OEM Carrier 1-Pole Contactor 30 Amp 24V Coil for Model PH13NR01800GAKAA — HN51KC024

This is the genuine OEM Carrier contactor (part# HN51KC024) factory-specified for the Carrier PH13NR01800GAKAA heat pump condensing unit. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to energize the compressor and/or condenser fan motor. When it fails, your outdoor unit will either refuse to start at all, hum without running, or — if contacts are welded shut — run continuously even when cooling isn't called for.

• Specs: 1-Pole | 30 Amps FLA / 150 Amps LRA | 24 VAC coil | 50/60 Hz | Screw-terminal connections | R-410A system compatible
• OEM vs Generic: This factory-authorized OEM contactor meets Carrier's exact contact gap, coil pull-in voltage, and arc suppression specifications. Generic contactors often use thinner contact material that pits faster under the high inrush current of a compressor start, shortening service life significantly.
• Install difficulty: 2/5 — Shut off power at the disconnect box and the breaker before opening the unit. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting — line, load, and 24V coil terminals must be reconnected exactly. Verify 24V coil pull-in after reinstallation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-matched for Carrier model PH13NR01800GAKAA. Also cross-references to Bryant, Payne, and Day & Night units specifying part# HN51KC024 or P282-0311. Always confirm against your unit's wiring diagram and data plate before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.