OEX ACX0808L 4mm Twin Core Automotive Cable, Red/Black, Black Sheath 100m Roll

4mm Twin Core. 15A Rated. 100 Metres. OFHC Copper. AU/NZ Compliant.

Product Overview

The OEX ACX0808L is a 100 metre roll of 4mm twin core sheathed automotive cable red and black conductors within a black PVC outer sheath rated at 15A continuous at 30°C and built to AS/NZS 3808:2000. Constructed with oxygen-free high conductivity (OFHC) copper across 26 strands of 0.3mm conductor wire per core, it is designed for professional and DIY automotive, caravan, and marine wiring applications where a pre-paired, sheathed twin cable simplifies installation and keeps positive and negative conductors routed together in a single run.

The V90 temperature rating (90°C) and UV-stabilised, RoHS-approved construction make the ACX0808L suitable for under-bonnet environments, external routing, and harsh Australian conditions coastal salt air, outback UV, high ambient temperatures, and vibration-intensive vehicle applications. The 100 metre roll provides ample cable for a full vehicle wiring project, caravan fit-out, or bulk stock for workshop use.

Key Specifications

• Part Number: ACX0808L
• Brand: OEX
• Cable Type: Twin core sheathed automotive cable
• Cable Size: 4mm
• Conductor Cross Section: 1.84mm²
• Conductor Material: Oxygen-free high conductivity (OFHC) copper
• Number of Strands per Conductor: 26
• Strand Diameter: 0.3mm
• Amp Rating: 15A at 30°C
• Voltage Rating: Up to 110V
• Temperature Rating: V90 (90°C)
• Insulation Type: PVC
• Cable Colour: Red / Black
• Sheath Colour: Black
• Trace Colour: Black
• Cable Length: 100 metres
• Weight: 5.7kg
• Gauge: 15 (AWG equivalent)
• Compliance: AS/NZS 3808:2000 and RoHS
• UV Stabilised: Yes
• NZ Code: 153

Features & Benefits

• OFHC copper — maximum conductivity, minimum resistance — Oxygen-free high conductivity copper eliminates the oxygen inclusions that reduce conductivity and increase resistance in standard copper cable. Lower resistance means less voltage drop over length and less heat generation at rated current — both critical in automotive circuits where cable runs can be long and operating conditions are demanding.
• 15A at 30°C — appropriately rated for 4mm applications — The 15A continuous rating at 30°C matches the real-world load requirements of 4mm twin core applications — auxiliary lighting circuits, accessory wiring, caravan charging feeds, and similar loads where 4mm is the specified or appropriate cable size. Always derate for elevated ambient temperatures above 30°C.
• Twin core sheathed — one run, both conductors — Red and black conductors wrapped in a black PVC outer sheath mean the positive and negative are routed and protected together in a single cable run. Simplifies installation, reduces cable management complexity, and protects both conductors from abrasion, UV, and moisture in a single sheath.
• V90 temperature rating — under-bonnet and harsh environment capable — The V90 rating confirms the cable insulation maintains performance up to 90°C continuous operating temperature — within the thermal range of engine bay environments, roof-mounted solar cable runs in summer, and other high-temperature automotive applications.
• UV-stabilised — for external and exposed routing — UV stabilisation in both the sheath and insulation prevents degradation from prolonged sun exposure — important for cable routed externally on roof racks, along the chassis, or through caravan and motorhome builds where UV exposure is ongoing.
• AS/NZS 3808:2000 compliant — Australian standard — Compliance with AS/NZS 3808:2000 confirms the cable meets Australian and New Zealand automotive cable standards for construction, insulation, and performance — providing assurance for trade installations, compliance-sensitive builds, and inspectable wiring work.
• RoHS approved — environmentally compliant — RoHS compliance confirms the cable is free from restricted hazardous substances, meeting European and broadly adopted environmental materials standards.
• 26-strand construction per conductor — 26 strands of 0.3mm wire per conductor provide the flexibility and vibration resistance needed for automotive use — less prone to work-hardening and fracture under the constant movement and vibration experienced by wiring in a vehicle compared to solid or lower-strand-count conductors.
• 100 metre roll — full project and bulk supply — A 100 metre roll covers full vehicle wiring harnesses, complete caravan fit-outs, workshop bulk stock, and trade supply without needing to join rolls or run short mid-project. At 5.7kg, the roll is practical to handle and store.

Technical Specs

Compatible With / Goes Well With

Typical Applications:

• Automotive auxiliary lighting circuits (spotlights, LED light bars)
• Caravan and motorhome 12V wiring — accessories, lighting, charging feeds
• Marine 12V wiring and accessory circuits
• Dual battery system wiring (confirm amperage requirements against cable rating)
• General 12V/24V vehicle accessory installation
• Workshop and trade bulk cable stock

Goes Well With:

• Automotive cable terminals, lugs, and connectors
• Automotive fuse holders and inline fuses (15A rated for this cable)
• Cable management — split tubing, conduit, cable ties
• Anderson plugs and automotive connectors

Weight

5.7kg (confirmed — full 100m roll).

Frequently Asked Questions

What is the current rating of this cable and does it change with temperature?

The ACX0808L is rated at 15A continuous at 30°C ambient. In higher ambient temperatures — such as under the bonnet or in enclosed spaces in Australian summer — the current-carrying capacity reduces. Derate to a lower current limit for elevated-temperature applications or consult a licensed auto electrician.

What does OFHC copper mean and why does it matter?

OFHC stands for oxygen-free high conductivity copper. Removing oxygen from the copper during manufacturing increases conductivity and reduces resistance compared to standard copper cable. For automotive wiring, this means lower voltage drop over long cable runs and reduced heat generation at rated current.

Is this cable suitable for external routing on a roof rack or caravan chassis?

Yes — the UV-stabilised sheath and V90 temperature rating make the ACX0808L suitable for external routing on roof racks, chassis rails, and other exposed locations. Use appropriate cable management (conduit, clips, or split tubing) to protect against abrasion and mechanical damage in exposed runs.

What fuse size should I use with this cable?

This cable is rated at 15A at 30°C — protect it with a maximum 15A inline fuse at the power source end of the circuit. Using a larger fuse defeats the protection the fuse provides for the cable.

Is this cable compliant for use in professional auto electrical installations in Australia?

Yes — the ACX0808L complies with AS/NZS 3808:2000, the Australian and New Zealand standard for automotive cable. This makes it appropriate for use in professional auto electrical installations, trade workshops, and compliance-sensitive builds including registered vehicles and caravans.