Siemens 3SB3500-4AL01

The Siemens 3SB3500-4AL01 is a key-operated switch designed with two keys and two positions for secure and controlled operation. This switch features a removable key that can be taken out in the off position, enhancing safety and preventing unauthorized use. It operates with a 50-degree turning angle and is maintained in each position, meaning it holds its state until intentionally changed. The device comes with a holder and is designed to fit a 22mm panel opening. This reliable key switch is available through BSP Automation, offering a practical solution for applications requiring secure control inputs.