Prevent your solar cabling from overloading and catching fire with a circuit breaker. Circuit breakers are designed to protect your electrical system in the event of a fault, overload, or electrical short, and are therefore important for the long-life of your system. Be sure to select a breaker that is sized in accordance with your cable size. SolarTown carries AC circuit breakers, DC circuit breakers and AC/DC circuit breakers. Make sure that you select the correct circuit breaker for your application.