Earth Leakage Relay

Earth Leakage Relay


Earth Leakage Relay is developed based on IC technology. It protects electrical systems from fire and other electrical hazards. The unit consists of two parts - basic relay and core balance current transformer (CBCT). CBCT is a sensing device that senses earth leakage current of the electrical system and the small signal generated across CBCT's terminal is fed to highly reliable electronic circuit. The detection occurs when the earth leakage current exceeds the set value.

  • LT control panels
  • Motors, generators, transformers
  • Mobile electrical equipment
  • Mines and hazardous sensitive

  • Auxiliary supply: 110/230/415v, 50 Hz
  • Relay contact: 1 C/O contact with 6 Amp. resistive load at 230v AC
  • CBCT types: 70 mm, 110 mm, 200 mm, 300 mm diameter
  • Tripping time: 100 mSec (Fixed) or 0.15 to 3 Sec. (Variable)
  • Reset: Manual
  • Indications: Power on trip
  • Operating temperature: -5ºC to 60ºC
  • Dimensions: 110 x 60 x 90 mm
  • Mounting: 50 x 80 mm
  • Weight (approx.): Basic unit: 360 gm

  • Wide operating current range
  • Reliable solid-state IC technology
  • Wide operating current range
  • Low power consumption
  • Test facility
  • Manual reset
  • Basic unit & CBCT are separate

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