OEM Carrier 1-Pole 40 Amp Contactor HN51JD026 for Model PH13NB060000AAAA

This OEM contactor is the factory-specified replacement for the Carrier PH13NB060000AAAA heat pump system. The contactor acts as the high-voltage switching relay that connects line power to the compressor and/or condenser fan motor whenever the thermostat calls for cooling or heating. When the contactor fails, the most common symptoms are an AC or heat pump that simply won't turn on, a unit that hums but never starts, or visible pitting and burning on the contact faces. Replacing it with the correct OEM part restores factory-rated switching performance and protects your compressor from voltage irregularities.

• Specs: 1 Pole (SPST) | 40 Amp FLA | 24V AC Coil | 50/60 Hz | Integrated shunt | Factory part number HN51JD026
• OEM vs Generic: This is the genuine Carrier OEM contactor — manufactured to exact factory contact gap, coil pull-in voltage, and arc suppression specs. Generic contactors may use lower-grade contact materials that pit faster under the high-inrush loads of a 5-ton compressor, shortening system life.
• Install difficulty: 2/5 — Always shut off power at the disconnect box and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wire connections before removal. Wire-for-wire swap takes most homeowners under 30 minutes.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Direct OEM replacement for Carrier model PH13NB060000AAAA heat pump systems. The PH13NB060000AAAA is a 5-ton (060) R-410A single-stage packaged or split heat pump unit. Always verify the part number on your existing contactor's label and confirm coil voltage and amperage on the unit's data plate before ordering. Our fitment team is available to confirm compatibility — contact us before you order if you have any questions.