A22L-DG-12A-20A

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A22L-DG-12A-20A Pushbutton Switches: Application Field and Working Principle

Pushbutton switches are devices used to control the flow of electric current in an electrical system. They are widely used in commercial, industrial and residential applications. A22L-DG-12A-20A is one of the most popular pushbutton switches on the market today. This article will explain the application field and working principle of A22L-DG-12A-20A pushbutton switches.

Application Field

A22L-DG-12A-20A pushbutton switches are suitable for use in a wide range of industrial and commercial applications, such as motor control, HVAC systems, access control, security systems, lighting control systems and fire alarms. Additionally, they are also suitable for use in residential applications, such as kitchen appliances, home theater systems and security systems. A22L-DG-12A-20A pushbutton switches are also used in marine and off-road vehicles, due to their water and dust resistance.

Working Principle

A22L-DG-12A-20A pushbutton switches are equipped with a normally open (NO) contact. This means that when the button is pushed, the contacts are closed and electric current is allowed to flow. The moment the button is released, the circuit is opened and electric current is no longer allowed to pass. This makes the A22L-DG-12A-20A an ideal choice for applications that require momentary or intermittent control of electric current.

Apart from the normally open contact, the A22L-DG-12A-20A also has two other contact types, namely the normally closed (NC) and the changeover (CO). The normally closed contact maintains a closed circuit until it is opened manually. On the other hand, the changeover contact works like a toggle switch, whereby a single push of the button toggles the circuit between an open and a closed state.

It is important to note that the A22L-DG-12A-20A pushbutton switches are rated according to their operating voltage, current and number of switches. These ratings determine the type of electrical system they can be used in. It is also important to ensure that the ratings are within the specified limits of the application.

Conclusion

A22L-DG-12A-20A pushbutton switches are widely used in both commercial and residential applications due to their ease of installation and operation. They are designed with a normally open (NO), a normally closed (NC) and a changeover (CO) contact which allows for momentary and intermittent control of electric current. It is important to note that their application field and operating parameters should match the type of electrical system they are being used in.

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