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This OEM contactor is the factory-specified replacement for the Carrier C4850C50AK04151 packaged unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or stuck contacts — the most common symptom is the system failing to turn on at all, or running continuously without responding to thermostat commands. This direct OEM replacement ensures factory-matched electrical performance and long service life. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Engineered specifically for the Carrier C4850C50AK04151 packaged unit. This part directly supersedes OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always verify pole count, coil voltage, and amperage rating against your unit's data plate prior to ordering. Our fitment specialists are available to confirm compatibility before you buy — don't guess on a critical safety component.