A C-shaped ceramic resister is wound with copper or chromium-alloy wire as a resistance element.
Except for the slide contact surface, the entire component is coated with a high-temperature, non-flammable resin.
After cooling and drying, insulation is applied through a high-temperature process.
Then, a centered rotating adjuster component is installed, which slides along the resistance element and varies the resistance to the desired value.
The scope of the application includes educational modeling, load simulations, industrial machinery RPM adjustment, voltage and current adjustment, instruments, and automated control installations.