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This OEM Carrier contactor (part number HN52KC053) is the factory-specified high-voltage switching relay for the Carrier YAC36100YAC306 condensing unit. The contactor acts as the primary power switch that allows the 24V thermostat signal to energize the compressor and condenser fan circuit. When the contactor fails — through pitted or burned contacts, a welded coil, or a worn-out pull-in mechanism — the result is a condenser that either refuses to start, runs continuously without shutting off, or trips the breaker repeatedly. Replacing this part with the correct OEM unit restores precise switching action and protects downstream components like the compressor and fan motor from voltage irregularities.
Compatibility: Engineered as a direct OEM replacement for Carrier YAC36100YAC306 condensing units. Always verify amperage (35A), pole count (2-pole), and coil voltage (208/240V) against your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase — reach out before you order.