Solar Cables

Twin PV Solar Cable for Caravan, RV, Marine and Off-Grid Systems

Solar cable carries DC power from your panels to the charge controller, so conductor size, voltage rating and outdoor durability all affect system performance and safety. This collection includes purpose-built PV solar cable in two common sizes: 4mm² twin 1000V PV1-F and 6mm² twin 1500V IEC 62930. Each size is available cut to length or on a 100m roll.

The twin configuration runs positive and negative conductors together. This keeps roof runs, cable entry glands and conduit routes neat on caravans, motorhomes, boats, 4WD canopies, tiny homes and fixed off-grid arrays.

Why Use Dedicated PV Cable?

Standard automotive wire is not designed for constant UV exposure, heat cycling or the higher DC voltages found in series-wired solar arrays. PV cable is designed for these outdoor conditions. It is built to handle prolonged sun exposure and harsh weather on rooftops and decks, and it meets the AS 3001 standards for caravan use.

• 4mm² Twin 1000V PV1-F: suits single panels and modest arrays over shorter runs. It is a popular choice for solar panel extension cable runs between a roof panel and the regulator.
• 6mm² Twin 1500V IEC 62930: has a larger conductor for longer runs, higher array currents and lower voltage drop. Its 1500V rating also suits higher voltage series strings.
• Buy by the metre: order the exact length for a single install or a replacement lead.
• 100m rolls: suit installers, fleet fit-outs and larger off-grid or commercial projects.

How to Choose Between 4mm² and 6mm² Solar Cable

The right size depends on three factors: the current your array produces, the total cable run length (positive and negative), and how much voltage drop your system can tolerate. Longer runs and higher currents generally call for the larger 6mm² conductor.

Before you buy, check the cable's current rating against your array's short-circuit current and allow for installation conditions such as bundling or high roof temperatures. Use our DC cable sizing calculator for RVs and caravans to confirm the correct size for your run.

The voltage rating also matters. The 4mm² cable is rated to 1000V, which covers typical 12V and 24V mobile systems and many series strings. The 6mm² IEC 62930 cable is rated to 1500V and gives extra headroom for larger arrays.

Finally, choose how you want to buy:

• Solar cable by the metre suits single installs and replacement leads.
• Solar cable by the 100m roll gives better value on bulk and repeat jobs.

Order the size and length you need today for a cleaner, lower-loss solar installation built for Australian conditions.