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The Bard 8401-041BX is an OEM 3 pole, 40 amp contactor supplied boxed for service replacement in Bard wall mount HVAC equipment. This electrical switching component is what allows the low voltage control signal to safely energize and de energize higher current loads, commonly the compressor and other major circuits, so worn or pitted contacts can cause intermittent operation, nuisance shutdowns, or no start complaints. Using the correct Bard contactor helps maintain proper electrical performance and dependable cycling, and it is the right choice when you are matching factory fit and wiring layout during a repair. Before ordering, confirm pole count, amp rating, and coil voltage requirements against your unit wiring diagram and the original contactor label.
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.