Siemens 3SB3500-3AK01

The Siemens 3SB3500-3AK01 is a key-operated switch designed for secure control applications. This two-position switch allows the key to be removed in both the off (O) and on (I) positions, providing reliable lock functionality for safety and operational control. It features a maintained mechanism with a 50-degree operating angle and comes in a bright yellow color for clear visibility. The switch is compact, fitting into a 22mm panel cutout, and includes a holder for convenient installation. Distributed by BSP Automation, this key switch is ideal for environments requiring controlled access and clear operational status.