Check the listing for details. Cutler-Hammer CH120 20 Amp Circuit Breaker - Black READ DESCRIPTION. Color: Black, Condition: New. Listed at 4.00 USD. THIS IS PER BREAKER NOT WHOLE BOX. I HAVE TONS. They will work in some sq D boxes This Cutler-Hammer CH120 circuit breaker is a reliable and durable option for any interior electrical setup. With a maximum amperage of 20A and a voltage range of 120/240VAC or 101-150V, this circuit breaker is suitable for a variety of applications. The clip-on mounting style and switch control make installation and operation easy and efficient. Made of high-quality plastic and with a black finish, this circuit breaker features an instantaneous break time and is designed with a single pole. It is sold as a single unit and is compatible with 1-10 circuits. Whether you're looking to upgrade your electrical setup or seeking a replacement part, the Cutler-Hammer CH120 circuit breaker is a great choice.