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This is the factory-specified OEM replacement contactor for the Carrier C50A302062 packaged unit, supplied under part numbers HN53CB115 and HN53CD115. The contactor is a high-voltage relay that switches line-voltage power to the compressor and condenser fan motor when the 24V control circuit signals a call for cooling. When the contactor fails — due to pitted contacts, a burned coil, or contacts that weld shut — you'll typically experience an AC that won't turn on at all, a compressor that won't energize despite the thermostat calling for cooling, or conversely, a system that runs continuously and won't shut off.
Compatibility: Designed as a direct OEM replacement for the Carrier C50A302062 packaged unit. Verify pole count, coil voltage, and amperage rating on your existing contactor's data label before ordering to confirm fitment. If you have any questions about compatibility, our HVAC parts specialists verify fitment before you order — no guesswork required.