The RJS8K0E rheostat is manufactured by Ohmite and is a 50W, standard shaft model with 8K ohms of resistance and a 750V rating. This rheostat is designed for applications that require adjustable resistance, such as for controlling current or voltage. This type of adjustable resistor is especially useful in various circuits and devices, such as motor speed controllers, light dimmers, and heater Controls. The standard shaft version provides a convenient means of adjusting the resistance by turning a dial or knob.