OEM Carrier 1-Pole 40 Amp 24V Contactor HN51JD026 for Model PH16NA06000GBAAA

This OEM single-pole contactor is the factory-specified replacement part for the Carrier PH16NA06000GBAAA heat pump system. The contactor acts as the high-voltage relay that closes the circuit to the compressor and/or condenser fan motor when the 24V control board sends a call for cooling or heating. When the contactor fails — due to burned or pitted contacts, a stuck plunger, or a failed coil — the system will appear to power on but the outdoor unit will not energize, leaving you with no cooling or heating output.

• Specs: 1 Pole (SPST) | 40 Amp FLA | 24V AC Coil | 50/60 Hz rated | Includes integrated shunt | Factory OEM tolerance and contact material
• OEM vs Generic: This is a genuine Carrier OEM part (HN51JD026), manufactured to exact factory specifications. Generic contactors may use lower-grade contact materials that pit faster under high-cycle loads, leading to premature failure and potential compressor damage.
• Install Difficulty: 2/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Swap wires one at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH16NA06000GBAAA heat pump condensing units. Always verify your existing contactor's pole count, amperage, and coil voltage against your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get your system back up and running fast.