Push buttons come in various types and configurations, but broadly speaking, they can be categorized into two main types based on their electrical contacts and functions:
Normally Open (NO) Push Button:
In a normally open push button, the circuit is open (no electrical continuity) when the button is at rest or not pressed.
When the button is pressed, it closes the circuit, allowing current to flow through the contacts.
It is often used to start a process or activate a device when the button is pressed.
Normally Closed (NC) Push Button:
In a normally closed push button, the circuit is closed (electrically connected) when the button is at rest or not pressed.
When the button is pressed, it opens the circuit, interrupting the flow of current through the contacts.
It is commonly used in applications where a circuit needs to be interrupted or a process needs to be stopped when the button is pressed.
These two types of push buttons are fundamental components in control systems and are often used in combination to create specific functionalities. For example, a start button might be a normally open type, and a stop button might be a normally closed type to control the operation of a machine or a system.
It’s important to note that push buttons can come in various shapes, sizes, and designs, and they can be momentary (returns to its original state when released) or latching (stays in the pressed or released state until manually reset). The specific type of push button used depends on the requirements of the electrical circuit and the intended application.
In modern industrial automation, industrial push button switches are widely used in various equipment and systems as an important control element. They not only provide a simple and effective way of operation, but also play an important role in safety and reliability. This article will explore the definition, types and applications of industrial push button switches in […]
Push button switch mainly refers to light touch key switch, also known as light touch switch. The Push button switch is an electronic switch, belonging to the category of electronic components, which first appeared in Japan [called: sensitive switch]. When it is used, it puts pressure on the operation direction of the switch to meet the conditions […]
(1) （push button switch)Always check the button to remove dirt. Due to the small contact spacing of the button, after years of use or poor sealing, dust or oil emulsion will flow in, resulting in reduced insulation and even short circuit accidents. In this case, insulation and cleaning treatment must be carried out, and corresponding sealing […]
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