Encyclopedia > Circuit breaker

  Article Content

Circuit breaker

A circuit breaker is a piece of equipment which is designed to protect an electrical apparatus from damage caused by overload or short circuit. Unlike a fuse which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.

Circuit breakers are usually implemented with an electromagnet whose strength increases as the current increases and eventually trips the circuit breaker.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
East Farmingdale, New York

... 64, and 10.6% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 102.8 males. For every 100 females age 18 and over, there are ...

 
 
 
This page was created in 25.8 ms