ELR-51AS & ELR-52AS
Earth Leakage Relay
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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 Iān (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).