# Siemens SIRIUS ACT 3SU1050-1HB20-0AA0 Emergency Stop Mushroom Pushbutton, Metal Front Ring, Red, Turn-to-Release

**URL:** https://aio.lv/en/product--siemens-3su1050-1hb20-0aa0--1839303
**Data updated:** 2026-05-18 02:42 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3SU1050-1HB20-0AA0
**EAN:** 4011209946323
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.99 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 19.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3su1050-1hb20-0aa0--1839303

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Siemens SIRIUS ACT 3SU1050-1HB20-0AA0 is a high-quality emergency stop mushroom pushbutton designed for industrial control panels. Featuring a durable metal front ring and a high-gloss red finish, this actuator ensures reliable operation. It utilizes a turn-to-release mechanism for safety. Ideal for integration into machine safety systems, it provides clear visual identification and robust performance in demanding environments.

## Long description

The Siemens SIRIUS ACT 3SU1050-1HB20-0AA0 is a professional-grade emergency stop mushroom pushbutton engineered for critical safety applications in industrial control panels. This actuator features a robust metal front ring and a high-visibility red mushroom head, ensuring it stands out in emergency situations. Designed for durability and reliability, it provides a secure interface for machine operators to immediately halt operations when necessary.
Advantages
The primary benefit of this emergency stop button is its rugged construction, which ensures long-term performance even in harsh industrial environments. The metal front ring provides superior mechanical stability compared to plastic alternatives, while the ergonomic mushroom design allows for quick and intuitive activation. The turn-to-release mechanism adds an extra layer of safety, preventing accidental restarts and ensuring that the system remains in a safe state until manually reset by authorized personnel.
Suitable for
Industrial machinery control panels
Emergency shutdown systems in manufacturing plants
Safety-critical automation equipment
Conveyor belt control interfaces
This device may not be suitable for environments requiring specific hygienic standards, such as food processing or pharmaceutical cleanrooms, where specialized stainless steel or wash-down rated components are mandatory. Additionally, it is not intended for use in explosive atmospheres unless housed within an appropriately certified enclosure.
Key specifications
Actuator type: Mushroom pushbutton
Color: Red
Front ring material: Metal
Reset method: Turn-to-release
Mounting diameter: 22 mm
Protection class: IP66, IP67, IP69K
To install the Siemens SIRIUS ACT emergency stop, mount the actuator into a standard 22 mm hole on your control panel or enclosure. Ensure the locking mechanism is properly secured to the mounting bracket. Once installed, the button can be pressed to trigger an emergency stop signal. To reset the system, rotate the mushroom head in the direction indicated by the arrows until it clicks back into the operational position.
What to consider before purchase
Verify the mounting hole diameter of your control panel
Ensure compatibility with your existing contact blocks
Check the environmental protection requirements of your facility
Confirm the necessity of a turn-to-release reset mechanism for your safety protocol
Regularly inspect the actuator for any signs of mechanical wear or debris accumulation to ensure the emergency stop function remains fully operational at all times.

## FAQ

### How much does the Siemens SIRIUS ACT 3SU1050-1HB20-0AA0 Emergency Stop Pushbutton cost, and is it available for purchase?

The price is 22.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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 23.07.2026 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/1839303/47504689_large.webp