# Siemens SIRIUS ACT 3SU1801-0NA00-2AC2 Mushroom Pushbutton in Enclosure with Protective Collar and Turn-to-Release

**URL:** https://aio.lv/en/product--siemens-3su1801-0na00-2ac2--1839250
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3SU1801-0NA00-2AC2
**EAN:** 4011209968332
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3su1801-0na00-2ac2--1839250

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Siemens SIRIUS ACT 3SU1801-0NA00-2AC2 is a robust mushroom pushbutton housed in a protective enclosure. It features a yellow protective collar and a reliable turn-to-release mechanism for emergency stop applications. Designed for industrial control systems, this 22mm diameter unit ensures high durability and safety in demanding environments, providing clear visual indication and easy manual operation for machine control and safety protocols.

## Long description

The Siemens SIRIUS ACT 3SU1801-0NA00-2AC2 is a high-quality mushroom pushbutton integrated into a durable enclosure, specifically engineered for industrial safety and control applications. This unit features a prominent mushroom-shaped actuator designed for immediate access, complemented by a protective collar that prevents accidental activation. The turn-to-release mechanism ensures that once the emergency stop is engaged, it remains locked until manually reset, providing a reliable safety protocol for various machinery and control systems.
Advantages
This device offers exceptional mechanical robustness and resistance to harsh industrial conditions, ensuring long-term reliability. The enclosure provides an integrated solution that simplifies installation by eliminating the need for separate housing components. Its ergonomic design allows for intuitive operation, while the high-visibility yellow collar ensures the emergency stop function is easily identifiable in critical situations, contributing to a safer working environment.
Suitable for
Emergency stop circuits in industrial machinery
Safety control panels for automated production lines
Manual shutdown systems for conveyor belts
Control stations requiring high-visibility safety triggers
When it may not be suitable
This unit is designed specifically for emergency stop functions and may not be appropriate for standard operational control tasks where frequent, non-emergency switching is required. It is also not intended for use in environments that exceed its specified ingress protection ratings or in applications requiring specialized hazardous area certifications not covered by this standard industrial model.
Key specifications
Actuator type: Mushroom pushbutton
Mounting diameter: 22 mm
Reset mechanism: Turn-to-release
Enclosure color: Yellow protective collar
Application: Industrial safety and emergency stop
How to use
To activate the emergency stop, press the mushroom head firmly until it locks into the depressed position. This action immediately interrupts the control circuit. To reset the system, rotate the mushroom head in the direction indicated by the arrows until it releases and returns to its original position. Ensure the device is securely mounted to a flat surface using the provided enclosure points before wiring the internal contacts according to your system's electrical schematic.
What to consider before purchase
Verify the required contact configuration for your safety circuit
Ensure the mounting surface is compatible with the enclosure dimensions
Check that the environmental conditions match the device's protection rating
Usage recommendations
Regularly inspect the enclosure and actuator for signs of physical damage or debris accumulation to ensure the turn-to-release mechanism functions smoothly during an emergency.

## FAQ

### How much does the Siemens SIRIUS ACT 3SU1801-0NA00-2AC2 Mushroom Pushbutton cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/1839250/52347119_large.webp