OHMITE's RES50R is a wirewound rheostat, a type of variable resistor commonly used in industrial control systems, laboratory equipment, and audio applications. These rheostats provide precise resistance adjustment and are known for their durability and ability to handle high power dissipation. Models H, J, G, K, L and N are UL and CSA listed. Consult factory for details on specific dimensions and performance characteristics. See Catalog #203 for complete details.