OEM Carrier 1-Pole Contactor 30 Amp 24V Coil for Model PH10JA03600GAEAA — Part# HN51KC024

This is the genuine OEM factory-specified contactor for the Carrier PH10JA03600GAEAA heat pump unit. The contactor is the high-voltage switching relay that completes the power circuit to your compressor and condenser fan motor every time the thermostat calls for cooling or heating. When the 24V control circuit energizes the coil, the contacts close and line voltage flows to the load. A failed contactor is one of the most common causes of an HVAC system that won't start, won't shut off, or makes a persistent chattering or humming noise from the condenser cabinet.

• Specs: 1-Pole configuration | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC coil voltage | 50/60 Hz | OEM Part# HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, built to exact factory tolerances for contact gap, coil pull-in voltage, and arc suppression. Generic contactors often use lower-grade contact materials that pit faster, shortening compressor life and increasing nuisance callbacks.
• Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before opening the unit. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Swap wires one-at-a-time to avoid miswiring the 24V coil leads.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH10JA03600GAEAA. Verify your unit's wiring diagram and confirm the 1-pole, 30A, 24V coil specification matches your existing contactor's data tag before ordering. Not sure it fits? Our HVAC parts team verifies fitment before you buy — contact us anytime.