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This OEM contactor is the factory-specified replacement for the Carrier C50A506022 commercial packaged rooftop unit. The contactor is a high-voltage relay that closes the circuit to the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to pitted contacts, a burned coil, or welded contacts — the system will either refuse to start entirely, run continuously without shutting off, or trip the breaker. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Designed for the Carrier C50A506022 commercial rooftop packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always confirm pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Our parts specialists are available to verify fitment — contact us before you buy for complete peace of mind.