1、Protective buttons, which have a protective appearance, some are dynamic break type or dynamic close type, there is also a dynamic close and dynamic break button. With a signal light, which can give instructions, some are called action click buttons. If you divide them according to function, some come with explosion-proof, radiation-proof or waterproof, some are used for emergency and opening, some for interlocking or knob type. Some buttons are by key or combination type.
2、push button switche is a switch that can be pushed by a button and can be triggered on or off to achieve a circuit changeover. Its construction is still relatively simple, but it is very widely used in our daily life.
3、If we divide it according to the way it operates, there is the open type, which is fixed on the blooming switch plate. There is also a protective type with an enclosure, which can prevent the button parts from being damaged, or human contact and the risk of electric shock.
4, there is another suitable for the bathroom or kitchen use is the waterproof type, with a sealed shell, to prevent water intrusion. Others have an anti-corrosive effect, preventing the intrusion of corrosive gases. Some have an explosion-proof type or a knob type.
5. For example, there is a general type with a mushroom head or a knob, and some with an indicator light or with a key. They are used in different ways for different types. Some of the buttons are also made in different colours to be able to distinguish them. These are red, green, black and white. If it is red, it generally means that it is stopped and green means that it can be activated. The buttons also differ in terms of their parameters, including their size and the current of their contacts, and need to be wired according to their instructions when using them.
