What are the difference between C-Curve and D-Curve for
MCB's.
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Answer Posted / stephy
B-curve: magnetic trip units operate between 3 & 5 In
protection of very long cables
protection of networks supplied by generators
C-curve: magnetic trip units operate between 5 & 10 In
protection of standard networks
D-curve: magnetic trip units operate between 10 & 14 In
protection of circuits that supply high inrush
current loads: transformers, motors, etc
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