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. They incorporate both bimetallic elements for detecting small overloads and magnetic elements for responding to short circuit conditions, ensuring comprehensive circuit protection. The GMB63 series is UL 489 certified and offers a range of accessories for enhanced functionality and installation flexibility.