OEM Carrier 2-Pole Contactor HN52TC040 for Model GC048HERCDET1XX1
This is the factory OEM replacement contactor (part number HN52TC040) for the Carrier GC048HERCDET1XX1 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to worn contacts, pitting, or a burned coil — the system will either fail to start entirely, run continuously without cycling off, or exhibit intermittent cooling performance.
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Specs: 2-pole design | 24V AC coil voltage | Rated for high-amperage compressor loads | Direct OEM replacement for part number HN52TC040 | Factory-matched contact material and coil resistance
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OEM vs Generic: OEM contactors use precision-grade silver alloy contacts that resist pitting and arcing over thousands of switching cycles. Generic contactors often use lower-grade contact materials that degrade faster under the heavy inrush current of a 4-ton compressor load.
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Install difficulty: 2/5 — Disconnect and lock out power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line and load terminals must be correctly reassigned to the new unit.
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Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our climate-controlled parts warehouse.
Compatibility: Engineered specifically for the Carrier GC048HERCDET1XX1 packaged unit (4-ton, single-stage). Verify the OEM part number HN52TC040 on your unit's wiring diagram or control panel label before ordering. If you have any fitment questions, our HVAC parts specialists can confirm compatibility before your order ships.