3mm (1.13mm²) Twin Core Automotive Cable per Metre

3mm (1.13mm²) Twin Core Automotive Cable for Reliable Low-Voltage Power

When you’re wiring a vehicle, trailer, caravan or 4WD accessory, cable quality directly affects performance, safety and long-term reliability. This Austech 3mm (1.13mm²) twin core automotive cable is built for demanding Australian conditions, combining high-conductivity copper with a tough, UV-stabilised PVC sheath to help protect against abrasion, heat and day-to-day vibration.

Because it’s twin core, you can run positive and negative together in a neat, protected jacket—ideal for cleaner installs and easier fault-finding. Colour-coded inner cores (red & black) also help reduce wiring errors, which can be especially valuable when you’re working on tight deadlines or troubleshooting under load.

Engineered to Reduce Voltage Drop and Heat Build-Up

In real-world automotive and recreational setups, voltage drop is a common cause of dim lights, slow charging, nuisance low-voltage cut-outs and underperforming accessories. Using a quality copper conductor helps support efficient current flow so your 12V wiring and accessory circuits operate as intended. This 3mm (1.13mm²) cable is rated at 16A (JASO test method) — match the cable to your run length and current draw, and follow accepted installation practices for routing and protection.

Built Tough for Outdoor and Under-Bonnet Environments

The UV-stabilised V90HT PVC insulation and sheath are designed to handle harsh sun exposure and elevated temperatures encountered in automotive and outdoor installations. The multi-strand copper construction also improves flexibility, making it easier to route through conduits, behind panels and around tight bends without fighting the cable.

Ideal for Automotive, Marine-Adjacent and Recreational Applications

This cable is well suited to a wide variety of automotive wiring and low-voltage power tasks, including dual battery systems, caravan accessories, trailer wiring, 4WD lighting and small accessory feeds such as LED light bars, fridges and pumps where a robust twin core cable helps keep installations tidy and dependable. It’s also a practical choice when you want a consistent, easy-to-identify polarity layout throughout a build.

Standards-Aligned Materials for Added Confidence

Made with plain annealed copper conductors to AS/NZS1125 and PVC compounds to AS3808, this cable is designed with compliance and consistency in mind. It is also RoHS compliant. Amp ratings shown in the specifications are based on an established automotive test method (JASO) and should be considered alongside your installation environment, bundling, ventilation and duty cycle.

Please note: Not suitable for mains connection

Key features

• Twin core sheathed design for neat routing and added mechanical protection
• High-conductivity copper to support efficient low-voltage power delivery
• UV-stabilised, temperature-rated PVC for harsh Australian conditions
• Colour-coded inner cores (red & black) to help reduce polarity mistakes during installation
• Flexible multi-strand construction for easier pulling and tighter bends
• RoHS compliant materials for confidence in modern electrical builds

Common uses

• Accessory feeds for 4WD and touring setups (LED light bars, auxiliary pumps)
• Caravan and camper trailer circuits such as lighting, fridges and pumps
• Trailer wiring runs where durability and clear polarity matter
• Battery-to-load cabling in low-voltage systems where voltage drop control is important

Choose the Right Option for Your Install

Select the cable based on current draw, run length and allowable voltage drop for your circuit. If you’re unsure, consult an auto electrician to ensure safe protection, correct fusing and sound installation practices.