6B&S (13.5mm²) Black Single Core Automotive Cable: Engineered for High-Current 12V, 24V, and 48V DC Applications

Reliable Power Delivery for Caravans, 4WDs, Trailers, and Off-Grid Systems

When your electrical system demands consistent, low-resistance power transfer, this 6B&S (13.5mm²) black single core automotive cable delivers professional-grade performance. Manufactured in Australia using high-conductivity oxygen-free plain annealed copper, it is designed to handle the rigorous current loads typical of modern 12V, 24V, and 48V DC installations. With a maximum DC voltage rating of 120V, it provides ample headroom for a wide range of auxiliary and low-voltage power circuits beyond standard automotive use.

Rated at 103A at 30°C ambient under JASO D609 standards, this cable is an ideal choice for high-current automotive wiring, including dual battery systems, inverter connections, solar charge runs, and heavy-duty lighting. The robust black PVC insulation is rated for continuous operation up to 90°C, offering excellent resistance to abrasion, oils, and fuels commonly encountered in engine bays and under-vehicle routing.

*Note typical de-rating factors apply for elevated temperatures and bundled installations.

Key Features

• 103A current rating at 30°C (JASO D609) for demanding 12V, 24V, and 48V circuits
• 168 strands of 0.32mm plain annealed copper for superior flexibility and minimal voltage drop
• Durable black PVC insulation rated to 90°C, resistant to automotive fluids and UV exposure
• 13.5mm² nominal cross-section (6B&S) with low 1.4 Ω/km resistance at 20°C
• Sold per metre for precise project lengths, reducing waste and cost

Why Australian-Made Copper Quality Matters

Inferior cables often use copper-clad aluminium (CCA) or low-purity copper, leading to higher resistance, voltage drop, and potential overheating under load. This cable uses oxygen-free plain annealed copper, ensuring maximum conductivity and long-term reliability. The fine stranding (168/0.32mm) enhances flexibility, making it easier to route through tight conduits, chassis rails, and cable glands without compromising current-carrying capacity.

Designed for Australian Conditions

From corrugated outback tracks to coastal salt spray, this cable’s insulation is formulated to withstand harsh environments. The black PVC jacket provides a tough barrier against moisture, chemicals, and mechanical wear, while the tinned copper conductors (where applicable) offer additional corrosion resistance. It meets RoHS and Australian/New Zealand safety standards, giving you confidence in every installation.

Typical Applications

• Dual battery systems in 4WDs, caravans, and camper trailers
• Solar charge controllers to battery banks (up to 120V DC)
• Inverter cabling for mobile and off-grid power setups
• Heavy-duty lighting and accessory circuits
• Marine and boat wiring (when installed in protected conduits)

Simple Selection, Professional Results

Choosing the correct cable gauge is critical for safety and performance. This 6B&S (13.5mm²) single core is suited for runs where a dedicated negative return is used, or as part of a paired twin-core setup. For bundled installations, refer to the derating table: a group of three cables reduces the effective ampacity to 70% of the rated value. Always consult a qualified auto electrician for system design and installation.

Power Your Project with Confidence

Equip your vehicle or off-grid system with a cable that matches the demands of modern high-current DC applications. Order your 6B&S black single core automotive cable by the metre today and build a wiring harness that delivers reliable power for years to come.