OEM Carrier Contactor HN52TC040 for Model TCHC2550HECMRAP102

This OEM contactor (part number HN52TC040) is the factory-specified high-voltage relay for the Carrier TCHC2550HECMRAP102 condensing unit. The contactor acts as the electrical switch that closes the 240V power circuit to the compressor and condenser fan motor each time your thermostat calls for cooling. When it fails — due to pitted contacts, a stuck plunger, or a burned coil — your outdoor unit will simply not energize, leaving you with warm air and a running blower indoors.

• Specs: 2-pole design | 24V AC control coil | 40A rated contacts | Direct OEM replacement — factory-matched fit, form, and function for the Carrier TCHC2550HECMRAP102
• OEM vs Generic: This listing is the genuine OEM part. OEM contactors use silver-alloy contact tips rated to factory cycle specs, resisting pitting and arcing far longer than generic equivalents with lower-grade materials.
• Install Difficulty: 3/5 — Always disconnect power at the breaker and wait for capacitors to discharge before starting. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Transfer wires one at a time to the new unit to avoid miswiring.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Engineered for Carrier model TCHC2550HECMRAP102. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — contact us before you buy for total peace of mind. Order today and get same-day shipping straight to your door.