OEM Carrier 3-Pole Contactor 25A 115V (HN53CB115) for Model 09DK034600

This is the genuine OEM Carrier contactor (part number HN53CB115), factory-specified for the Carrier 09DK034600 commercial HVAC unit. The contactor is the high-voltage switching relay that completes the power circuit to the compressor and/or fan motors when your thermostat calls for cooling or heating. When this component fails, you'll commonly experience the unit not powering on at all, chattering or buzzing sounds from the control panel, or a system that trips the breaker repeatedly — all telltale signs of a worn or burned contactor.

• Specs: 3-Pole | 25 Amps FLA | 115V coil voltage | Heavy-duty definite-purpose design | Replaces HN53TB115 and HN52KC016
• OEM vs Generic: This OEM contactor is manufactured to Carrier's exact electrical tolerances, ensuring precise coil pull-in voltage and contact gap dimensions. Aftermarket contactors frequently use lower-grade silver-alloy contacts that pit and arc faster, shortening service life significantly.
• Install Difficulty: 3/5 — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire labels. Always photograph or label wiring before removal. Three poles means more terminals — take your time.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier 09DK034600 commercial HVAC system. Also supersedes legacy part numbers HN53TB115 and HN52KC016. Verify coil voltage (115V) and pole count (3-pole) against your unit's wiring diagram before ordering. Our team is available to confirm fitment — don't guess on a critical switching component.