Solar Cable

A Solar cable is a specialised electrical cable that connects solar panels to inverters, charge controllers, and batteries, carrying the energy a solar panel cable collects safely and efficiently through the system. Selecting the appropriate cable and installing it properly is essential for the reliable and safe operation of a solar power system.

RS Australia supplies solar cable in a range of sizes and core options from brands including Helukabel, Seeit, and AXINDUS, for rooftops, sheds, and off-grid setups across Australia.

Types of Solar Cables

A solar cable has to withstand sunlight, heat, cold, rain, and humidity for years, so every type should be UV-resistant and weather-resistant, with a high temperature rating to prevent melting or damage. Insulation is designed to protect against electrical faults, and common insulation materials include cross-linked polyethylene (XLPE) and ethylene propylene rubber (EPR). The main types are:

Single-Core Solar Cable

A single-core solar cable carries one conductor per cable, with the positive and negative runs laid separately between the array and the inverter. Copper is the usual conductor because of its excellent conductivity and durability, and you can browse copper wire for related options.

Twin-Core Solar Cable

A twin-core solar cable combines two conductors in one jacket, which can simplify installation where the positive and negative runs follow the same path. A solar DC cable of this kind keeps the run neat and the cable count low.

4mm² & 6mm² Solar Panel Cable

Cable size depends on the requirements of the solar power system. Larger systems with higher power output may need thicker cable, such as 4 mm² or 6 mm² solar panel cable, to minimise voltage drop. Aluminium conductors cost less but have lower conductivity than copper.

Solar Extension Leads with Connectors

Solar extension leads come with compatible connectors, such as MC4 connectors, already fitted for easy and safe connections between panels and other system components. Photovoltaic cable must also meet the IEC 62930 standard in Australia, which you should check for before your installation.

Applications of Solar Cables

A solar cable ties together photovoltaic (PV) systems of every size, from a tradie wiring a commercial roof to a DIYer setting up a shed or caravan system. Each application calls for the right solar power cable, so review specifications before you order from RS Australia to match the cable to the system voltage, current, and environment. Whichever way you use the power, the cable is what carries it safely from the panels to where it is needed.

Residential Rooftop Solar

Residential rooftop systems use solar panel wire to link each string of panels to the inverter, and the cable has to cope with the Australian sun and weather year after year, so UV and weather resistance matter on every run.

Commercial & Industrial Solar Systems

Commercial and industrial systems in Australia cover larger arrays on warehouses, farms, and factory roofs, where longer cable runs and higher power output make correct sizing important. A solar panel power cable rated for the system helps limit voltage drop.

Off-Grid, Caravan & RV Solar

Off-grid homes, caravans, and RVs use solar power wire to connect portable or roof-mounted panels to charge controllers and batteries, powering lights, fridges, and devices far from the grid. A durable, weather-resistant cable is especially important when repairs are a long drive away.

Battery Energy Storage Systems

Battery energy storage systems (BESS) rely on cable between the array, charge controller, and battery bank, so the energy generated by day can be stored and used when it is needed. Correctly sized cable helps the whole system run efficiently.

Solar Street Lighting & Water Pumping

Solar street lights and water pumps use PV wire for solar panels to connect the panel to the light or pump controller. They suit rural roads, farms, and remote bores where mains power is impractical.

Solar Cable at RS Australia

RS Australia is a trusted supplier and distributor of solar cable, carrying renowned brands like Helukabel, Seeit, and AXINDUS in sizes from 2 mm² to 10 mm². Add hook up wire for the rest of the wiring.

To place an order, simply cart out online or by phone. Enjoy free delivery on online orders above $60 (excluding GST) for business accounts, or above $80 (excluding GST) for private and guest customers. Orders placed before 5pm AEST from Monday to Fridays, qualify for next working day delivery on locally stocked items.

For full delivery terms, options, and fees, visit the RS Australia delivery page.