OEM Carrier 2-Pole 40A 24V Contactor (HN52TC040) for Model TCHC0250HEFMRAF502

This factory-original Carrier contactor (OEM part number HN52TC040) is the direct OEM replacement for the Carrier TCHC0250HEFMRAF502 system. The contactor is the high-voltage relay that closes the circuit to your compressor and condenser fan motor each time your thermostat calls for cooling or heating. When it fails, your system may fail to start entirely, drop out mid-cycle, chatter loudly at the unit, or show burned or pitted contact points on inspection. Replacing a worn contactor promptly protects your compressor — the most expensive component in any system.

• Specs: 2-Pole | 40A FLA (Full Load Amps) | 24V 50/60Hz coil voltage | 240/277V load voltage | Factory-matched OEM tolerances
• OEM vs Generic: This is a genuine Carrier OEM contactor built to exact factory specifications. Generic contactors often use lower-grade contact alloys that pit and fail faster under the high-amperage loads of a compressor circuit, leading to repeat service calls.
• Install difficulty: 3/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any wires. Photograph all wiring before removal. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Note load and line wire positions carefully.
• Warranty: 1-year OEM factory warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed as the factory-specified contactor for the Carrier TCHC0250HEFMRAF502. Always verify your existing contactor's pole count, amp rating, and coil voltage against your unit's data plate before ordering. Our team is available to confirm fitment — order with confidence and get back to comfort fast.