OEM Carrier 2-Pole Contactor 24V Coil for Model CA14NA01800GAAAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CA14NA01800GAAAA split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to send 240V power to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or contacts welded shut — the most common symptoms are an AC unit that won't turn on at all, a unit that runs continuously without shutting off, or visible arcing and burning at the contactor terminals.

• Specs: 2-pole configuration | 24V coil voltage | 30–40A rated | 240V line voltage | Direct OEM replacement for part number HN51KC024
• OEM vs Generic: This OEM contactor is manufactured to Carrier's exact contact gap, coil pull-in voltage, and contact material specifications. Generic contactors often use lower-grade silver-alloy contacts that pit faster under load, leading to premature failure and potential compressor damage.
• Install difficulty: 2/5 — Always shut off power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Engineered specifically for the Carrier CA14NA01800GAAAA split-system condenser. Always confirm your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you complete your purchase — no guesswork, no returns.