Image is Representational - See Manufacturer Specs | Switch Limit N.O./N.C. SPDT Cross Roller Plunger Screw Mount 5A 11.8N Linear Cable Automotive Limit Switches are electromechanical devices that are used as a control system to make or break electrical connections. They are generally used to control machinery in industrial applications. The SL1 series compact limit switches are sealed, sensitive, and have a long life. The compact size makes them suitable for the total miniaturization of machinery or equipment. These limit switches are mostly used in robotics, light material handling, machine tools, automotive factory floor, and electronic assembly equipment.SL1-D Limit Switch from Honeywell offers wide product selection to suit many applications. This Honeywell switch comes with rugged zinc die-cast housing material and snap-in terminal enclosures which makes mounting and wiring easy.