What is difference beteen fuse and circuit breaker?

Sharad Jaiswal
Sharad Jaiswal

Posted On: Sep 24, 2020


The differences are:

FuseCircuit Breaker
A fuse is a wire which prevents the circuit from overheating.Circuit breaker is an automated switch that prevent the circuit from the overload
It doesn’t indicate overload.It indicates overloads.
It can be used only once.It can be used for a number of times.
It gives protection against power overloads.It gives protection not only power overloads but also short circuits.
It performs detection and interrupts faulty circuit conditions.It does not detect the faulty circuit conditions. It only performs the interruption process.
It possesses low breaking capacity.It possesses high breaking capacity in comparison with the fuse.
It is automatically operated.Circuit breaker can either be automatic or manually operated.
It takes very low time to operate which is approx. 0.002 secondsIt takes 0.02 – 0.05 seconds to operate.
It is cheaper as compared to Circuit breaker.It is costly.

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