Push button switches such as the BA31 and BA42 models, are commonly used in various industrial and commercial applications for controlling electrical circuits. These switches are designed to be robust, reliable, and easy to operate, making them suitable for environments where durability and consistent performance are essential.

- BA31 Series: This series typically features a compact design with a 22mm mounting diameter, making it ideal for applications where space is limited. The BA31 switches often come with different actuator options (e.g., flush, extended, or illuminated) and are available in various configurations, including momentary and latching types. They are commonly used in control panels, machinery, and automation systems.

- BA42 Series: The BA42 series is known for its larger 30mm mounting diameter, providing a more substantial and ergonomic design. These switches are often used in heavy-duty applications where a more prominent and easily accessible button is required. Like the BA31, the BA42 series offers multiple actuator styles and electrical configurations, including illuminated options for enhanced visibility in low-light conditions.

Both the BA31 and BA42 series are designed to meet industry standards for performance and safety, often featuring IP-rated protection against dust and moisture. Their versatility and durability make them suitable for a wide range of applications, from industrial machinery to consumer electronics