The limit switch is a switch that works by being pressed mechanically. Another name for this switch is a micro switch or basic switch. Electronic equipment that uses this type of limit switch is a 3-dimensional printer.
A limit switch is an electro-mechanical device consisting of an actuator mechanically connected to a set of contacts. When an object is in contact with the actuator, the limit switch will operate the contacts to connect or disconnect the electric current. Limit switches are used in a variety of applications and environments because of their toughness, simplicity, ease of installation and operational reliability.