3SU1030-4BF21-0AA0 SIEMENS

The 3SU1030-4BF21-0AA0 is a key-operated switch from Siemens, designed for industrial applications requiring secure access control. This 22mm round switch features a durable plastic housing with a metal front ring, ensuring robustness and longevity in demanding environments. The switch is equipped with a RONIS lock mechanism, identified by the lock number SB30, and comes with two keys for authorized operation. It offers two switch positions, O (Off) and I (On), with a latching function to maintain the selected position. The actuating angle is 90 degrees, with switching positions at 10:30h and 13:30h, providing clear tactile feedback during operation. Key removal is possible only in the I (On) position, enhancing security and preventing unauthorized access during operation. This key-operated switch is part of the Siemens SIRIUS ACT series, known for its modular design and ease of installation. Special lock options such as SB31, 421, and 455 are available for customized security requirements. It is ideal for use in control panels, machinery, and other applications where controlled access is essential.