Pepperl+FuchsProximity SensorsInductive Sensors
Inductive sensor NCN3-F31K-N4-K

Part number: NCN3-F31K-N4-K

  • Direct mounting on standard actuators
  • Fixed setting
  • EC-Type Examination Certificate TÜV99 ATEX 1479X
  • Usable up to SIL 2 acc. to IEC 61508
  • LEDs for switching state of sensor and solenoid valve
  • Valve LEDs disconnectable
  • ATEX & IECEX certifications
    • Datasheet NCN3-F31K-N4-K

    Specification

    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
    Valve status indicatorLED, yellow
    Functional safety related parameters
    Safety Integrity Level (SIL)SIL 2
    MTTFd1470 a
    Mission Time (TM)20 a
    Diagnostic Coverage (DC)0 %
    Valve circuit
    Voltagemax. 32 V DC
    Currentmax. 240 mA
    Short-circuit protectionno
    Reverse polarity protectionyes, with reversed output LED is out of function, therfore more power for solenoid valve
    Compliance with standards and directives
    Standard conformity
    NAMUREN 60947-5-6:2000
    IEC 60947-5-6:1999
    Electromagnetic compatibilityNE 21:2007
    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 TUN 17.0021X
    Equipment protection level GbIECEx 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 Gc (ic)PF13CERT2895 X
    UL approvalcULus Listed, General Purpose
    Ordinary LocationE87056
    Hazardous LocationE501628
    Control drawing116-0456
    CSA approvalcCSAus Listed, General Purpose
    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)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)1.5/2.5 mm2 flexible/rigid
    Connection (valve side)Cage tension spring terminals
    Core cross section (valve side)1.5/2.5 mm2 flexible/rigid
    Housing materialPBT
    Sensing facePBT
    Degree of protectionIP66 / IP67
    Tightening torque, fastening screws4 Nm ... 5 Nm
    Tightening torque, housing screws1 Nm
    Tightening torque, cable glandM20 x 1.5 ; max. 7 Nm
    M12 x 1.5 ; max. 1.5 Nm
    NoteLED switch-off
    General information
    NoteInductive sensors for position feedback of standard drives with terminal identification / terminal assignment in accordance with the former DIN 45140 T1 available on request. Ask your contact person at Pepperl+Fuchs.
    Use in the hazardous areasee instruction manuals
    ECLASS 13.027220501
    ECLASS 12.027220501
    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