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This OEM contactor is the factory-specified replacement for the Carrier C4850C50Z2055500 packaged unit. The contactor functions as the high-voltage relay that opens and closes the circuit to your compressor and condenser fan motor each time the thermostat calls for cooling. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system either won't turn on at all, runs continuously without shutting off, or trips the breaker repeatedly. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Designed specifically for the Carrier C4850C50Z2055500 packaged unit. This part supersedes OEM numbers HN53CB115, HN53HF122, and HN53HG120 — all three are fulfilled by this listing. Confirm your unit's data plate matches before ordering. Our fitment team is available to verify compatibility before you buy. In stock and ready to ship today — get your system back up and running fast.