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The Bard 8401-037BX is an OEM 3 pole 30 amp contactor supplied boxed for service replacement in Bard wall mounted and packaged HVAC equipment. This electrical control component uses a low voltage control signal to pull in and close its contacts, allowing the unit to safely switch higher voltage power to major loads such as the compressor and other high draw circuits. Replacing a worn, pitted, or noisy contactor with the correct Bard part helps restore dependable start up, reduces nuisance failures, and supports proper equipment operation. Confirm pole count, amp rating, coil voltage, and unit model compatibility before ordering to ensure correct fit and wiring match.
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.