What is the difference between ordinary limit switches and ...

Limit switch:

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There is mainly a stopper pressing the contact of the limit switch, then the normally open in the limit switch becomes normally closed, and the normally closed becomes normally open. This kind of switch is generally used in the limit of two extremes of a moving object, because The mechanical failure of this kind of switch is relatively low, and the requirements for the use environment are not high, so it is widely used. Inductive limit switch, generally through the object approaching the limit switch, the normally open becomes normally closed, and the normally closed becomes normally open. However, the environment used by this switch is a bit more demanding, so it is not widely used as a mechanical limit switch. If I remember correctly, inductive limit switches are generally used to detect displacement or pressure on cylinders and other components.

Safety limit switch:

 A switch means on and off, and it refers to an electronic component that can open a circuit, interrupt current, or cause it to flow to other circuits. The principle of the switch is that the "closed" of the contact means that the electronic contact is conducting, allowing current to flow; "open" means that the electronic contact is not conducting to form an open circuit, which does not allow current to flow. Ordinary switches are widely used in South China and North China. The most common switches of Shanghai Jiafeng Electronics are electromechanical devices that are operated by people, which have one or several electronic contacts.

The two are often just different names for the same switch, and there is no clear distinction. Generally only slightly different in specific applications, but not strict.

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A limit switch generally refers to a switch that is installed at the terminal (start or end point of travel).

Two safety limit switches are used in parallel or in series to prevent limit failure and accidents.

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