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Earth Fault Relays

These units ensure the protection of electrical installations. 30mA versions can provide supplementary protection against direct connection. This range of electronic earth fault relays provides monitoring of earth fault currents. When the fault current rises above the selected level, the output contacts of the product operate. Depending on the relay selected, it can have either fixed or adjustable sensitivity, a time delay is also available for selectivity purposes. The relays are linked with detection torroids, different types are available, circular and rectangular in section.