OEM Carrier Contactor 24V Coil 2-Pole for Model PY1PNA048100AFBA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier PY1PNA048100AFBA packaged unit. The contactor is a high-voltage relay that acts as the main electrical switch between your thermostat's 24V control signal and the 240V power feeding the compressor and condenser fan motor. When it fails, the system may refuse to energize at all, run continuously without shutting off, or exhibit visible pitting and burning on the contact points that can cause voltage drops and compressor damage over time.

• Specs: 24V AC coil voltage | 2-pole configuration | Factory-rated amperage matched to PY1PNA048100AFBA | OEM-spec contact material for maximum arc resistance
• OEM vs Generic: This is a genuine Carrier OEM contactor, manufactured to exact factory specifications. Generic contactors often use lower-grade contact alloys that pit and burn faster, shortening compressor life and risking premature system failure.
• Install difficulty: 2/5 — Always shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Engineered specifically for the Carrier PY1PNA048100AFBA packaged unit. Always verify the coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us anytime.