Siemens Emergency stop pushbutton red, yellow backing plate

Product Overview

This SIRIUS ACT emergency stop mushroom pushbutton is designed for safety-critical applications requiring immediate shutdown capability in industrial environments. The 22mm round mounting design features a prominent 40mm red mushroom head with positive latching mechanism, ensuring reliable emergency stop functionality. This complete unit includes a yellow backing plate with "EMERGENCY STOP" inscription, holder with 1 NC contact, and screw terminals for secure installation and wiring.

Key Features

• Size: 22mm mounting diameter with 40mm mushroom head
• Construction: High-quality plastic body with red mushroom actuator
• Safety Compliance: Fully compliant with EN ISO 13850 safety standards
• Latching Mechanism: Positive latching with rotate-to-unlatch operation
• Contact Configuration: 1 NC (normally closed) contact included
• Terminal Type: Screw terminals for secure connections
• Visual Identification: Yellow backing plate with "EMERGENCY STOP" inscription
• Protection Rating: IP66/IP67/IP69K - providing protection against dust, water immersion, and high-pressure cleaning

Technical Specifications

• Article Number: 3SU1100-1HB20-1CG0
• EAN: 4011209957855
• Series: SIRIUS ACT 3SU11
• Net Weight: 0.081 kg
• Mushroom Head Diameter: 40mm
• Panel Cutout Diameter: 22.3mm
• Opening Width: 75mm
• Opening Height: 46.4mm
• Operating Temperature Range: -25°C to +70°C
• Maximum Voltage: 500V AC/DC
• Contact Configuration: 1 NC (Single Pole Normally Closed)
• Contact Current Rating: 10A at 5 to 500 VAC
• Packaging: 100.00 x 120.00 x 40.00 mm
• Country of Origin: Germany

Safety & Compliance Features

• Safety Standard: Compliant with EN ISO 13850 for emergency stop devices
• Operation Type: Push-latch, twist-release mechanism
• Safety Function: Positive latching ensures maintained emergency stop state
• Reset Method: Manual rotate-to-unlatch for intentional reset only
• Visual Indication: High-visibility red mushroom head with yellow backing plate
• Contact Reliability: Forced-guided 1 NC contact for fail-safe operation

Electrical Specifications

• Contact Arrangement: 1 NC (normally closed)
• Terminal Connection: Screw terminal
• Contact Voltage Rating: 5 to 500 VAC
• Contact Current Rating: 10A
• Contact Material: Silver alloy for reliable conductivity
• Number of Command Points: 1

Protection & Certifications

• Degree of Protection: IP66/IP67/IP69K
• NEMA Ratings: 1/2/3/3R/4/4X/12 compliant
• RoHS Compliance: Compliant since 01.10.2014
• Export Control: AL: N / ECCN: N
• WEEE Take-Back: Yes, compliant with 2012/19/EU directive

Applications Part of the SIRIUS ACT portfolio, this emergency stop pushbutton is essential for safety-critical industrial applications requiring immediate equipment shutdown. The EN ISO 13850 compliance ensures proper safety functionality for machine safety systems, emergency shutdown circuits, and safety-related control applications. The positive latching mechanism prevents accidental reset, while the rotate-to-unlatch feature ensures intentional operator action for system restart. Ideal for manufacturing equipment, industrial machinery, conveyor systems, and any application where emergency stopping capability is required by safety regulations.

Product Series Information Under the brand name SIRIUS ACT, Siemens offers a comprehensive portfolio of emergency stop devices with global safety approvals. The innovative design ensures reliable emergency stop functionality with clear visual identification and positive mechanical action. The rugged construction is suitable for harsh industrial environments with resistance to dust, oils, and caustic solutions.

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• Official Product Datasheet (PDF)
• Product Support Page
• Technical Documentation
• Product Catalog Page