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NBN3-F31K-E8-K Inductive sensor

Key Benefits at a Glance

  • Direct mounting on standard actuators
  • Fixed setting
  • LED for power on
  • LEDs for switching state of sensor and solenoid valve
Product Compliance: United Kingdom – UKCA
Product Compliance: Europe – CE
Product Compliance: USA - cULus LISTED
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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Technical data of NBN3-F31K-E8-K

Switching function2 x normally open (NO)
Output typePNP
Rated operating distancesn3 mm
Installationflush mountable
Output polarityDC
Assured operating distancesa0 ... 2.43 mm
Actual operating distancesr2.7 ... 3.3 mm typ.
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.2
Output type4-wire
Operating voltageUB10 ... 30 V DC
Switching frequencyf0 ... 500 Hz
HysteresisHtyp. 5 %
Reverse polarity protectionall connections
Short-circuit protectionpulsing
Voltage dropUd≤ 3 V
Operating currentIL0 ... 100 mA
Off-state currentIr0 ... 0.5 mA typ. 0.1 µA
No-load supply currentI0≤ 25 mA
Operating voltage indicatorLED, green
Switching state indicatorLED, yellow
Valve status indicatorLED, yellow
MTTFd780 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
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
Standard conformity
StandardsEN IEC 60947-5-2
UL approvalcULus Listed, General Purpose
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Connection (system side)Cage tension spring terminals
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 protectionIP67
Tightening torque, fastening screws≤ 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
Dimensions
Height35.5 mm
Width65 mm
Length77.5 mm
General Notes