The C&K BPA series offers side-actuated DIP switches designed for flexibility and reliability. These switches are available in various configurations, including thru-hole and surface mount options, and feature a high-pressure contact system that eliminates the need for tape seals during washing. They are commonly used in address switching for industrial controls, logic switching for computers and peripherals, and function controlling across numerous applications. The BPA04RSB specifically offers 4 positions and is constructed with PPS housing and gold-plated contacts for enhanced durability and performance.