OEM Carrier 3-Pole Contactor 115V 25A — HN53CB115 for Model 09DK054100

This genuine OEM 3-pole contactor is the factory-specified replacement for the Carrier 09DK054100 commercial HVAC unit. The contactor functions as the primary high-voltage switching relay, energizing the compressor and load circuits on a 24V control signal from the thermostat or control board. When a contactor fails — due to worn contacts, pitted surfaces, or coil burnout — the system will fail to start, lose one or more compressor stages, or exhibit erratic cycling behavior. Replacing with the correct OEM part ensures proper load handling and protects downstream components.

• Specs: 3-Pole | 25A FLA / 35A RES | 115V (120VAC) Coil | 240/480/600V Load-Side Rated | 150/125/100 LRA | Factory OEM Part# HN53CB115
• OEM vs Generic: This is a genuine Carrier factory part, manufactured to exact contact gap, spring tension, and coil impedance tolerances. Aftermarket contactors often use inferior contact alloys that arc and pit prematurely under high-inrush compressor loads, leading to premature failure.
• Install Difficulty: 3/5 — Always shut off power at the disconnect and verify zero voltage with a multimeter before proceeding. Label or photograph all wiring before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Coil voltage must be confirmed at 115V before installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model 09DK054100 commercial HVAC equipment. Also cross-references with superseded Carrier part numbers HN53TB115, HN52KC016, and HN72AZ301. Always verify pole count, amperage, and coil voltage against your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase.