OEM Carrier 2-Pole Contactor 40 Amp 24V Coil for Model TCHC0250HEFMRAF632

This is the genuine OEM replacement contactor for the Carrier TCHC0250HEFMRAF632 system, factory-specified under part number HN52TC040. The contactor is a high-voltage relay that sits in the electrical path between your disconnect and the compressor and condenser fan motor. When your thermostat calls for cooling, the 24V control circuit energizes the coil, which pulls in the contacts and allows line voltage to flow to the compressor. A failed contactor is one of the most common causes of an air conditioner that simply will not turn on — or one that hums briefly and then shuts back off. Pitted or burned contacts can also cause voltage drop, leading to compressor overheating and premature failure.

• Specs: 2-Pole | 40A FLA (Full Load Amps) | 24V AC 50/60Hz Coil | 240/277V | Direct OEM replacement for Carrier HN52TC040
• OEM vs Generic: This factory-matched OEM contactor meets Carrier's exact coil pull-in voltage and contact material specifications. Generic contactors often use lower-grade silver-alloy contacts that pit faster under load, shortening compressor life and increasing service callbacks.
• Install difficulty: 3/5 — Requires disconnecting power at the outdoor disconnect and verifying zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wiring before removing the old contactor. Line-voltage terminals carry lethal voltage — confirm power is off.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse on all in-stock orders placed before cutoff.

Compatibility: Direct OEM fit for Carrier model TCHC0250HEFMRAF632. Verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists are available to verify fitment before you buy — order with confidence and get back up and running fast.