OEM Carrier Single-Pole Contactor 1P 24V 30A (HN51KC024) for Model PH3ANA024000BAAA

This OEM Carrier contactor (part# HN51KC024) is the factory-specified high-voltage switching relay for the Carrier PH3ANA024000BAAA packaged unit. The contactor acts as the primary power switch between your 24V control circuit and the high-voltage compressor and fan motor loads — when the thermostat calls for cooling, the 24V coil energizes and closes the contacts to power the system. When the contactor fails, symptoms include the outdoor unit not starting at all, the compressor humming but not running, contacts welded shut causing the unit to run continuously, or a visibly burnt/pitted contact surface on inspection.

• 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 Carrier specifications for the PH3ANA024000BAAA. Generic contactors may carry looser tolerances on coil pull-in voltage and contact gap, increasing the risk of premature failure, nuisance lockouts, or welded contacts under high-cycle summer loads.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Match line, load, and 24V coil terminals to your unit's wiring diagram. Verify contactor pull-in by restoring a 24V thermostat call after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Factory-matched for Carrier model PH3ANA024000BAAA. Also cross-references part numbers HN51CC024, P282-0311, P282-1304, P282-1305, and 0351802X67. Always confirm your unit's data plate and parts list before ordering. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy.