Siemens 3SU1000-4BL01-0AA0

The Siemens catalog number 3SU1000-4BL01-0AA0 refers to a Ronis key-operated switch designed for control applications. This switch features a 22 mm round plastic housing and includes two keys for operation. It offers three distinct switch positions—latching at I, O, and II—with a 2x45° actuating angle, corresponding to positions at 10:30, 12:00, and 13:30 hours. The key can be removed only in the center (O) position, ensuring secure control during operation. Additionally, there are options for special locks such as SB31, 421, and 455. This reliable key switch is available through BSP Automation, providing a convenient source for high-quality control components.