Can we use RCBO as sub-main breaker to protect outgoing breakers instead of RCCB /ELCB plus Miniature circuit breaker MCB? | Schneider Electric Egypt and North East Africa

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Can we use RCBO as sub-main breaker to protect outgoing breakers instead of RCCB /ELCB plus Miniature circuit breaker MCB?

Yes you can use RCBO as a replacement to MCB and RCB. In general, RCBO is basically circuit breaker in addition to residual current device. It provides over current, short circuit as well as earth leakage protection.