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This is the factory-specified OEM replacement contactor (part number HN51KC024) for the Payne PA15NC04200GAAAA split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes to send line voltage to the compressor and condenser fan motor. When it fails — due to pitted contacts, a stuck plunger, or burned coil — the outdoor unit will refuse to start even when the thermostat is calling for cooling, or it may run continuously without shutting off.
Compatibility: Engineered specifically for the Payne PA15NC04200GAAAA split-system air conditioner. Always verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping means you're back up and running fast.