OEM Carrier 1-Pole Contactor 24V 30A (HN51KC024) for Model PH10JA04800GABAA

This OEM single-pole contactor is the factory-specified replacement part for the Carrier PH10JA04800GABAA packaged heat pump unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes to send line voltage to the compressor and/or fan motor. When the contactor fails — through burned or pitted contacts, a welded coil, or an open coil — your system will either refuse to turn on entirely, run continuously without cycling off, or hum without the compressor starting. Replacing a worn contactor promptly prevents costly compressor damage from voltage irregularities.

• Specs: 1-Pole configuration | 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 genuine Carrier Factory Authorized Part, engineered to exact factory tolerances for the PH10JA04800GABAA. Generic contactors may use lower-grade contact materials that pit faster under load, leading to premature failure and potential compressor damage.
• Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. Verify 24V coil pull-in after installation with a thermostat call.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Verified fit for Carrier model PH10JA04800GABAA. Confirm part number HN51KC024 against your unit's wiring diagram or parts list before ordering. Need fitment help? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.