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This is the factory-specified OEM replacement contactor for the Carrier C4850C48ZN070200 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat or control board and closes the circuit to energize the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the system will appear completely unresponsive: the thermostat calls for cooling, but nothing starts. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed as a direct OEM replacement for the Carrier C4850C48ZN070200 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Verify coil voltage (24V) and pole configuration on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.