OEM Carrier 1-Pole 40 Amp 24V Contactor with Shunt (HN51JD026) for Model PH15NA060000BAAA

This is the factory OEM contactor for the Carrier PH15NA060000BAAA heat pump system. The contactor is the high-voltage relay responsible for switching 240V power to the compressor and condenser fan motor whenever the thermostat calls for cooling or heating. When the contactor fails — due to worn contacts, a burned coil, or contact welding — the unit either won't turn on at all, runs continuously without shutting off, or produces an audible humming or chattering sound from the outdoor cabinet. Replacing this part with the genuine OEM unit restores factory-level switching performance and protects your compressor from voltage irregularities.

• Specs: 1-Pole (SPST) | 40 Amps | 24V AC Coil | 50/60 Hz | Integrated shunt | OEM Part Number: HN51JD026
• OEM vs Generic: This is a genuine Carrier factory part with exact contact gap tolerances, coil pull-in voltage, and arc-quenching geometry. Generic contactors may use lower-grade silver alloy contacts that pit and weld prematurely, risking compressor damage.
• Install Difficulty: 2/5 — Shut off power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. Discharge any residual voltage and verify coil terminals are labeled C1/C2 before reinstalling.
• Warranty: 1-year OEM factory warranty. In stock and ships the same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PH15NA060000BAAA heat pump condensing units. Verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — contact us anytime.