OEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA03600GBBAA

This is the OEM factory replacement contactor (part number HN51KC024) for the Carrier CA13NA03600GBBAA single-stage split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to deliver 240V power to the compressor and condenser fan motor. When a contactor fails, the most common symptoms include an air conditioner that won't turn on at all, a system that hums without starting, or visible pitting and burning on the contact points inside the unit. Replacing a worn contactor is one of the most cost-effective repairs in residential HVAC service.

• Specs: 2-pole configuration | 24V coil voltage | 30–40A rated | Factory-spec contact material for reliable closure and long service life under high-cycle conditions
• OEM vs Generic: OEM contactors like HN51KC024 use factory-matched contact alloys and coil windings, ensuring precise pull-in voltage and minimal arcing. Generic contactors may use lower-grade contact materials that pit faster, especially in high-humidity environments, reducing service life significantly.
• Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship the same business day from our stocked warehouse.

Compatibility: This contactor is the direct OEM replacement for Carrier model CA13NA03600GBBAA (3-ton, single-stage R-410A split-system condenser). Always verify the pole count, coil voltage, and amperage rating on your unit's data plate before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — don't hesitate to reach out. Order today and get same-day shipping on this in-stock OEM part.