OEM Carrier 2-Pole Contactor 35A 208/240V for Model 09DE164C900

This OEM Carrier contactor (part number HN52KC053) is the factory-specified replacement for the Carrier 09DE164C900. The contactor is a high-voltage relay that switches power to your compressor and condenser fan motor every time the thermostat calls for cooling. Over time, the contacts pit and burn from repeated electrical arcing, causing symptoms like the outdoor unit failing to energize, buzzing or chattering sounds from the disconnect box, or the system running continuously without cycling off.

• Specs: 2-pole | 35 Amp | 208/240V load voltage | 24V control coil | Heavy-duty contact construction rated for high-cycle HVAC applications
• OEM vs Generic: This is a genuine Carrier OEM part built to exact factory specifications. Generic contactors often use lighter-gauge contact material that pits faster, leading to premature failure and potential compressor damage — especially in high-cycle climates.
• Install Difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model 09DE164C900. Always verify amperage, pole count, and coil voltage against your existing contactor's data label before installing. Need fitment confirmation? Our HVAC parts specialists are ready to verify compatibility before you order — get back up and running fast with same-day shipping.