Siemens 3SU1000-5BF21-0AA0

The Siemens 3SU1000-5BF21-0AA0 is a key-operated switch designed with a 22 mm round plastic housing. This switch features two positions, on and off, which are controlled via a 90-degree turn of the key. It includes a latching mechanism to securely maintain the selected state and comes with two keys for operation. The key can be removed in the off position, providing an added level of safety and control. This reliable switch, available through BSP Automation, is well-suited for applications that require secure and precise manual control.