OEM Carrier 3-Pole Contactor 40A 208/240V for Model YAC48110YACX304AC

This OEM Carrier contactor (part number HN53CD208) is the factory-specified high-voltage switching relay for the Carrier YAC48110YACX304AC packaged unit. The contactor acts as the main power bridge between the 24V control circuit and the high-voltage compressor and fan loads — when the thermostat calls for cooling, the contactor closes to energize the system. A failed contactor is one of the most common causes of a non-responsive AC unit: symptoms include the system not energizing at all, chattering or buzzing at the contactor, intermittent tripping, or burned/pitted contacts preventing reliable power transfer.

• Specs: 3-Pole | 40A FLA / 160A LRA | 208–240V Coil | 50/60 Hz | Screw terminal connection | 208–600 VAC switching voltage
• OEM vs Generic: This OEM Carrier HN53CD208 is manufactured to exact factory tolerances, ensuring proper coil pull-in voltage and contact rating. Generic contactors often use lower-grade contact alloys that pit and weld prematurely under high inrush current from compressor startup.
• Install difficulty: 3/5 — Requires shutting off all power at the disconnect and breaker panel. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and insulated gloves. Always photograph all wiring before disconnecting. Verify 0V at the contactor terminals before handling.
• Warranty: 1-year OEM factory warranty included. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed as the OEM replacement contactor for the Carrier YAC48110YACX304AC packaged unit. Verify your unit's data plate shows a 3-pole, 40A, 208/240V contactor specification before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.