The OHMITE RJS125E is a wirewound rheostat, a type of variable resistor used for controlling electrical power. It's designed for industrial applications requiring precise and reliable resistance adjustment. The rheostat features a robust construction and a wide resistance range, making it suitable for diverse applications such as motor speed control, lighting dimming, and volume adjustment. Its wirewound design ensures stability and low temperature coefficient, contributing to consistent performance over time. Consult factory for details on specific dimensions and mounting options.