RCCB: Residual Current Circuit Breaker
As the name suggest, the basic Principle of this circuit breaker is to operate on Residual current.
ELCB (Earth Leakage Circuit Breaker):
ELCB are mainly two types: 1) Current Operated and 2) Voltage Operated ELCB [VOELCB]
Current operated ELCB are as same as RCCBs or we can say the term current operated ELCB was old and new term is RCCB.
Current operated ELCB are as same as RCCBs or we can say the term current operated ELCB was old and new term is RCCB.