1.15114.9360000

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Pushbutton switches are one of the most widely used devices in control circuits. They are used to start and stop electrical equipment, or to activate switches, relays, and circuit interrupters. The most common form of pushbutton is a momentary contact switch, where the contacts on the switch are held closed when the button is pressed and open when released.

The application field and working principle of pushbutton switches vary from one type to another. In most cases, a pushbutton switch consists of a flat button mounted on a backing plate, which is mechanically connected to a set of contacts. When the button is pressed, the contacts are moved and an electrical connection is established. Depending on the type of circuit, the connection may be momentary or persistent.

A momentary contact switch operates on two basic principles. The first is a “make” contact, which is mechanically connected to the switch’s button. When the switch button is pressed, the make contact closes and an electrical connection is enabled. After the button is released, the contact opens again and the connection is broken.

The second principle is a “break” contact. This contact is not connected to the switch button and remains open until the switch is pushed. When the button is pressed, the break contact closes and an electrical connection is established. After the button is released, the contact opens again and the connection is broken. The break contact is often used as a safety feature in circuits where inadvertent operation of the switch is not desirable.

Other types of pushbutton switches may employ additional principles, such as a “steady state” contact, which stays in one open or closed position. In some cases, a “mechanical” contact is used, which operates on the same principle as a make contact but is constructed differently. A “latch” contact is a variation at the switch contacts, allowing the switch to remain in an open or closed state after the button is released.

In addition to momentary contact switches, pushbutton switches can also be operated in a toggle mode. In this case, the contact remains in either the open or closed state, depending on the initial position of the switch button. This type of switch is often used for on/off switching of electrical equipment. In some cases, a toggle switch may contain additional contacts for more complex control functions.

Pushbutton switches are also used in a variety of other applications, including resetting emergency systems and activating alarm and warning devices. Pushbuttons are also used as safety devices on industrial control systems or other applications where a physical barrier is needed to prevent accidental operation of the switch.

Pushbutton switches provide easy and reliable operation, making them a popular choice in many applications. They are available in a wide variety of forms and configurations, which allows the designer or user to select the most suitable switch for their purpose. When properly specified and installed, pushbutton switches can offer years of reliable performance.

The specific data is subject to PDF, and the above content is for reference