Wire 4mm² | copper | flexible | single-core | multi-stranded | H07V-K 4 | 1m | black

Single-core wires are also called monolithic wires,
while multi-core wires are flexible wires.

Wires usually have a single conductor covered with an insulating layer.

Cables have several insulated wires, covered with a common sheath.

Conductor properties of wires:

The resistance of copper conductors is lower (0.017Ω) than that of aluminum (0.028Ω),
but copper has better conductivity.
Copper has better electrical and thermal conductivity than aluminum.
Copper wires are more flexible, more resistant to corrosion, and more durable.
Aluminum wires quickly oxidize upon contact with air, forming a film that weakens the contact.
Copper wires carry higher currents than aluminum wires.
Copper conductors are denser than aluminum. Therefore, copper wire is heavier.

The cross-sectional area of wires is chosen according to the power of specific equipment,
for example: for a 1kW load, a 1.57 mm² cross-sectional area of the conductor is required.
For aluminum wires: 5A per 1mm², and for copper wires: 8A per 1mm². 

This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.

CE certification means that the product has been evaluated according to the main criteria:

Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purpose

CE marking allows this product to:

be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environments

The CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.

What does this mean for you as a buyer?

Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions