The OHMITE RCL500E is a wirewound rheostat, a type of variable resistor used for controlling electrical power. These rheostats are designed for industrial applications requiring precise and reliable control. They feature a robust construction and are suitable for a wide range of electrical systems. Models H, J, G, K, L and RCL500E are subject to mechanical wear and, therefore, have a finite life. Refer to catalog #203 for complete specifications and ordering information.