D4NH-8FAS

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Snap Action, Limit Switches are widely used in many kinds of machinery and control equipment. The scientific name is D4NH-8FAS. In order to further illustrate the application and working principle of the product, following contents will be discussed.

Application Field

The D4NH-8FAS limit switch is mainly used for the purpose of stopping a machine automatically after achieving a certain position. It can be also used for machines load system. For example, when the machine is running, it is necessary to detect precisely the position of the slider, feedback the position information and control the load running accurately from the control end. It can be used in many applications such as packaging machines, printing machines, moving machine, textile machinery, paper mills, etc.

Working Principle

The D4NH-8FAS limit switch mainly consists of two parts, a casing, and a lever. The lever moves with the movement of the machine or the movement of the load, as well as produces a moving action to two coaxial rotary cams. The inner cam presses down the actuator on the contact point. When the actuator is pressed, the contact point on the casing is switched by the pushing force. During the contact switch, the electrons flow through the contacts and the electrical signals are output.

The contact switching of the limit switch is reliable andrepeatable, as well as it can be used in high vibration environment. In addition to the contact switching, it can also set the multi-position function as its contact is a single pole double throw structure, which has the advantages of reliable operation, long service life, small size and so on.

To sum up, the D4NH-8FAS limit switch is widely used in machinery and control equipment due to its reliable switching, long service life, and highly accurate applications.

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