With pushbutton switches and pushbuttons, the switching mechanism is triggered by manually depressing the button. Thanks to the simple and quick method of triggering, these switches are used above all for connecting or disconnecting circuits, for instance as Emergency Stop switches. The operating field may be provided with numbers or an indicator lamp to render the switch status clearly legible. Pushbutton switches and pushbuttons are available in various shapes and colours and also different materials such as plastic or metal. They are suitable for many fields of application, and are used amongst other things in front plates and circuit board assembly.