OEM Carrier 3-Pole Contactor 25A 115V — HN53CB115 for Model 09DK028500

The Carrier HN53CB115 is the factory-specified OEM 3-pole contactor for the Carrier 09DK028500 packaged/commercial HVAC unit. The contactor is the high-voltage switching relay that closes under command from the 24V control circuit, routing line voltage to the compressor and fan loads. When a contactor fails — through pitted contacts, coil burnout, or mechanical wear — the system will either fail to energize entirely, short-cycle unpredictably, or refuse to start the compressor even when the thermostat is calling for cooling or heating.

• Specs: 3-Pole | 25 Amp FLA | 115V AC coil | Definite-purpose design | Direct OEM replacement for Carrier 09DK028500 | Also supersedes HN53TB115 and HN52KC016
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM contactors are built to exact coil pull-in voltage tolerances and contact ratings. Generic aftermarket contactors often use thinner contact material, leading to premature pitting and nuisance callbacks — especially on commercial equipment.
• Install Difficulty: 3/5 — Line voltage is present at the contactor terminals. Always disconnect power at the disconnect box and verify with a multimeter before working. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removal. Swap one wire at a time to avoid miswiring.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model 09DK028500. Also supersedes legacy part numbers HN53TB115 and HN52KC016. Always verify pole count, amperage, and coil voltage on your unit's data plate or wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.