Answer Posted / rehan sajid dharme

There are the difference set of curves for which the MCB is programmed to take the initial inrush of current I.e. Starting current of the load

B curve MCB: 2-3 times of full load current

C curve MCB: 5-7 times of full load current

D curve MCB: 10-12 times of full load current

So depending upon the type of load i.e. Resistive or inductive we can make the selection appropriately

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