# Siemens 3RH2911-2HA22 Auxiliary Contact Block, 2NO + 2NC, Front-Mounted

**URL:** https://aio.lv/en/product--siemens-3rh29112ha22--1840702
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Siemens
**Manufacturer code:** 3RH29112HA22
**EAN:** 4011209829558
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rh29112ha22--1840702

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RH2911-2HA22 is a high-quality auxiliary contact block designed for reliable switching operations. Featuring a 2NO + 2NC configuration, this front-mounted module is compatible with Sirius contactors. It is engineered for industrial control systems, providing essential feedback and signaling capabilities in electrical automation circuits. Durable construction ensures long-term performance in demanding environments.

## Long description

The Siemens 3RH2911-2HA22 auxiliary contact block is a precision-engineered component designed to expand the switching capabilities of Sirius contactors. This front-mounted module provides a reliable interface for control and signaling tasks within industrial automation systems. With its robust design and high-quality materials, it ensures consistent electrical performance and long-term operational stability in demanding environments.
Advantages
This auxiliary contact block offers seamless integration with compatible contactors, allowing for quick and secure front-side installation without the need for complex tools. The 2NO + 2NC configuration provides versatile switching options for various feedback and control logic requirements. Its durable construction is specifically built to withstand the rigors of industrial use, ensuring that signaling remains accurate and reliable over many switching cycles.
Suitable for
Industrial control systems
Electrical automation circuits
Feedback and signaling applications
Expanding contactor switching capacity
This module is not suitable for applications requiring power switching, as it is designed exclusively for control and auxiliary signals. It should not be used with contactors that are not compatible with the Sirius series or in environments that exceed the specified electrical and thermal ratings.
Key specifications
Configuration: 2 Normally Open (NO) and 2 Normally Closed (NC) contacts
Mounting type: Front-mounted
Compatibility: Sirius contactors
Application: Auxiliary signaling and control
To install the contact block, ensure the main contactor is disconnected from the power supply. Align the module with the front mounting interface of the compatible Sirius contactor and press firmly until it clicks into place. Verify that the mechanical connection is secure before reconnecting the power and testing the signaling functionality within your control circuit.
What to consider before purchase
Verify compatibility with your specific Sirius contactor model
Ensure the 2NO + 2NC configuration meets your control logic requirements
Check that the front-mounting space is available in your control cabinet
For optimal performance and safety, always ensure that the auxiliary contact block is installed by qualified personnel and that all electrical connections are tightened according to the manufacturer's torque specifications. Regularly inspect the contacts for signs of wear if the system is subjected to high-frequency switching operations.

## FAQ

### How much does the Siemens 3RH2911-2HA22 Auxiliary Contact 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 — 23 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 14.07.2026 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

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