if ELCB and RCCB connected in series,what wiil be the result

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if ELCB and RCCB connected in series,what wiil be the result..

Answer / k.prakashchandra

double protection / investment

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if ELCB and RCCB connected in series,what wiil be the result..

Answer / basith

ELCB and RCCB will be give same output.

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