OEM Carrier 2-Pole Contactor HN52TC040 for Model LC748LCCSRLYX2600

This OEM contactor (part number HN52TC040) is the factory-specified high-voltage relay for the Carrier LC748LCCSRLYX2600 condensing unit. The contactor acts as the primary electrical switch that allows 240V power to flow to the compressor and condenser fan motor whenever the thermostat calls for cooling. When the contactor fails — due to worn or pitted contacts, a stuck plunger, or a burned coil — the system will either fail to start entirely, run continuously without cycling off, or short-cycle and trip the breaker. Replacing a failed contactor is one of the most common and cost-effective AC repairs available.

• Specs: 2-pole configuration | 24V coil voltage | 40-amp load rating | Factory-matched contact material for reduced arcing and extended service life
• OEM vs Generic: OEM Carrier contactors (HN52TC040) meet exact factory contact gap, spring tension, and coil impedance specs. Generic contactors often use lower-grade contact alloys that pit faster under high-cycle loads, leading to premature failure within one to two seasons.
• Install difficulty: 2/5 — Always shut off power at both the disconnect box and breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, and a multimeter to verify the coil is de-energized. Photograph all wiring connections before removing the old contactor.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before 3 PM EST ship the same business day from our stocked warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier LC748LCCSRLYX2600 condensing unit. Always confirm your unit's nameplate voltage and amperage ratings match before installation. If you have any questions about fitment, our HVAC parts specialists are available to verify compatibility before you order — ensuring you get the right part the first time.