9-7687 - Thermal Dynamics 220V Replacement Cooling Fan 115 CFM (Sunon DP200A 2)

Technical Overview of the Thermal Dynamics 9-7687 Cooling Fan

The Thermal Dynamics 9-7687 is a specialized replacement cooling fan designed for specific Thermal Dynamics plasma cutting systems and welding power sources. This unit is an AC axial fan operating at 220V, a critical specification for industrial equipment that runs on higher voltage mains. The fan is identified as a Sunon DP200A 2, a robust model known for its reliability in industrial applications. Sunon fans are widely utilized in power electronics due to their consistent performance and longevity.

Thermal management is paramount in welding and cutting equipment. The 9-7687 delivers an airflow of 115 CFM (Cubic Feet per Minute). This high volume of air movement is essential for dissipating the significant heat generated by transformers, rectifiers, and IGBTs during the welding or cutting process. By maintaining optimal internal temperatures, this fan ensures that the equipment can operate at its rated duty cycle without triggering thermal overload protection mechanisms.

As a genuine OEM part, this fan ensures seamless integration with the machine's existing wiring harness and mounting points. The impedance-protected motor design common in the DP200A series adds a layer of safety, preventing motor burnout in the event of a locked rotor. Technicians repairing Thermal Dynamics equipment should verify the voltage requirements of the specific machine model, as using a 220V fan in a 115V circuit will result in underperformance, and vice versa could cause immediate failure. This component is supplied as a single unit.

Key Technical Specifications:

• Input Voltage: 220/240V AC
• Airflow: 115 CFM
• OEM Manufacturer: Sunon
• Model Number: DP200A 2
• Application: Forced air cooling for power electronics