What is In (current rating) shown on the MCCB? Is this full
load which can withstand by the circuit breaker

Answer Posted / chandra_edu

The current shown in mccb is like below
240/415v
9kA
20A
here 9ka means rated short circuit current when appears
during fault which mccb can withstand
and
20a is actual load current it can withsatnd

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