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Siemens SIRIUS ACT 3SU18 Series Twist Release Emergency Stop Push Button, Panel Mount, 22 mm Cutout, 2 NC 3SU1851-0NB00-2AA2
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Colour | Red, Yellow |
| Length | 85mm |
| Model | 3SU1851-0NB00-2AA2 |
| Depth | 109mm |
| IP Rating | IP69K, IP69, IP67, IP66 |
| Width | 85mm |
| Mount Type | Panel Mount |
| Housing Material | Metal |
| Series | SIRIUS ACT 3SU18 |
| Contact Configuration | 2 NC |
| Switch Configuration | 2 NC |
| Head Style | Mushroom |
| Head Diameter | 40mm |
| Terminal type | Screw |
| Contact DC Voltage | 500V dc |
| Contact AC Voltage | 500V ac |
| Better World Claim | Extended Product Life, Low Carbon Manufacture |
| Contact Current | 10A |
| Cutout Diameter | 22mm |
| Number of Auxiliary Contacts | 2 |
| Push Button Actuation | Twist Release |
| Push Button Material | Plastic |
| Siemens Emergency Stop Push Button, Surface Mount, 2NC, IP67Brand | Siemens |
Key Features
- Enables quick and reliable emergency shutdowns in industrial machinery.
- Features a twist release actuation for swift reset after emergency.
- Constructed with metal housing and plastic push button for durability.
- Offers high ingress protection with IP69K, IP69, IP67, and IP66 ratings.
- Suitable for harsh environments with dust and moisture exposure.
- Complies with standards ISO 13850, IEC 81346-2, IEC 60068-2-27, IEC 60068-2-6, IEC 60721.
- Rated for 500V AC/DC voltage and 10A contact current.
- Red and yellow color options enhance visibility and safety awareness.
Product Description
Siemens 3SU1851-0NB00-2AA2 Emergency Stop Push Button from the SIRIUS ACT 3SU18 series provides a reliable and fast mechanism for emergency shutdowns in various industrial applications. Its panel mount design fits into a 22 mm cutout, making it compatible with many control panels and automation systems. The button features a twist release mechanism that enables quick reset in critical situations, ensuring minimal downtime.
The robust metal housing coupled with a plastic mushroom-shaped push button ensures suitability for industrial environments, including those exposed to dust, moisture, and mechanical impacts. It carries IP ratings of IP69K, IP69, IP67, and IP66, indicating excellent protection against water and dust ingress.
Equipped with 2 normally closed contacts (2 NC), the device supports contact ratings up to 500V AC/DC and a maximum current of 10A, compatible with a wide range of industrial safety circuits. The switch design complies with international standards such as ISO 13850 and various IEC standards, guaranteeing safety and quality compliance.
Available in red and yellow colors, the mushroom head improves emergency visibility. The product is manufactured in Germany, reflecting high production standards. Supports industrial safety shutdowns and machinery monitoring.
Panel mount installation with a 22 mm cutout diameter. Twist release actuation ensures rapid reset and operational continuity. Metal housing and plastic button for durability and user comfort. High IP ratings for protection in hostile industrial environments.
Conforms to multiple international safety and quality standards. Ideal for use in electrical control panels and automated machinery systems. Color options improve emergency recognition.
This Emergency Stop Push Button is widely used in automation, electrical control, manufacturing, and machinery applications where rapid emergency response is critical. It is designed to enhance operational safety in industrial, laboratory, and manufacturing environments.
Explore more Siemens products and other safety switchgear at EnvMart to optimize your industrial safety and automation solutions.
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Frequently Asked Questions
The required cutout diameter for this model is 22 mm, making it compatible with various control panels and automation systems.
This emergency stop push button is rated for a maximum contact current of 10A.
It has multiple ingress protection ratings: IP69K, IP69, IP67, and IP66, indicating excellent protection against dust and moisture.
The housing is made of metal, while the push button itself is constructed from plastic.
This model features a twist release actuation mechanism, allowing for a quick reset after an emergency shutdown.
The dimensions of this unit are 85 mm in length, 85 mm in width, and 109 mm in depth.
This emergency stop push button is equipped with 2 normally closed contacts (2 NC).
It complies with several international standards, including ISO 13850 and various IEC standards.
This model is available in red and yellow, enhancing visibility and safety awareness in emergency situations.
This emergency stop push button is manufactured in Germany.
The terminal type for this model is screw, allowing for secure connections.
It is suitable for use in automation, electrical control, manufacturing, and machinery applications where rapid emergency response is critical.
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