A Comparison of Push-Button Switches And Other Types Of Switches

We are all familiar with switches. We use different kinds of switches for different functions every day. But have you ever wondered about the mechanism of these switches and how they are different from one another? Among the different kinds of switches, one of the most commonly available ones is the push button switch. In this article, we are going to break down push button switches and look at their components, types, and functions, as well as what differentiates them from other types of switches.

Let us get to know all about push button switches.

How Does a Push Button Switch Work?

One of the primary questions regarding these switches is “how does a push button work?" Push buttons employ a simple, ingenious mechanism for working. They have a spring installed in them which is responsible for the ‘in’ and ‘out’ positions of the switch. The spring touches electrical wires during the ‘push’ or ‘on’ position. When the spring ceases to maintain contact with the wires, the switch is in the ‘off’ position.

What Are the Components of A Push Button Switch?

A push button switch consists of several key components that work together:

1. Button or Actuator: This is the part of the switch that the user physically presses.
2. Housing: The housing is the outer casing of the switch. It provides protection and support for internal components.
3. Contacts: Push button switches have electrical contacts inside them. These contacts are responsible for making or breaking the electrical connection when the button is pressed. There are usually two sets of contacts in a push button switch: normally open (NO) and normally closed (NC). In their default state, NO contacts are open, while NC contacts are closed. When the button is pressed, these states reverse.
4. Spring Mechanism: Most push button switches incorporate a spring mechanism. When the button is pressed, the spring compresses, and when the button is released, the spring returns the button to its original position. This action provides the “click” or “snap” feel that users associate with push button switches.
5. Terminal Connections: Push button switches have terminal connections that allow wires to be attached.
6. Mounting Mechanism: Depending on the application, push button switches may have various mounting mechanisms, such as threaded collars or snap-in mounts, to secure them to a panel or enclosure.

Different Types of Push Button Switches

There are many push button switch types for different applications.

1. Single-pole and double-pole switches

These are two types of push button switches. The single-pole switch is the most common type of push button switch. Its control device has a single input source and a single output source. It can perform only one function, i.e., it turns the appliance on or off.

A double-pole switch, on the other hand, is equipped to control two devices simultaneously. As the name suggests, double-pole switches are two-in-one switches that have the ability to run two discrete electrical appliances and circuits at the same time. For example, a double-pole switch can be used to control a fan and a light concurrently.

2. Momentary switch

If you are wondering what is a momentary push button switch, here is your answer. Very simply, a momentary push button switch is a switch that needs to be pressed continuously to remain on. When you stop pressing the switch, it turns off and the connection with the appliance is lost. Examples of momentary switches are those used in buzzers and doorbells.

3. Non-momentary switch

In a non-momentary push button switch, you have to push the switch twice to turn it on or off. Some appliances will require the button to be manually pulled out to turn it off. Certain radio switches and switches found in some TVs are examples of non-momentary push button switches.

How Are Push Button Switches Different from Other Types of Switches?

Push button switches are differentiated by their actuation method, primarily providing momentary contact and are often used for initiating actions or signals, whereas other switches like toggle, rocker, and rotary switches may offer latching options and are used to maintain specific states or settings. The choice of switch depends on the device it is connected to and the specific requirements of the application.

Read Also: A Complete Guide About Push Button Light Switches

Buy The Best Push Button Switches at the Schneider Electric eshop

Now that you have a comprehensive idea about the features, components, and differences among push button switches, you are well equipped to purchase the type of switch required for your application.

However, before making a purchase, do remember that safety should be a primary concern when buying switches. Faulty switches can lead to several hazards like device damage, fires, as well as electric shocks. Therefore, it is always wise to make your purchase from well-established brands like the Schneider Electric eShop. The brand has been a righthand name in the arena of electrical equipment for over two decades. Schneider Electric offers the best quality push button switches in the market at competitive prices. Visit Schneider Electric eShop for the best quality switches for varied applications!