The answer to 'difference between circuit breaker' is that a circuit breaker and a fuse are both electrical safety devices used to protect wiring and equipment from overloads and short circuits, but they have some key differences in how they function and are used.
Circuit breakers are reusable devices that can be reset after they trip, while fuses are one-time use and must be replaced. Circuit breakers are more common in modern homes and provide more flexibility, but fuses may be less expensive. Circuit breakers are generally better suited for frequent resets, while fuses are more appropriate for locations with less risk of overloads.