OEM Carrier 3-Pole Contactor 24V 40A for Model YAC48110YAC204AC

This OEM 3-pole contactor is the factory-specified replacement for the Carrier YAC48110YAC204AC packaged HVAC unit. The contactor acts as the high-voltage relay that closes when the thermostat calls for cooling or heating, sending 240V power to the compressor and fan motors. When the contactor fails — due to pitted contacts, a burned coil, or contact welding — the unit will fail to energize, hum without starting, or refuse to shut off. Replacing a worn contactor is one of the most impactful and cost-effective repairs you can make on a packaged unit.

• Specs: 24V AC coil | 3-pole configuration | 40A rated | Max 600V load side | Screw-mount terminal design | OEM Part Numbers: HN53CD024 (primary) / HN53HF212 (alternate)
• OEM vs Generic: This is a genuine Carrier factory-authorized contactor manufactured to exact contact gap and coil pull-in tolerances. Aftermarket contactors frequently use lower-grade silver alloy contacts that pit faster under high cycling loads, leading to premature repeat failures.
• Install difficulty: 3/5 — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, camera or phone to photograph existing wiring before removal. Transfer one wire at a time to avoid miswiring.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Direct OEM replacement for Carrier model YAC48110YAC204AC. Cross-references OEM part numbers HN53CD024 and HN53HF212. Verify pole count (3-pole), coil voltage (24V), and amperage (40A) on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — contact us any time.