Single-core photovoltaic cable Helukabel SOLARHELU 1×6 mm² 1500 V DC H1Z2Z2-K black

Helukabel SOLARHELU single-core photovoltaic cable 1×6 mm² is designed for DC applications in photovoltaic systems up to 1500 V. The H1Z2Z2-K construction provides insulation and sheath materials suitable for outdoor use, roof and ground-mounted string cabling, as well as module-to-module and module-to-inverter connections. Black outer insulation ensures UV resistance and a discreet appearance on most installations while maintaining the electrical performance required for PV arrays.

Advantages

The cable offers a single, flexible copper conductor with a 6 mm² cross-section that balances current-carrying capacity and ease of routing. Its H1Z2Z2-K classification indicates halogen-free materials with reduced smoke and corrosion in the event of fire, and outer insulation formulated for long-term outdoor exposure and UV resistance. Rated for continuous operation at 1500 V DC, the cable is suitable for higher-voltage string designs, enabling reduced string losses and simpler system layout where higher DC voltages are used.

Suitable for

• Interconnection of PV modules in rooftop and ground-mounted arrays
• Module-to-inverter DC cabling within PV systems
• String cabling in commercial and utility-scale photovoltaic installations

Key specifications

• Conductor: single copper core, class and strand design appropriate for flexible PV cabling
• Conductor cross-section: 6 mm²
• Rated voltage: 1500 V DC
• Construction type: H1Z2Z2-K (halogen-free, low smoke)
• Outer sheath color: black for UV resistance and outdoor suitability
• Application environment: outdoor rooftop and ground-mounted PV installations

How to use

Install the SOLARHELU 1×6 mm² cable in accordance with local electrical codes and PV system design requirements. Route the cable between modules, strings and the inverter using appropriate supports and clips to avoid mechanical stress or abrasion. Ensure proper stripping of the insulation and secure crimp or lug connections to maintain low contact resistance. Use compatible PV connectors or junction boxes rated for 1500 V DC and verify polarity before energizing the system. Maintain minimum bending radii as recommended for single-core cables and protect exposed runs from sharp edges and prolonged mechanical wear.

Usage recommendations

Before installation, confirm compatibility with system voltage and connector types. For long outdoor runs consider additional protection (conduit or trunking) where mechanical damage or concentrated UV exposure is expected, and schedule periodic visual inspections to check for wear or environmental damage.