Siemens Sirius 3SU10 Key switch head, 2-position, latching, 22mm cutout Part number 3SU1000-5BF11-0AA0

Product Overview

The Siemens SIRIUS ACT key-operated switch (SKU: 3SU1000-5BF11-0AA0) is a 22 mm round actuator element designed for control-panel applications. It features a keyed cylinder with two switch positions (O-I) and is part of the 3SU1 series of actuators and indicators.

Key Features

• 22 mm round key-operated switch actuator element
• Two switch positions (O-I) with latching mechanism
• Compatible with SIRIUS ACT 3SU1 series elements
• Designed for plastic-front mounting (typical 22 mm panel cut-out)

Technical Specifications

• Product Type: Key-operated actuator / element
• Article Number: 3SU1000-5BF11-0AA0
• Cut-out Diameter: 22.3 mm (typical for 22 mm series)
• Switch Positions: 2 (O & I)
• Actuator Shape: Round, key-type
• Material of Actuating Element: Plastic (body) with key cylinder
• Ambient Temperature (Operation): approx. –25 °C to +70 °C*
• Storage/Transport Temperature: approx. –40 °C to +80 °C*

Compliance & Certifications

• Designed for industrial panel-mount actuator applications
• Meets Siemens 3SU1 series standards for actuators & indicators

Applications

Ideal for use in control panels, machine interfaces and industrial automation systems where a keyed control function is needed (for example for restricted access or mode selection). The key-operated switch ensures only authorized operators can change the switch position, supporting safe and controlled operation environments.