Answer / 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

Answer / devesh mishra

ln=200A means the full/maximum load current(200A) beyond which the MCCB trips due to overload.

9KA stands for the breaking capacity.

Answer / manikandan

20a-MCCB rated current
9KA-MCCB Breaking capacity ahen short citcuit occour

Answer / mrudang

20a = eithstand current by mccb
9ka = breaking capacity of mcb

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