# ELKO-BIS 4.1 CU 4-Hole Copper Test Connector 57x57x57mm

**URL:** https://aio.lv/en/product--elko-bis-41-cu--12449905
**Data updated:** 2026-05-18 02:45 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** ELKO-BIS
**Manufacturer code:** 4.1 CU
**EAN:** 5907676739157
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--elko-bis-41-cu--12449905

## 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

The ELKO-BIS 4.1 CU is a high-quality 4-hole test connector made of copper, designed for reliable lightning protection and grounding systems. Measuring 57x57x57mm, this component allows for easy inspection and disconnection of conductors within an electrical installation. Its robust copper construction ensures excellent conductivity and long-term durability in various environmental conditions.

## Long description

The ELKO-BIS 4.1 CU is a professional 4-hole test connector engineered for high-performance lightning protection and grounding systems. Crafted from high-quality copper, this component provides a secure and reliable connection point for conductors, facilitating essential maintenance and system testing. Its compact 57x57x57mm design ensures it integrates seamlessly into standard electrical installations while maintaining structural integrity.
Advantages
The primary benefit of this copper test connector is its exceptional electrical conductivity, which is vital for the effective dissipation of lightning strikes and fault currents. The robust copper material offers superior resistance to corrosion and environmental degradation, ensuring a long service life even in demanding outdoor conditions. Its 4-hole configuration allows for versatile conductor routing, making it a flexible solution for complex grounding networks that require periodic inspection and testing.
Suitable for
Lightning protection systems
Grounding and earthing installations
Electrical infrastructure maintenance
Industrial and residential grounding networks
When it may not be suitable
This connector is specifically designed for copper-based systems. It may not be suitable for installations where galvanic corrosion could occur due to contact with incompatible metals, such as aluminum, without proper bimetallic transition components. It is also not intended for high-tension power transmission lines or applications requiring specialized mechanical clamping forces beyond standard grounding requirements.
Key specifications
Material: Copper
Configuration: 4-hole design
Dimensions: 57x57x57mm
Application: Lightning protection and grounding
How to use
To install the ELKO-BIS 4.1 CU, ensure the conductors are clean and free of oxidation. Position the conductors within the connector housing and align them with the four holes. Secure the assembly using the integrated fastening mechanism, ensuring that all connections are tightened to the manufacturer's recommended torque to maintain optimal electrical contact. Once installed, the connector serves as a permanent test point, allowing technicians to disconnect or measure the grounding circuit during routine safety inspections.
What to consider before purchase
Verify compatibility with your existing conductor material to prevent galvanic corrosion.
Ensure the dimensions are suitable for your specific mounting space and conductor gauge.
Confirm that the installation environment is appropriate for copper components.
Usage recommendations: Regularly inspect the connection points for signs of environmental wear or loosening. Ensure that all grounding system components are installed by qualified personnel in accordance with local electrical safety regulations.

## FAQ

### How much does the ELKO-BIS 4.1 CU 4-Hole Copper Test Connector cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 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. 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 ELKO-BIS 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 ELKO-BIS 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/12449905/68752699_large.webp