The OHMITE RHS5K0 is a wirewound rheostat, a type of potentiometer, designed for applications requiring adjustable resistance. These devices are electro-mechanical and subject to wear, indicating a finite lifespan. They are commonly used in industrial control systems, laboratory equipment, and other applications where precise resistance adjustment is needed. Models H, J, K, L, and N are UL and CSA listed. All rheostats have a 10% tolerance.