A circuit breaker is that item that controls the electricity that flows in and out of your home. It prevents appliances from getting burned or blowing up due to electrical instabilities.
Electrical shocks would be a very common thing if there were no home circuit breakers. There are quite a good number of home circuit breaker types that you will come across from time to time.
One particular type is the thermal circuit breaker. When there is extreme power, there is heat created and this heat prompts it to kick into action.
The thermal circuit breaker has two posts or contacts, which hold firm a metallic strip that runs the electricity through. The metallic strip lies between the two contacts.
An upward bend on the strip due to heat disconnects the flow of electricity. After a while, cooling will take place and the strip will get back to its original position thus reconnecting the electricity. This breaker is good if you anticipate that even the slightest of power surges will be dangerous.
The magnetic circuit breaker is yet another type of breaker out there. This one works by the power of magnetism created by the flow of electricity through the system. It begins with a contact plate that has two parts controlling the flow of electricity as long as they are touching each other.
The disadvantage of this breaker is that if it does not cut of electricity by itself will let electricity through if there is a slight increase in the level of electricity. Due to this fact, it is not recommended for homes. Aside from that, you actually have to reset it yourself.
The third and best alternative is one that is a combination. Having the magnetic breaker and thermal breaker all working together is the best way to safeguard equipment from any unanticipated increases of power.