OEM Carrier Single-Pole Contactor 30A 24V Coil (HN51KC024) for Model PH13NR030000ACAA

This is the factory OEM contactor for the Carrier PH13NR030000ACAA heat pump condenser unit. The contactor acts as a high-voltage relay, responding to a 24V signal from the thermostat or control board to connect line voltage to the compressor and condenser fan motor. When a contactor fails, common symptoms include the outdoor unit refusing to start, a loud chattering or buzzing noise at the contactor, the unit running continuously and failing to shut off, or visibly burnt and pitted contact points. Replacing a failed contactor promptly protects the compressor from voltage irregularities and prevents costly secondary damage.

• Specs: 1-Pole (single-pole) | 30A FLA / 150A LRA | 24 VAC coil voltage | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact coil impedance and contact gap tolerances. Aftermarket contactors may use lower-grade silver-alloy contacts that pit faster under the high inrush currents of compressor starts, shortening service life significantly.
• Install Difficulty: 2/5 — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wiring connections before removal. Verify 24V coil pull-in with a multimeter after installation.
• Warranty & Shipping: Backed by Carrier's 1-year OEM parts warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the factory-specified contactor replacement for Carrier model PH13NR030000ACAA. Also cross-references to HN51CC024, P282-0311, P282-1304, P282-1305, 301362-101, and 0351802X67. Always verify your unit's wiring diagram and data plate before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy.