# Siemens 3RV2901-1A Auxiliary Switch for Circuit Breakers

**URL:** https://aio.lv/en/product--siemens-3rv2901-1a--1796314
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** Siemens
**Manufacturer code:** 3RV2901-1A
**EAN:** 4011209737075
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 32.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rv2901-1a--1796314

## 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 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 17.60 EUR |

## Summary description

The Siemens 3RV2901-1A is a side-mounted auxiliary switch designed for integration with S00 and S0 size circuit breakers. This wired component features a rated current of 10 A and an IP20 protection rating. It is engineered for reliable signaling and control applications within industrial electrical systems, ensuring seamless compatibility and robust performance in various electrical distribution setups.

## Long description

The Siemens 3RV2901-1A auxiliary switch is a precision-engineered component designed for seamless integration with S00 and S0 size circuit breakers. This side-mounted device provides essential feedback on the switching status of the main circuit breaker, facilitating reliable monitoring and control within industrial electrical installations. With its robust construction and standardized design, it ensures consistent performance in demanding electrical distribution environments.
Advantages
This auxiliary switch offers high reliability and ease of installation due to its side-mounting configuration, which saves space within control cabinets. The inclusion of both normally open and normally closed contacts provides versatile signaling options for various automation and safety circuits. Its durable design and screw terminal connections ensure a secure electrical contact, minimizing the risk of signal loss or maintenance requirements over the long term.
Suitable for
Industrial control panels
Electrical distribution systems
Automation and monitoring of circuit breaker status
Safety-critical signaling applications
This component may not be suitable for applications requiring high-power switching, as it is designed specifically for signal-level feedback. It is also not intended for use with circuit breakers outside of the specified S00 and S0 size ranges or non-compatible series.
Key specifications
Contact configuration: 1 NO + 1 NC
Mounting type: Side-mounted
Connection type: Screw terminals
Protection rating: IP20
Rated current: 10 A
Compatibility: S00 and S0 size circuit breakers
Weight: 0.049 kg
Colour: Black
To install the auxiliary switch, ensure the main circuit breaker is disconnected from the power supply. Align the switch with the side of the circuit breaker housing and snap it into place according to the manufacturer's mechanical interface. Once secured, connect the control wires to the designated screw terminals, ensuring that the wire gauge is appropriate for the terminal capacity. Verify the connection by testing the signaling function before putting the system into full operation.
What to consider before purchase
Verify compatibility with your specific circuit breaker size (S00 or S0)
Ensure the control voltage and current requirements match your system design
Check available space on the side of the breaker within your enclosure
Usage recommendations: Always perform a functional test of the auxiliary switch after installation to confirm that the signaling contacts correctly reflect the state of the circuit breaker. Ensure all screw terminals are tightened to the specified torque to prevent loose connections.

## Specifications

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Rated current | 10 A |
| Wi-Fi | No |
| Built-in display | No |
| Suitable for indoor use | Yes |

### Technical details

| Feature | Value |
|---|---|
| International Protection (IP) code | IP20 |
| Sustainability compliance | Yes |
| Sustainability certificates | WEEE, RoHS, REACH, CE |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -50 - 80 |
| Operating temperature (T-T) | -20 - 60 |

### Features

| Feature | Value |
|---|---|
| Certification | UL / CSA / CCC |
| Product colour | Black |

### Logistics data

| Feature | Value |
|---|---|
| Country of origin | Czech Republic |
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.049 kg |
| Height | 90 mm |
| Width | 9.5 mm |
| Depth | 70 mm |
| Package depth | 42 mm |
| Package height | 103 mm |
| Package width | 44 mm |

## FAQ

### How much does the Siemens 3RV2901-1A Auxiliary Switch cost, and is it available for purchase?

The price is 38.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 39 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Siemens 3RV2901-1A Auxiliary Switch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1796314/47495529_large.webp