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Earth Leakage RelayEarth Leakage Relay


  1. High speed Microcontroller design for consistent reliability with high accuracy
  2. Trip current and time setting by dip switches
  3. Wide range in current and time setting
  4. Healthy, Faulty and Trip indication by LED's
  5. Built in TEST facility to check healthiness of the unit
  6. Tamper proof and dust proof by front polycarbonate cover
  7. High barrier with shrouded connections for easy and safety terminations


  • Earth leakage protection for LT control panels and switch gears
  • Earth leakage protection for Motors,Generators,Feeders,Transformers.
  • Protection for building management, utility power monitoring
  • Protection for process control in hazardous sensitive equipement like oil refineries and chemical process etc.
  • Protection in mining and control engineering


  • Measuring Inputs: From core balance Transformer
  • Auxillary Voltage: 110V,230V and 415V AC
  • Frequency: 50Hz
  • Auxillary burden: 2.3W
  • Trip current setting: 0.5 to 8A in steps of 0.5A
  • Trip Time setting: Instantaneous 1 to 15sec. In steps of 1 sec
  • Accuracy: ±3% on current and 1% on Time setting
  • Core balance CT: Tape wound and resin cast(On request)
  • Output relay contacts: 2 C/O contacts
  • Contact rating: 5A at 230VAC/30VDC
  • Mouiting type: Flush mounting
  • Enclosure: ABS plastic with front polycrbonate cover
  • Case: 96X96X50 mm
  • Panel cut out:91X91 mm ±0.5 mm
  • Operating temperature: -10° to +70°C