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Answer Posted / anil tandon
The MCBs are classified as per the Holding Currents and thus their usage are define accordingly,
B-Curve MCB:- They have a Holding current of 2 times of rated current and are used for Lighting Loads
C-Curve MCB:- They have a Holding current of 5 times of rated current and are used for motoring Loads.
The MCBs are classified as per the Holding Currents and thus their usage are define accordingly,
B-Curve MCB:- They have a Holding current of 2 times of rated current and are used for Lighting Loads
D-Curve MCB:- They have a Holding current of 10 times of rated current and are used for High Inrush currents E.g -Control Transformer etc
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