Belt conveyor safety cable pull switches are designed for providing a switching system to isolate the power to conveyor system and other equivalent process equipment in the emergency Condition. The cable pull switches are actuated by a plastic coated steel wire, which are placed along-side the onveyor. When you pull on the cable at any point, it will trip and automatically lock the switches, deenergizing the conveyor starter contactor. Each switch is bi-directional in operation and has two cable fitted to it from opposite directions terminated with a spring at the anchor points, Please see drawing the springs will operate the switch on cable breakage. After tripping the mechanical latch can be released only on the switch itself by the reset leve.