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This is the factory-specified OEM replacement contactor for the Carrier C4850C48ZG060100 packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the thermostat calls for cooling, the contactor closes to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that simply won't turn on, hums without starting, or runs continuously without shutting off. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed for the Carrier C4850C48ZG060100 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock orders.