3.0mm Blue Electrical Cable – 500 Metre Roll

The Cable That Serious Builders Buy by the Roll

Every quality electrical installation starts with quality cable. Whether you're wiring a brand-new caravan from scratch, rewiring an older rig, fitting out a camper trailer build, or stocking a professional auto electrical workshop, having the right cable in the right quantity makes every job faster, cleaner, and more reliable. The 3.0mm Blue Electrical Cable on a 500 Metre Roll is the bulk wiring solution that professional builders and serious DIYers across Australia trust to get the job done properly.

3.0mm — the versatile mid-range size for 12V wiring. At 3.0mm, this cable sits in the highly practical mid-range of automotive and caravan wiring sizes — thick enough to handle moderate current loads reliably, and flexible enough to route through tight spaces, around corners, and along the chassis rails and wall cavities of caravans and camper trailers. It's one of the most commonly used cable sizes in 12V caravan and automotive electrical installations, covering a wide range of everyday circuit applications.

500 metres — the roll that never runs out. There's nothing more frustrating on a big wiring job than running short of cable. A 500 metre roll gives you the volume you need to complete large builds without interruption, stock a professional workshop with a reliable supply, cut custom lengths for multiple jobs, and always have cable on hand for repairs, modifications, and add-ons down the track. For trade professionals, 500 metres is the only quantity that makes sense. For serious DIY builders, it's the smartest buy you'll make.

Blue colour coding — wired to industry standards. The blue colour follows standard Australian automotive and caravan wiring colour conventions, making it easy to identify circuit runs during installation, fault-finding, and future modifications. Correct colour coding isn't just about neatness — it's about safety, compliance, and making sure that anyone who works on the electrical system after you can quickly and correctly identify every circuit in the loom.

Built for the demands of mobile Australian living. Caravan and camper trailer wiring faces challenges that fixed domestic wiring never encounters — constant vibration from thousands of kilometres of road travel, extreme temperature swings between outback days and alpine nights, the flex and movement of a vehicle in motion, and exposure to dust, moisture, and the elements. This cable is constructed with the conductor quality and insulation integrity needed to maintain reliable performance across all of these conditions, for the full working life of your rig.

Flexible and easy to work with. Good cable should be easy to handle — flexible enough to route through tight spaces and around bends without kinking, and consistent enough to strip, terminate, and connect cleanly every time. This 3.0mm cable delivers the workability that makes for a fast, professional installation whether you're pulling it through conduit, running it along a chassis rail, or routing it through a caravan wall cavity.

The right cable for a wide range of 12V applications. From lighting circuits and accessory feeds to water pump wiring, USB charge point runs, solar panel connections, and general purpose 12V circuit wiring — 3.0mm cable is the workhorse size that handles a broad range of everyday caravan and camper electrical applications reliably and efficiently.

Cost-effective bulk buying. Buying cable by the 500 metre roll is significantly more cost-effective than purchasing shorter lengths for each individual job. For trade professionals, the saving per metre is substantial across a full year of builds. For serious DIY builders, it means having quality cable on hand for every future project, modification, or repair without paying a premium for short lengths every time.

Key Features 

• 3.0mm conductor size — Versatile mid-range size for common 12V circuits
• 500 metre roll — Bulk supply for professional builds & workshop stock
• Blue colour coded — Meets Australian automotive wiring colour standards
• Flexible construction — Easy to route, strip & terminate
• Durable insulation — Built for vibration, temperature extremes & tough conditions
• Wide application range — Suits lighting, accessories, solar, pumps & more
• Cost-effective bulk roll — Best value per metre for trade & serious DIY
• Australian conditions ready — Built for caravans, campers & 4WD wiring

 Specifications