Cable

High-Quality 12V & 24V Automotive and Marine Cable.

Whether you are building a custom wiring harness for a professional rally car, rewiring a classic campervan, or outfitting a marine vessel, choosing the right cable is the foundation of any reliable electrical system. Polevolt stocks a comprehensive range of high-performance 12V and 24V cables designed to handle the demanding environments of automotive, motorsport, and marine applications.

We supply high-grade copper cable by the metre or on full reels to suit both trade professionals and home DIY users.

Explore Our Cable Range:

Thin Wall Auto Cable - The modern industry standard. Thin wall cable features high-performance PVC insulation that saves weight and space in wiring looms while offering higher current ratings than standard PVC cable. Ideal for motorsport and general automotive wiring.
Battery & Starter Cable - Heavy-duty, highly flexible copper cable designed to handle massive current draws. Perfect for starter motors, split charge systems, winches, and battery relocations.
Twin Core & Multicore Cable - Sheathed flat or round cables containing multiple separate cores. Highly recommended for trailer wiring, sensor wiring, and running power to auxiliary lighting in caravans and motorhomes.
Tinned Marine Cable - Specifically manufactured for harsh, corrosive environments. The copper strands are tin-plated to prevent oxidation, making it the only choice for marine and boat wiring.

How to Choose the Right Cable for Your Project.

When selecting cable for low-voltage (12V/24V) systems, the most critical factor is calculating your required amperage to prevent voltage drop and overheating. Always choose a wire with a continuous current rating that exceeds the maximum draw of your circuit. If you are wiring over a long distance—such as from a vehicle battery to a rear-mounted caravan accessory—you will need to step up your cable size (cross-sectional area in mm²) to ensure maximum power delivery.

If you are unsure which cable size or type you need for your specific application, please https://polevolt.co.uk/contact-us-2-w.asp or call our team at 01477 533 639 for expert advice.