83279001

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Snap Action Limit Switches

Snap Action Limit Switches are used to detect the position of moving objects or provide an alarm when the end of a machine’s physical range is reached. They are generally used in areas where the degree of accuracy and repeatability is high. The performance of a limit switch is vitally important to a number of applications and there are many different types available.

The most popular version of the snap action limit switch is the electro-mechanical type. It is a complex machine consisting of numerous components that interact to open the switch when the predetermined limits are exceeded. The use of a combination of mechanical and electrical components ensures that the switch can accurately detect extreme conditions.

83279001 Application Field

Snap Action Limit Switches can be used in a wide variety of applications. These range from detecting a change in position of a mechanical object, to monitoring the operation of a machine, or defining a boundary and limit for a piece of equipment. They are also commonly used in residential security systems, and in automotive and industrial applications.

In the home, for example, Snap Action Limit Switches can be used to detect the presence or absence of an object, such as a door or window. They can also be used to detect the opening or closing of a door or window, and indicate when it has reached its limit. In industrial settings, they are commonly used to detect the movement of a machine, and to send an alarm if its physical limit is exceeded.

83279001 Working Principle

Snap Action Limit Switches operate on the principle of "over-center" action. When a force is applied in either direction on the internal spring-loaded arm, it forces the arm to move and then "clicks" in the opposite position. This movement can be used to detect a change in position or the exceeding of a physical limit.

Electromechanical Snap Action Limit Switches are comprised of several key components: an armature, contact lever and plunger. When pressure is applied to the armature, the lever activates the plunger, forcing it to move, which in turn triggers the switch to open. This allows an electric signal to be generated when a movement occurs and a switch is operated.

Snap Action Limit Switches are very popular due to their superior performance and reliability. They are well constructed, long lasting, and very accurate in detecting a change in physical structure or position. Additionally, they are relatively inexpensive and easy to install.

Conclusion

Snap Action Limit Switches provide reliable detection and operation of mechanical parts. Their ability to detect extreme conditions and send an alarm when a boundary or limit is reached makes them ideal for many residential and industrial applications. Additionally, they are relatively inexpensive and easy to install, making them a popular choice.

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