The Types and Functions of Mechanical Switches

The Types and Functions of Mechanical Switches

A switch is basically a simple device that can be used in order to interrupt the current flow. You can have it open or closed. It allows current flow when it is in the ON position. The off position, on the other hand, will cut the circuit. We will be covering the basics of mechanical switches in this article. Continue reading to learn more.
It is important to remember that there are two types: mechanical and electronic switches. To make a mechanical switch work, you must touch, move or press it. An electronic control, on the other hand, requires no physical contact to function. These devices use semiconductors like transmitters.

This article will be about mechanical switches. These switches are ubiquitous in the present and future. Let’s go into details.

Mechanical switches

These units can be classified based on their style of operation, number of poles, and throws. For differentiating purposes, many abbreviations can be used, such as DPDT and SPDT. Let’s learn more about these terms.

POLES: The number of circuits that the unit can handle. One bar can control one course, and three poles can manage three.

THROWS: One throw closes a circuit in one position. Double through, on the other hand, closes it in both places.


This switch is a primary type of mechanical on-off switch. This type of switch is intended to be used in a single circuit. These units are generally less expensive than those listed below.


This type of switch has three terminals. This type of switch features two output contacts and one input contact. It allows for one of and two ON positions.

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This unit has six terminals, four input contacts, and two output contacts. This switch is used to control the turning indicators in cars. The button turns the car indicators on the front and rear in one direction when it is in the UP position.

Latching vs. Momentary

This unit must be held or pressed to continue operation. Once the switch is released, the activity will cease. The buttons on your keyboard are an excellent example of such units. The electric control, on the other hand, continues to work until you press it again. An example of an electric switch is the one you use to turn on or off your lights at home.

This was a quick introduction to the different types of mechanical switches and their applications. These tiny switches are found in many devices, vehicles, circuit boards, and other things. These units can be purchased based on your budget, type of application, and purpose.


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