Siemens 3SB3648-6BA20 Pushbutton Switch

Siemens 3SB3648-6BA20 is a 22 mm red pilot light (indicator) from the SIRIUS 3SB3 family, intended for panel mounting in industrial automation. The red LED indicator operates at 110 VAC and is designed to provide quick-status signaling in control panels, indicating states such as ready, run, stop, or fault. As part of Siemens’ modular 3SB3 indicators, it fits standard 22 mm panel cutouts and can be integrated with other components in the same family to create compact operator interfaces on machines and process controls. The LED illumination delivers bright, steady light suitable for factory environments, helping operators monitor equipment at a glance and respond to status changes promptly. The 3SB3648-6BA20 is one of several 3SB3 color/voltage variants that Siemens offers in the 22 mm indicator line, enabling consistent color coding and voltage across a control panel for clear visual signaling.