Siemens 3SE31001A Limit Switch

Siemens 3SE3 100-1A Limit Switch delivers reliable end-of-travel position sensing for moving components in industrial automation. This metal-housed, snap-action switch from the 3SE3 series uses a plunger actuator (model dependent) and offers a screw-terminal electrical connection suitable for panel or machine mounting. With an industrial-grade enclosure and a -25°C to +70°C operating temperature range, it withstands demanding environments. It is commonly used in conveyors, machine tools, packaging equipment, and other automated machinery that require accurate position feedback, and it supports applications in material handling systems, manufacturing lines, safety interlock systems, and heavy-duty machinery. Common replacements include Siemens 3SE3 100-1B and 3SE3 100-1C, as well as Allen-Bradley 802T series limit switches.