OEM Carrier Contactor HN52TC040 for Model TCHC0250HEFMRAFA02

This is the factory-specified OEM contactor for the Carrier TCHC0250HEFMRAFA02 commercial HVAC unit. The contactor is a high-voltage relay that controls the flow of line-voltage power to the compressor and condenser fan motor. When your thermostat calls for cooling, the 24V control circuit energizes the contactor coil, pulling in the contacts and completing the high-voltage circuit. A failed contactor is one of the most common causes of an air conditioner that hums but won't start, trips a breaker repeatedly, or simply refuses to respond to thermostat commands — making this an essential service part to have on hand.

• Specs: OEM Part # HN52TC040 | 2-Pole configuration | 24V AC coil voltage | Factory-matched contact rating for reliable high-voltage switching
• OEM vs Generic: This OEM contactor meets Carrier's exact electrical specifications, including contact gap, coil pull-in voltage, and current rating. Generic alternatives frequently use lower-grade contact materials that pit and arc more rapidly, shortening service life and risking compressor damage.
• Install Difficulty: 2/5 — Always shut off power at both the disconnect and the breaker panel before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Replacement typically takes 20–30 minutes for an experienced technician.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day when ordered before 3 PM.

Compatibility: Designed as a direct OEM replacement for the Carrier TCHC0250HEFMRAFA02. Always verify your unit's data plate and existing contactor specifications (pole count, coil voltage, and amperage rating) before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order now and get same-day shipping from our warehouse.