OEM Carrier Single-Pole Contactor 30 Amp 24V — HN51KC024 for Model PH14NA024000AAAA

This is the factory-authorized OEM replacement contactor for the Carrier PH14NA024000AAAA heat pump system. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the high-voltage circuit to energize the compressor and/or condenser fan motor. When the contactor fails — through burned or pitted contacts, a stuck plunger, or an open coil — the outdoor unit will fail to start, run continuously without shutting off, or trip the breaker. Replacing it promptly prevents compressor damage and restores cooling or heating operation.

• Specs: 1-Pole configuration | 30A FLA / 150A LRA | 24 VAC coil voltage | 50/60 Hz | OEM part number HN51KC024
• OEM vs Generic: OEM contactors are manufactured to exact Carrier factory tolerances, ensuring proper coil pull-in voltage, contact gap, and arc suppression. Generic alternatives may have inferior contact plating, leading to premature pitting, welding, and compressor damage under high-load cycling conditions.
• Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before removing any leads. Verify 24V coil pull-in with a thermostat call after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PH14NA024000AAAA residential heat pump systems. Also cross-references part numbers HN51CC024, P282-0311, P282-1304, P282-1305, 301362-101, and 301323-101. Verify the part number on your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility before you buy.