Nofuel NB9 plug circuit breakers are overload and short circuit protection for your electrical system. Anxi certified and UL listed units are rated for 120/240 VAC and 10,000 air. All circuit breakers are equipped with exclusive Visi-trip indicators. This allows you to easily distinguish trips in a load center, which may contain up to 42 different circuit breakers. NB9 circuit breakers have features that other manufacturers cannot. They come in many different sizes to meet the needs of almost every function in your home or business. These types of quality, industry-exclusive products stay ahead of the competition and are the first choice for manufacturers and electrical contractors when it comes to electrical protection.