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A limit switch is an electro-mechanical device that is operated when an external force is applied to it. Limit switches are used in a system to detect when an external object is present or not. They can be used as part of a safety system or in a system to trigger actions.
In electrical engineering, a limit switch is a switch operated by the motion of a machine part or the presence of an object. A limit switch can be used for controlling machinery as part of a control system, as a safety interlock, or as a counter enumerating objects passing a point. [1]
Limit switches are electromechanical devices consisting of an actuator mechanically linked to an electrical switch. When an object contacts the actuator, the switch will operate causing an electrical connection to make or break.
A limit switch is an electro-mechanical device used to send an electrical signal based on a physical interaction. Limit Switches are used to detect the presence of objects, thus allowing the system to take desired action.
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What is a limit switch? Limit switches come in many forms and functions, but at their most basic definition, they are electromechanical switches that operate based on the movement or presence of an object. While it is not an electrical switch, your toilet float valve is similar to a limit switch.
Learn what a limit switch is and how it ensures operational safety by detecting object presence. Explore the working principle and construction of limit switches in our comprehensive guide.