OEM Carrier Contactor 24V Coil 2-Pole for Model PH15NA03000GBAAA

This OEM contactor (part number HN51KC024) is the factory-specified high-voltage relay for the Carrier PH15NA03000GBAAA heat pump. The contactor acts as the main electrical switch between your 24V control board signal and the high-voltage power supply to the compressor and condenser fan motor. When the contactor fails, the most common symptoms are an AC or heat pump unit that won't energize at all, chattering or buzzing noises from the contactor coil, or pitted/burned contact points that cause intermittent or complete loss of cooling and heating.

• Specs: 2-Pole design | 24V control coil | Factory-matched contact rating | Direct OEM replacement for part number HN51KC024
• OEM vs Generic: This is a genuine OEM Carrier contactor built to exact factory specifications. Generic contactors often use lower-grade contact materials that pit and burn faster under load, leading to premature failure and potential compressor damage.
• Install Difficulty: 3/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting terminals.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct fit for the Carrier PH15NA03000GBAAA heat pump. Always verify your unit's data plate and existing contactor pole count and coil voltage before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.