Crouse-Hinds series AFU and AFUX explosionproof conveyor belt control switches provide an emergency or normal "STOP" switch for conveyor lines, cranes, unloaders and bulk handling systems. They are used in the control circuit of magnetic motor starters to shut down motor-driven conveyors or other machinery when switch is actuated. Common applications include steel mills, mining, ore and coal handling operations, automotive and assembly lines, warehouses and loading docks.