OEM Carrier 1-Pole 30 Amp 24V Contactor (HN51KC024) for Model PH12NA03600GACAA

This is the genuine OEM contactor for the Carrier PH12NA03600GACAA heat pump / condensing unit. The contactor is a high-voltage relay controlled by the 24V thermostat circuit — when the thermostat calls for cooling or heating, the 24V coil energizes, closing the contacts and sending line voltage to the compressor and/or fan motor. A failed contactor is one of the most common causes of an AC or heat pump that won't start, hums without running, trips the breaker repeatedly, or shuts down unexpectedly. Visually inspect for pitted, burned, or fused contact points as a first diagnostic step.

• Specs: 1-pole configuration | 24 VAC coil voltage | 30 Amp FLA (Full Load Amps) | 150 Amp LRA (Locked Rotor Amps) | 50/60 Hz | OEM Part# HN51KC024
• OEM vs Generic: This factory-authorized OEM contactor is built to exact Carrier specifications for contact gap, coil pull-in voltage, and contact material — ensuring reliable pull-in, minimal arcing, and a longer service life than generic aftermarket substitutes that may use lower-grade contact alloys.
• Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before opening the unit. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24V coil energizes and contacts pull in with a thermostat call after installation.
• Warranty: 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse.

Compatibility: Fits Carrier model PH12NA03600GACAA. Also cross-references OEM part numbers HN51CC024, P282-1304, P282-1305, P282-0311, and 301362-101. Always verify the part number on your unit's data plate or wiring diagram before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — order with confidence.