OEM Carrier 2-Pole 40A 24V Contactor HN52TC040 for Model TCHC2550HECMRAY902

This is the genuine OEM Carrier contactor (part number HN52TC040), factory-specified for the Carrier TCHC2550HECMRAY902 heat pump system. The contactor is the high-voltage relay that bridges 240V power to the compressor and condenser fan motor every time your thermostat calls for cooling or heating. When the contactor fails, symptoms include the outdoor unit failing to energize, the compressor humming without starting, pitted or welded contact points, or the unit running continuously without cycling off.

• Specs: 2-Pole | 40A FLA (Full Load Amps) | 24V 50/60Hz coil voltage | 240/277V load voltage | Direct OEM replacement for Carrier part HN52TC040
• OEM vs Generic: This is a factory-genuine Carrier contactor built to exact coil resistance, contact gap, and amp rating specifications. Generic contactors often feature substandard contact materials that pit and weld prematurely, leading to compressor damage and premature failure.
• Install difficulty: 3/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, camera or phone (photograph existing wiring before removal). Note: contacts carry 240V — treat this repair with caution.
• Warranty: 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse — order before 3PM for guaranteed same-day dispatch.

Compatibility: Engineered as a direct drop-in replacement for the Carrier TCHC2550HECMRAY902 heat pump system. Always verify the pole count, amperage, and coil voltage on your unit's data plate or existing contactor label before ordering. Not sure it fits? Our HVAC parts team verifies fitment before you buy — contact us anytime.