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This OEM contactor is the factory-specified replacement for the Carrier C4850C50Z3090610 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat or control board and closes to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will not respond to a cooling call, leaving the unit completely unresponsive despite the thermostat signaling demand. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Engineered specifically for the Carrier C4850C50Z3090610 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Confirm coil voltage and pole count on your unit's data plate before ordering. Our fitment team is available to verify compatibility before you purchase — order with confidence and get back up and running fast.