which size of metal push button switch is widely choosed

When it comes to metal push button switches, the 16mm size is among the most widely chosen. This diameter is popular for several reasons.

1. Installation Compatibility

• In industrial control panels, many standard - sized cut - outs are designed to accommodate 16mm push button switches. For example, in control cabinets for machinery like conveyor belts, the 16mm size can be easily installed without the need for extensive modification of the panel layout. The standardization means that it can be quickly swapped out if it fails, reducing downtime.

• In home automation setups, 16mm push buttons can be neatly integrated into wall - mounted control panels. They fit well with the overall aesthetic and size requirements of residential electrical components, making them a convenient choice for controlling lighting, security systems, or smart home devices.

2. Functionality and Durability

• 16mm push buttons often come with a good balance of actuation force and travel distance. They can be designed to require a moderate amount of force to actuate, which is ideal for applications where accidental presses need to be avoided. For instance, in security system control panels, a 16mm push button with a proper actuation force ensures that only intentional presses trigger an alarm or system reset.

• The metal housing of 16mm push buttons is typically made of materials like stainless steel or nickel - plated brass. These materials offer high corrosion resistance, which is crucial for both indoor and outdoor applications. In outdoor security cameras or industrial equipment exposed to harsh weather conditions, the 16mm metal push button can withstand moisture, dust, and temperature variations due to its robust construction.

3. Illumination Options

• Many 16mm metal push button switches are available with illuminated features, such as the blue LED ring you mentioned. The 16mm size provides enough space for the LED ring to be clearly visible without being overly large or cumbersome. In dark environments, like the control rooms of power plants or in automotive dashboards, the illuminated 16mm push buttons make it easy for operators to locate and use the switches.

• The light distribution of the LED ring in 16mm push buttons is often well - designed to be uniform. This ensures that the entire ring lights up evenly, providing a clear visual indication of the switch's status (e.g., on/off, active/inactive).

However, other sizes are also popular depending on the application:

• 12mm: This size is favored in compact electronic devices where space is at a premium. For example, in handheld remote controls for small appliances or in the control panels of portable medical devices, the 12mm push button offers a small - sized yet functional solution.

• 19mm: Commonly used in more robust industrial and commercial applications. In elevator control panels, the 19mm push buttons are large enough to be easily pressed, even by people wearing gloves. They also provide a more substantial feel, which is suitable for high - traffic areas where durability is key.

• 22mm and 25mm: These larger sizes are typically used in applications where a larger target area is required for easy operation. In public kiosks, such as ATM machines or information booths, the 22mm or 25mm push buttons can be easily accessed by users, regardless of their physical dexterity. They are also suitable for equipment in industrial settings where operators may need to use the buttons while wearing thick work gloves.