Small photoelectric sensors
W12-3

WTB12-3F2431
Illustration may differ
WTB12-3F2431
1041420
Items included: BEF-KH-W12 (2)

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    • Features
      Functional principlePhotoelectric proximity sensor
      Functional principle detailBackground suppression
      Sensing range max.20 mm ... 350 mm 1)
      Sensing range20 mm ... 350 mm
      Emitted beam
      Light sourceLED 2)
      Type of lightVisible red light
      Light spot size (distance)Ø 6 mm (200 mm)
      Key LED figures
      Wave length640 nm
      AdjustmentPotentiometer, 5 turns
      Items supplied2 x clamps BEF-KH-W12, incl. screws
      Off delay20 ms
      • 1) Object with 90% remission (based on standard white, DIN 5033).
      • 2) Average service life: 100,000 h at TU = +25 °C.
    • Safety-related parameters
      MTTFD490 years
      DCavg0 %
      TM (mission time)20 years
    • Electrical data
      Supply voltage UB10 V DC ... 30 V DC 1)
      Ripple< 5 Vpp 2)
      Current consumption60 mA 3)
      Protection classIII
      Digital output
      TypePNP
      Output current Imax.≤ 100 mA
      Response time≤ 330 µs 4)
      Switching frequency1,500 Hz 5)
      Time functionsOff delay
      Delay timeFix
      Switching modeLight/dark switching
      Output functionComplementary
      Circuit protection

      A 6)

      C 7)

      D 8)

      • 1) Limit values when operated in short-circuit protected network: max. 8 A.
      • 2) May not exceed or fall below Uv tolerances.
      • 3) Without load.
      • 4) Signal transit time with resistive load.
      • 5) With light/dark ratio 1:1.
      • 6) A = VS connections reverse-polarity protected.
      • 7) C = interference suppression.
      • 8) D = outputs overcurrent and short-circuit protected.
    • Mechanical data
      HousingRectangular
      Dimensions (W x H x D)15.6 mm x 48.5 mm x 42 mm
      ConnectionMale connector M12, 4-pin
      Material
      HousingMetal
      Front screenPlastic, PMMA
      Weight120 g
    • Ambient data
      Enclosure rating

      IP66

      IP67

      IP69K

      Ambient operating temperature–40 °C ... +60 °C
      Ambient temperature, storage–40 °C ... +75 °C
      UL File No.NRKH.E181493 & NRKH7.E181493
    • Classifications
      eCl@ss 5.027270904
      eCl@ss 5.1.427270904
      eCl@ss 6.027270904
      eCl@ss 6.227270904
      eCl@ss 7.027270904
      eCl@ss 8.027270904
      eCl@ss 8.127270904
      eCl@ss 9.027270904
      eCl@ss 10.027270904
      eCl@ss 11.027270904
      eCl@ss 12.027270903
      ETIM 5.0EC002719
      ETIM 6.0EC002719
      ETIM 7.0EC002719
      ETIM 8.0EC002719
      UNSPSC 16.090139121528
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    Technical drawings

    WTB12-3F2431
    Connection type
    WTB12-3F2431
    Connection diagram Cd-083
    WTB12-3F2431
    Characteristic curve WTB12-3, red light, 350 mm
    WTB12-3F2431
    Sensing range diagram WTB12-3, red light, 350 mm
    WTB12-3F2431
    Adjustments WTB12-3, WTF12-3, potentiometer
    WTB12-3F2431
    Dimensional drawing WTB12-3, potentiometer
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