Solar extension cable 5m 6mm² - red/black for reliable PV applications (set)

The solar extension cable set (5 metres, 6mm²) is the ideal solution for moderate distances within a photovoltaic installation where maximum efficiency and future viability are paramount. If you have to bridge distances between your solar modules or want to connect to an inverter or charge controller, this generous cross-section of 6mm² offers the assurance that not even a watt of power is lost, even at peak currents.

The set includes two high-quality, double-insulated solar cables: a red cable for the positive pole (+) and a black cable for the negative pole (-). Both ends are professionally pre-assembled with MC4-compatible plugs and sockets. Thanks to the length of 5 metres and the solid cross-section of 6mm², this set is technically excellently dimensioned for virtually all common PV applications (balcony power stations, stand-alone systems, rooftop systems).

Highlights at a glance

• Maximum efficiency: The 6mm² cross-section minimises electrical resistance to an absolute minimum, which is particularly advantageous for high currents.
• Plug & Play installation: The cables are fully assembled on both sides with MC4-compatible connectors, so no special crimping tool is required.
• Safe identification: The clear colour coding in red (+) and black (-) effectively prevents incorrect polarity during connection.
• Weatherproof & Durable: The special sheath made of cross-linked polyolefin is UV-resistant, ozone-resistant and withstands extreme temperatures from -40°C to +90°C.
• IP67 protection rating: The connectors are absolutely dustproof and protected against splashing water and rain when plugged in.
• High-quality conductor: Tinned electrolytic copper ensures excellent corrosion resistance and permanently high conductivity.

Areas of application

This 5-metre extension is designed for a variety of application scenarios:

• Balcony power stations
  • Perfect for bridging the distance between the solar modules and the inverter if the latter is mounted offset on the railing or on the wall.
• String cabling
  • Bridging gaps between module fields on pitched roofs or flat roof supports.
• Motorhomes & Camping
  • Connecting solar modules to the charge controller, so that the vehicle can be parked in the shade while the panels are positioned in the sun.

Assembly & safety instructions

• No measurable voltage drop
  • At a length of 5 metres, the voltage loss is negligible even for 12V systems. This makes the cable the ideal choice for perfectionists who want to achieve maximum yields.
• Strain relief
  • Fix the cables to the mounting frame with UV-resistant cable ties. Avoid mechanical tension on the connectors and module junction boxes.
• Correct latching
  • Make sure that the MC4 connectors audibly click into place when plugging together. This is the only way to ensure that the connection is permanently watertight and safe against arcing.

Features

FAQs about the solar extension cable 5m 6mm²

Why should I choose 6mm² instead of 4mm² for 5 metres?

For maximum future viability. Although 4mm² is often sufficient for 5 metres, 6mm² offers greater mechanical stability and is already well equipped for modern modules with currents over 15A. In addition, the cable stays cooler under high loads.

Do the connectors fit modules of all well-known brands?

Yes. These cables use MC4-compatible standard connectors. These fit mechanically and electrically perfectly to the connections of manufacturers such as Trina, Jinko, JA Solar or Canadian Solar.

Can I also leave these cables outdoors?

Yes, they are designed for this purpose. The cables are certified to common PV standards. They are resistant to ammonia, ozone and UV radiation and can be used outdoors for decades.