What are the difference between C-Curve and D-Curve for
MCB's.
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Answer Posted / sasi.s
The B,C,D,K,Z indicates the instantaenous tripping current.
It means the minimum value of current causes the circuit to
trip without intentional time delay. approximately < 100ms.
Consider Rated Current be : (In)
Instantaenous tripping current for C Curve is 5-10 times
the rated current(In).
Instantaenous tripping current for D Curve is 10-20 times
the rated current(In).
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