A circuit breaker that resets automatically is called what?

A circuit breaker that resets automatically is called what?

• A. Manual
• B. Automatic
• C. Resettable
• D. Cycling

Answer: (D)

A circuit breaker that resets automatically does so in a repeating opening and closing sequence, which is described as cycling. When an overload or fault occurs, the breaker trips to open the circuit. If it then closes again by itself after the condition clears, and this can happen again if the fault returns, you have a cycle of trip and reset. This distinguishes cycling from a manual breaker, which requires someone to reset after tripping, and from a generic automatic breaker or resettable term, which don’t specifically convey the repeating trip-and-close action. So the best term for this behavior is cycling.

A circuit breaker that resets automatically does so in a repeating opening and closing sequence, which is described as cycling. When an overload or fault occurs, the breaker trips to open the circuit. If it then closes again by itself after the condition clears, and this can happen again if the fault returns, you have a cycle of trip and reset. This distinguishes cycling from a manual breaker, which requires someone to reset after tripping, and from a generic automatic breaker or resettable term, which don’t specifically convey the repeating trip-and-close action. So the best term for this behavior is cycling.