RS Better World
Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button, Panel Mount, 22 mm Cutout, 2 NC, IP69K, IP69,
- RS Stock No.:
- 173-6855
- Distrelec Article No.:
- 302-15-399
- Mfr. Part No.:
- 3SU1851-0NB00-2AA2
- Manufacturer:
- Siemens
Subtotal (1 unit)*
SGD346.98
(exc. GST)
SGD378.21
(inc. GST)
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In Stock
- Plus 5 unit(s) shipping from 02 November 2026
- Plus 10 unit(s) shipping from 13 November 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | SGD346.98 |
*price indicative
Our Better World range features products that make it easy for you to make a greener product choice you can trust.
Learn more about RS Better World products
- RS Stock No.:
- 173-6855
- Distrelec Article No.:
- 302-15-399
- Mfr. Part No.:
- 3SU1851-0NB00-2AA2
- Manufacturer:
- Siemens
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | Emergency Stop Push Button | |
| Mount Type | Panel Mount | |
| Cutout Diameter | 22mm | |
| Contact Configuration | 2 NC | |
| Push Button Actuation | Twist Release | |
| Housing Material | Metal | |
| Series | SIRIUS ACT 3SU18 | |
| Illuminated | No | |
| IP Rating | IP69K, IP69, IP67, IP66 | |
| Colour | Red, Yellow | |
| Terminal Type | Screw | |
| Head Style | Mushroom | |
| Contact DC Voltage | 500V dc | |
| Contact Current | 10A | |
| Number of Auxiliary Contacts | 2 | |
| Contact AC Voltage | 500V ac | |
| Switch Configuration | 2 NC | |
| Depth | 109mm | |
| Standards/Approvals | ISO 13850, IEC 81346-2, IEC 60068-2-27, IEC 60068-2-6, IEC 60721 | |
| Hazardous Area Certification | No | |
| Head Diameter | 40mm | |
| Length | 85mm | |
| Better World Product | Yes | |
| Better World Claim | Extended Product Life, Low Carbon Manufacture | |
| Width | 85mm | |
| Push Button Material | Plastic | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Emergency Stop Push Button | ||
Mount Type Panel Mount | ||
Cutout Diameter 22mm | ||
Contact Configuration 2 NC | ||
Push Button Actuation Twist Release | ||
Housing Material Metal | ||
Series SIRIUS ACT 3SU18 | ||
Illuminated No | ||
IP Rating IP69K, IP69, IP67, IP66 | ||
Colour Red, Yellow | ||
Terminal Type Screw | ||
Head Style Mushroom | ||
Contact DC Voltage 500V dc | ||
Contact Current 10A | ||
Number of Auxiliary Contacts 2 | ||
Contact AC Voltage 500V ac | ||
Switch Configuration 2 NC | ||
Depth 109mm | ||
Standards/Approvals ISO 13850, IEC 81346-2, IEC 60068-2-27, IEC 60068-2-6, IEC 60721 | ||
Hazardous Area Certification No | ||
Head Diameter 40mm | ||
Length 85mm | ||
Better World Product Yes | ||
Better World Claim Extended Product Life, Low Carbon Manufacture | ||
Width 85mm | ||
Push Button Material Plastic | ||
- COO (Country of Origin):
- DE
Siemens SIRIUS ACT 3SU18 Series Emergency Stop Push Button, 22mm Cutout Diameter, 2NC Contact Configuration - 3SU1851-0NB00-2AA2
This emergency stop push button is intended for critical industrial safety applications, providing immediate shutdown capabilities in machinery and processes. Its robust design and user-friendly twist release mechanism make it a suitable choice for automation, electronics, and mechanical industries, focusing on safety in high-pressure environments.
Features & Benefits
• Floor mounting design facilitates installation for various setups
• IP66, IP67, and IP69 ratings offer exceptional environmental protection
• Twist release actuation enables swift user response in emergencies
• Red and yellow colour options improve visibility and safety awareness
• Voltage rating spans 5V to 500V for versatile usage
Applications
• Facilitates emergency shutdowns in manufacturing machinery
• Ideal for electrical control panels and machine safety systems
• Commonly found in environments with high dust and moisture exposure
• Integrated into safety circuits for industrial and commercial equipment
How is installation carried out for this emergency stop push button?
It can be easily mounted on the floor to adapt to various machinery setups.
What voltage range is compatible with this push button?
It supports a range from 5V to 500V, accommodating different electrical systems.
How does the twist release feature enhance safety?
It allows for immediate action in emergencies, restoring normal operation swiftly.
Related links
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 22 mm Cutout IP67
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 2 NC IP67, IP69K
- Siemens SIRIUS ACT 3SU18 Series Pull Release Emergency Stop Push Button 22 mm Cutout IP69K,
- Siemens SIRIUS ACT 3SU18 Series Emergency Stop Push Button 1 NC IP67 IP69K
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 22 mm Cutout IP66
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 22 mm Cutout IP66,
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button SPDT IP67, IP69
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 22 mm Cutout IP67