# Dehn SMP TNS 275 FM Surge Arrester Type T2+T3 20kA 4P Push-in

**URL:** https://aio.lv/en/product--dehn-942407--12454424
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Dehn
**Manufacturer code:** 942407
**EAN:** 4013364493148
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 99.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 82.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dehn-942407--12454424

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Dehn SMP TNS 275 FM is a combined Type 2 and Type 3 surge arrester designed for TNS systems. Featuring a 20kA discharge capacity and convenient Push-in connection technology, this 4-pole device provides reliable protection for sensitive electronic equipment against transient overvoltages. It includes remote signaling contacts for status monitoring, ensuring safety and efficiency in electrical installations.

## Long description

The Dehn SMP TNS 275 FM is a high-performance combined Type 2 and Type 3 surge arrester engineered specifically for TNS electrical systems. This 4-pole device is designed to safeguard sensitive electronic equipment by effectively limiting transient overvoltages that can occur due to switching operations or indirect lightning strikes. With a robust 20kA discharge capacity, it provides a reliable barrier against electrical surges, ensuring the longevity and operational stability of connected devices in residential and commercial installations.
Advantages
The primary advantage of this surge arrester is its advanced Push-in connection technology, which significantly simplifies the installation process by allowing for quick and secure conductor termination without the need for specialized tools. The integrated remote signaling contact allows for seamless status monitoring, enabling users to receive immediate feedback on the device's operational health. Its compact design and dual-functionality as both a Type 2 and Type 3 arrester make it an efficient space-saving solution for modern distribution boards.
Suitable for
Protection of sensitive electronic devices in TNS power networks
Residential electrical distribution boards
Commercial office equipment and IT infrastructure
Industrial control systems requiring fine protection
When it may not be suitable
This device is specifically designed for TNS systems and is not compatible with other earthing arrangements such as TT or IT systems without appropriate modifications or additional equipment. It should not be used as a primary lightning protection device in areas subject to direct lightning strikes, as it is intended for secondary surge protection.
Key specifications
Type: Combined Type 2 and Type 3 surge arrester
Configuration: 4-pole
Discharge capacity: 20kA
Connection technology: Push-in terminals
Monitoring: Integrated remote signaling contact
System compatibility: TNS
How to use
The device is designed for mounting on a standard DIN rail within an electrical distribution cabinet. Ensure the power supply is disconnected before beginning the installation. Insert the conductors into the Push-in terminals according to the wiring diagram provided with the unit, ensuring a firm connection. Connect the remote signaling contacts to your monitoring system if required. Once installed, verify that the status indicator shows the device is ready for operation.
What to consider before purchase
Verify that your electrical installation is a TNS system
Ensure there is sufficient space on the DIN rail within your distribution board
Check if remote monitoring integration is required for your specific setup
Confirm that the discharge capacity meets the requirements of your local electrical regulations
Usage recommendations
Regularly inspect the status indicator on the device to ensure it remains in a functional state. If the indicator signals a fault, the surge arrester module should be replaced immediately to maintain continuous protection for your equipment.

## FAQ

### How much does the Dehn SMP TNS 275 FM Surge Arrester Type T2+T3 cost, and is it available for purchase?

The price is 99.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 06.07.2026 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 SMP TNS 275 FM Surge Arrester Type 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/12454424/68756861_large.webp