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Snap Action, Limit Switches

A snap action, limit switch is an electrical control device designed to detect, limit, or regulate the range or movement of objects. They are often used for raising and lowering materials, adjusting flow, and controlling temperatures.

A snap action limit switch is usually constructed from two parts, a switch body and an actuator. The switch body contains all of the necessary electrical components to monitor and control the switch operation, while the actuator is a moving part that senses the forces at work. When the actuator reaches a certain point, the switch will automatically switch its state in response, thus allowing the switch to be used in a wide variety of applications.

Applications

Snap action, limit switches have a wide range of applications in a variety of industries. They are commonly used in industrial automation processes, such as controlling the operation of motors, pumps, valves, and other moving parts. They are also used in the operation of elevators, conveyer belts, and most other mechanical systems that require precise control.

Snap action switches are also commonly used in medical and laboratory equipment, military systems, and security systems. They are frequently used to detect when a patient has reached a predetermined heart rate or breathing rate, as well as to activate alarms or perform other functions.

Working Principle

The working principle of a snap action, limit switch is relatively simple. When the actuator senses a specific force, it causes the switch to change its state. This change in state is then monitored by the switch body, which then triggers the operation to either begin or end. When the force is removed, the switch returns to its original state.

The switch body is typically made out of a combination of plastic, metal, ceramic, or other materials that are able to withstand the force of the switch\'s movements. The actuator is usually a small lever or contact device, which is connected to the switch body and will move when force is applied.

Snap action, limit switches are designed for reliable and precise operation. They are relatively simple devices and can be used in a wide variety of applications. With their relatively low cost and ease of use, they are a popular choice for many industrial and commercial applications.