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This OEM contactor is the factory-specified replacement for the Carrier C4850C50ZN055600 packaged unit. The contactor is a high-voltage relay that closes the circuit between your power supply and the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to worn contact points, pitting, or a burned coil — the system either won't energize at all or may run continuously regardless of thermostat demand. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed for the Carrier C4850C50ZN055600 packaged unit. Verify your existing contactor's pole count, coil voltage, and load amperage against your unit's data plate and wiring diagram before ordering. This listing covers OEM part numbers HN53CB115 and HN53HF122. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us anytime.