Description
Automotive Thin Wall Cable – Flexible Vehicle Wiring
Our automotive thin wall cable is designed for modern vehicle electrics where reliability, flexibility, and space-saving are important. Suitable for cars, vans, campervans, caravans, motorhomes, and 12–24V systems.
What does mm² mean? (Simple explanation)
The mm² size tells you how much copper is inside the cable.
If you cut the cable and looked at the end:
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The copper area is measured in square millimetres (mm²)
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Bigger mm² = more copper
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More copper = the cable can carry more current (amps)
⚠️ Please note:
mm² is NOT the same as diameter.
The outside diameter of the cable is always larger because of the insulation.
All our cables are specified by mm² (copper size).
Simple comparison:
Think of electricity like water in a pipe:
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Small mm² = narrow pipe (less power)
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Large mm² = wide pipe (more power)
Overall Cable Diameter Guide (Thin Wall)
Use this table if you are measuring an existing cable with a ruler or verniers.
| Cable size (mm²) | Typical outside diameter |
|---|---|
| 1.0 mm² | ~ 2.0 mm |
| 2.0 mm² | ~ 2.6 mm |
| 4.0 mm² | ~ 3.3 mm |
| 6.0 mm² | ~ 3.8 mm |
| 10 mm² | ~ 4.8 mm |
| 16 mm² | ~ 6.0 mm |
| 35 mm² | ~ 9.5–10.0 mm |
Sizes are typical for automotive thin wall cable and may vary slightly by manufacturer.
How to measure your existing cable
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Measure across the outside of the insulation
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Do not squash the cable
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Compare your measurement to the table above
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Choose the closest match
👉 The mm² refers to the copper inside, but measuring the outside diameter is the easiest way to identify your cable size.
Why choose thin wall cable?
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Thinner insulation than standard automotive cable
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Same copper size, smaller overall diameter
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Saves space in looms and conduits
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Lightweight and easy to route
Key features
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High-quality multi-strand copper for flexibility
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Heat-resistant automotive insulation
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Resistant to oil, fuel, and vibration
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Suitable for 12V and 24V systems
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Easy to strip and terminate
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Professional OEM-style cable
Typical uses
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Lighting circuits
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Switches and relays
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Fans, pumps, and accessories
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Sensors and control wiring
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Campervan and caravan installations
Choosing the right size
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Smaller mm² → lights, signals, low-power circuits
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Larger mm² → motors, accessories, battery feeds
If in doubt, choose the next size up — especially for long cable runs.
Flexible and durable. Sold by the meter in one continuous length.











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