The OHMITE RNS200E is a wirewound rheostat, a type of variable resistor commonly used in industrial and electronic applications. These rheostats provide a means to precisely control voltage or current in circuits. The RNS200E series is characterized by its robust construction, offering reliable performance and durability in demanding environments. They are suitable for applications such as motor speed control, volume adjustment, and laboratory equipment. Consult catalog #203 for complete details and specifications.