OEM Carrier 3-Pole Contactor 25A 115V for Model 09DK044500 (HN53CB115)

The Carrier HN53CB115 is the factory OEM 3-pole definite-purpose contactor engineered for the Carrier 09DK044500 commercial HVAC unit. The contactor is the high-voltage switching relay responsible for routing power to the compressor and other load components on command from the 24V control circuit. When this part fails, the result is typically a unit that hums and refuses to start, intermittently drops out under load, or shows visible contact pitting and burning on inspection. Replacing it promptly prevents cascading damage to the compressor and control board.

• Specs: 3-Pole | 25A FLA | 115V coil voltage | 240/480/600V load-side rated | Definite Purpose design | Factory-matched contact material and spring tension
• OEM vs Generic: This is a genuine Carrier OEM contactor — not an aftermarket substitute. OEM contacts are rated to factory arc-interrupting tolerances, which means longer service life and reduced risk of contact welding under inrush current conditions common in commercial compressor circuits.
• Install difficulty: 3/5 — Requires full power lockout/tagout before any contact with the contactor. Tools needed: insulated screwdrivers (flathead and Phillips), needle-nose pliers, multimeter (for coil continuity check), and a camera or phone to document wiring before disconnecting. Label all wires prior to removal.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse. Also replaces legacy part numbers HN53TB115 and HN52KC016.

Compatibility: Engineered as a direct OEM replacement for the Carrier 09DK044500 commercial HVAC system. Always verify coil voltage and pole count on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.