OEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C50AK02761
This is the factory OEM replacement contactor (part number HN53CB115) for the Carrier C4850C50AK02761 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat or control board and closes the circuit to energize the compressor and condenser fan motor. When the contactor fails, the most common symptoms include the system not turning on at all, the compressor humming without starting, or visible pitting and burning on the contactor points from normal arcing wear over time.
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Specs: 2-pole configuration | 24V AC coil voltage | Rated for high-amperage compressor loads | Direct OEM replacement for part number HN53CB115 — no modifications required
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OEM vs Generic: This OEM contactor is manufactured to Carrier's exact electrical specifications, including precise coil pull-in voltage and contact surface area. Generic contactors can exhibit early contact pitting, inconsistent pull-in, and reduced service life — especially in high-cycle applications like packaged rooftop units.
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Install Difficulty: 3/5 — Disconnect and lock out all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and insulated gloves. Photograph all wiring connections before removal. Line-voltage terminals must be handled with extreme care even after shutoff.
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Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.
Compatibility: Designed as a direct-fit replacement for the Carrier C4850C50AK02761 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 buy.