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Automotive & Vehicle Cable

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Cable Auto Twin 3mm(1.13mm2) 16/0.30 Red/Black Black Sheath 100M
Automotive Cable Twin 3mm 20A Red Black 100m Electra Cables
ECA321-100
$176.50 $105.90
Rated 100V DC or 32V AC, this 3mm automotive cable is suited to automotive wiring and general purpose automotive cable applications. It uses plain annealed copper with 16/0.30 stranding, PVC V75 insulation and PVC 4V-75 sheath. The cable is not suitable for mains power connection and is listed to AS/NZS 1125 and AS/NZS 3808. Review the technical details below for specifications and installation requirements.
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Trade Discount 40%
Cable Auto Twin 4mm(1.85mm2) 26/0.30 Red/Black Black Sheath 100M
Automotive Cable Twin 4mm 28A Red Black 100m Electra Cables
ECA421-100
$297.90 $178.80
Rated 100V DC or 32V AC, this 4mm automotive twin cable is suited to automotive wiring and general purpose vehicle cable applications. It features plain annealed copper with 26/0.30 stranding, PVC V75 insulation and PVC 4V-75 sheath. The cable meets AS/NZS 1125 conductor standards and AS/NZS 3808 for PVC insulation and sheath standards. See the specifications below for cable construction, dimensions and application details.
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Trade Discount 40%
Cable Auto Twin 5mm(3.25mm2) 41/0.32 Red/Black Black Sheath 100M
Automotive Cable Twin 5mm 37A Red Black 100m Electra Cables
ECA521-100
$458.30 $275.00
This 5mm automotive twin cable has a 3.25mm2 conductor cross-section and is designed for automotive wiring and general purpose automotive cable applications. It features plain annealed copper, PVC V75 insulation and PVC 4V-75 sheath, with a 100V DC or 32V AC voltage rating. The 100-metre cable complies with AS/NZS 1125 and AS/NZS 3808 standards. Review the technical specifications below for cable construction, dimensions and application details.
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Trade Discount 40%
Cable Auto Twin 6mm(4.65mm2) 37/0.40 Red/Black Black Sheath 100M
Automotive Cable Twin 6mm 48A Red Black 100m Electra Cables
ECA621-100
$595.80 $357.50
This 6mm automotive twin cable features a 4.65mm2 conductor with 37/0.40 stranding and is suited to automotive wiring and general purpose automotive cable applications. It uses plain annealed copper with PVC V75 insulation and PVC 4V-75 sheath, rated at 100V DC or 32V AC. The cable has Red/Black conductors with a Black sheath and complies with AS/NZS 1125 and AS/NZS 3808. See the detailed specifications below for cable construction, dimensions and application requirements.
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Automotive & Vehicle Cable: Single and Multi-Core Wiring for Auto Electricians and Mobile Installers

Wiring a vehicle, trailer or mobile installation calls for cable that can handle constant vibration, engine heat and exposure to oil and fuel — standard building wire won't hold up long-term. This range runs from fine-gauge FLRY 0.75mm² single-core cable for accessory circuits through to heavy starter leads, so you can match cross-section to actual current draw instead of guessing. Not sure which size fits the job? Our automotive cable size guide breaks the ratings down by application.

What's in This Range

  • FLRY thin-wall single-core cable — lightweight PVC-insulated cable suited to indicator, accessory and low-current circuits: FLRY 0.5mm² vehicle cable.
  • FLY heavy-duty single-core cable — thicker conductor for higher current runs like driving lights or fridge circuits: FLY 3.5mm² vehicle cable.
  • FLRYY 2-core cable — twin-conductor cable for running power and earth, or two separate circuits, through one sheath: FLRYY 1.5mm² 2-core cable.
  • FLRYY 7-core oil-resistant cable — multi-circuit cable built for trailer wiring looms and control harnesses: FLRYY 1.5mm² 7-core cable.
  • Heavy-duty starter cable — high cross-section cable rated for cranking current between battery and starter motor: 35mm² starter cable.
  • Twin-core automotive cable — colour-coded red/black cable rated by amperage for straightforward power and return wiring: Electra Cables 5mm² twin-core cable.

Who Uses This

Mobile auto electricians reach for FLRY and FLY single-core cable when rewiring fleet vehicles or fitting out utes with driving lights and UHF radios. 4x4 and caravan installers rely on multi-core FLRYY cable for trailer plugs and brake controller looms, while marine and agricultural equipment technicians use starter cable and twin-core automotive cable for battery connections and high-draw accessories. In the workshop, engine bay rewires and dash loom repairs typically draw on several sizes from this range at once.

Automotive & Vehicle Cable — Common Questions

What size automotive cable do I need for a starter or high-current circuit?

Starter and battery cable runs need a larger cross-section than accessory wiring because of the sustained cranking current involved. For most passenger vehicle starter connections, 50mm² starter cable is a common choice, stepping down where run lengths are short or current draw is lower. If you're unsure of the correct size for your setup, check the vehicle's existing gauge or consult a wiring diagram before ordering.

When should I use multi-core cable instead of single-core?

Multi-core cable makes sense whenever you're running several circuits along the same path, such as trailer lighting, brake controllers or accessory looms, because it keeps wiring tidy inside a single sheath. A FLRYY 5-core cable covers most standard trailer functions in one run, while single-core FLRY or FLY cable suits individual high-current circuits like driving lights or fridges that are better run separately.

What's the difference between single-core FLRY cable and twin-core automotive cable?

Single-core FLRY cable carries one circuit per length and is typically colour-coded to help trace individual runs through a loom, while twin-core automotive cable bundles a power and return conductor together in one sheath, usually colour-coded red and black. Twin-core is convenient for straightforward point-to-point connections like accessory power feeds, whereas single-core gives more flexibility when building out a multi-circuit loom. Our guide to automotive twin-core cable covers when each type makes sense.

Why Choose SCHNAP

  • Wurth FLRY and FLRYY cable stocked from 0.5mm² single-core through to 7-core options, so you can match the exact circuit count and gauge to the job.
  • Electra Cables twin-core automotive cable rated by amperage, taking the guesswork out of matching cable size to load.
  • Trade discounts, a 30-day return policy and Australia-wide delivery, so restocking the van doesn't slow down the next job.

Running a 7-core trailer loom? Our 7-core trailer wire guide walks through wiring it correctly. Browse the full range above or get in touch for trade pricing on bulk orders.