OEM Carrier 3-Pole Contactor 40A 208–240V for Model YAC48110YAC103AT

This OEM Carrier contactor is the factory-specified replacement for the Carrier YAC48110YAC103AT packaged HVAC unit. The contactor is the high-voltage relay that closes the power circuit to the compressor and condenser fan motor every time your thermostat calls for cooling. When it fails — due to pitted contacts, a welded coil, or burned terminals — the system either won't turn on at all, runs continuously without shutting off, or trips the breaker on startup. Replacing this contactor is one of the most common and cost-effective HVAC service repairs.

• Specs: 3-pole | 40A FLA / 160A LRA | Coil Voltage: 208–240V (HN53CD208) / 24V (HN53CD025) | 50/60 Hz | Screw terminal connections | Factory-matched Carrier OEM tolerances
• OEM vs Generic: OEM contactors use silver-alloy contacts rated for thousands of switching cycles. Generic aftermarket units frequently use inferior contact materials that arc, pit, and weld shut prematurely — risking compressor damage and callbacks.
• Install difficulty: 3/5 — Shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, camera/phone to photograph wiring before removal. Verify coil voltage on your unit's data plate matches the part number selected (208–240V = HN53CD208; 24V = HN53CD025).
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for Carrier model YAC48110YAC103AT. Two OEM part numbers cover this application — confirm coil voltage from your unit's data plate or wiring diagram before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.