Harmony push buttons and signaling devices

1. What are push buttons or switches?
A push button, often referred to as a button, is a basic switch mechanism used to control a component of a machine or an electrical system; they are usually designed with the help of solid materials such as metal or plastic. On the structural front, the surface of push buttons is often flat or contoured to suit the silhouette, finger or hand, allowing it to be depressed effortlessly and with ease.

2. What are the types of push buttons?
Push button switches are generally classified into two types: momentary, in which the action happens only when the actuator is pressed, and alternate action, in which the contacts are maintained until the actuator is depressed again. On the other hand, push button switches are offered in single and multiple pole configurations, but they are restricted to two throws.

3. How do push buttons work?
The majority of push button switches work in the same way. When you press down on the button or actuator, the internal spring and contacts are depressed, and the stable contacts at the bottom of the switch get connected. As a result of this action, when the electrical circuit opens and closes, the spring will retract after repeated application of pressure, changing the condition of the push button connection.

To activate a momentary switch, consistent pressure on the button must be applied. However, a latching switch stays in a stable condition until pressure is applied again to the actuator.