The 50-meter, 4 mm² blue halogen-free electrical cable (H07Z1-K) is the ideal solution for safe, efficient, and environmentally friendly electrical installations. Specifically designed for wiring in homes, offices, commercial premises, and for connecting high-energy-demand appliances, this flexible cable guarantees optimal performance and exceptional durability. Thanks to its advanced halogen-free insulation, this cable does not emit toxic or corrosive gases in the event of a fire, making it a top choice for meeting the strictest building safety regulations.

The 4 mm² cross-section offers the perfect conductivity for power circuits, general-purpose sockets, and powering electrical appliances that require higher wattage. Its design, featuring a flexible Class 5 copper conductor, greatly facilitates routing through conduit and junction boxes, reducing installation time and effort for both professionals and DIY enthusiasts. Furthermore, the blue finish complies with standard color codes for identifying the neutral conductor, simplifying wiring in electrical panels and switches.

Features of the 4 mm² Halogen-Free Electrical Cable

• Cable type: Single-core flexible wire H07Z1-K (AS).


• Conductor section: 4 mm², ideal for power circuits and household appliances.


• Roll length: 50 meters, a convenient format for small and medium-sized installations.


• Color: Blue (standard identification for neutral conductor).


• Insulation: Halogen-free thermoplastic compound, with low smoke emission and non-flame propagating properties.


• Rated voltage: 450/750 V, suitable for domestic and light industrial installations.


• Maximum temperature at the conductor: 70 ºC in normal service.


• Product reference: B10317300.

Frequently Asked Questions about Thread H07Z1-K

What type of installations is this 4 mm² cable recommended for?

This cable is primarily recommended for indoor installations in homes and public buildings, run through conduit in walls or ceilings. It is ideal for power circuits supplying washing machines, dryers, ovens, dishwashers, and general-purpose power outlets that require a 4 mm² cross-section according to the Low Voltage Electrotechnical Regulations.

What are the advantages of it being a halogen-free cable?

The main advantage is passive fire safety. Because it contains no halogens (such as chlorine or fluorine), the insulation does not generate toxic gases or acids that could damage the respiratory system or sensitive electronic equipment, and it also emits a minimal amount of smoke, facilitating visibility during a possible evacuation.

Is it easy to pass through the installation pipes?

Yes, because it's a flexible copper conductor (class 5), it offers great malleability. This allows it to be bent and threaded more easily through corrugated pipes and sharp bends compared to traditional rigid cables.