BREAKERS BU402U20 Definite Purpose Contactor

BU402U20 is a two-pole, 40 A, 120 V coil definite purpose contactor designed to switch motor loads in control panels and equipment; it is commonly installed in HVAC and refrigeration circuits where a dedicated DP switch is preferred for safety, reliability, and compliance with industry norms, and it offers a straightforward, compatible replacement for OEM gear in many existing control schemas.

Part of the Bulletin 400 Definite Purpose family from BREAKERS, the BU402U20 is built to handle typical HVAC duty, such as fan motors, compressor starters, condensate pumps, and related control tasks, while providing a compact footprint that fits standard enclosure spaces and simplifies wiring in panel boards and equipment racks.

With a 2-pole configuration, a 40 A load rating, and a 120 VAC coil, this device supports operation in systems up to 600 V AC and is designed for devices that require a code-listed, pre-approved motor-controlling switch, making it a practical, ready-to-install DP-contactor option for technicians replacing failed DP400 units or upgrading control circuits.