# Surge arrester dehn + soehne DEHN BRS 10.27 AQ2.5 10 V2A, model 540920, for lightning and surge protection

**URL:** https://aio.lv/en/product--dehn-soehne-540920--10089896
**Data updated:** 2026-02-18 14:37 (EET)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** dehn + soehne
**Manufacturer code:** 540920
**EAN:** 4013364144194
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 14.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dehn-soehne-540920--10089896

## 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

DEHN BRS 10.27 AQ2.5 10 V2A (MPN 540920) is a dehn + soehne surge protection device designed for lightning and transient overvoltage protection. Intended for installation in power distribution systems, it provides a dedicated protective function for specified conductors. Useful in commercial or industrial installations to reduce damage risk to equipment and maintain operational continuity.

## Long description

DEHN BRS 10.27 AQ2.5 10 V2A is a compact surge arrester designed for lightning and transient overvoltage protection in power distribution systems. Intended for installation where dedicated protective devices are required for specific conductors, it supports integration into equipotential bonding and protective conductor networks. The device is suitable for use in commercial and industrial electrical installations to reduce the risk of damage to equipment and to help maintain continuity of operation during transient events.
Advantages
The surge arrester offers a robust mechanical design with a continuously adjustable tensioning strap for secure attachment to earthing pipes and conductors. It accommodates one or two conductors or through-wiring with a solid conductor cross-section range of 2.5–10 mm², enabling flexible connection options. Designed in accordance with relevant installation practices for equipotential bonding, the unit provides targeted protection for specified conductors while simplifying mounting and connection in confined distribution enclosures.
Suitable for
Protection of specific conductors in commercial and industrial power distribution boards
Integration into protective and functional equipotential bonding systems
Installation where a compact arrester with adjustable clamp is required
Applications requiring connection of 1 or 2 solid conductors or through-wiring (2.5–10 mm²)
Key specifications
Type: surge arrester for lightning and transient overvoltages
Mounting: earthing pipe clamp with continuously adjustable tensioning strap
Connection: accepts 1 or 2 solid conductors or through-wiring
Conductor cross-section (solid): 2.5–10 mm²
Material/finish: corrosion-resistant metal parts for earthing connection (V2A stainless-steel components where applicable)
How to use
Mount the arrester onto a suitable earthing or bonding pipe using the adjustable tensioning strap, ensuring a firm and corrosion-free mechanical and electrical contact. Connect the designated conductors — one or two solid wires or a through-wire — into the clamp, observing the permitted cross-section range of 2.5–10 mm². Ensure that connections are tightened to the recommended torque values given in the project documentation or local installation rules and that the device is installed in accordance with applicable wiring regulations for equipotential bonding and surge protection.
Usage recommendations
Install the device as part of a comprehensive lightning and surge protection concept. Verify compatibility with the building’s earthing system and follow applicable national and international electrical standards during installation. Periodic visual inspections and checks of connection tightness are recommended to maintain reliable protective performance.

## FAQ

### How much does the Surge arrester dehn + soehne DEHN BRS 10.27 AQ2.5 10 V2A cost, and is it available for purchase?

The price is 16.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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. 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 dehn + soehne 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 dehn + soehne 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/10089896/56500926_large.webp