Allwin Electric Residual Current Circuit Breaker(RCCB), also known as Earth Leakage Circuit Breaker(ELCB), is designed to cause the opening of contacts to disconnect the load from the supply mains when the residual current is flowing in the circuit. Earth leakage and its associated hazards can be prevented by RCCB. Faulty wires, poorly insulated equipment & incorrect use of an electrical device are the primary elements that may cause leakage of current.