# Dehn DG M TNS 275 Surge Arrester 230-400 V

**URL:** https://aio.lv/en/product--dehn-952400--1507466
**Data updated:** 2026-06-12 15:45 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Dehn
**Manufacturer code:** 952400
**EAN:** 4013364108455
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 106.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 88.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dehn-952400--1507466

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Dehn DG M TNS 275 is a high-performance 4-pole surge arrester designed for 230/400 V AC power networks. Featuring a rapid response time of 25 ns and housed in a durable red thermoplastic casing, this device provides reliable protection against electrical surges. It utilizes terminal connections and operates within a 50-60 Hz frequency range. Certified by CE, KEMA, VDE, and UL, it ensures safety and compliance for industrial and residential electrical installations.

## Long description

The Dehn DG M TNS 275 is a high-performance 4-pole surge arrester engineered specifically for 230/400 V AC power networks. This modular device is designed to protect sensitive electrical equipment from voltage spikes and surges, ensuring the longevity and stability of your power infrastructure. It features a robust, prewired design that combines a base part with easily replaceable plug-in protection modules, making maintenance straightforward and efficient.
Advantages
This surge arrester offers exceptional reliability through its advanced Thermo Dynamic Control monitoring system, which continuously tracks the status of the protection modules. The use of heavy-duty zinc oxide varistors ensures a high discharge capacity, effectively managing transient overvoltages. Its modular architecture allows for quick, tool-free replacement of modules, while the vibration and shock-tested design guarantees durability even in demanding environments. Furthermore, it is fully compatible with other devices in the Red/Line product family, allowing for seamless energy coordination within complex electrical systems.
Suitable for
TN-S electrical power distribution systems
Industrial electrical installations
Residential power supply protection
Commercial building infrastructure
When it may not be suitable
This device is specifically designed for TN-S network configurations and may not be compatible with other earthing systems like TN-C or IT without appropriate modifications or additional components. It is intended for AC power networks and should not be used in DC circuits.
Key specifications
Configuration: 4-pole (4+0)
Nominal voltage: 230/400 V AC
Frequency range: 50-60 Hz
Response time: 25 ns
Casing material: Durable thermoplastic
Certifications: CE, KEMA, VDE, UL
Testing standards: EN 60068-2 (vibration and shock)
How to use
The Dehn DG M TNS 275 should be installed by a qualified electrician in accordance with local electrical regulations. The unit is designed for mounting on standard DIN rails. Once the base part is securely installed and wired into the TN-S system, the protection modules can be inserted into the base. The module locking system ensures they remain securely in place during operation. If a module needs to be replaced, simply press the module release button to remove it without the need for specialized tools.
What to consider before purchase
Verify that your electrical network is a TN-S system
Ensure the voltage rating matches your local power supply
Check available space in your distribution board for a 4-pole modular device
Confirm that the installation environment meets the specified vibration and shock standards
Usage recommendations
Regularly inspect the status indicator on the protection modules to ensure the device is functioning correctly. If the indicator shows that a module has reached the end of its service life, replace it immediately to maintain continuous protection.

## Specifications

### Power

| Feature | Value |
|---|---|
| Nominal input voltage | 230 - 400 |
| Peak current, normal mode | 20000 A |
| AC outlet types | Terminal |
| AC input frequency | 50 - 60 |

### Features

| Feature | Value |
|---|---|
| Material | Thermoplastic |
| Response time | 0 ms |
| Product colour | Red |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.414 kg |
| Height | 90 mm |
| Width | 72 mm |
| Depth | 73 mm |

### Packaging content

| Feature | Value |
|---|---|
| Number of products included | 1 pc(s) |

### Ports & interfaces

| Feature | Value |
|---|---|
| Cordless | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -40 - 80 |

### Certificates

| Feature | Value |
|---|---|
| Certification | CE, KEMA, VDE, UL |

## FAQ

### How much does the Dehn DG M TNS 275 Surge Arrester cost, and is it available for purchase?

The price is 106.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 85 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 16.07.2026 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. All transactions are 100% secure and encrypted.

### Can Dehn DG M TNS 275 Surge Arrester 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

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

When making a choice, we recommend paying attention to the key features: weight, ac outlet types, 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.

## Image

https://aio.lv/img/cache/product/1507466/64158819_large.webp