Schneider Electric XB3A0-75 Operator Selector Switch

The Schneider Electric XB3A0-75 (XB3A075) is a 22 mm panel-mounted rotary selector switch operator from the Telemecanique XB3 family, designed for manual machine control and operating-mode selection in industrial automation systems. It is commonly installed on operator stations, electrical control panels, machine tools, conveyors, and OEM machinery where reliable rotary selector operation is required, enabling manual rotary selection for machine operating modes, circuit changeover, process control, and equipment enable/disable functions. As a legacy XB3 device, it is superseded by Harmony XB4/XB5 22 mm selector switches, with common replacements including XB4BD21, XB5AD21, and Harmony XB4 22 mm selector switch; the bezel is metal and mounting is panel-based.