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Small photoelectric sensors
W12-2 Laser

WT12L-2B551
Illustration may differ
WT12L-2B551
1047958
Usually available within 3 weeks
Items included: BEF-KH-W12 (2)

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    • Features
      Sensor/ detection principlePhotoelectric proximity sensor, Background suppression
      Dimensions (W x H x D)15 mm x 49 mm x 41.5 mm
      Housing design (light emission)Rectangular
      Sensing range max.30 mm ... 200 mm 1)
      Focus100 mm
      Type of lightVisible red light
      Light sourceLaser 2)
      Light spot size (distance)Ø 0.2 mm (100 mm)
      Wave length650 nm
      Laser class1 3)
      AdjustmentPotentiometer
      Special applicationsDetecting small objects, Detection of objects moving at high speeds
      • 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.
    • Mechanics/electronics
      Supply voltage10 V DC ... 30 V DC 1)
      Ripple< 5 Vpp 2)
      Current consumption55 mA 3)
      Switching output

      PNP 4)

      NPN 5)

      Switching mode

      Light switching 4)

      Dark switching 5)

      Switching mode selectorSelectable via L/D control cable
      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≤ 500 µs 6)
      Switching frequency1,000 Hz 7)
      Connection typeMale connector M12, 5-pin
      Circuit protection

      A 8)

      C 9)

      D 10)

      Protection classIII
      Weight130 g
      Housing materialMetal
      Optics materialPlastic, PMMA
      Enclosure rating

      IP67

      IP69K

      Items supplied2 x clamps BEF-KH-W12, incl. screws
      Ambient operating temperature–10 °C ... +50 °C
      Ambient temperature, storage–25 °C ... +75 °C
      UL File No.NRKH.E181493 & NRKH7.E181493
      • 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.
    • 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
      ETIM 5.0EC002719
      ETIM 6.0EC002719
      ETIM 7.0EC002719
      UNSPSC 16.090139121528
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    Technical drawings

    WT12L-2B551
    Connection diagram Cd-145
    WT12L-2B551
    Characteristic curve WT12L-2
    WT12L-2B551
    Light spot size WT12L-2
    WT12L-2B551
    Sensing range diagram WT12L-2
    WT12L-2B551
    Adjustments WT12L-2
    WT12L-2B551
    Dimensional drawing WT12L-2
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