OEM Carrier 2-Pole Contactor 24V Coil for Model PH10JA024000AGAA

This is the factory OEM replacement contactor for the Carrier PH10JA024000AGAA heat pump system. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When a contactor fails — due to worn or pitted contact points, a burned coil, or contacts welded shut — your system will either fail to start entirely, run continuously without shutting off, or produce a loud chattering or buzzing from the electrical cabinet.

• Specs: 2-Pole design | 24V AC coil voltage | Factory-matched contact rating | OEM Part Number: HN51KB024
• OEM vs Generic: This is the exact OEM contactor specified by Carrier for the PH10JA024000AGAA. OEM contacts use higher-grade silver alloy that resists pitting and arcing far longer than generic alternatives, protecting your compressor investment.
• Install Difficulty: 3/5 — Line voltage (240V) is present inside the disconnect and unit cabinet. Always shut off power at the disconnect box AND the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH10JA024000AGAA. Always verify coil voltage and pole configuration against your unit's wiring diagram or data plate before ordering. Our fitment specialists are available to confirm compatibility before you buy — no guesswork required.