Siemens RONIS Key-operated switch, plastic, 2 positions, 22mm Part number 3SU1100-4BF11-3FA0

Product Overview

The Siemens 3SU1100-4BF11-3FA0 is a RONIS key-operated switch designed for secure control and operation in electrical panels and machinery. It features a 22 mm round plastic housing, lock number SB30, and includes two keys. The switch provides two positions (O-I) with a latching 90° actuation angle and key removal possible in both positions (O + I). Compact, durable, and easy to install, it ensures reliable mechanical operation for access-controlled or safety-critical functions.

Key Features

• RONIS key-operated switch with lock number SB30 and two supplied keys
• 22 mm round plastic design for standard control panel mounting
• Two switch positions (O-I) with 90° latching actuation
• Key removal possible in both switch positions for enhanced security
• High mechanical reliability and long service life
• Simple snap-mounting system for quick and secure installation

Technical Specifications

• Product Type: RONIS key-operated switch
• Article Number: 3SU1100-4BF11-3FA0
• Lock Number: SB30
• Keys Supplied: 2 pcs
• Switch Positions: 2 (O / I)
• Actuation Angle: 90° (positions 10:30 h / 13:30 h)
• Key Removal: O + I positions
• Mounting Diameter: 22 mm (standard panel cut-out)
• Material: Plastic front ring
• Protection Class (Front): IP66 / IP67 / IP69 / IP69K (when correctly installed)
• Protection Class (Terminals): IP20
• Rated Insulation Voltage (Ui): 500 V AC
• Impulse Withstand Voltage (Uimp): 6 kV
• Ambient Operating Temperature: –25 °C to +70 °C
• Storage Temperature: –40 °C to +80 °C
• Mechanical Service Life: ≈ 1 million operations
• Electrical Endurance: ≈ 10 million operations
• Net Weight (Approx.): 0.077 kg

Compliance & Certifications

• Manufactured according to IEC / EN 60947-5-1 standards
• RoHS compliant and tested for industrial control applications
• Meets Siemens mechanical durability and ingress-protection requirements

Applications

The 3SU1100-4BF11-3FA0 key-operated switch is ideal for control panels, operator stations, and machinery that require restricted or secure operation. With its RONIS lock system and key removal in both positions, it provides dependable performance for start/stop, mode-selection, or safety-interlock functions in industrial and commercial environments.