The OHMITE RHL25R is a wirewound rheostat, a type of variable resistor commonly used in industrial applications for controlling electrical power. These rheostats are known for their durability and ability to handle high power loads. The RHL25R series is designed for applications requiring precise resistance adjustment and reliable performance. They are often used in motor speed control, lighting dimming, and other power regulation circuits. Consult factory for details on specific dimensions and configurations.