It has a no-volt-release feature, but not overload protection. A no-volt-release switch with the added of a prominently positioned lock-on stop button. It is not suitable for use with additional switches and can only be used to control the power on and off. New/ Replacement NVR Switch for Workshop Power Tools and Fits Many Workshop Machines, Pedestal Drills, Linishers, Belt , and Bench Saws,etc. Switch disconnects in the event of power loss reducing dangerous and unexpected machine starts when power is restored., Manufacturer: PokFhgur