Helukabel SOLARFLEX-X H1Z2Z2-K UV 1×10mm² black – 500m PV cable (1500V DC)

The Helukabel SOLARFLEX-X H1Z2Z2-K UV 1×10mm² black is a heavy-duty, crossed-linked PV cable for the DC cabling of solar panels. You use this cable for routes where you just want more “body”: longer distances, higher currents or commercial installations where low voltage drop and durability are important. This version is supplied on a 500-metre reel – ideal for installers and larger projects.

What do you use 10mm² PV cable for?

• Long DC routes between solar panels/string box and inverter.
• Field installations and commercial roofs where cables travel longer routes.
• Pathways with higher currents or where you deliberately want to reduce voltage drop.
• Installations with 1500V DC strings (where allowed and matching inverter/grid code).

Key benefits

• 1500V DC suitable – designed according to DIN EN 50618 (H1Z2Z2-K) for modern PV systems.
• 10mm² tinned copper (class 5) – low resistance, smooth to handle and extra corrosion resistant.
• UV, ozone and weather resistant – suitable for long-term outdoor use on roof and facade.
• Halogen-free & flame-retardant – less smoke and no corrosive gases in case of fire.
• Direct burial permitted – preferably in pipe/sand bed for extra protection.
• 500m reel – fewer couplings, faster work, neat continuous lengths.

Technical specifications (1×10mm²)

• Cable type: SOLARFLEX-X H1Z2-K UV
• Conductor: tinned copper, fine-stranded (class 5)
• Cross section: 1×10mm²
• Colour: black
• Rated voltage: 1000/1000V AC and 1500/1500V DC
• Test voltage: 6,500V
• Temperature range (fixed): -40°C to +90°C
• Permissible conductor operating temperature: up to +120°C
• Min. bending radius (fixed): 5× outer diameter
• Outside diameter: approx. 6.9 – 7.7 mm
• Weight: approx. 126 kg/km (≈ 63 kg per 500m, indicative)
• Article number (black 1×10mm²): 713532

Installation tips (practical and important)

• 1. Separate plus/minus neatly
  In PV systems, black is often used as minus (-). Always label clearly and keep polarity consistent, especially in string boxes and service.
• 2. Pay attention to voltage drop
  10mm² is often chosen to reduce voltage drop for longer lengths. Would you like us to do the math? Send the number of panels per string, inverter type and cable lengths.
• 3. No sharp kinks
  Observe at least the bend radius (5× outer diameter). Especially with feed-throughs and cable glands: a wide bend is preferable to a sharp kink.
• 4. Ground cable? Do it neatly
  Direct burial is permitted, but we almost always recommend: in a casing with a sand bed and warning tape. This prevents damage when digging and extends the service life.
• 5. Use good connectors
  Choose good quality MC4-compatible connectors and ensure correct crimping jaws for 10 mm². Poor crimping = heat = misery.
• 6. Do not forget DC protection
  Consider correct DC switch/fuses/SPDs according to the design and inverter manual. Cable is only one part of a safe DC chain.
• 7. Install when cold
  Observe minimum processing temperature. Cable becomes stiffer in cold weather; roll out gently and do not force bends.

Buy Helukabel 500m black 10mm² at Stralendgroen

With the Helukabel SOLARFLEX-X 10mm² black 500m you get a real installer’s cable: heavy, flexible, weatherproof and suitable for modern PV systems up to 1500V DC. Perfect for longer DC routes where you don’t want to hand out voltage drop presents.