Product Description: The Siemens HMD63F800H is a Molded Case Circuit Breaker from the Sentron Series family. It features a 3-pole design with a 600V, 800A rating and a 65kA@480V AIC rating. This HMXD type breaker uses a Bolt-On connection and includes Thermal Magnetic protection. The frame-only unit does not include lugs or a trip unit.