The CARLO GAVAZZI GMB63 series miniature circuit breakers provide reliable branch circuit protection for a variety of applications. These breakers are UL 489 listed and offer a range of features including bimetallic and magnetic elements for overload and short circuit protection. They are available in 1, 2, and 3-pole configurations with amperage ratings up to 63A and are suitable for use in 240VAC and 480Y/277VAC systems. The GMB63 series is a competitive line for supplementary or branch circuit protection needs.