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Snap action, limit switches are versatile and reliable aparatus used to detect the presence of an object and can be found in a wide array of applications. A snap-action switch, also known as a micro switch, is a switch that is activated when some amount of force is applied to it beyond a certain threshold level. In this article we will discuss how it works and its applications.

A snap action switch is typically activated by physical means such as a lever, a roller, a rocker arm, or a plunger. The switch consists of three main parts – an actuator, a set of electrical contacts, and a spring. When the actuator is moved to a predetermined position, friction between the actuator and the contacts generates a force that is transferred to the contacts, which causes them to move. This motion activates the electrical circuit connected to the contacts and the switch is triggered.

Because of the precision and reliability of the snap action switch, it has been widely employed in many practical applications. For example, it is commonly used in commercial appliances because they provide a reliable and safe way to activate or deactivate the device. They are also frequently used in security systems as well as in automotive and aerospace industries. Additionally, they are used in home automation systems and robotics to detect the presence of an object and initiate a corresponding action. In addition to these applications, snap action limit switches are also used in automation and process control systems, manufacturing assembly lines, and other industrial production applications.

The two main types of snap action switches are a normally open (NO) switch and a normally closed (NC) switch. A NO switch means that it is closed when the actuator is in its rest position and moves to an open position when the actuator is moved. On the other hand, a NC switch means that it is open when the actuator is in its rest position and is only closed when the actuator is moved. Depending on the application, one of these two types of switches may be preferable.

In addition to their basic functionality, snap action limit switches can also be used to limit the motion of an actuator. By strategically positioning a snap action switch at the end of an actuator\'s range of motion, this can be used to ensure that the actuator does not accidentally move beyond its intended limit. This provides a degree of protection to the mechanical components of the system and can help prevent damage and costly repairs.

Snap action, limit switches are extremely versatile and reliable and can be used in a wide range of applications from commercial appliances to automation and process control systems. As a result, the use of these switches is continually on the rise. With their reliability and versatility, it\'s no wonder why they are such a popular choice in many different industries.

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