OEM Carrier Contactor 2-Pole 24V Coil for Model PH13NA04200GABAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier PH13NA04200GABAA heat pump condenser. The contactor is the high-voltage relay that connects and disconnects line voltage to the compressor and condenser fan motor every time your thermostat calls for cooling or heating. When a contactor fails — due to burned or pitted contacts, a welded coil, or a stuck plunger — the system will either refuse to turn on entirely, run continuously without shutting off, or trip the breaker repeatedly.

• Specs: 2-Pole configuration | 24V AC coil (thermostat-controlled) | Rated for R-410A systems | Factory-matched contact rating for the PH13NA04200GABAA compressor load
• OEM vs Generic: OEM contactors use silver-alloy contacts rated to factory arc-interruption specs, ensuring clean switching and longer contact life. Generic aftermarket units often use lower-grade contact materials that pit and weld prematurely, especially under the high-inrush loads of R-410A compressors.
• Install difficulty: 3/5 — CRITICAL: Disconnect and lock out all power at the breaker before beginning. Capacitors in the unit store lethal charge — discharge before touching. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring terminals before removal. If unfamiliar with high-voltage work, contact a licensed HVAC technician.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model PH13NA04200GABAA heat pump systems. Always verify the coil voltage and pole configuration on your existing contactor's data label before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you order — reach out via chat or phone.