OEM Carrier 2-Pole Contactor 40 Amp 24V Coil for Model TCHC2550HECMRAY101

This is the genuine OEM Carrier contactor (part number HN52TC040), the factory-specified high-voltage relay for the TCHC2550HECMRAY101 heat pump system. The contactor acts as the primary switching device in your outdoor condenser unit, receiving a 24V signal from the thermostat control circuit and closing to allow line-voltage power to flow to the compressor and condenser fan motor. When it fails — due to worn contacts, a burned coil, or contact pitting — the system will either fail to start entirely, short-cycle, or run continuously without responding to thermostat commands.

• Specs: 2-Pole | 40 FLA (Full Load Amps) | 24V 50/60Hz coil | Direct drop-in OEM replacement for HN52TC040 | Factory-matched contact rating
• OEM vs Generic: OEM contactors from Carrier use factory-spec contact alloys and coil windings calibrated to your system's exact inrush current. Generic aftermarket contactors may carry looser amperage tolerances, leading to premature contact pitting and compressor damage over time.
• Install difficulty: 3/5 — Always disconnect power at the disconnect box and confirm voltage is absent with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire labels or a phone camera to document wiring positions before removal.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier TCHC2550HECMRAY101 heat pump condenser unit. Always verify the part number on your existing contactor's label before ordering to confirm a match. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back up fast with same-day shipping.