A push button switch with both "on" and "off" functions is typically referred to as a momentary push button switch with a latching mechanism. This type of switch allows you to turn a device on or off by pressing the button, and the switch maintains its state until you press the button again to toggle to the opposite state. Here's how it works:
1. Momentary Action: When you press the button, it makes contact and completes the circuit, turning the connected device on. This is the "on" state, but it's a momentary action, meaning that the switch is only in the "on" state while the button is pressed.
2. Latching Mechanism: The switch has a latching mechanism that holds the last state (either "on" or "off") until it is intentionally changed. This means that if you press the button to turn the device on, it will stay on until you press the button again to turn it off.
3. Toggle Functionality: The latching mechanism provides a toggle functionality, allowing you to switch between the "on" and "off" states with each press of the button.
4. Common Use Cases: This type of push button switch is commonly used in applications where a momentary action is sufficient to trigger a change in state. For example, it might be used as a power button for electronic devices, lighting control, or other applications where a simple press-and-release action is desired.
5. Symbolic Representation: The symbol for a latching push button switch with both "on" and "off" functions is often represented in electrical diagrams by a rectangular box with two parallel lines inside. One line is typically solid, representing the "on" state, and the other might be dashed or open, representing the "off" state.
It's important to note that the exact design and characteristics of these switches can vary, and they may be available in different sizes, styles, and configurations to suit various applications. When using such switches, always refer to the manufacturer's specifications and wiring diagrams to ensure proper installation and functionality.
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