Pepperl+FuchsProximity SensorsInductive Sensors
Inductive sensor NRB20-U1-A2
Inductive sensor

Part number: NRB20-U1-A2

  • Sensor head bidirectional and rotatable
  • 20 mm flush
  • Reduction factor = 1
  • Magnetic field resistant
  • 4 LEDs indicator for 360° visibility
    • Datasheet NRB20-U1-A2

    Specification

    General specifications
    Switching functioncomplementary
    Output typePNP
    Rated operating distance20 mm
    Installationflush
    Output polarityDC
    Assured operating distance0 ... 16.2 mm
    Actual operating distance18 ... 22 mm typ. 20 mm
    Reduction factor rAl 1
    Reduction factor rCu 1
    Reduction factor r304 1
    Reduction factor rSt37 1
    Output type4-wire
    Nominal ratings
    Operating voltage10 ... 30 V DC
    Switching frequency0 ... 440 Hz
    Hysteresis3 ... 15 %
    Reverse polarity protectionreverse polarity protected
    Short-circuit protectionpulsing
    Voltage drop≤ 2.5 V
    Operating current0 ... 200 mA
    Off-state current0 ... 0.5 mA typ. 0.01 mA
    No-load supply current≤ 25 mA
    Time delay before availability15 ms
    Constant magnetic field200 mT
    Alternating magnetic field200 mT
    Operating voltage indicatorLED, green
    Switching state indicatorLED, yellow
    Functional safety related parameters
    MTTFd1123 a
    Mission Time (TM)20 a
    Diagnostic Coverage (DC)0 %
    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
    Protection classII
    Rated insulation voltage60 V
    Rated impulse withstand voltage800 V
    UL approvalcULus Listed, General Purpose
    CCC approvalCCC approval / marking not required for products rated ≤36 V
    Ambient conditions
    Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
    Storage temperature-40 ... 85 °C (-40 ... 185 °F)
    Mechanical specifications
    Connection typescrew terminals
    Information for connectionA maximum of two conductors with the same core cross section may be mounted on one terminal connection!
    tightening torque 1.2 Nm + 10 %
    Core cross sectionup to 2.5 mm2
    Minimum core cross-sectionwithout wire end ferrule 0.5 mm2 , with connector sleeves 0.34 mm2
    Maximum core cross-sectionwithout wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2
    Housing materialPA/metal with epoxy powder coating
    Sensing facePA 6 Grivory GVN-35H
    Housing baseplastic
    Degree of protectionIP67
    Mass225 g
    NoteTightening torque: 1.8 Nm (housing)