Solar Cables

A solar cable is a single-core cable made for the DC side of photovoltaic systems, with a tinned fine-stranded copper conductor and cross-linked halogen-free insulation and sheath. It is used outdoors to connect solar panels to each other, and panel strings to the DC combiner box and the inverter, in rooftop and ground-mounted solar power plants. In this category, HES Kablo H1Z2Z2-K solar cables are sold by the meter in cross-sections such as 1x4 mm², 1x6 mm², 1x10 mm², 1x35 mm² and 1x120 mm². Choose the cross-section according to the current of the panel string, the voltage drop depending on line length, the installation method and the ambient temperature; also check that the connector matches the cable cross-section and outer diameter. The type code H1Z2Z2-K is defined in the EN 50618 standard; these cables have a rated voltage of 1.5 kV DC and are resistant to UV rays, ozone and weather conditions. General-purpose cables such as PVC-insulated NYAF or TTR do not replace solar cable, since they are not designed for long-term resistance to sunlight and outdoor temperatures.

Products

How to choose Solar Cables

A solar cable is a single-core cable made for the DC side of photovoltaic systems, with a tinned fine-stranded copper conductor and cross-linked halogen-free insulation and sheath. It is used outdoors to connect solar panels to each other, and panel strings to the DC combiner box and the inverter, in rooftop and ground-mounted solar power plants.

  • Clarify the circuit duty first: power distribution, control, fire safety, Ethernet or analog signal.
  • Compare conductor cross-section, core count, insulation and shielding against the installation route.
  • Switch to the proper cable family early when flex duty, oil resistance, halogen-free jacket or fire integrity is required.

Frequently asked questions

What is Solar Cables and where is it used?

A solar cable is a single-core cable made for the DC side of photovoltaic systems, with a tinned fine-stranded copper conductor and cross-linked halogen-free insulation and sheath. It is used outdoors to connect solar panels to each other, and panel strings to the DC combiner box and the inverter, in rooftop and ground-mounted solar power plants.

What should I compare when choosing Solar Cables?

Choose the cross-section according to the current of the panel string, the voltage drop depending on line length, the installation method and the ambient temperature; also check that the connector matches the cable cross-section and outer diameter.

Where can I find technical details for Solar Cables products?

General-purpose cables such as PVC-insulated NYAF or TTR do not replace solar cable, since they are not designed for long-term resistance to sunlight and outdoor temperatures.

Solar Cables Selection Guide: Technical Criteria & Application Standards