Earth Leakage Circuit Breaker Diagram Pdf. The metal body of the load is associated with the fault terminal of the earth leakage circuit breaker elcb the earth terminal is associated with the ground. It trips the circuit when there is earth fault current.
As a user one needs to be careful in selecting earth leakage relays. Earth leakage circuit breaker diagram. Unlike the voltage operated earth leakage circuit breaker which requires both a connection to earth and for a fault current to pass through it in order to operate an rcd has no connection to earth at all.
The main function of an earth leakage circuit breaker or elcb is to prevent shock while electrical installations through high earth impedance because it is a safety device.
Circuit breaker c is selective type and circuit breaker d is with no time delay. As a user one needs to be careful in selecting earth leakage relays. Motor control protection molded case switches for use as isolators or switching devices for lines busbars or parts of a plant mcs. Earth leakage circuit breaker or elcb.