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This OEM replacement contactor is the factory-specified high-voltage switching relay for the Carrier C48A406052 packaged unit. The contactor acts as the primary electrical switch that closes when the thermostat calls for cooling, sending 240V power to the compressor and condenser fan motor. When a contactor fails — due to burned or pitted contacts, a stuck plunger, or a failed coil — the system will simply not respond to a cooling call, leaving you with a running air handler but no cooling whatsoever. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.
Compatibility: Engineered specifically for the Carrier C48A406052 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy. Order today and get back to cool faster.