What are the Differences between Fuse Boxes and Circuit Breakers?

It is important to know the difference between a fuse box and circuit breakers because they’re common in both the household and in businesses and it’s crucial you have the right one for your building. Buildings have a system where when the power flowing through the circuit is too much something cuts the system off which reduces the likelihood of an electrical accident.

In simple terms fuse boxes and circuit breakers do the same job, they cut the flow of electricity off when there is an overload of power. This helps avoid electrical hazards in the building. They both have a box where they’re kept in a safe place which is out of the way. They can be manually reset the re-establish the flow of electricity into the system. They both interrupt the electricity flow buy melting the fuse and then needs to be replaced afterwards. However, the circuit breaker will flip the switch back once the issue is over.


There are many different variations of fuses, they’re commonly made of filament that is surrounded by glass, ceramic and metal. When the circuit is overloaded the filament melts and the electricity will be stopped. The fuse can only be once and must be replaced every time it is used. They’re often slightly quicker than circuit breakers, therefore used more for domestic use. Replacing a fuse is quite simple, however, modern buildings often use circuit breakers because they’re simpler.

Circuit Breakers

Circuit Breakers use an electromagnetic or bi-metal strip that enables electric current to pass through between the different terminals. If the flow of the electricity is too strong for the system then the electromagnet pulls a lever in the switch which then ceases the flow of current. To reset the circuit breaker, you need to flick the switch back into place. This is the advantage of the circuit breaker because it can be used unlimited times saving time and money.

Contact Us

Get in touch if you have any queries about either fuses or circuit breakers, our professional electricians are on hand to make sure you have the precautions in place if the electrical current increases call 01283 808432 or use our contact form.




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