# Solarflex®-X Copper Cable 4 mm² EN50618 SOLARFLEX®-X H1Z2Z2-K Cu 4mm² for Solar PV

**URL:** https://aio.lv/en/product--solarflexr-x-solarflex-x-40bk--11166941
**Data updated:** 2026-02-14 19:33 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** SOLARFLEX®-X
**Manufacturer code:** SOLARFLEX-X-4.0BK
**EAN:** 3100000779146
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.79 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 3.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--solarflexr-x-solarflex-x-40bk--11166941

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

SOLARFLEX®-X ballast cable EN50618 H1Z2Z2-K is a 4 mm² copper conductor cable designed for solar PV installations and related DC applications. Manufactured to EN50618 standards, it provides a durable, UV- and weather-resistant insulation suitable for outdoor array wiring, string connections and junctions. Use for reliable long-term DC power routing on residential and commercial rooftop systems.

## Long description

SOLARFLEX®-X Copper Cable 4 mm² EN50618 SOLARFLEX®-X H1Z2Z2-K Cu 4mm² for Solar PV is a 4 mm² single-core copper conductor cable manufactured to EN50618 standards for DC applications in photovoltaic systems. The cable features weather- and UV-resistant insulation formulated for outdoor exposure and elevated temperatures commonly encountered on rooftop arrays. It is intended for fixed DC wiring, string interconnections and junctions where reliable long-term performance and compliance with industry standards are required.
Advantages
The cable delivers consistent electrical conductivity and mechanical flexibility due to its fine-stranded copper core and optimized cross-sectional area. Insulation and sheath compounds meet EN50618 requirements, offering enhanced resistance to UV radiation, ozone and routine environmental stress. The product is suitable for outdoor routing on racks and within cable trays, providing stable insulation properties over extended service life and under typical solar array temperature cycles.
Suitable for (tasks / use cases)
 DC string wiring on residential and commercial rooftop PV systems
 Interconnections between modules and junction boxes
 Fixed outdoor cable runs on mounting structures and trays
 Replacement of aging or non-compliant DC conductors in PV arrays
Key specifications
 Conductor: fine-stranded copper, nominal cross-section 4 mm²
 Standard compliance: manufactured to EN50618 requirements for solar DC cables
 Insulation/sheath: UV- and weather-resistant compound suitable for outdoor exposure
 Voltage rating: suitable for low-voltage DC photovoltaic circuits (as per EN50618 application)
 Temperature range: designed for operating conditions typical of PV systems (including elevated array temperatures)
 Flexibility: fine-stranded construction for easier routing and terminations
How to use
Plan cable routing according to the PV system layout and applicable electrical standards. Use appropriate tools and cable glands for secure terminations and ensure conductor cross-section matches system current calculations. Route the cable along mounting rails or inside trays when possible, avoiding sharp edges and points of mechanical stress. When making connections, follow torque specifications of connectors and ensure insulation is intact; if the outer sheath is damaged, replace the affected section or the entire cable run. Adhere to local codes for DC isolation, labeling and protective measures against accidental contact.
Usage recommendations
For long-term reliability, install the cable with proper strain relief, secure supports at regular intervals and UV-protective routing where extended direct sunlight occurs. Verify compatibility of connectors and junctions with the 4 mm² conductor and confirm that current-carrying capacity suits the PV string design. Regular visual inspections are recommended to identify mechanical damage or abrasion and to ensure continued insulation integrity.

## FAQ

### How much does the Cable SOLARFLEX®-X 4 mm² EN50618 cost, and is it available for purchase?

The price is 3.79 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 02.07.2026 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 SOLARFLEX®-X 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 SOLARFLEX®-X 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/11166941/61917050_large.webp