What function does a push button switch serve?

A push button switch is designed primarily to make contact when it is pressed and to break that contact when it is released. This function is essential in various applications, such as starting a device or toggling a function on and off without maintaining a continuous connection. The momentary nature of a push button provides a simple and intuitive way to control electronic systems, allowing for quick user interactions.

Understanding this function clarifies why maintaining continuous contact, controlling multiple circuits, or operating with a toggle mechanism do not apply to a standard push button switch. Continuous contact is characteristic of latching switches, controlling multiple circuits typically involves different types of switches or relays, and toggle mechanisms involve a different operation than that provided by a momentary push button.