Siemens Illuminated twin p/button, green: I, red: O, 22mm Part number 3SU1051-3AB42-0AK0

Illuminated twin pushbutton, 22 mm, round, metal, shiny, green: I, red: O, pushbuttons, flat. Part of the SIRIUS ACT series, this illuminated twin pushbutton combines dual switching functionality in a single command point. Features two momentary contact switching functions with industry-standard color coding - green for "I" (on/start) and red for "O" (off/stop). Constructed with genuine metal and engineered with smart functions for reliable operation in mission-critical applications.

Article Number: 3SU1051-3AB42-0AK0

Technical Specifications:

• Button Type: Illuminated twin pushbutton with flat design
• Design: Round, flush mount, dual button configuration
• Material: Metal, shiny high-gloss finish
• Button Colors: Green "I" (on/start) and Red "O" (off/stop)
• Front Ring: Chrome metal finish
• Contact Type: Momentary contact on both buttons
• Mounting Diameter: 22.3 mm
• Button Configuration: Two independent switching functions in one unit
• Command Positions: 2 separate momentary positions
• Illumination: Suitable for LED lighting on both buttons
• User Replaceable: Buttons can be replaced from front

Protection & Ratings:

• Protection Rating: IP66/IP67/IP69/IP69K
• NEMA Rating: 1/2/3/3R/4/4X/12
• Operating Temperature: -25 to 70°C
• Environmental Conditions: Extensively element-tested for reliability
• High-Pressure Cleaning: Suitable for high-pressure jet cleaning
• Chemical Resistance: Resistant to dust, oils, and caustic solutions

Physical Properties:

• Net Weight: 0.064 kg
• Packaging Dimensions: 60.00 x 80.00 x 30.00 mm
• EAN: 4011209972940
• UPC: 804766069024
• Country of Origin: China
• Packaging Quantity: 1 piece

Design Features:

• SIRIUS ACT Series: Modern design combining style, intelligence, and physical toughness
• Dual Functionality: Two independent momentary switching functions in one command point
• Space-Saving Design: Combines two functions in standard 22mm footprint
• Snap-On Installation: Innovative one-handed installation concept without special tools
• Grove-Free Mounting: Can be mounted into grove-free holes (notching not required)
• Twist Prevention: Full twist prevention already integrated
• Self-Holding Function: Actuator self-holds during mounting process
• Front Access: User-serviceable components accessible from front panel

Applications:

• Start/Stop Operations: Green "I" for start, Red "O" for stop functions
• Machine Control: Dual control functions for equipment operation
• Process Control: Independent control of two related functions
• Safety Applications: Clear visual distinction between start and stop operations
• Industrial Control Systems: Space-efficient dual switching solutions
• Control Panels: Professional-grade interfaces with standard color coding
• Manufacturing Equipment: Reliable dual-function operation in demanding environments

Color Coding & Safety:

• Green "I" Button: Industry standard for start, on, run operations
• Red "O" Button: Industry standard for stop, off, halt operations
• Clear Identification: Visual distinction prevents operational errors
• Safety Compliance: Meets industrial color coding standards
• Universal Understanding: Globally recognized I/O color conventions
• Immediate Recognition: Clear visual identification reduces response time

Twin Button Benefits:

• Space Efficiency: Two functions in single 22mm mounting point
• Consistent Interface: Uniform appearance with dual functionality
• Reduced Installation: Single mounting point for dual operations
• Cost Effective: One device provides two switching functions
• Panel Optimization: Maximizes control density on panels
• Maintenance Efficiency: Single component for dual functions

Illumination Features:

• Dual LED Integration: Compatible with LED modules for both buttons
• Independent Illumination: Each button can be illuminated separately
• Status Display: Visual feedback for both operational states
• Smart Functions: Engineered with communication capabilities
• Clear Indication: Separate illumination for each switching function

Installation Benefits:

• One-Handed Installation: Snap-on concept for effortless mounting
• No Special Tools: Installation possible without additional equipment
• No Notching Required: Grove-free hole mounting capability
• Front Maintenance: User-serviceable components from front panel
• Secure Mounting: Self-holding actuator prevents dropping during installation
• Industrial Grade: Suitable for use in industry and outdoors

Environmental Resistance:

• Dust Protection: Complete protection against dust ingress
• Oil Resistance: Reliable operation in presence of industrial oils
• Chemical Resistance: Withstands exposure to caustic solutions
• High-Pressure Cleaning: Can be cleaned with high-pressure jets
• Outdoor Suitability: Designed for both indoor and outdoor installations
• Temperature Stability: Maintains performance across wide temperature range

System Integration:

• Modular Design: Individual device, holder and modules ordered separately
• Contact Modules: Requires separate contact modules for each button function
• Flexible Configuration: Compatible with various contact and LED modules
• Professional Installation: Standard 22mm mounting compatibility
• SIRIUS ACT Performance: Simply assembled, simply strong, simply perfect

Professional Features:

• Momentary Operation: Both buttons feature momentary contact type
• Heavy-Duty Construction: Metal construction for intensive industrial use
• Modern Design: Contemporary appearance for professional control panels
• Global Approvals: Worldwide product approvals for international applications
• Quality Engineering: Siemens reliability in compact dual-function design

Compliance & Environmental:

• Product Lifecycle: PM300: Active Product
• RoHS Compliance: Since 01.10.2014
• Export Control: AL: N / ECCN: N
• WEEE Take-Back Obligation: Yes
• REACH Article 33: Compliant - No SVHC substances currently identified

Classification:

• eClass: 27-37-12-10 (versions 6, 7.1, 8, 9, 9.1, 12, 14)
• ETIM: EC000221 (versions 7, 8, 9)
• UNSPSC: 39-12-22-21

Download existing graphical data for this product:

• Technical Datasheet (PDF)
• Product Information
• CAD Models and Drawings
• Technical Support & Documentation