Earth Leakage Relay

If any current leaks from any electrical installation there must be any insulation failure in the electrical circuit it must be properly detected and prevented otherwise there may be a high chance of electrical shock if anyone touches the installation an earth leakage circuit breaker does it efficiently.

Earth leakage relay.

Toroidal transformers ct1 ctd1. Earth leakage relays are used to sense small magnitude of currents. These relays are designed in such a way that whenever they sense a preset value of current usually settable between 10ma and 3a it trips the circuit breaker and interrupts the flow of current. Earth leakage relays are normally used in low voltage circuits only.

To be used with elr b elr 3c d30. It detects small stray voltages on the metal enclosures of electrical equipment and interrupts the circuit if a dangerous voltage is detected. Real time monitoring of leakage current. Manual test button for relay operation checking.

Suitable for direct pulse current and immune to external disturbances. Earth leakage protection measurement for low voltage. Detection of no connection to zct zero phase current transformer. Qty add to cart.

Electronic relays with adjustable delay time. Elr detects the leakage current in the circuit and isolate the power supply by switching off the tripping device circuit breaker contactor etc. The earth leakage current are very low and are sensitive leakage current can be detected by earth leakage relay and core balance current transformer. Earth leakage relay without built in toroidal transformer elr b elr 3c.