OEM Carrier 1-Pole Contactor 25 Amp 24V Coil (HN51KB024) for Model PY1PNA036120ACBA

This is the genuine OEM Carrier contactor (part number HN51KB024), the factory-specified high-voltage switching relay for the Carrier PY1PNA036120ACBA condensing unit. The contactor is the electrical gatekeeper of your system — when the thermostat sends a 24V signal, the contactor closes its contacts to deliver line-voltage power to the compressor and/or condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that won't turn on, hums with no start, or trips the breaker repeatedly. Pitted, burned, or welded contacts are telltale signs it's time for a replacement.

• Specs: 1-Pole | 25 FLA (Full Load Amps) | 24V AC 50/60Hz Coil | Definite Purpose Contactor | Factory-matched OEM tolerance
• OEM vs Generic: This OEM contactor is manufactured to Carrier's exact contact gap, coil impedance, and pull-in voltage specifications. Aftermarket contactors often use thinner contact material and looser coil tolerances, leading to premature pitting, chatter, and compressor damage over time.
• Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before servicing. Photograph all wiring connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Swap wire-for-wire from old to new contactor. Verify 24V coil pull-in after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Directly fits Carrier model PY1PNA036120ACBA. Always confirm the part number on your unit's wiring diagram or data plate before ordering. Our team is available to verify fitment — reach out before you buy if you have any questions.