OEM Carrier Single-Pole Contactor 30 Amp 24V — HN51KC024 for Model PH13NR01800GAEAA

This genuine OEM single-pole contactor (part number HN51KC024) is the factory-specified replacement for the Carrier PH13NR01800GAEAA heat pump condenser unit. The contactor acts as the primary high-voltage switching relay in the outdoor unit, energizing the compressor and condenser fan motor every time the thermostat calls for cooling or heating. When the 24V control circuit signals a call, the coil pulls in the contacts and closes the high-voltage circuit to the load. A failed contactor is one of the most common reasons an outdoor unit won't start — symptoms include the unit humming but not starting, chattering or buzzing sounds from the electrical panel, contacts welded shut causing the unit to run continuously, or a complete no-start condition.

• Specs: 1-Pole configuration | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC coil voltage | 50/60 Hz rated | OEM part number HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, engineered to exact specifications for the PH13NR01800GAEAA. OEM contactors feature precision contact plating and coil windings calibrated to pull in reliably at 24V — off-brand units often chatter or fail to seat cleanly, risking compressor damage from voltage drop.
• Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removing any terminals. Verify 24V coil pull-in after installation before closing the panel.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier model PH13NR01800GAEAA heat pump condenser. Verify your unit's wiring diagram and part list confirm HN51KC024 before ordering. Our fitment team is available to cross-reference your model and serial number — contact us before purchasing if unsure. Order now for same-day shipping.