OEM Carrier 1-Pole Contactor 24V 25A for Model PH13NAZ36000AAAA

This OEM Carrier contactor (part# HN51KB024) is the factory-specified replacement for the Carrier PH13NAZ36000AAAA split-system heat pump. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line-voltage power to the compressor and condenser fan motor. When the contactor fails — through pitted contacts, a welded armature, or a burned coil — the outdoor unit will not respond to a cooling or heating call, or conversely may run continuously without shutting off.

• Specs: 1-Pole (single pole) | 24V AC coil (50/60 Hz) | 25 FLA (Full Load Amps) | 35 RES | OEM part# HN51KB024 | Factory-matched fit and tolerances
• OEM vs Generic: This is a genuine Carrier OEM contactor, manufactured to exact factory specifications. Generic contactors may carry looser contact ratings and lower-quality coil windings, increasing the risk of premature failure during peak cooling season.
• Install difficulty: 2/5 — Shut off power at the disconnect box and wait for capacitors to discharge before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH13NAZ36000AAAA. Verify your unit's data plate lists part# HN51KB024 before ordering. Not sure? Our HVAC parts specialists verify fitment before you buy — contact us with your full model and serial number.