# Eti-Polam NH3 Fuse Link 361A gTr 250kVA 400V WT-3

**URL:** https://aio.lv/en/product--eti-polam-004115406--12460828
**Data updated:** 2026-05-18 09:37 (EEST)
**Category:** Power Sockets
**Manufacturer:** Eti-Polam
**Manufacturer code:** 004115406
**EAN:** 5904722989023
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-004115406--12460828

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Eti-Polam NH3 fuse link is a high-performance electrical protection component designed for transformer protection. With a rated current of 361A and a capacity of 250kVA at 400V, this gTr class fuse ensures reliable operation in industrial power distribution systems. The WT-3 size standard provides compatibility with standard NH fuse bases, offering robust protection against overloads and short circuits in electrical networks.

## Long description

The Eti-Polam NH3 fuse link is a specialized electrical protection device engineered specifically for the reliable safeguarding of distribution transformers. Designed to meet the rigorous demands of industrial power networks, this gTr class fuse link provides precise protection for systems operating at 400V. With a rated current of 361A and a capacity of 250kVA, it ensures that electrical infrastructure remains protected against the specific thermal and short-circuit stresses associated with transformer operation.
Advantages
This fuse link offers exceptional performance due to its gTr classification, which is optimized for the unique load profiles of transformers. By providing a specific time-current characteristic, it prevents unnecessary tripping during transformer inrush currents while ensuring rapid disconnection during genuine fault conditions. The robust construction of the WT-3 size standard ensures excellent thermal conductivity and mechanical stability, allowing for long-term reliability in demanding industrial environments. Its compatibility with standard NH3 fuse bases simplifies installation and maintenance procedures within existing electrical distribution panels.
Suitable for
Protection of distribution transformers in industrial power grids
Electrical distribution systems requiring gTr class protection
Applications where transformer inrush current management is critical
Industrial facilities utilizing standard NH3 fuse base mounting systems
This fuse link is not suitable for general-purpose circuit protection where a standard gG characteristic is required, as the gTr characteristic is specifically tuned for transformer protection. It should also not be used in systems exceeding the rated voltage of 400V or in applications where the transformer capacity significantly deviates from the 250kVA rating.
Key specifications
Rated current: 361A
Transformer capacity: 250kVA
Rated voltage: 400V
Fuse class: gTr
Size standard: NH3 (WT-3)
Installation should be performed by qualified electrical personnel in accordance with local safety regulations. The fuse link is inserted into a compatible NH3 fuse base or disconnect switch. Ensure that the power is disconnected before installation or replacement to prevent electrical shock. Verify that the fuse base contacts are clean and free of oxidation to ensure optimal electrical connection and heat dissipation.
What to consider before purchase
Verify that the transformer capacity matches the 250kVA rating
Ensure the fuse base is compatible with the NH3 (WT-3) size standard
Confirm that the system voltage does not exceed 400V
Check that the gTr characteristic is appropriate for your specific protection requirements
Usage recommendations
Always replace fuses with the exact same type and rating to maintain the integrity of the protection scheme. Regularly inspect the fuse base for signs of overheating or loose connections to ensure the longevity of the installation.

## FAQ

### How much does the Eti-Polam NH3 361A gTr 250kVA Fuse Link cost, and is it available for purchase?

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 08.07.2026 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. All transactions are 100% secure and encrypted.

### 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-Polam 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-Polam 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/12460828/68762797_large.webp