Earth Leakage

Earth Leakage control and monitoring consist of a relay and associated summation toroidal current transformer, typically used in LV networks with alternating current in TT,IT and TNS systems. They provide the required protection against indirect contacts (complementary protection against direct contacts) and against risk of fire (as the low currents through the earth are not enough to let the magnetothermic device intervene). The standard CE1 64.8 says the earth leakage relay is considered as additional protection therefore not an unique device for protection against the direct contacts. All cables of a single or three phase system, including the neutral where present, must cross the torroid which is the point of residual current. The device activates when it detects defective insulation which is indicated when the vectorial sum of the current carrying cables result in a differential figure. Referring standards: CEI EN60947.2/B, CEI 64.8, CEI EN 61008/1 and CEI EN 61010-1. Revalco offer an extensive range including both DIN rail mounted and Panel mounted.

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Earth Leakage Relay 1RDT1
1RDT1 is an entry level Earth leakage relay. It offers a cost effective solution and space s..
£54.95
Earth Leakage Relay 1RDT10
1RDT10 Earth leakage relay has an incorporated toroid and has an 18mm diameter aperture in the ce..
£75.00
Earth Leakage Relay 1RDT3S
1RDT3S Earth leakage relay is a  3 DIN module instrument. It is designed for simplicity and ..
£54.95
Earth Leakage Relay 1RDT3
1RDT3 Earth leakage relay is a DIN 4 module instrument with a full range of trip current adj..
£98.38
Earth Leakage Relay 1RDT30E
1RDT30E Earth leakage relay is a 3 DIN module instrument with a full range of trip current adjust..
£66.95
Earth Leakage Relay 1RDT30K
1RDT30K Earth leakage relay is a 3 DIN module instrument with a wider range for trip adjustment a..
£82.00
Earth Leakage Relay 1RDT4
1RDT4 Earth leakage relay is a  4 DIN module instrument with a wider range for trip adjustme..
£79.00
Earth Leakage Relay1RDT4S
1RDT4S Earth leakage relay is a  4 DIN module instrument with a wider range for trip adjustm..
£69.00
Earth Leakage Relay 1RDT430E
1RDT430E Earth leakage relay is a 4 DIN module instrument with a full range of trip current adjus..
£109.00
Earth Leakage Relay 2RDT4848
The 2RDT4848 is a 48x48mm Panel mounted earth leakage relay, It is designed in LV networks with a..
£99.00
Earth Leakage Relay 2RDT72
The 2RDT72is a 72x72mm Panel mounted earth leakage relay, It is designed in LV networks with alte..
£89.00
Earth Leakage Relay 2RDT7272
The 2RDT7272 is a 72x72mm Panel mounted earth leakage relay, It is designed in LV networks with a..
£89.00
Earth Leakage Relay 2RDT96
The 2RDT96 is a 96x96mm Panel mounted earth leakage relay, It is designed in LV networks with alt..
£99.00
Earth Leakage Relay 2RDT96265E
The 2RDT96265E is a 96x96mm  Panel mounted earth leakage relay with pre-alarm threshold and ..
£339.00
Core Balance Transformer TOR3
The TOR3 Core Balance Transformer is to be used in conjunction with our range of Earth Leakage Re..
£21.90
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