OEM Carrier 1-Pole 30 Amp 24V Contactor for Model PH13NB030000AAAA — HN51KC024

This OEM single-pole contactor is the factory-specified replacement for the Carrier PH13NB030000AAAA heat pump system. The contactor acts as the high-voltage relay that closes the compressor circuit whenever the thermostat sends a 24V call for cooling or heating. When the contactor fails, the compressor and condenser fan motor receive no power — leaving you with a system that hums, trips the breaker, or simply won't turn on at all. Pitted or welded contacts are the most common failure mode and can also cause the compressor to run continuously even when cooling is not being called for.

• Specs: 1-Pole | 30A FLA / 150A LRA | 24 VAC Coil | 50/60 Hz | OEM Part# HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact factory specifications. Generic contactors often use lower-grade contact materials that pit and weld faster, shortening compressor life and risking nuisance callbacks.
• Install Difficulty: 2/5 — Shut off power at both the breaker and disconnect before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24V coil pull-in with thermostat call after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PH13NB030000AAAA heat pump condensers. Verify your unit's data plate lists OEM part number HN51KC024 before ordering. Our fitment specialists are available to confirm compatibility — just reach out before you buy. Order today and get same-day shipping on in-stock parts.