Small photoelectric sensors
W12-2 Laser

WT12L-2B550
1017904
Items included: BEF-KH-W12 (2)
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    • Features
      Device typePhotoelectric sensors
      Functional principlePhotoelectric proximity sensor
      Functional principle detailBackground suppression
      Sensing range max.30 mm ... 200 mm 1)
      Emitted beam
      Light sourceLaser 2)
      Type of lightVisible red light
      Light spot size (distance)Ø 0.2 mm (100 mm)
      Key laser figures
      Normative referenceEN 60825-1:2014, IEC 60825-1:2007
      Laser class2 3)
      Key LED figures
      Wave length650 nm
      AdjustmentPotentiometer
      Special applicationsDetecting small objects, Detection of objects moving at high speeds
      Items supplied2 x clamps BEF-KH-W12, incl. screws
      • 1) Object with 18% remission (based on standard white, DIN 5033).
      • 2) Average service life: 50,000 h at TU = +25 °C.
      • 3) Pulse length 4 µs, max. pulse power < 5,0 mW.
    • Safety-related parameters
      MTTFD316 years
      DCavg0 %
    • Electrical data
      Supply voltage UB10 V DC ... 30 V DC 1)
      Ripple< 5 Vpp 2)
      Current consumption55 mA 3)
      Protection classIII
      Digital output
      TypePNP 4)
      NPN 5)
      Signal voltage PNP HIGH/LOWUv - < 2 V, Uv / 0 V, <= 1.5 V
      Signal voltage NPN HIGH/LOWUv - < 2 V, Uv / 0 V, <= 1.5 V
      Output current Imax.≤ 100 mA
      Response time≤ 200 µs 6)
      Switching frequency2,500 Hz 7)
      Switching mode

      Light switching 4)

      Dark switching 5)

      Switching mode selectorSelectable via L/D control cable
      Circuit protection

      A 8)

      C 9)

      D 10)

      • 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) 0 V or not connected, light switching.
      • 5) Uv, dark switching.
      • 6) Signal transit time with resistive load.
      • 7) With light/dark ratio 1:1.
      • 8) A = VS connections reverse-polarity protected.
      • 9) C = interference suppression.
      • 10) D = outputs overcurrent and short-circuit protected.
    • Mechanical data
      HousingRectangular
      Dimensions (W x H x D)15 mm x 49 mm x 41.5 mm
      ConnectionMale connector M12, 5-pin
      Material
      HousingMetal
      Front screenPlastic, PMMA
      Weight130 g
    • Ambient data
      Enclosure rating

      IP67

      IP69K

      Ambient operating temperature–10 °C ... +50 °C
      Ambient temperature, storage–25 °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

    Technical drawings

    WT12L-2B550
    Connection type
    WT12L-2B550
    Connection diagram Cd-145
    WT12L-2B550
    Characteristic curve WT12L-2
    WT12L-2B550
    Light spot size WT12L-2
    WT12L-2B550
    Sensing range diagram WT12L-2
    WT12L-2B550
    Adjustments WT12L-2
    WT12L-2B550
    Dimensional drawing WT12L-2
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