Difference between Fuse and Circuit Breaker:

The difference between fuse and circuit breaker is given in table below

S. No. Particulars Fuse Circuit Breaker
1 Functions It performs both of functions—detection as well as interruption. It performs the function of interruption only. Fault is detected by relay system provided for this purpose.
2 Operation Inherently complete automatic. Elaborate equipment, such as relays, are required for automatic action.
3 Operating Time Very small (say 0.002 second or so) Comparatively large (0.02-0.05 second).
4 Breaking Capacity Small. Very large.
5 Replacement Needs replacement after every operation. No replacement after operation.

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