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This OEM contactor is the factory-specified high-voltage relay for the Carrier C50A206051 commercial packaged unit. The contactor acts as the electrical gatekeeper between your thermostat's 24V control signal and the high-voltage power feeding the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the unit will either refuse to start entirely, run continuously without cycling off, or trip breakers under load. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Designed for the Carrier C50A206051 commercial packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — verify coil voltage and pole configuration against your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase. In stock and ready to ship today.