OEM Carrier 2-Pole 40A 24V Contactor HN52TC040 for Model TCHC0250HEFMRAF112

This is the genuine OEM Carrier contactor (part number HN52TC040), the factory-specified high-voltage relay for the Carrier TCHC0250HEFMRAF112 system. The contactor acts as the primary electrical switch that allows 240V power to flow to the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — whether from pitted contacts, a burned coil, or a stuck plunger — the system will either fail to start entirely, short-cycle, or run continuously without shutting off. It is one of the most commonly replaced components in any split-system condenser.

• Specs: 2-Pole | 40A FLA (Full Load Amperage) | 24V 50/60Hz coil | 240/277V load voltage | Direct OEM replacement for Carrier part HN52TC040
• OEM vs Generic: This OEM contactor is manufactured to exact Carrier factory tolerances for coil resistance, contact gap, and arc suppression. Generic contactors may use inferior contact materials that pit and burn faster under high cycling loads, leading to premature failure.
• Install difficulty: 2/5 — Always shut off power at the disconnect box and wait 5 minutes before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a multimeter to confirm coil voltage. Photograph all wiring before disconnecting. The contactor snaps into the existing bracket in minutes.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct drop-in replacement for the Carrier TCHC0250HEFMRAF112. Verify your existing contactor matches 2-pole, 40A, and 24V coil specifications from the unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — reach out before your order ships today.