The Westinghouse Cutler-Hammer HMA3300T Trip Unit is a 300 A Type HMA MA Trip Unit, a component specified as part of the HMA protection technology lineup. Identified by part number 371D371G27, this unit provides precise identification for ordering and replacement within the HMA product family. As a trip unit, it performs the protective function by triggering trips under adverse electrical conditions in accordance with its Type HMA designation.
