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circuit breaker
Sign in to saveAlso known as breaker, electrical breaker
automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit
Wikidata facts
- Image
- Circuit breaker 2 pole on DIN rail.JPG
Show 6 more facts
- Commons category
- Circuit breakers
- MCN code
- 8536.20.00
- has characteristic
- colloquial expression
- different from
- trading curb
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- OpenStreetMap tag
- switch=circuit_breaker
Sources (3)
via Wikidata · CC0
~33 min read
Encyclopedic overview
An air circuit breaker for low-voltage (less than 1,000 volt) power distribution switchgear Four one-pole miniature circuit breakers
A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry (overcurrent). Its basic function is to interrupt current flow to protect equipment and to prevent fire. Unlike a fuse, which interrupts once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.
Excerpted from Wikipedia’s “circuit breaker” article, available under the CC BY-SA 4.0 licence.