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
- Brand:
- Siemens
Subtotal (1 unit)*
£90.74
(exc. VAT)
£108.89
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- Plus 1 unit(s) shipping from 04 May 2026
- Plus 1 unit(s) shipping from 04 May 2026
- Plus 10 unit(s) shipping from 07 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £90.74 |
*price indicative
Better World
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- RS Stock No.:
- 173-6855
- Distrelec Article No.:
- 302-15-399
- Mfr. Part No.:
- 3SU1851-0NB00-2AA2
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Mount Type | Panel Mount | |
| Product Type | Emergency Stop Push Button | |
| Cutout Diameter | 22mm | |
| Contact Configuration | 2 NC | |
| Housing Material | Metal | |
| Push Button Actuation | Twist Release | |
| Series | SIRIUS ACT 3SU18 | |
| Illuminated | No | |
| IP Rating | IP69K, IP69, IP67, IP66 | |
| Colour | Red, Yellow | |
| Terminal Type | Screw | |
| Head Style | Mushroom | |
| Number of Auxiliary Contacts | 2 | |
| Contact Current | 10A | |
| Contact DC Voltage | 500V dc | |
| Contact AC Voltage | 500V ac | |
| Depth | 109mm | |
| Switch Configuration | 2 NC | |
| Hazardous Area Certification | NO | |
| Standards/Approvals | ISO 13850, IEC 81346-2, IEC 60068-2-27, IEC 60068-2-6, IEC 60721 | |
| Length | 85mm | |
| Head Diameter | 40mm | |
| Better World Product | Yes | |
| Better World Claim | Extended Product Life, Low Carbon Manufacture | |
| Width | 85mm | |
| Push Button Material | Plastic | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Mount Type Panel Mount | ||
Product Type Emergency Stop Push Button | ||
Cutout Diameter 22mm | ||
Contact Configuration 2 NC | ||
Housing Material Metal | ||
Push Button Actuation Twist Release | ||
Series SIRIUS ACT 3SU18 | ||
Illuminated No | ||
IP Rating IP69K, IP69, IP67, IP66 | ||
Colour Red, Yellow | ||
Terminal Type Screw | ||
Head Style Mushroom | ||
Number of Auxiliary Contacts 2 | ||
Contact Current 10A | ||
Contact DC Voltage 500V dc | ||
Contact AC Voltage 500V ac | ||
Depth 109mm | ||
Switch Configuration 2 NC | ||
Hazardous Area Certification NO | ||
Standards/Approvals ISO 13850, IEC 81346-2, IEC 60068-2-27, IEC 60068-2-6, IEC 60721 | ||
Length 85mm | ||
Head Diameter 40mm | ||
Better World Product Yes | ||
Better World Claim Extended Product Life, Low Carbon Manufacture | ||
Width 85mm | ||
Push Button Material Plastic | ||
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 2 NC IP67, IP69K
- Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button 22 mm Cutout IP67
- 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 Key Release Emergency Stop Push Button 22 mm Cutout IP67,
- 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 2 NC