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Cir·cuit break·er

/ˈsərkət ˌbrākər/

noun
- 1. an automatic device for stopping the flow of current in an electric circuit as a safety measure.
- ▪ a short period in which travel, business, and human contact are restricted in order to prevent the spread of an infectious disease: "a circuit breaker was recommended by the government's official scientific advisers"
- ▪ a temporary halt automatically placed on trading as a means of inhibiting panic selling: "the circuit breaker was triggered as plunges reached 7 percent"
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Circuit breaker
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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. Its basic function is to interrupt current flow to protect equipment and to prevent fire. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to re... Wikipedia
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