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In a Circuit how the MCB and Fuse ratings are calculated.
And shall the fuse follws the MCB or it is otherwise?
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Answer Posted / srihari
first we have to calculate the total load according that we
can use the formula whether it is single phase I=p/V cos(i)
or 3phase I=(P*L.F)/(1.732*V*cos(i))
for example if we get the value 20Amps, so we should choose
near to that value of rating MCCB(32A)
| Is This Answer Correct ? | 14 Yes | 3 No |
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