· Breaker
This is a current protection device, when the current is higher than the
rating of breaker(be known as fuse switch or breaker in family) ,the breaker
will turn off. If the current is higher than the rating of breaker, it may make
the building line or electronic device circuit overheating and cause fire,
therefore, when choosing fuse and breaker we should make sure that they are the
same specifications products and accord with the international electrical
standard, thus avoid the over-current caused by equipment failures and human
errors.