# Dehnventil M2 TNC FM 956305 Surge Arrester Type 1+2+3 75kA 3-Pole for TNC Networks

**URL:** https://aio.lv/en/product--dehn-956305--12458000
**Data updated:** 2026-05-18 09:31 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Dehn
**Manufacturer code:** 956305
**EAN:** 4013364510586
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 616.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 509.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dehn-956305--12458000

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Dehnventil M2 TNC FM 956305 is a high-performance combined surge arrester designed for TNC network systems. This Type 1+2+3 device offers a discharge capacity of 75kA and provides comprehensive protection against lightning currents and switching surges. Featuring integrated remote signaling contacts, it ensures reliable monitoring and safety for electrical installations, effectively safeguarding sensitive equipment from transient overvoltages.

## Long description

The Dehnventil M2 TNC FM 956305 is a high-performance combined surge arrester engineered specifically for TNC electrical network systems. This advanced device integrates Type 1, Type 2, and Type 3 protection into a single compact unit, providing a robust defense against both direct lightning strikes and transient switching surges. With a total discharge capacity of 75kA, it ensures that sensitive electronic equipment and critical infrastructure remain protected from dangerous overvoltages.
Advantages
This surge arrester stands out due to its comprehensive multi-stage protection capability, which eliminates the need for additional coordinated surge protection devices. The integrated remote signaling contact allows for seamless integration into building management systems, providing real-time status monitoring and immediate notification of any operational issues. Its durable construction and high discharge capacity make it an essential component for maintaining the longevity and reliability of electrical installations in demanding environments.
Suitable for
TNC electrical network systems
Industrial and commercial building power distribution boards
Protection of sensitive electronic equipment against lightning and switching surges
Installations requiring coordinated Type 1, 2, and 3 protection
When it may not be suitable
This device is specifically designed for TNC network configurations and is not compatible with other earthing systems such as TT or IT networks without appropriate modifications. It should not be installed in environments that exceed its specified voltage or temperature ratings.
Key specifications
Protection type: Type 1+2+3 combined arrester
Network compatibility: TNC systems
Total discharge capacity: 75kA
Number of poles: 3-pole
Remote signaling: Integrated contacts included
How to use
The device should be installed by a qualified electrician within the main distribution board at the transition point between the external supply and the internal installation. It must be 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 contacts should be wired to a monitoring system or an alarm indicator to ensure timely maintenance alerts.
What to consider before purchase
Verify that your electrical network is a TNC system
Ensure there is sufficient space in the distribution board for the 3-pole unit
Check that the local lightning protection zone requirements match the device specifications
Usage recommendations
Regularly inspect the status indicator on the device to ensure it is functioning correctly. If the remote signaling contact triggers an alarm, the surge arrester module should be replaced promptly to maintain continuous protection for your electrical system.

## FAQ

### How much does the Dehnventil M2 TNC FM 956305 Surge Arrester Type 1+2+3 cost, and is it available for purchase?

The price is 616.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 09.07.2026 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 Dehnventil M2 TNC FM 956305 Surge Arrester Type 1+2+3 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/12458000/68760144_large.webp