The T5B-3-8401/I4 is a three-position 63A electrical reversing cam switch manufactured by Eaton. It features a 1-0-2 contact configuration with three poles and an integral switch. The switch has the ability to reverse the line of electric current, allowing the left and right devices, motors, or solenoids to operate in either direction. This makes it suitable for a wide range of industrial applications, including controlling power flow in motor systems, controlling motor speed, and limiting excessive current through the system.