OEM Carrier Contactor HN52TC040 for Model TCHC0250HEFMRAF631

This OEM contactor (part# HN52TC040) is the factory-specified high-voltage switching relay for the Carrier TCHC0250HEFMRAF631 condensing unit. The contactor acts as the primary power switch between your 240V line voltage and the compressor and condenser fan motor — energized by a 24V signal from your thermostat. When the contactor fails, the most common symptoms include an AC unit that won't turn on at all, a buzzing/chattering noise from the condenser cabinet, or visible pitting and burning on the contact points.

• Specs: 2-Pole design | 24V coil voltage | Rated for high-amperage compressor and fan motor loads | Direct OEM replacement — factory-matched fit and electrical rating for TCHC0250HEFMRAF631
• OEM vs Generic: This is a genuine Carrier OEM contactor (HN52TC040). OEM contactors feature precision-machined contact points and coil windings built to exact factory tolerances, unlike generic alternatives that may use lower-grade contact materials prone to premature pitting and coil burnout.
• Install difficulty: 3/5 — Always shut off power at both the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a phone or camera to photograph all wiring before disconnecting. Label each wire clearly — reversing line and load terminals is a common and costly mistake.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day when ordered before cutoff.

Compatibility: Engineered as a direct drop-in replacement for the Carrier model TCHC0250HEFMRAF631 condensing unit. Always verify your unit's data plate voltage and amperage ratings match before installation. Our technical team is available to confirm fitment — reach out before you order if you have any doubts.