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Detailed information for: CM-LWN

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Data Sheet
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General Information

  • Extended Product Type:
  • Product ID:
  • EAN:
  • Catalog Description:
    CM-LWN Motor load monitor, 2x1c/o L1-L2-L3=500VAC, L1/k-L1/l=5A,480-500VAC
  • Long Description:
    The CM-LWN relay is from the CM motor load monitors range. This relay operates with a rated control supply voltage of 480-500 V AC, has a 2 x 1 c/o (SPDT) output with contacts rated at 250 V / 4 A and works according to the closed-circuit principle. Its measuring principle is based on the evaluation of the phase shift between the voltage and the current in one phase of single- or three-phase asynchronous motors (squirrel cage). The measuring circuit is designed for measuring voltages of 110-500 V AC and measuring currents of 0.5-5 A AC. The window (over- and underload) monitoring allows setting of two individual threshold values, one for maximum load and one for minimim load. The hysteresis is fixed at 4 ° related to the phase angle. The tripping delay is adjustable within a range of 0.2 to 2 s and the start-up delay within a range of 0.3 to 30 s. A sealable transparent cover for protection against unauthorized changes is available as accessory.


  • EAN:
  • Minimum Order Quantity:
    1 piece
  • Customs Tariff Number:


  • Product Net Width:
    45 mm
  • Product Net Height:
    78 mm
  • Product Net Depth / Length:
    100 mm
  • Product Net Weight:
    0.291 kg

Container Information

  • Package Level 1 Units:
    1 piece
  • Package Level 1 Width:
    81 mm
  • Package Level 1 Height:
    106 mm
  • Package Level 1 Depth / Length:
    46 mm
  • Package Level 1 Gross Weight:
    0.317 kg
  • Package Level 1 EAN:


  • Function:
    Motor load monitoring
  • Measuring Range:
    0.5-5 A @ 110-500 V AC
  • Rated Control Supply Voltage (Us):
    480 ... 500 V AC
  • Rated Frequency (f):
    50 Hz
    60 Hz
  • Output:
    2 x 1 c/o (SPDT) contact
  • Time Range:
    0.3 ... 30 s start-up delay
    0.2 ... 2 s tripping delay
  • Terminal Type:
    Screw Terminals


  • RoHS Status:
    Following EU Directive 2011/65/EU

Certificates and Declarations (Document Number)


  • Object Classification Code:
  • ETIM 4:
    EC002057 - Power relay
  • ETIM 5:
    EC002057 - Power relay
  • ETIM 6:
    EC002057 - Power relay
  • ETIM 7:
    EC002057 - Power relay
  • ETIM 8:
    EC002057 - Power relay
  • eClass:
    V11.0 : 27371016
  • E-Number (Finland):
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