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This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.

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.