3mm Brown Electrical Cable – 500 Metre Roll

The Backbone of Every Quality Caravan & Camper Electrical Installation

Behind every reliable 12V electrical system in a caravan, camper trailer, or touring 4WD is quality cable — properly sized, correctly colour coded, and built to handle the demands of mobile Australian living. The 3mm Brown Electrical Cable on a 500-Metre Roll delivers exactly that — a professional-grade primary wire supply that gives builders, electricians, and serious DIY installers the quantity and quality they need to wire any rig from front to back.

3mm cable — the versatile workhorse of 12V wiring. The 3mm gauge sits in the sweet spot of the primary cable range — heavier than light-duty hookup wire but lighter than heavy battery cable — making it suitable for a wide range of standard 12V caravan and camper circuits. Interior lighting runs, accessory feeds, switch wiring, control circuits, sensor wiring, and secondary distribution runs are all well within the capability of 3mm primary cable. It's the everyday workhorse that forms the bulk of most caravan and camper trailer wiring looms.

Brown colour coding — professional wiring made easy. Colour coding your wiring loom is one of the hallmarks of a quality electrical installation. The brown insulation makes this cable easy to identify within a wiring loom, simplifying future fault-finding, circuit tracing, and maintenance — whether that's done by the original installer or an auto electrician picking up the job on the road years later. A colour-coded loom isn't just professional — it's practical.

500 metres — the bulk roll that serious installers need. A single 500-metre roll gives you enough cable to wire multiple complete caravans or camper trailers from scratch, stock a workshop bench for months of builds and repairs, or keep a comprehensive supply on hand for ongoing maintenance and accessory installation work. Buying in bulk means you always have the right cable available without making repeated small purchases — and the per-metre cost makes it the most economical way to buy quality primary cable.

Quality construction for reliable long-term performance. Caravan and camper trailer wiring is subjected to conditions that would challenge most cables — constant vibration from unsealed roads, temperature extremes from outback summers to alpine winters, UV exposure, moisture, and the mechanical stress of installation in tight spaces and around sharp edges. Quality primary cable construction — with adequate strand count, appropriate insulation thickness, and consistent conductor sizing — is what delivers reliable, fault-free performance year after year.

Ideal for professional builders and serious DIY installers. Whether you're a professional caravan manufacturer, an auto electrician specialising in touring vehicle builds, or a passionate DIY installer who takes pride in a quality installation, the 500-metre roll gives you the supply you need to work efficiently and consistently. No running out mid-job, no mismatched cable from different batches, no compromises.

Suitable for a wide range of 12V applications. Beyond caravan and camper trailer builds, this cable is equally at home in boat wiring, horse float electrical systems, agricultural equipment, solar installations, off-grid power systems, and any other 12V application where quality primary wire is required.

✅ Key Features 

• 3mm gauge — Versatile sizing for a wide range of 12V caravan circuits
• Brown colour coded — Professional, identifiable wiring for clean installations
• 500 metre roll — Generous bulk supply for builders, workshops & serious DIY
• Primary wire construction — Built for reliable 12V automotive & caravan use
• Economical bulk pricing — Best value per metre for ongoing installation work
• Wide application range — Suits lighting, accessories, controls & secondary feeds
• Quality insulation — Handles heat, vibration & the demands of mobile living
• Australian touring ready — Built for caravans, campers, trailers & 4WDs

 Specifications