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ELR-51AS & ELR-52AS

Earth Leakage Relay

 

Compliances

  • AS/NZS 2081:2011
  • EN 61010, EN 61000-6-2
  • EN 61000-6-3, IEC/TR 60755
  • EN 60947-2 Annex M

Common Features

  • Earth leakage relay type A.
  • Measuring in true effective value (TRMS).
  • Modular DIN-rail housing, 3 modules.
  • External residual current transformer Contrel CT-1 series.
  • Instantaneous display of leakage values.
  • Instantaneous bar-graph of current measurement.
  • Backlighted LCD display (green, yellow, red).
  • Green power LED indicator (ON).
  • Green system healthy LED indicator (OK).
  • Red relay tripped LED indicator (TRIP).
  • TEST and RESET by front button or remote contact input.
  • Log tripped residual current.
  • Auxiliary Supply:
    • A = 110 ā€“ 240Vac.
    • B = 24 ā€“ 48Vac/dc.

Common Settable Features

  • Third harmonic filtering.
  • Tripping Current Iāˆ†n (A) = 30mA to 5A.
  • Tripping Time Delay t (s) = 20ms to 500ms.
  • Tripping fault hysteresis = 50% to 95%.
  • Fail safe function for each relay.

Model Specific Features

  • ELR-51AS DIN
    • Number of current transformer inputs = 1.
    • Number of relays = 2.
      • Dedicated Trip Relay = 1.
      • Configurable Relay = 1.
        • Configurable to Trip or Warning.
        • When set to warning, parameters are:
          • Warning set point = 50% to 90%.
          • Warning time delay t (s) = 20ms to 500ms.
  • ELR-51AS-485 DIN
    • Same as ELR-51AS DIN with RS-485 communication (Modbus RTU protocol).
  • ELR-52AS DIN
    • Number of current transformer inputs = 2.
    • Number trip relays = 2.
  • ELR-52AS-485 DIN
    • Same as ELR-52AS DIN with RS-485 communication (Modbus RTU protocol).

CONTREL EARTH LEAKAGE RELAY

ELR-51AS

CONTREL EARTH LEAKAGE RELAY

ELR-52AS

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