An Earth leakage or earth fault relay (ELR) is made use of to shield a tool or possibly a circuit from earth faults and human being from electrical shocks. It senses The existing leakage to the earth and aids safely and securely isolating the circuit or product. Electromechanical relays transfer https://jasperzeimq.wikidirective.com/6682536/the_greatest_guide_to_relay