KEY - 8B&S (7.7mm²) Red Single Core Automotive Cable - Australian Made - 100m Roll

8B&S (7.7mm²) Red Single Core Automotive Cable — 100m Roll for Reliable 12V, 24V, and 48V DC Power Distribution

High-Performance Single Core Cable for Automotive, Marine, and Off-Grid Applications

This 100-metre roll of 8B&S (7.7mm²) red single core automotive cable is engineered for demanding low-voltage DC installations where consistent current delivery and long-term durability are critical. With a 74A current rating at 30°C (per JASO D609), it is an excellent choice for auxiliary battery charging, solar panel connections, and high-current accessory wiring in vehicles, caravans, boats, and fixed off-grid systems.

Unlike generic automotive cable that may use lower-grade copper or thinner insulation, this cable features plain annealed copper conductors for superior conductivity and V90 PVC insulation rated to 90°C. This combination reduces voltage drop, resists heat build-up, and maintains flexibility even in harsh engine bay or outdoor environments. The cable is suitable for 12V, 24V, and 48V systems with a maximum DC voltage rating of 120V, making it versatile across a wide range of mobile and stationary applications.

*Note typical de-rating factors apply for ambient temperature and bundling; refer to the specification table for guidance.

Key Features

• 74A current rating at 30°C — supports high-demand circuits such as inverters, DC-DC chargers, and auxiliary battery banks
• Plain annealed copper conductors — 96 strands of 0.32mm for excellent flexibility and low electrical resistance (2.4 Ω/km at 20°C)
• V90 insulation — withstands up to 90°C, reducing risk of melting or degradation in hot engine compartments
• 100-metre bulk roll — ideal for large installations, workshops, or multiple projects, minimising waste and cost per metre
• Red colour coding — simplifies polarity identification and complies with common wiring standards for positive DC circuits
• RoHS compliant

Engineered for Australian Conditions

This cable is manufactured to handle the rigours of Australian environments, from corrugated outback tracks to salt-laden coastal air. The oxygen-free copper stranding resists corrosion and maintains low resistance over time, while the robust PVC jacket protects against abrasion, moisture, and common automotive fluids. Whether you're wiring a dual-battery system in a 4WD, running power to a caravan fridge, or connecting solar panels on a remote shed, this cable delivers dependable performance.

Applications

• Auxiliary battery and dual-battery systems in 4WDs, trucks, and SUVs
• Solar panel to charge controller wiring for caravans, motorhomes, and off-grid cabins
• High-current accessory circuits: winches, air compressors, inverters, and lighting
• Marine DC wiring for boats and yachts (when installed in protected conduit)
• General low-voltage power distribution in trailers, camper trailers, and workshops

Why This Cable Outperforms Generic Alternatives

Many budget cables use copper-clad aluminium (CCA) or lower strand counts, leading to higher resistance, greater voltage drop, and potential hot spots under load. This 8B&S cable uses 96 strands of 0.32mm plain copper, providing a true 7.7mm² cross-sectional area and a resistance of just 2.4 Ω/km. The result is cooler operation, less energy wasted as heat, and longer service life for connected equipment. The V90 insulation further reduces fire risk in high-temperature areas, a critical consideration for under-bonnet wiring.

Installation Notes

For optimal performance, select the appropriate cable gauge based on your total circuit length and expected current draw. Always consult a qualified auto electrician for complex installations, and use appropriate fusing or circuit protection. When bundling multiple single core cables, apply the de-rating factors provided in the specifications to ensure safe operating temperatures.

Power Your Project with Confidence

Equip your vehicle, vessel, or off-grid system with a cable that prioritises safety, efficiency, and longevity. Add the 100m roll of 8B&S red single core automotive cable to your order today and build a wiring harness you can rely on for years to come.

Specifications