# Eti-Polam NH3 Fuse Link 144A gTr 100kVA 400V WT-3

**URL:** https://aio.lv/en/product--eti-polam-004115402--12426493
**Data updated:** 2026-05-13 19:23 (EEST)
**Category:** Power Sockets
**Manufacturer:** Eti-Polam
**Manufacturer code:** 004115402
**EAN:** 5904722989795
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 37.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-004115402--12426493

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Eti-Polam NH3 fuse link is a high-performance electrical protection component designed for transformer protection. Rated at 144A with a gTr characteristic, it is suitable for 100kVA transformers at 400V. This WT-3 size fuse ensures reliable circuit interruption during overloads and short circuits, providing essential safety for industrial power distribution systems.

## Long description

The Eti-Polam NH3 fuse link is a specialized electrical protection device engineered specifically for the reliable safeguarding of distribution transformers. With a rated current of 144A and a gTr characteristic, this component is optimized for 100kVA transformers operating at 400V. As a WT-3 size fuse, it provides robust performance in industrial power distribution networks, ensuring that circuits are interrupted effectively during overloads or short-circuit events to prevent equipment damage.
Advantages
This fuse link offers high operational reliability and precision in its protection characteristics, specifically tailored for transformer applications. The gTr class ensures that the fuse can withstand the specific inrush currents associated with transformer operation while providing rapid disconnection during fault conditions. Its durable construction and standardized WT-3 dimensions allow for seamless integration into existing fuse bases and electrical distribution panels, maintaining high safety standards in demanding industrial environments.
Suitable for
Protection of 100kVA distribution transformers
Industrial power distribution systems
Electrical networks operating at 400V
Applications requiring gTr characteristic protection
When it may not be suitable
This fuse is not intended for general-purpose circuit protection where a gG characteristic is required, as its performance is specifically tuned for transformer loads. It should not be used in systems exceeding the 400V voltage rating or in applications where the transformer capacity significantly deviates from the 100kVA specification.
Key specifications
Rated current: 144A
Rated voltage: 400V
Transformer capacity: 100kVA
Fuse size: WT-3
Characteristic: gTr
How to use
The fuse link should be installed by a qualified electrician into a compatible WT-3 size fuse base. Ensure that the power supply is disconnected before insertion or replacement. Align the fuse correctly within the base contacts and use an appropriate fuse handle or extraction tool to ensure secure seating. Once installed, verify that the visual indicator is intact and the connection is tight before restoring power to the system.
What to consider before purchase
Verify the transformer power rating matches the 100kVA specification
Ensure the fuse base is compatible with the WT-3 size
Confirm that the system voltage is 400V
Check that the gTr characteristic is appropriate for the specific protection requirements of your installation
Usage recommendations
Always use appropriate personal protective equipment when handling electrical components and ensure the circuit is de-energized before performing any maintenance or replacement of the fuse link.

## FAQ

### How much does the Eti-Polam NH3 144A gTr 100kVA 400V Fuse Link cost, and is it available for purchase?

The price is 45.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 15.07.2026 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/12426493/68724098_large.webp