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Answer Posted / jamsheer koonari
MCB means Miniature Circuit Breaker-Operated up to 100A circuits
MCCB means Moulded Case Circuit Breaker-up to 1000A
ELCB means Earth Leakage Circuit breaker-operated only for leakage current.
RCCB means Residual Current Circuit Breaker-same as ELCB which is working for both leakage and short circuit.
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