Eaton Cutler-Hammer HKDDC3400KW Molded Case Switch

The Eaton Cutler-Hammer HKDDC3400KW is a three-pole, 400-amp molded case switch from the HKD-DC-K family. This device serves as a manual disconnect used to interrupt current in electrical distribution circuits, and it is suitable for installation in panels, switchgear, or motor control centers where a robust, high-current disconnect is required. The HKDDC3400KW model designation places it within Eaton’s Cutler-Hammer HKD-DC-K line, aligning with standard mounting patterns and accessory configurations to simplify integration into compatible assemblies. Encased in a molded insulating housing, this switch provides durable isolation of three conductors and supports common three-phase switching tasks found in commercial and industrial electrical installations. As part of Eaton’s long-standing Cutler-Hammer line, it embodies the reliability and design approach typical of molded case switches used for equipment protection and service reliability. The 3-pole arrangement allows simultaneous control of all three phases, enhancing safety and maintenance workflows.