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header-product Siemens 3RH2911-1FA40 Auxiliary Switch Block, 4 NO Contacts, Front Mounting
46.49 €

Siemens 3RH2911-1FA40 Auxiliary Switch Block, 4 NO Contacts, Front Mounting

Siemens 3RH2911-1FA40 Auxiliary Switch Block Photo 1
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Siemens 3RH2911-1FA40 Auxiliary Switch Block, 4 NO Contacts, Front Mounting

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Siemens 3RH2911-1FA40 Auxiliary Switch Block, 4 NO Contacts, Front Mounting

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Short description

The Siemens 3RH2911-1FA40 is a high-quality auxiliary switch block designed for integration with SIRIUS contactors. This unit features 4 normally open (NO) contacts and is intended for front-side mounting. It provides reliable switching performance for industrial control circuits, ensuring seamless compatibility and easy installation in various automation and electrical distribution systems.
Available for order: 41 pcs.
Warranty: 2 Years
SKU: 1796212
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 19.71 € (Weight: 26.03 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

The Siemens 3RH2911-1FA40 auxiliary switch block is a precision-engineered component designed to expand the functionality of SIRIUS contactors. Featuring 4 normally open (NO) contacts, this block allows for reliable signal transmission and control within industrial automation systems. Its design is optimized for front-side mounting, facilitating quick and efficient integration into existing electrical panels and control cabinets.

Advantages

This auxiliary switch block offers exceptional reliability and durability, meeting the rigorous standards required for industrial environments. The front-mounting configuration simplifies the installation process, allowing technicians to add switching capacity to contactors without requiring significant space or complex wiring modifications. Its robust construction ensures consistent performance and long-term operational stability in demanding electrical distribution systems.

Suitable for

  • Industrial automation and control systems
  • Expansion of SIRIUS contactor functionality
  • Signal monitoring and feedback loops
  • Electrical distribution and switching applications

When it may not be suitable

This switch block is specifically designed for use with compatible SIRIUS contactors and may not be suitable for integration with contactors from other manufacturers or different series. It is not intended for high-power load switching, as it is strictly an auxiliary control device.

Key specifications

  • 4 normally open (NO) contacts
  • Front-side mounting design
  • Compatible with SIRIUS contactor series
  • Industrial-grade switching performance

How to use

To install the auxiliary switch block, ensure that the power supply to the contactor is disconnected. Align the block with the front mounting interface of the compatible SIRIUS contactor and press it firmly until it clicks into place. Once secured, connect the control circuit wiring to the designated terminals according to your electrical schematic. Verify that all connections are tight and that the mechanical operation is smooth before restoring power to the system.

What to consider before purchase

  • Verify compatibility with your specific SIRIUS contactor model
  • Ensure the 4 NO contact configuration meets your control circuit requirements
  • Confirm that front-side mounting space is available in your enclosure

Usage recommendations

Always perform a functional test of the auxiliary contacts after installation to ensure proper signal transmission. Regularly inspect terminal connections for tightness to prevent signal loss due to vibration or thermal expansion.

Description

Machine translation. Load original

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Customer reviews

Customer questions

FAQ

How much does the Siemens 3RH2911-1FA40 Auxiliary Switch Block cost, and is it available for purchase?

The price is 46.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 41 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.