135-5638, Siemens, Siemens SIRIUS ACT 3SU10 Series 2 Position Selector Switch Head, 22mm Cutout, Green Handle, Brand Siemens, Actuator Colour Green, Number of Positions 2 Siemens SIRIUS ACT 3SU10 Series 2 Position Selector Switch Head, 22mm Cutout, Green Handle