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This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C50A204022 packaged unit. The contactor acts as the main electrical switch that allows 240V power to flow to the compressor and condenser fan motor when the thermostat calls for cooling. A failed contactor is one of the most common causes of a non-functioning air conditioning system — symptoms include the unit not turning on at all, the compressor failing to engage, or visible pitting and burning on the contactor points after inspection. OEM part numbers HN53CB115, HN53CD115, and HN53HF122 are all covered under this listing.
Compatibility: Engineered specifically for the Carrier C50A204022 commercial packaged rooftop unit. Cross-references OEM part numbers HN53CB115, HN53CD115, and HN53HF122. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Our fitment specialists are available to verify compatibility before you buy — don't hesitate to reach out.