OEM Carrier Contactor 24V Coil 2-Pole for Model PY1PNA042080ACBA

This OEM contactor (part number HN51KB024) is the factory-specified replacement for the Carrier PY1PNA042080ACBA packaged unit. The contactor is a high-voltage relay that acts as the primary switch between your thermostat's 24V control signal and the high-voltage power delivered to the compressor and condenser fan motor. When the contactor fails — due to burned or pitted contacts, a stuck plunger, or a failed coil — the unit will not respond to a call for cooling, leaving the system completely dead or causing it to run continuously without cycling off.

• Specs: 2-pole design | 24V control coil | Factory-rated amperage for Carrier PY1PNA042080ACBA | OEM part number HN51KB024 | Direct drop-in replacement with no modifications required
• OEM vs Generic: OEM contactors feature factory-grade contact material and precise coil calibration. Generic alternatives often use lower-grade silver alloy contacts that pit and oxidize faster, leading to premature failure and potential compressor damage.
• Install Difficulty: 3/5 — Always shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and electrical tape. Photograph all wiring connections before disconnecting the old contactor to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty. Orders ship same business day from our warehouse when placed before cutoff.

Compatibility: Engineered specifically for the Carrier PY1PNA042080ACBA packaged unit. Always verify your existing contactor's pole configuration, coil voltage, and amperage rating against your unit's data plate before ordering. Our technical team is available to confirm fitment — contact us before you order if you have any questions.