The AR22S2R-20B is a 22mm pushbutton selector switch with a ring-type operator designed for 2-position maintained operation. It features a 2NO (2 normally open) contact configuration with black button color, providing reliable switching in industrial control applications. The switch is rated for making and breaking currents across multiple voltage levels: 1.1A making / 0.55A breaking at 125V, 0.55A making / 0.27A breaking at 250V, and 0.2A making / 0.1A breaking at 301V–600V. This contact rating code P600 ensures compatibility with standard industrial control panels and instrumentation systems. The switch is commonly used in machine tools, industrial machines, control panels, and distribution panels for improved interfacing, easier installation, and increased operational safety.