OEM Carrier Contactor 24V Coil for Model PY3GNAA30060NA — HN51KC024

This is the factory-specified OEM replacement contactor for the Carrier PY3GNAA30060NA packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the stat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC system will hum but fail to start, trip the breaker repeatedly, or simply not respond to a cooling call at all.

• Specs: OEM Part No. HN51KC024 | 24V AC coil voltage | High-amperage switching contacts | Direct factory replacement — no modifications required
• OEM vs Generic: This OEM contactor is manufactured to Carrier's exact coil pull-in voltage and contact amp rating. Aftermarket contactors frequently use lower-grade contact material that pits and welds faster under the high inrush current of a compressor start, leading to premature failure and potential compressor damage.
• Install Difficulty: 2/5 — Always disconnect power at both the disconnect box and the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3GNAA30060NA packaged unit. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our technical team is available to confirm fitment — reach out before you buy if you have any questions. In stock and ready to ship today.