Siemens HFXD63B225 Molded Case Circuit Breaker

Siemens HFXD63B225 Molded Case Circuit Breaker is a 225-amp, three-pole protective device designed for 600-volt electrical systems in the Siemens Sentron line, built around a thermal-magnetic trip to provide both long-time and instantaneous fault protection. This MCCB is positioned for use in industrial and commercial distribution panels to guard feeders and motors, delivering reliable interruption of fault currents while coordinating with standard load profiles. Key specifications include a 225 A continuous current rating, 3P configuration, and a 600 V maximum rating, with the HFXD63B225 variant fitting within Siemens' FXD/HFXD family for molded-case breakers. Typical applications encompass main service feeders, motor control centers, and panelboard subfeed protection in commercial or light-industrial installations. The device is documented in Siemens technical literature and retailer listings as part of the Sentron molded-case circuit-breaker family, reflecting its compatibility with Siemens panel architectures and protection schemes.