OEM Carrier 3-Pole Contactor 25A 115V for Model 09DK020500

The Carrier HN53CB115 is the factory-specified OEM 3-pole contactor for the Carrier 09DK020500 commercial HVAC unit. The contactor is the high-voltage switching relay that closes the circuit to your compressor and fan motors every time your thermostat calls for cooling. When it fails — due to pitted contacts, a burned coil, or worn-out pull-in mechanism — your system may hum without starting, fail to energize at all, or trip the breaker on startup.

• Specs: 3-Pole | 25A FLA / 35A RES | 115V (120VAC) Coil | Direct factory replacement for Carrier 09DK020500 | Also replaces HN53TB115, HN52KC016, HN72AZ301
• OEM vs Generic: This is a genuine Carrier OEM part (Hartland Controls HCCY3XT01DT103), factory-matched for exact pull-in voltage, contact gap, and arc suppression. Aftermarket contactors often use inferior contact alloys that pit faster under high-inrush commercial loads, shortening equipment life.
• Install difficulty: 3/5 — Requires shutting off all power at the disconnect and verifying zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removal. On commercial 3-pole units, line-side wiring may involve 208–240V three-phase — always confirm with a licensed technician if unsure.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM drop-in for Carrier model 09DK020500 commercial HVAC equipment. Verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate before ordering. Our team is available to confirm fitment — reach out before you buy for peace of mind.