Siemens 3SU1000-4BN01-0AA0

The Siemens 3SU1000-4BN01-0AA0 is a key-operated switch designed with a 22 mm round plastic housing, offering reliable control for various industrial applications. This model features three switch positions—on, off, and on—with a left latching function and a right momentary contact, allowing versatile operation within a compact form. The actuating angle is set at two 45-degree turns, corresponding to specific time positions (10:30, 12:00, and 13:30), while key removal is only possible in the center off position for added security. The switch comes with two keys and supports optional special locks if needed. Distributed by BSP Automation, this switch is ideal for situations requiring secure and precise control input.