glance

  • Direct mounting on standard actuators
  • Fixed setting
  • ATEX & IECEX certifications
Please contact us for exact delivery estimation.
Preferred Type
Product photo: Inductive sensor NCN3-F31K-N4
Dimensions: Inductive sensor NCN3-F31K-N4
Product photo: Inductive sensor NCN3-F31K-N4
Dimensions: Inductive sensor NCN3-F31K-N4
Approval
Product Compliance: USA - cULus
Product Compliance: Europe – CE
Product Compliance: United Kingdom – UKCA
Approval
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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DatasheetClassificationProduct DocumentationDesign / SimulationApprovalsRelated Products

Technical data of NCN3-F31K-N4

Switching function2 x normally closed (NC)
Output typeNAMUR
Rated operating distancesn3 mm
Installationflush mountable
Assured operating distancesa0 ... 2.4 mm
Actual operating distancesr2.7 ... 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 voltageUo8.2 V (Ri approx. 1 kΩ)
Switching frequencyf0 ... 3 kHz
HysteresisHtyp. 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 availabilitytv≤ 1.1 ms
Switching state indicatorLED, yellow
Safety Integrity Level (SIL)SIL 2
MTTFd1470 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Standard conformity
NAMUREN 60947-5-6:2000
IEC 60947-5-6:1999
Electromagnetic compatibilityNE 21:2007
StandardsEN IEC 60947-5-2
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 temperature-25 ... 100 °C (-13 ... 212 °F)
Storage temperature-40 ... 100 °C (-40 ... 212 °F)
Connection (system side)Cage tension spring terminals
Stripped length 7 mm
M20 x 1.5 cable gland
usable thread length 11.5 mm
screw-in depth max. 11.5 mm
Core cross section (system side)Flexible: 0.2 ... 1.5 mm2
rigid: 0.2 ... 2.5 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
Use in the hazardous areasee instruction manuals
General Notes
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