The CARLO GAVAZZI GMB63 series miniature circuit breakers provide reliable branch circuit protection for a variety of applications, including 240VAC and 480Y/277VAC systems. These MCBs are available in 1, 2, and 3-pole configurations with amperage ratings up to 63A, offering flexibility for different circuit requirements. The GMB63 breakers incorporate both a bimetallic element for responding to small overloads and a magnetic element for providing rapid short-circuit protection. They are ideal for use in residential, commercial, and industrial settings where supplementary or branch circuit protection is needed.