# NH fuse knife switch Eti-Polam 004941213 — NH1 250A, ZI type

**URL:** https://aio.lv/en/product--eti-polam-004941213--12397198
**Data updated:** 2026-04-27 22:29 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** Eti-Polam
**Manufacturer code:** 004941213
**EAN:** 5904722977174
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-004941213--12397198

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.79 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

Eti-Polam NH fuse knife switch model 004941213 (NH1 250A, ZI) is a replaceable NH1-size fuse holder designed for low-voltage distribution and protection systems. It accepts NH-format cartridges rated for 250 A and provides a secure knife contact for fuse insertion and disconnection. Suitable for switchgear, distribution panels and industrial protection applications where NH cartridge fuses are used.

## Long description

Eti-Polam NH fuse knife switch 004941213 (NH1 250A, ZI type) is a replaceable NH1-size fuse holder intended for low-voltage distribution and protection systems. It is designed to accept NH-format cartridge fuses rated up to 250 A and provides a robust knife contact mechanism for secure insertion, reliable electrical connection and manual disconnection of NH fuses. The construction suits installation in switchgear, distribution panels and industrial protection setups where NH cartridge fuses are the selected protection method.
Advantages
The NH1 knife switch offers a compact footprint and standardized NH1 dimensions for compatibility with common NH cartridge fuses. Its knife contact design ensures stable conductivity and straightforward manual operation for inserting and removing fuses. The replaceable holder format simplifies maintenance and replacement without extensive rewiring, and the ZI type provides a defined contact geometry for repeatable connections.
Suitable for
 Low-voltage switchgear and distribution boards using NH cartridge fuses
 Industrial panels requiring 250 A overcurrent protection
 Application areas where a manual knife-type fuse holder is preferred for serviceability
 Retrofit or replacement of existing NH1-size holders in distribution installations
When it may not be suitable
This NH1 fuse knife switch is not intended for use with fuse cartridges of different NH sizes or ratings above 250 A. It is a manual, replaceable holder and does not include automatic switching or remote operation features; systems that require motorised operation or remote trip/status signalling may require a different product. Environments demanding specific ingress protection, corrosion resistance or non-standard materials should be checked against the holder's construction details before installation.
Key specifications
 Rated current: 250 A
 Fuse format compatibility: NH1 cartridge fuses
 Contact type: knife (manual insertion/removal)
 Intended use: low-voltage distribution and protection systems
 Mounting: panel/switchgear-replaceable holder format
How to use
Mount the replaceable NH1 holder into the designated slot inside the switchgear or distribution panel using compatible fixing points. Ensure power is isolated before inserting or removing NH cartridges. Insert the NH cartridge fuse into the holder so the cartridge engages the knife contacts fully; verify secure mechanical seating and firm electrical contact. For removal, isolate the circuit and withdraw the cartridge by operating the knife contact mechanism. Follow local electrical safety regulations and the switchgear manufacturer's instructions when performing installation, replacement or maintenance.
What to consider before purchase
 Confirm compatibility with NH1-sized cartridge fuses and a 250 A rating.
 Verify physical dimensions and mounting method match your switchgear or panel.
 Ensure the manual knife-type operation meets your service and safety requirements.
 Check environmental and mechanical requirements (temperature, humidity, vibration) for your installation.
Usage recommendations
Use in systems with clearly defined isolation procedures and train personnel on safe fuse handling. Regularly inspect contacts for signs of wear, overheating or corrosion and replace the holder if contact integrity is compromised.

## FAQ

### How much does the Eti-Polam NH1 250A ZI knife fuse holder 004941213 cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 321 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 05.08.2026 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/12397198/68680694_large.webp