# Surge Arrester ETI ETITEC SM T12 300/25 3+0 — Type T1/T2 (B, C) without leak current

**URL:** https://aio.lv/en/product--eti-002440560--12112882
**Data updated:** 2026-03-20 10:05 (EET)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** ETI
**Manufacturer code:** 002440560
**EAN:** 3838895843610
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 295.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 244.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-002440560--12112882

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

ETI ETITEC SM T12 300/25 3+0 is a surge arrester designed for overvoltage protection classified as T1 and T2 (B, C). The three-pole 3+0 unit has nominal parameters 300/25 and is specified as without leak current. It protects electrical installations and equipment from lightning and switching surges and is suitable for use in distribution boards and industrial or commercial power systems.

## Long description

ETI ETITEC SM T12 300/25 3+0 is a three-pole surge arrester designed for combined Type T1/T2 (B, C) protection in low-voltage power systems. The device with nominal parameters 300/25 provides protection against lightning impulses and switching overvoltages and is intended for installation in distribution boards of commercial, industrial and residential buildings. The product is specified as without leak current, making it suitable where residual leakage must be minimized.
Advantages
The ETITEC SM T12 300/25 3+0 offers coordinated T1/T2 protection in a compact three-pole configuration, ensuring fast clamping of high-energy surges while maintaining compatibility with downstream protective devices. Its construction reduces residual leakage current to negligible levels, and the device is made for straightforward mounting in typical distribution boards. The nominal 300/25 rating provides a balance between maximum discharge capability and continuous operating voltage for common low-voltage networks.
Suitable for
 Protection of distribution boards in commercial and industrial facilities
 Safeguarding sensitive electrical equipment from lightning and switching surges
 Use in three-phase low-voltage power systems without neutral leakage requirements
 Integration into coordinated surge protection systems at service entrance or sub-distribution level
Key specifications
 Type: Combined Type T1/T2 (B, C) surge protection
 Poles: 3+0 (three-pole)
 Nominal parameters: 300/25
 Leakage: specified as without leak current
 Application: lightning and switching surge protection for low-voltage networks
 Mounting: for installation in distribution boards and switchgear
How to use
Install the surge arrester in the incoming or sub-distribution board according to local wiring regulations and ETI installation guidelines. Connect the three phases to the corresponding input terminals and ensure a solid, low-impedance protective earth connection. Verify clearances and coordination with upstream and downstream protective devices; ensure the unit is accessible for inspection and replacement if required. Commission the system after mechanical and electrical checks and confirm that the earthing arrangement meets the required standards for surge protection performance.
Usage recommendations
Place the ETITEC SM T12 300/25 3+0 as close as possible to the main service entrance or the protected sub-distribution board to minimize conductor length between the arrester and the installation earthing point. Combine this device with appropriate follow-on protection devices (Type 2/SPDs) and maintain regular inspection intervals to confirm integrity and functional readiness.

## FAQ

### How much does the Surge Arrester ETI ETITEC SM T12 300/25 3+0 cost, and is it available for purchase?

The price is 295.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 13.07.2026 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 Surge Arrester ETI ETITEC SM T12 300/25 3+0 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 ETI 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 ETI 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/12112882/67648399_large.webp