Earth Leakage Relays



Variable Earth Leakage Relays in compact 35mm din rail mounting cases for use on 3 phase electrical systems.


To monitor earth leakage current and to operate an associated relay at a preset current. May be used to shut down a system or operate an alarm under fault conditions.




Part No. Sensitivity Time Delay Frequency Voltage
RCR-V30 30mA-30A 0-10 secs 50/60Hz 115/230V AC
RCR-V30-400V 30mA-30A 0-10 secs 50/60Hz 400V AC
RCR-V30-60V DC 30mA-30A 0-10 secs 50/60Hz 10-60V DC

ELR’s are fitted with test and reset buttons. Pressing the test button allows a fault to be simulated and the output relays operate accordingly. Pressing the reset button after a fault occurs restores the unit back to its normal operation. A red LED light will illuminate after the unit trips due to an excessive fault current.

Dimensions (mm)


Supply Voltage (Un): 24, 115/230, 400V AC (85-115%)
12-125V DC (85-110%)
10-60V DC(90-110%)
Terminal Conductor: ≤ 2.5mm2 stranded
≤ 4mm2 solid
Power Consumption: 6VA Output: 1 x SPNO relay
1 x SPDT relay
Ambient Temperature: -20 to +55°C Terminal Protection: IP20
Relative Humidity: +95% Approvals: IEC 60755, 60947, 62020, 61543
Housing: UL94VO Flame Retardant
Weight: 200g N.B.
210mm toroids should not be used for sensitivity settings of less
than 300mA.
Mounting: 35mm Din Rail

Connection Diagrams



Core balance CT’s


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