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This is the factory OEM replacement contactor (part number HN51KC024) for the Payne PA3ANA036000BBAA split-system air conditioner. The contactor is the high-voltage switching relay that receives a 24V signal from the thermostat and closes the circuit to send 240V power to the compressor and condenser fan motor. When it fails, the most common symptoms include an air conditioner that won't turn on at all, a unit that hums but never starts, or pitted/burnt contacts that cause intermittent operation or excessive amp draw.
Compatibility: Designed as a direct drop-in replacement for the Payne PA3ANA036000BBAA 3-ton split-system condenser. Always verify coil voltage and pole configuration against your unit's wiring diagram or data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — no guesswork required.