Solar Cables Selection Guide: Technical Criteria & Application Standards
Solar Cables selection guide: technical parameters, mounting and compliance standards, and HES Kablo comparison.
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. The Solar Cables category on Welibaba includes 16 active models from leading manufacturers such as HES Kablo.
Key Technical Parameters for Selecting Solar Cables
To specify the right Solar Cables model for your panel or installation, verify the following parameters against your engineering schedule:
| Parameter | Typical Catalog Values | Verification Note |
|---|---|---|
| Flame Retardance / Fire Performance | Düşey alev yayılma: EN 60332-1-2, IEC 60332-1-2, DIN EN 60332-1-2 (VDE 0482-332-1-2); Duman yoğunluğu (ışık geçirgenliği): EN 61034-2, IEC 61034-2 | Verify against project schedule and load calculation |
| Rated Voltage | DC: 1, 5 kV; AC: 1, 0/1, 0 kV | Verify against project schedule and load calculation |
| Storage Temperature | Maks. +40 °C | Verify against project schedule and load calculation |
| Outer Sheath Material | Halojensiz çapraz bağlı kılıf malzemesi (EN 50618, TS EN 50618) | Verify against project schedule and load calculation |
Installation, Compatibility, and Commissioning Checklist
- Electrical & Mechanical Matching: Confirm that rated voltage, current capacity, and mounting dimensions align with the upstream and downstream components in Cables.
- Environmental & Enclosure Rating: Check IP protection class, housing material, and terminal capacity for dusty, humid, or high-vibration industrial environments.
- Related Product Groups: If your application calls for a different form factor or rating, compare sibling categories such as Battery Jumper Cables, Plugged Appliance & Power Cords, Low Voltage Cables.
Frequently Asked Questions
What is the first parameter to check when selecting Solar Cables?
Start by confirming the circuit's rated electrical values and physical mounting dimensions, then use the technical attribute filters on the Solar Cables page to narrow down compatible series.
Which Solar Cables brands are available on Welibaba?
Welibaba currently stocks 16 active models in this category from manufacturers including HES Kablo, complete with verified specifications and unit pricing.
How can I compare Solar Cables models by manufacturer part number?
You can search directly by manufacturer SKU/order code or use the category filter panel to compare equivalent models across brands side by side.