3.0mm Purple Automotive Cable – 500 Metre Roll

500 Metres of Professional-Grade Cable. Ready for Any Job.

When you're building, rewiring, or upgrading the electrical system on a caravan, camper trailer, boat trailer, or 4WD, the quality and quantity of your cable matters. Running short mid-job or compromising on cable quality are problems that professional installers and experienced DIYers simply don't tolerate. The 3.0mm Purple Automotive Cable — 500 Metre Roll is the solution that keeps the job moving from start to finish without interruption, compromise, or repeated trips to the supplier.

3.0mm — the right size for mid-range current circuits. At 3.0mm cross-sectional area, this cable is rated for the mid-range current loads common across caravan and trailer wiring applications. Lighting circuits, accessory feeds, trailer wiring looms, reverse circuits, and secondary power runs all fall squarely within the capability of 3.0mm automotive cable. It's heavy enough to carry real current without voltage drop or heat buildup, yet flexible enough to route through tight spaces and around corners with ease.

Purple — the correct colour for reverse circuits. In Australian automotive and trailer wiring, purple cable is the recognised standard for reverse/backup circuits — the wire that triggers your reverse lights, reverse camera, or reverse alarm when you engage reverse gear. Using the correct colour coding isn't just professional practice — it's what makes an electrical installation safe to maintain, easy to fault-find, and simple for any auto electrician to work on in the future. Whether you're wiring a reverse camera system across a fleet of caravans or completing a single trailer build, using purple for your reverse circuit is the right way to do the job.

500 metres — built for trade, workshops & serious builders. A 500-metre roll isn't just for one job — it's the smart stock purchase for auto electricians, caravan manufacturers, trailer builders, and serious DIY enthusiasts who want to buy once and have cable on hand for every job that follows. At this quantity, the cost per metre drops significantly compared to buying smaller rolls, making it the most economical way to keep your workshop or build stocked with quality cable. One roll covers an entire caravan build, a fleet of trailer rewires, or a full season of electrical fitouts without running dry.

Automotive grade — built for the demands of mobile installations. Unlike general-purpose electrical cable, automotive-grade cable is specifically engineered for the unique demands of vehicle and trailer installations. It's built to handle the constant vibration of road travel, the wide temperature swings of Australian conditions from outback summer heat to alpine winter cold, exposure to oils, fuels, and chemicals in engine bays, and the tight bending radiuses required when routing through body cavities and chassis rails. This is cable that performs reliably across thousands of kilometres and years of service.

Flexible and easy to work with. The fine-strand copper conductor inside this cable makes it highly flexible and easy to route through conduit, grommets, cable clips, and tight spaces — essential for the kind of neat, professional installations that experienced caravan and trailer builders take pride in. It strips cleanly, crimps reliably, and accepts terminals consistently for fast, professional workmanship.

Colour coded for clean, safe installations. Using colour-coded cable throughout an electrical installation is one of the most important habits of a professional auto electrician. It makes fault-finding fast, future modifications simple, and the installation safe for anyone who works on it down the track. A 500-metre roll of dedicated purple cable means your reverse circuits are always correctly identified from one end to the other — no guessing, no re-tracing, no confusion.

Key Features

• 3.0mm cross-section — Ideal for mid-range current loads & lighting circuits
• Purple colour coded — Australian standard for reverse/backup circuits
• 500 metre roll — Trade quantity for workshops, builders & serious installers
• Automotive grade — Built for vibration, heat & harsh Australian conditions
• Fine-strand copper — Flexible, easy to route & work with
• Strips & crimps cleanly — Fast, professional workmanship every time
• Cost-effective bulk buy — Best value per metre for high-volume use
• Versatile application — Suits caravans, trailers, 4WDs & marine installs
• Keeps installations tidy — Correct colour coding for safe, traceable wiring

 Specifications