401428-001 - Tweco 10K Ohm 2W Replacement Potentiometer

Technical Overview of the Tweco 401428-001 Potentiometer

The Tweco 401428-001 is a specialized electromechanical component designed for use in industrial welding power sources and wire feeders. This potentiometer features a resistance value of 10,000 Ohms (10kΩ) and a power dissipation rating of 2 Watts, making it robust enough for the control circuits found in heavy-duty welding equipment. It typically functions as a variable voltage divider, providing reference signals to control boards for parameters such as wire feed speed, voltage, or amperage.

Constructed to meet OEM specifications, this component ensures linearity and stability in signal output. The 2-watt rating indicates a higher thermal tolerance compared to standard consumer-grade 0.25W or 0.5W potentiometers, which is critical in environments where internal machine temperatures can rise during extended duty cycles. The unit is designed for panel mounting, featuring a threaded bushing and a standard shaft that accepts a variety of friction-fit or set-screw knobs.

Technicians replacing this part should verify the specific resistance and taper requirements of the host machine. As a genuine replacement part, the 401428-001 guarantees compatibility with the mounting dimensions and electrical characteristics of the original equipment, eliminating the need for circuit modification or physical adaptation of the front panel.