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This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C4850C50ZG055200 packaged unit. The contactor acts as the primary switching device that closes the high-voltage circuit to the compressor and condenser fan motor whenever the thermostat calls for cooling. A failed contactor is one of the most common causes of a completely unresponsive air conditioning system — symptoms include the unit not starting at all, audible buzzing or chattering at the contactor, or burnt/pitted contact points visible on inspection. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Engineered specifically for the Carrier C4850C50ZG055200 packaged unit and cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always verify coil voltage and pole configuration on your unit's data plate prior to ordering. Our fitment specialists are available to confirm compatibility before you buy — no guesswork, no return hassle.