OEM Carrier 3-Pole Contactor 25A 115V for Model 09DK020100 (HN53CB115)

The Carrier HN53CB115 is the factory-specified 3-pole contactor for the Carrier 09DK020100 commercial HVAC unit. The contactor is the high-voltage relay that closes the circuit to energize the compressor and associated loads whenever the control board sends a 24V signal. When the contactor fails — due to pitted contacts, a welded set of poles, or a burned coil — the unit will either fail to start entirely, trip on a fault, or run continuously without responding to thermostat commands. Replacing this OEM part restores safe, factory-rated switching performance.

• Specs: 3-Pole | 25A FLA | 115V AC Coil | 240/480/600V Load Side | 150/125/100A LRA | Direct OEM replacement for HN53CB115
• OEM vs Generic: This is a genuine Carrier OEM contactor manufactured to exact factory coil-pull-in voltage and contact gap specifications. Generic contactors may fall outside tolerance, causing slow pull-in, contact bounce, and accelerated wear on compressor windings.
• Install difficulty: 3/5 — Requires disconnecting main power and verifying zero voltage with a multimeter before handling. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wire labels. Photograph all wiring before disconnecting. Recommended for qualified technicians or experienced DIYers.
• Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model 09DK020100 commercial HVAC equipment. Also supersedes legacy part numbers HN53TB115 and HN52KC016. Confirm coil voltage (115V) and pole count (3-pole) against your unit's data plate before ordering. Our fitment team is available to verify compatibility before you buy.