​Solar Cable & Accessories

Solar cable is designed specifically for external use where it faces constant UV exposure and extreme weather. It features a specialized double insulation layer that prevents the jacket from becoming brittle or cracking under the harsh Australian sun. Standard automotive cable is typically intended for use inside a vehicle or engine bay and lacks the high level of UV protection required for long term mounting on a roof rack or caravan roof.

Solar cabling also uses finely stranded tinned copper to resist corrosion and maintain high conductivity in humid or coastal environments. Choosing the correct cable type is critical for the safety and efficiency of your off grid setup. Using automotive wire in place of solar cable can lead to insulation failure and electrical shorts over time.

Selecting the correct size involves matching the cable gauge to the total current of your panels and the length of the run. As the distance between your panels and regulator increases, the resistance in the wire causes voltage to drop. This can stop your battery from reaching a full charge even in peak sun. Using a thicker cable for longer runs or higher wattage arrays is a practical way to maintain charging efficiency.

You should aim for a voltage drop of less than three percent across your system. For a standard 200W panel on a 12V setup, a 6mm twin core cable is typically sufficient for runs up to five meters. If you are building a larger array or mounting panels further away, you must increase the cross sectional area of the copper. Browse our range of 12V Solar Panels to determine your total output, or explore our Solar Controllers to find a matching regulator for your setup.

Most fixed glass solar panels are supplied with MC4 connectors pre installed on the output leads. These connectors provide a watertight link specifically designed for permanent outdoor mounting on roof racks or caravans. Portable equipment, such as solar blankets and folding mats, more commonly features Anderson plugs to allow for quick connection and disconnection at your campsite or battery box.

The correct connector type depends on your mounting method and how often you move your gear. If you are mixing fixed panels with portable units, you may require an adaptor lead to bridge the two connection styles safely. Browse our range of MC4 Connectors for permanent installations, or explore our selection of Anderson Plugs for your portable setup.

An MC4 connector is the industry standard single contact electrical connector used for linking solar panels and connecting them to an off grid power system. It features a locking mechanism that provides a secure and watertight bond, specifically designed to handle high DC voltage and the environmental stress found on the roof of a 4WD or caravan.

The "MC" refers to the original manufacturer multi contact, while the "4" indicates the 4mm diameter of the contact pin. These connectors are UV resistant and typically carry an IP67 rating, meaning they are fully protected against dust and can withstand water exposure during heavy rain. This durability makes them the preferred choice for permanent installations where the wiring is exposed to the elements. To create a safe and professional connection, you must use specialized gear to join the terminals to your cable. Browse our range of MC4 Connectors for your build, or explore our Crimping Tools to complete your installation.

Yes, solar cables can be extended to bridge the gap between your panels and your battery bank, but you must consider the increased resistance that comes with added length. Every extra meter of wiring increases the potential for voltage drop, which can limit the charging performance of your system.

Using a thicker gauge Solar Cables & Leads is a smart way to maintain efficiency when extending your run. This helps keep the energy harvested on your roof rack reaching your storage without being lost as heat. Make sure any joins are made using professional MC4 Connectors to keep the system watertight and secure on corrugated tracks. This approach prevents moisture from entering your connections and protects your setup from the elements during long distance travel. By maintaining high quality links, you reduce the risk of power loss and keep your off grid system performing at its peak.

Fusing your solar cable is a necessary safety step to protect your wiring and vehicle from electrical shorts or overloads. A fuse acts as a sacrificial link that breaks the circuit if the current flow exceeds the safe limit of the cable. While fusing between the panel and the regulator is recommended for multi panel arrays, you must always install a fuse or circuit breaker between the solar controller and the battery bank to protect against the high current a battery can discharge during a fault.

Using the correct protection helps keep your system stable and prevents damage to high value components like your battery and regulator. Browse our selection of Circuit Breakers & Fuses to safeguard your installation, or find a compatible match in our Solar Controllers collection.

The most effective way to run cables into your vehicle is by using a dedicated cable entry gland. This component provides a secure, weatherproof point for wires to pass through a roof or canopy without allowing water, dust, or red dirt to enter the cabin. Glands typically feature a rubber seal that tightens around the cable to maintain a watertight bond even on corrugated tracks.

Most travelers choose a double entry ABS gland for roof rack setups because it can be bonded to the surface with high strength adhesive. This removes the need for extra holes and helps protect your interior from leaks during tropical downpours. Browse our range of Cable Glands to find a suitable entry point, or explore our Solar Accessories for more installation gear.