This Narva 5A 2.5mm 5 Core Trailer Cable in a 10 m roll gives you enough reach to wire a typical box or boat trailer without joins under the chassis. The five cores handle lighting loads up to 5 Amp per circuit, so indicators, tail lights and brakes stay powered across the full 10 metre run. The coloured sheath on each core in red, green, yellow, white and brown keeps fault finding simple on the roadside.

The cable uses oxygen free copper with each core sized at 0.64mm² and built from 8 x 0.32mm strands for solid current flow and flex in trailer drawbars. The outer PVC is RoHS compliant polyvinyl-chloride and lines up with typical 2.5mm auto cable supports and glands. The Narva pack turns up pre-cut at 10 m, which is a smart buy if you want tidy wiring runs that match AS/NZS 3808 trailer standards.

• Narva 5 core trailer cable in 10 metre pre-cut roll
• Rated at 5 Amp for trailer lighting circuits
• Approximate overall automotive size of 2.5mm cable
• Each conductor cross section is 0.64mm²
• Conductors made from oxygen free copper
• Stranding configuration is 8 strands of 0.32mm diameter
• Five colour coded cores in red, green, yellow, white and brown
• Outer insulation uses RoHS compliant polyvinyl-chloride (PVC)
• Suitable for standard box and boat trailers following AS/NZS 3808
• Packaged length helps reduce waste compared with bulk cable drums

Q: Can this Narva 5 core cable be used for electric brakes?

No, this cable is rated at 5 Amp per core, which is suited to lighting circuits rather than electric brake feed lines. Brake controllers usually need heavier cable with higher current capacity over the trailer length. For braking circuits, step up to a larger cross-sectional area cable. That keeps voltage drop under control and supports higher loads when braking.

Q: Is the 10 metre length usually enough for a single axle trailer?

For most small box and boat trailers, 10 metres will cover from plug to rear lamps. Measure your drawbar and chassis length to confirm before you start. Extra length may be needed on longer tandem trailers or if you plan complex routing. Avoid stretching the cable tight, and leave a little slack at connection points.

Q: Are the core colours on this cable standard for trailer wiring?

The cores are coloured red, green, yellow, white and brown, which lines up with common trailer wiring diagrams. Always check your plug wiring chart or existing setup before connecting. Matching colours at both ends helps with future fault finding. If you are rewiring an older trailer, note any previous non-standard colour usage.

Q: Is this cable suitable for outdoor exposure under a trailer?

The PVC sheath is intended for typical trailer underbody environments when routed and clipped correctly. Keep the cable away from exhaust heat, sharp edges and moving suspension parts. Use grommets and conduit where the cable passes through metal. Regular inspections will help catch abrasion or damage before it becomes an issue.

• Suitable for standard box trailers and boat trailers requiring 5 core wiring
• Intended for trailer lighting circuits up to 5 Amp per core
• Supplied in a 10 metre pre-cut length for straightforward routing from trailer plug to tail lights
• Compatible with 5 pin and 7 pin trailer plugs when wired to matching colour codes
• Installation should follow Australian road trailer wiring standards and relevant auto-electrical practices