Siemens Ronis Key-operated switch, 22 mm Part number 3SU1100-4BF11-1BA0

Product Overview

The Siemens 3SU1100-4BF11-1BA0 is a **SIRIUS Ronis key-operated switch actuator** designed for standard 22 mm panel mounting in industrial control and automation systems. With a rugged key mechanism that requires a physical key to change positions, this actuator enhances control security and prevents unauthorized operation. It is intended for use with compatible SIRIUS ACT modular contact blocks and provides dependable mode selection and system enable/disable functions where controlled access is required.

Key Features

• Key-operated switch actuator from the Siemens SIRIUS Ronis range
• 22 mm round design for standard control panel cutouts
• Physical key operation for secure control and access restriction
• Black rotary knob with removable key for controlled operation
• Compatible with SIRIUS ACT modular contact blocks and accessories
• Robust construction for industrial environments
• Provides clear ON/OFF or multi-position control when paired with appropriate contact blocks

Technical Specifications

• Article Number: 3SU1100-4BF11-1BA0
• Product Family: SIRIUS ACT Ronis key-operated switches
• Actuator Type: Key-operated rotary switch actuator
• Mounting Hole Diameter: 22 mm
• Color: Black
• Key Function: Lockable key operation to prevent unauthorized switching
• Compatibility: Siemens SIRIUS ACT 22 mm modular system
• Material: Industrial-grade plastic and metal key mechanism
• Operating Temperature: Standard industrial range
• Connection Method: Via detachable modular contact blocks

Compliance & Standards

• Designed in accordance with Siemens SIRIUS ACT modular control standards
• Suitable for industrial control panel and automation applications
• Meets performance expectations for secure key-operated control devices

Applications

The Siemens 3SU1100-4BF11-1BA0 key-operated switch is used in control panels, machine interfaces, and automation systems where controlled access and intentional mode selection are required. Typical applications include machinery enable/disable control, safety interlocks, authorized function selection, and other areas where secure, deliberate switching is critical to operational integrity and safety.