How to Choose a Metal Button?

Metal button is a type of switch made from durable materials such as stainless steel or aluminum, used for on-off operations in electronic circuits. When pressed, it opens or closes the circuit. It is commonly used in the following areas:

Industrial machinery
Automation systems
Elevators
Vehicle control panels

Water and dust resistant models are also available, making them a popular choice for outdoor or harsh environments. LED-illuminated versions are also available.

The features to consider when selecting a metal button are as follows:

Button Type: Latching or Momentary
Head Type: Raised or Flat
Light: Illuminated or Non-illuminated
Light Symbol: With Power Icon or Without

Momentary Metal Button

Momentary metal button is a type of momentary switch that only activates the circuit while being pressed, thanks to a built-in spring mechanism.

Features:

Thanks to the spring mechanism, it returns to its original position automatically when released.
Usually “NO (Normally Open)”; it closes the circuit when pressed.
“NC (Normally Closed)” versions are also available.

Where is it used?

Doorbell buttons
Machine start/stop controls
Automation systems
Test circuits

Example:

When you press an elevator button, it calls the floor, but when you release it, the button returns to its original position — this is a momentary metal button.

Latching Metal Button

Latching metal button is a type of "latching" switch used to open or close a circuit, but it maintains its position when pressed. Unlike momentary buttons, it keeps the circuit continuously on or off after being pressed.

Features:

Activates the circuit on the first press,
Deactivates the circuit on the second press (or vice versa).
Mechanically changes position (has a locking mechanism instead of a spring).
Usually has a stainless metal body, durable.
Commonly available with LED illumination.

Where is it used?

Electronic power on/off systems
Vehicle control panels
Industrial machines
Computer case power buttons for fixed on/off applications

What's the difference?

Momentary button: Works while being pressed; returns when released.
Latching button: Stays in position when pressed; changes only with another press.