# Dehn DV M2 TNS 255 FM Surge Arrester 4P Type T1+T2+T3 100kA

**URL:** https://aio.lv/en/product--dehn-956405--12468118
**Data updated:** 2026-05-18 09:35 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Dehn
**Manufacturer code:** 956405
**EAN:** 4013364510562
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 770.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 637.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dehn-956405--12468118

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The Dehn DV M2 TNS 255 FM is a high-performance 4-pole combined surge arrester designed for TNS systems. Classified as Type T1+T2+T3, it provides comprehensive protection against lightning currents and switching surges. Featuring a remote signaling contact, this device ensures reliable monitoring of the protective status. It is ideal for industrial and residential electrical installations requiring high-capacity surge suppression and long-term operational safety.

## Long description

The Dehn DV M2 TNS 255 FM is a high-performance 4-pole combined surge arrester engineered specifically for TNS electrical systems. This advanced device integrates Type T1, T2, and T3 protection levels into a single compact unit, offering robust defense against both direct lightning strikes and transient switching surges. Equipped with a remote signaling contact, it allows for seamless integration into building management systems, ensuring that the operational status of the protection is monitored in real-time.
Advantages
This surge arrester stands out due to its high discharge capacity and its ability to provide multi-stage protection within a single device. By combining T1, T2, and T3 functionalities, it simplifies the installation process while maintaining a high level of safety for sensitive electronic equipment. The inclusion of a remote signaling contact provides an essential layer of reliability, allowing users to receive immediate alerts if the protective components require maintenance or replacement. Its durable construction ensures long-term performance even in demanding industrial or residential environments.
Suitable for
Industrial electrical distribution boards
Residential main distribution panels
Protection of sensitive electronic devices and control systems
TNS network configurations
When it may not be suitable
This device is specifically designed for TNS systems and may not be compatible with other earthing arrangements such as TT or IT systems without appropriate modifications or additional components. It is also not intended for use in environments where the operating voltage significantly exceeds the specified nominal voltage range.
Key specifications
Number of poles: 4
Protection class: Type T1+T2+T3
Discharge capacity: 100kA
System compatibility: TNS
Signaling: Remote signaling contact included
How to use
The device should be installed by a qualified electrician in the main distribution board at the point of entry. It is mounted on a standard DIN rail. Ensure that the connection cables are kept as short as possible to minimize inductive voltage drops during a surge event. The remote signaling contact should be wired to a monitoring circuit or alarm system to ensure that the status of the arrester is tracked continuously.
What to consider before purchase
Verify that your electrical system is a TNS configuration
Ensure there is sufficient space on the DIN rail within your distribution board
Confirm that the voltage ratings match your local power supply
Usage recommendations
Regularly inspect the visual status indicator on the device to ensure it is functioning correctly. If the indicator shows that the protection has been exhausted, the modular inserts should be replaced immediately by a professional to maintain system safety.

## FAQ

### How much does the Dehn DV M2 TNS 255 FM Surge Arrester 4P T1+T2+T3 cost, and is it available for purchase?

The price is 770.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 07.07.2026 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, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Dehn DV M2 TNS 255 FM Surge Arrester 4P T1+T2+T3 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 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 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/12468118/68770656_large.webp