Serviceline Industrial Sensors
Serviceline Explosion Protection

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This product has been replaced.Go to replacement product NCN3-F25-N4-5M
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Inductive sensor NCN3-F25-N4-5M

NCN3-F25-N4-5M
  • For installation in housing
  • Direct mounting on standard actuators
  • EC-Type Examination Certificate TÜV99 ATEX 1479X


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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NCN3-F25-N4-5M

General specifications
Switching function2 x normally closed (NC)
Output typeNAMUR
Rated operating distance3 mm
Installationflush mountable
Assured operating distance0 ... 2.43 mm
Actual operating distance2.7 ... 3.3 mm typ.
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.1
Output type2-wire
Nominal ratings
Nominal voltage8.2 V (Ri approx. 1 kΩ)
Switching frequency0 ... 1500 Hz
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
Switching state indicatorLED, yellow
Functional safety related parameters
MTTFd2114 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
Approvals and certificates
FM approval
Control drawing116-0165
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-25 ... 100 °C (-13 ... 212 °F)
Storage temperature-40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Connection typecable PVC , 5 m
Cable version4 x 0.75 mm2
Core cross-section0.75 mm2
Housing materialPBT
Sensing facePBT
Degree of protectionIP67
Cable
Bending radius> 10 x cable diameter
Mass423 g
Tightening torque, fastening screwsM5 x 25 : 2.7 Nm
NoteMounted on mechanical drive
General information
Use in the hazardous areasee instruction manuals
Category1G; 2G; 3G

Documents: NCN3-F25-N4-5M

Instruction manualsLanguageFile TypeFile Size
Instruction manualENGPDF56 KB
Manuel d'instructionsFRAPDF57 KB
BetriebsanleitungGERPDF58 KB
Manuale di istruzioniITAPDF53 KB
Manual de instruccionesSPAPDF56 KB

CAD+CAE: NCN3-F25-N4-5M

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS661 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP318 KB

Approvals+Certificates: NCN3-F25-N4-5M

CertificatesCertificate No.File TypeFile Size
Canada USA CSA Ordinary Location1007121PDF99 KB
Canada USA UL Ordinary Location20170306-E87056PDF407 KB
EU TUV Nord ATEX ia 2G, 1G, 1D s. certificateTÜV 99 ATEX 1479 XPDF4682 KB
Europe Pepperl+Fuchs Certificate ATEX Category 3PF13CERT2895XPDF1101 KB
Control drawings
Control Drawing FM / Control Drawing FM   PDF686 KB

Associated Products: NCN3-F25-N4-5M

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