Solar cable red 25m 6mm² IEC62930 – SOLR625 for efficient PV applications

The SOLR625 solar cable (25 metres, 6mm²) in red is the ideal solution for photovoltaic installations that require a high current carrying capacity and minimal energy losses. With a length of 25 metres and a reinforced cross-section of 6mm², this cable offers the perfect balance between flexibility and performance – whether for string cabling on the roof or the connection of powerful balcony power plants. The red colour is used for the standard-compliant identification of the positive pole (+).

Manufactured according to the international standard IEC 62930, this cable meets the strictest requirements for safety and durability in modern PV systems up to 1500V DC. The generous cross-section ensures that even with modules with high output currents, heat development is minimised and the efficiency of your system is maximised.

Highlights at a glance

• Certified safety: Complies with IEC 62930 (H1Z2Z2-K) for permanent use in photovoltaic DC systems up to 1500V.
• High efficiency: The 6mm² cross-section minimises electrical resistance and significantly reduces voltage drops compared to standard cables.
• Optimal project length: 25 metres enable tailor-made sections for medium distances without unnecessary interfaces or plug-in connections.
• Weather & UV resistant: The high-quality XLPO double insulation protects the cable against embrittlement from the sun, ozone and extreme weather conditions for decades.
• Corrosion-protected conductor: Fine-stranded, tinned copper ensures consistently optimum conductivity and offers effective protection against oxidation in humid environments.
• Extreme temperature range: Reliable operation under even the most adverse conditions from -40°C to +90°C (short-term peaks up to +120°C).

Areas of application

The SOLR625 is versatile for demanding PV projects:

• Modern roof systems
  • Ideal for connecting high-performance modules (500Wp+) to the inverter to transport high currents without loss.
• Balcony power plants & stand-alone systems
  • Perfect when the inverter or charge controller is installed a little further away and every watt of power is to be maintained.
• Motorhomes & marine
  • Robust cabling for self-sufficient systems where vibrations, humidity and high loads are a factor.

Assembly & safety instructions

• Professional assembly
  • Use only MC4 connectors that are explicitly approved for 6mm² cable for this cross-section. A gas-tight crimp is essential for long-term safety.
• Observe bending radii
  • Despite the high flexibility of the fine stranded conductors, the cable should not be bent below the minimum permissible bending radius to preserve the insulation.
• Mechanical protection
  • For entries or sharp edges, use protective tubes or edge protection profiles to permanently ensure the integrity of the double insulation.

Features

FAQs about the solar cable red 25m 6mm²

Is 6mm² necessary for 25 metres in length?

It is recommended. Especially for modern modules delivering currents of 13A to 18A, 6mm² offers significantly more protection against heating and reduces the voltage drop. It is a future-proof option for maximum yields.

Can the cable be laid indoors?

Yes. Thanks to the flame-retardant and halogen-free properties of the XLPO insulation, the SOLR625 can be safely installed in buildings to carry energy from the roof to the technical room.

Does the cable fit standard MC4 connectors?