3SU1050-1ED10-0AA0-Z Y13 - Siemens
Mushroom pushbutton, 22 mm, round, metal, shiny, black, 40 mm, 3 switch positions, after pushing in Retraction to center position, after pulling out the button Retraction to center position, with laser labeling, symbol number according to, ISO 7000 or IEC 60417