Siemens 3SB3500-4LF01


The Siemens 3SB3500-4LF01 is a key-operated switch designed for secure control applications. It features two keys and operates in two positions, with the key removable only in position 0 to ensure safety and prevent unauthorized operation. The switch has a maintained action and offers a 50-degree operating angle, making it suitable for precise control tasks. With a 22mm mounting diameter and an included holder, this switch is built for easy installation and reliable performance. Distributed by BSP Automation, it’s a dependable choice for industrial automation systems requiring secure access and straightforward operation.
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