Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NBN3-F31K-Z8-K

NBN3-F31K-Z8-K
  • Direct mounting on standard actuators
  • Fixed setting
  • LEDs for switching state of sensor and solenoid valve

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  NBN3-F31K-Z8-K

General specifications
Switching function2 x normally open (NO)
Output typeTwo-wire
Rated operating distance3 mm
Installationflush mountable
Output polarityDC
Assured operating distance0 ... 2.43 mm
Actual operating distance2.7 ... 3.3 mm typ. 3 mm
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.1
Output type4-wire
Nominal ratings
Operating voltage6 ... 60 V DC
Switching frequency0 ... 500 Hz
Hysteresistyp. 5 %
Reverse polarity protectionreverse polarity tolerant
Short-circuit protectionpulsing
Voltage drop≤ 5.5 V
Operating current4 ... 100 mA
Lowest operating current4 mA
Off-state current0.5 ... 0.9 mA typ. 0.65 mA
Time delay before availability≤ 40 ms
Switching state indicatorLED, yellow
Valve status indicatorLED, yellow
Limit data
Tightening torque, fastening screws0.4 Nm
Functional safety related parameters
MTTFd570 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
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
UL approvalcULus Listed, General Purpose, Class 2 Power Source
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
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
Mass180 g
Tightening torque, housing screws1 Nm
Tightening torque, cable glandM20 x 1.5 ; max. 7 Nm
M12 x 1.5 ; max. 1.5 Nm

Approvals+Certificates: NBN3-F31K-Z8-K

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-3089APDF169 KB
Certificates
Canada USA UL Ordinary Location20170306-E87056PDF407 KB
China CQC CCC SDOC2020970305000266PDF2263 KB
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