Siemens 3SB3500-4FD01

The Siemens catalog number 3SB3500-4FD01 refers to a key-operated switch designed with two keys for secure control. This three-position switch allows the key to be removed only in the first position, enhancing safety and operational control. It features a left-maintained position and a right momentary position, with each operating angle set at 50 degrees. The switch comes equipped with a holder and is built to fit a 22mm panel cutout. Distributed by BSP Automation, this switch is suitable for applications requiring reliable key control and precise switching functions.