Limit switches are electro-mechanical contact sensing devices used to detect the presence or position of objects in industrial applications. As a target makes contact with the limit switch operator, it eventually moves the actuator to the limit,where the electrical contacts change state. Through this mechanical action, electrical contacts are either opened (in a normally closed—NC—circuit) or closed (in a normally open—NO—circuit), preventing the target from moving past a predetermined point. GE produced a number of limit switches to suit the needs of a variety of applications.
- Materials handling
- Industrial doors and lift equipment
- Assembly equipment
- Power generation
- Pulp and paper mills