OEM Carrier 1-Pole Contactor 30A 24V Coil — HN51KC024 for Model PH13NB048000ABAA

This is the genuine OEM factory-replacement contactor for the Carrier PH13NB048000ABAA heat pump condenser. The contactor is a high-voltage switching relay energized by the 24V control circuit — when the thermostat calls for cooling or heating, the contactor closes to send line voltage to the compressor and condenser fan motor. When it fails, the most common symptom is the outdoor unit failing to start entirely, or the unit running continuously without shutting off due to welded/fused contacts. Pitted, burned, or stuck contacts are tell-tale signs this part needs immediate replacement.

• Specs: 1-Pole | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This is a Carrier Factory Authorized Part engineered to exact factory specifications for the PH13NB048000ABAA. Generic contactors may have looser coil tolerances and thinner contact surfaces, increasing the risk of premature failure under heavy cycling loads.
• Install difficulty: 2/5 — Always disconnect and lock out ALL power before servicing. Discharge any capacitors in the control compartment. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor and transfer wires one at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty. Orders placed by 3PM local time ship same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH13NB048000ABAA (4-ton, R-410A heat pump). Verify your unit's data plate and parts list before ordering to confirm HN51KC024 is the specified contactor. Have a question about fitment? Our HVAC parts team confirms compatibility before you order — reach out anytime.