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This OEM replacement contactor (part number HN51KC024) is the factory-specified high-voltage relay for the Payne PA3ZNB036000AA 3-ton split-system air conditioner. The contactor acts as the main power switch between your 240V line voltage and the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the contacts and allowing the unit to run. A failed contactor typically causes the AC to not turn on at all, run continuously without shutting off, or produce a chattering/buzzing noise from the outdoor unit.
Compatibility: Engineered specifically for the Payne PA3ZNB036000AA 3-ton split-system condenser. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — don't guess on a contactor replacement. Order now and get same-day shipping on this in-stock OEM part.