OEM Carrier Contactor 2-Pole 24V Coil for Model PH14NA02400GAAAA

This OEM contactor (part number HN51KC024) is the factory-specified high-voltage switching relay for the Carrier PH14NA02400GAAAA heat pump condenser. The contactor acts as the main power switch between your electrical panel and the compressor and condenser fan motor — controlled by a low-voltage (24V) signal from your thermostat. When the contactor fails, the most common symptoms include an outdoor unit that won't energize at all, a buzzing or chattering noise from the contactor coil, pitted or burnt contact points, or a unit that runs continuously and won't shut off.

• Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier PH14NA02400GAAAA | Heavy-duty silver-alloy contact points rated for high-cycle operation
• OEM vs Generic: This is a genuine OEM Carrier contactor manufactured to exact factory tolerances. Generic aftermarket contactors may use thinner contact material that pits prematurely, leading to repeat failures, compressor damage, or nuisance lockouts.
• Install difficulty: 3/5 — Always shut off power at both the breaker panel and the disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter to verify coil resistance and contact continuity. Photograph all wiring before disconnecting terminals.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier PH14NA02400GAAAA heat pump. Always verify coil voltage and pole configuration against your unit's data plate before ordering. Our technical team is available to confirm fitment — order with confidence and get back to comfort fast.