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Detailed information for: LF/U 2.1

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Data Sheet
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LF/U 2.1

General Information

  • Extended Product Type:
    LF/U 2.1
  • Product ID:
  • EAN:
  • Catalog Description:
    LF/U2.1 Light Sensor, FM
  • Long Description:
    The light sensor is used to measure the brightness level in rooms. When combined with the light controller LR/S x.16.1 (x = 2 or 4), DLR/S and LR/M1.6.2 the light sensor is used for constant light control.



  • Data Sheet, Technical Information:
  • Power Loss:
    0 W
  • Compatible Bus Systems:
    KNX (TP)
  • Product Range:
  • Mounting Type:
    Flush Mounted
  • Sensor Type:
    Separate light sensor
  • Manual Operation:
  • Illuminance:
    200 ... 3000 lx
  • Color:
  • Application Function:
    Electrical Load and Light Control



  • Product Net Width:
    54 mm
  • Product Net Height:
    20 mm
  • Product Net Depth / Length:
    54 mm
  • Product Net Weight:
    0.04 kg

Certificates and Declarations


  • ETIM 8:
    EC000927 - Brightness sensor for bus system
  • ETIM 9:
    EC000927 - Brightness sensor for bus system
  • WEEE Category:
    5. Small Equipment (No External Dimension More Than 50 cm)
  • WEEE B2C / B2B:
    Business To Consumer
  • CN8:
    8538 90 91
  • eClass:
    V11.0 : 27143111
  • Object Classification Code:
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