OEM Carrier 1-Pole Contactor 25A 24V Coil for Model PY3GNA036060NA (HN51KB024)

This is the genuine OEM replacement contactor for the Carrier PY3GNA036060NA condensing unit. The contactor is the high-voltage relay that closes the circuit to power your compressor and condenser fan motor every time the thermostat calls for cooling. When it fails, the most common symptoms are a completely unresponsive outdoor unit, a system that hums but won't start, or contacts that have welded shut — causing the compressor to run continuously even when the thermostat is satisfied.

• Specs: 1 Pole (Single Pole) | 25 FLA (Full Load Amps) / 150 LRA (Locked Rotor Amps) | 24V AC Coil (50/60 Hz) | 240/277V line voltage | 1/4" quick-connect coil terminals | Normally open contacts
• OEM vs Generic: This OEM Carrier contactor is factory-spec matched to the PY3GNA036060NA. Generic contactors may differ in terminal placement and contact material grade, increasing the risk of premature pitting, arcing, and early failure — especially during peak summer load cycles.
• Install difficulty: 2/5 — Disconnect all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Always photograph existing wiring before disconnecting terminals. Swap wires one at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PY3GNA036060NA. Also cross-references to Bryant and Payne units specifying part number HN51KB024. Always verify your unit's wiring diagram and data plate before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and get your system back up and running today.