Bargain Siemens HHFD63B175 – 175A 3 Pole Molded Case Circuit Breaker

The HHFD63B175 is a 3-pole, 175A MCCB from Siemens’ Sentron family, built for robust commercial power distribution. This unit-mount FD frame breaker installs into compatible Siemens panelboards and switchboards. It has been superseded by the 3VA5217-7EC31-0AA0, which requires a retrofit kit for panel upgrades. Rated for 100 kAIC at 480VAC, the breaker features a thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings, plus HACR rating for HVAC applications.