OEM Carrier 1-Pole 40 Amp Contactor (HN51JD026) for Model PH14NA060000BBAA

This OEM Carrier contactor (part number HN51JD026) is the factory-specified replacement for the Carrier PH14NA060000BBAA heat pump. The contactor is a high-voltage relay that opens and closes the circuit to the compressor on command from the 24V thermostat control signal. When the contactor fails, the system may hum without starting, the compressor may fail to energize at all, or the unit may short-cycle — leaving you with no cooling or heating and a potentially damaged compressor from repeated failed start attempts.

• Specs: 1-Pole (SPST) | 40 Amp FLA | 24V AC Coil | 50/60 Hz | Includes integrated shunt | Factory-matched contact rating
• OEM vs Generic: This OEM unit uses factory-spec contact materials and coil windings, ensuring reliable pull-in at low 24V signal voltages. Generic contactors frequently use undersized coils that stick or fail to close fully, causing arcing, pitting, and premature compressor wear.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Swap line, load, and coil 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: Designed and factory-matched for the Carrier PH14NA060000BBAA 5-ton heat pump. Verify your existing contactor's pole count (1-pole), amp rating (40A), and coil voltage (24V) against your unit's data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — just reach out.