# Siemens SIRIUS 3RH2911-1XA22-0MA0 Auxiliary Switch Block, 2NO + 2NC, Front-Mounted

**URL:** https://aio.lv/en/product--siemens-3rh29111xa220ma0--1840620
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** Siemens
**Manufacturer code:** 3RH29111XA220MA0
**EAN:** 4011209891579
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rh29111xa220ma0--1840620

## 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 3RH2911-1XA22-0MA0 is a front-mounted auxiliary switch block designed for industrial control systems. It features 2 normally open (NO) and 2 normally closed (NC) contacts, providing reliable switching for SIRIUS contactors from size S00 to S3. Equipped with screw terminals, this component ensures secure electrical connections and is essential for expanding the control functionality of automation equipment.

## Long description

The Siemens SIRIUS 3RH2911-1XA22-0MA0 is a high-quality front-mounted auxiliary switch block engineered for integration into industrial control systems. This component is specifically designed to expand the switching capabilities of SIRIUS contactors ranging from size S00 to S3. By providing 2 normally open (NO) and 2 normally closed (NC) contacts, it allows for complex control logic and reliable feedback signaling in automation environments. The unit features robust screw terminals that ensure stable and secure electrical connections, maintaining operational integrity even in demanding industrial settings.
Advantages
This auxiliary switch block offers exceptional reliability and ease of installation due to its front-mounting design, which saves valuable space within control cabinets. The use of high-grade materials ensures long-term durability and consistent performance under frequent switching cycles. Its compatibility with a wide range of SIRIUS contactor sizes provides flexibility for system designers and maintenance engineers, allowing for standardized inventory management across various automation projects.
Suitable for
Industrial automation control systems
Expansion of contactor switching capacity
Feedback signaling in motor control circuits
Integration with SIRIUS contactors sizes S00 to S3
When it may not be suitable
This auxiliary switch block is not intended for use with contactors outside the specified SIRIUS S00 to S3 size range. It is also not suitable for applications requiring high-power switching, as it is designed strictly for control-level auxiliary signals.
Key specifications
Contact configuration: 2 Normally Open (NO) + 2 Normally Closed (NC)
Mounting type: Front-mounted
Terminal type: Screw terminals
Compatibility: SIRIUS contactors sizes S00 to S3
How to use
To install the auxiliary switch block, ensure the main power supply to the contactor is disconnected. Align the block with the front interface of the compatible SIRIUS contactor and press firmly until it clicks into place. Once mounted, connect the control wiring to the screw terminals, ensuring that each wire is tightened to the manufacturer's recommended torque specifications to prevent loose connections. Verify the contact state transitions using a multimeter before energizing the system.
What to consider before purchase
Verify the size of your existing contactor to ensure compatibility
Check the required number of NO and NC contacts for your control logic
Ensure the installation space allows for front-mounted accessories
Usage recommendations: Always perform a functional test of the auxiliary contacts after installation to confirm correct signal transmission. Regularly inspect screw terminal connections during scheduled maintenance to ensure they remain tight and free from oxidation.

## FAQ

### How much does the Siemens SIRIUS 3RH2911-1XA22-0MA0 Auxiliary Switch Block cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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/1840620/47519081_large.webp