Question: what is mccb and rccb?
Answer: MCCB menas Moulded case Circuit Breaker -- it is used for. 25oAmps to 800Amps in the motor feeders. ELCB means Earth Leakage Circuit Breaker -- it is used to. trip the Circuit breaker if any leakage fault occured means. RCCB means Residual Current Circuit Breaker -- A residual.