3SU1100-1HB20-1CG0
EMERGENCY STOP mushroom pushbutton, 22 mm, round, plastic, red, 40 mm, positive latching, acc. to EN ISO 13850, rotate-to-unlatch, with yellow backing plate, inscription: EMERGENCY STOP, with holder, 1 NC, screw terminal
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 3SU1100-1HB20-1CG0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number | 3SU1100-1HB20-1CG0 |
| Product Description | EMERGENCY STOP mushroom pushbutton, 22 mm, round, plastic, red, 40 mm, positive latching, acc. to EN ISO 13850, rotate-to-unlatch, with yellow backing plate, inscription: EMERGENCY STOP, with holder, 1 NC, screw terminal |
| Product family | Actuators and indicators, 22 mm, round, plastic, black |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Price Group | 41J |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Material | see also metal factor (further details are available on the help page) |
| Metal Factor | LAO—– |
| Additional Product Information | ||
| EAN | 4011209957855 | |
| UPC | Not available | |
| Commodity Code | 85365080 | |
| LKZ_FDB/ CatalogID | CC-IC10 | |
| Product Group | 5454 | |
| Group Code | R711 | |
| Country of origin | Germany | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.10.2014 | |
| Product class | A: Standard product which is a stock item could be returned within the returns guidelines/period. | |
| WEEE (2012/19/EU) Take-Back Obligation | Yes | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | Not available | |
Product Description
3SU1100-1HB20-1CG0
The Siemens 3SU1100-1HB20-1CG0 is a 22 mm round emergency stop pushbutton, designed for safety-critical industrial applications. This pushbutton features a 40 mm red mushroom head, ensuring quick and easy activation in emergency situations. It has a positive latching mechanism and a rotate-to-unlatch function, preventing accidental resets. The button is supplied with a high-visibility yellow backing plate, clearly labeled with “EMERGENCY STOP” for instant recognition.

Key Features and Specification
- Type: Emergency Stop Mushroom Pushbutton
- Panel Cutout Size: 22 mm
- Shape: Round
- Material: Plastic
- Color: Red with Yellow Backing Plate
- Mushroom Button Diameter: 40 mm
- Operation Type: Positive Latching
- Unlatching Mechanism: Rotate-to-unlatch
- Standard Compliance: EN ISO 13850
- Inscription: “EMERGENCY STOP” on Yellow Backing Plate
- Included Holder: YesContact Configuration: 1 NC (Normally Closed)
- Terminal Type: Screw Terminal
- Lifecycle Status: PM300 (Active Product)
Applications:
- Emergency Stop Systems in Industrial Environments
- Essential for manufacturing, automation, and machinery safety
- Control Panels and Operator Stations
- Integrated into electrical control systems for enhanced safety compliance.
- Factory and Process Automation Systems
- Provides a critical emergency shutdown feature in industrial plants.
Product Details:
- Product Family: Actuators and Indicators, 22 mm, Round, Plastic, Black
- Lifecycle Status: PM300 – Active Product
- EAN: 4011209957855
- UPC: Not Available
- Commodity Code: 85365080
- Catalog ID: CC-IC10
- Product Group: 5454
- Group Code: R711
Summary:
The Siemens 3SU1100-1HB20-1CG0 is a high-visibility emergency stop pushbutton, featuring a 40 mm red mushroom head and a yellow backing plate with “EMERGENCY STOP” inscription. It utilizes a positive latching mechanism with a rotate-to-unlatch reset, ensuring controlled and safe shutdowns. Compliant with EN ISO 13850, this pushbutton is ideal for safety-critical industrial applications. Its 1 NC contact configuration, screw terminals, and robust design make it a reliable choice for emergency stop functions in automation and control systems.
Frequently Asked Questions
What is a Push Button Switch?
✅ A push button switch is an electromechanical device used to activate or deactivate an electrical circuit by manually pressing a button. These switches are available in various designs, sizes, and configurations, making them suitable for industrial automation, machinery, and control panels. Common applications include emergency stop buttons, control systems, and user interfaces.
How Does a Push Button Switch Work?
✅ push button switch A operates by applying pressure to the button or actuator, which compresses an internal spring and moves the electrical contacts. This action either closes or opens the circuit, depending on whether the switch is normally open (NO) or normally closed (NC). Push button switches are commonly used in industrial control systems, machinery, and automation applications for precise circuit activation.
What is the difference between a tactile pushbutton and a detection pushbutton?
✅ Tactile pushbuttons provide physical feedback and are designed for user interaction, often with a click sound. Detection pushbuttons sense positions (e.g., open/closed) without requiring user actuation.
What are the benefits of Siemens pushbuttons?
✅ Siemens pushbuttons offer IP69K durability, global certifications, modern design, intuitive operation, quick installation, and compatibility with AS-i, IO-Link, and PROFINET for advanced communication.
- Durability: IP69K rating ensures high resistance to extreme conditions, including exposure to oils, vapors, and corrosive solutions.
- Certifications: Fully certified for both national and international standards, ensuring reliable compliance with industry regulations.
- Design Flexibility: Available in metal and plastic variants, offering modern aesthetics to suit various applications and environments.
- Ease of Use: Features intuitive haptic feedback and illuminated controls for a seamless and user-friendly operation.
- Quick Installation: Effortless one-handed setup with innovative patented holder designs for faster deployment.
- Advanced Communication: Fully compatible with AS-i, IO-Link, PROFINET, and PROFIsafe technologies for enhanced communication and integration.
- Safety Assurance: ATEX-certified options are available for hazardous environments, ensuring maximum safety in challenging conditions.
Why choose Siemens SIRIUS ACT?
✅ Siemens SIRIUS ACT offers reliable, durable, and intelligent components, combining advanced technology with sleek design for powerful machines and advanced plants.





















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