In this post, we will learn the difference between a circuit breaker and a fuse.
In an electrical system, the circuit is subjected to man faults and distortions; which can damage them if not protected. So, protection is a must in any electrical wiring before powering it up.
Two of the most widely used protection devices are – fuses and circuit breakers.
These devices cannot prevent the occurrence of a fault, but they can prevent the circuit from any fault if occurs. They prevent excessive currents from damaging the circuit by interfering with them and blocking them.
In this post, we will understand the difference between a fuse and a circuit breaker.
The circuit breaker is a device that is used as a protective switch for passing electrical current with tripping conditions checked.
When it detects a trip condition, the circuit breaker opens its contact and isolates the input and output voltage from contacting each other.
So, its basic function is to interrupt current flow after a fault is detected. It then remains open as long as the user does not reset the trip.
A fuse is a device that is used as a protective switch for passing electrical current with excessive current conditions checked.
When it detects an excessive current condition, the fuse destroys itself and isolates the input and output voltage from contacting each other.
So, its basic function is to interrupt current flow after an overcurrent is detected. The circuit then remains open as long as the user does not replace the damaged fuse with a new one.
Both the circuit breakers and fuses must be installed in a circuit with a higher current rating than the rated current which the circuit will carry.
For example, if the wiring is designed to carry a current of 3A, then install a circuit breaker or fuse of a rating of 5A. Now, let us see the difference between both devices.
The following are the differences between a fuse and a circuit breaker.
In this way, we understand the difference between a circuit breaker and a fuse.
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