Siemens 3SB3500-4AL21



The Siemens 3SB3500-4AL21 is a key-operated switch designed for secure control applications. This two-position switch comes with two keys, allowing the key to be removed only in the 'off' position, ensuring safety and preventing unauthorized operation. It features a maintained contact function and operates with a 50-degree turn angle. The switch includes a holder and fits a standard 22mm panel cutout. Distributed by BSP Automation, this switch is a reliable choice for situations where controlled access and clear operational status are essential.
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