OEM Carrier Contactor HN52TC040 for Model GC048HSRNDET1XX1

This is the factory OEM replacement contactor (part number HN52TC040) for the Carrier GC048HSRNDET1XX1 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat. When the thermostat calls for cooling, the contactor closes its contacts to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons a system runs continuously, refuses to start, or trips the breaker — symptoms include burned or pitted contact points, a stuck or chattering coil, and a compressor that hums but never starts.

• Specs: OEM Part Number HN52TC040 | 2-pole design | 24V coil voltage | Factory-rated amperage matched to GC048HSRNDET1XX1 specifications | Replaces worn, pitted, or welded contacts
• OEM vs Generic: This OEM contactor is built to exact Carrier factory specifications, including coil pull-in voltage tolerances and contact plating thickness. Generic contactors often use thinner contact material that pits faster under high inrush current, leading to premature failure — especially in high-cycle summer conditions.
• Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wire connections before removing the old contactor. Wires transfer one-for-one to the same terminals on the replacement.
• Warranty: 1-year OEM factory warranty. Orders placed by 3PM ship same business day from our climate-controlled parts warehouse.

Compatibility: Designed specifically for the Carrier GC048HSRNDET1XX1 packaged unit. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — just reach out before you order. In stock and ready to ship today.