A Journal of our Travels
A Journal of our Travels
Cables
Fuse Size
Fuses should be rated at about 1.5 time the maximum current flow.
Place fuses as close to the power source as possible.
Place fuses as close to the power source as possible.
Cable Sizes
Please note:
Current rating of cable refers to the maximum current the insulation can safely handle.
The cable should be rated for 2-3 times the expected current flow.
Auto wire conductor size will vary considerably depending on manufacturer. Only the outside diameter of the insulation is defined.
Current rating of cable refers to the maximum current the insulation can safely handle.
The cable should be rated for 2-3 times the expected current flow.
Auto wire conductor size will vary considerably depending on manufacturer. Only the outside diameter of the insulation is defined.
AWG/B&S Cable Sizes
AWG - American Wire Gauge
B&S - Brown & Sharpe
SWG - Imperial Standard Wire Gauge - (British Legal Standard)
American Wire Gauge (AWG), also known as the Brown & Sharpe wire gauge, is a logarithmic stepped standardised wire gauge system used since 1857, predominantly in North America, for the diameters of round, solid, nonferrous, electrically conducting wire. Dimensions of the wires are given in ASTM standard B 258.[1] The cross-sectional area of each gauge is an important factor for determining its current-carrying ampacity.
| Cross Section mm | Cable Diam mm | Size |
|---|---|---|
| 67.4 mm2 | 11.1 mm | 2/0 |
| 53.5 mm2 | 8.26 mm | 0 AWG |
| 35.0 mm2 | 7.75 mm | Metric 35 mm2 |
| 33.6308 mm2 | 6.5437 mm | 2 AWG/ 2B&S |
| 26.66 mm2 | 6.401 mm | 3 AWG/B&S |
| 25.0 mm2 | 5.18 mm | Metric 25 mm2 |
| 21.15 mm2 | 5.189 mm | 4 AWG/B&S |
| 16.8 mm2 | 4.621 mm | 5 AWG/B&S |
| 16.0 mm2 | 4.12 mm | Metric 16mm2 |
| 13.3018 mm2 | 4.1154 mm | 6 AWG/B&S |
| 8.3656 mm2 | 3.2636 mm | 8 AWG/B&S |
| 6.0 mm2 | 3.21 mm | Metric 6mm2 |
| 5.26 mm2 | 2.59 mm | 10 AWG/B&S |
| 4.0 mm2 | 2.59 mm | Metric 4mm2 |
| 3.31 mm2 | 2.053mm | 12 AWG/B&S |
| 2.08mm2 | 1.63mm | 14 AWG/B&S |
| 1.31mm2 | 1.29mm | 16 AWG/B&S |
Auto Cable Sizes
| Auto Cable Size | Cross Section | Strands/Diameter mm | Auto Crimp Terminal Colour | Typical Current Rating |
|---|---|---|---|---|
| 6mm | 4.60 mm2 | 57/.32 or 65/.30 | Yellow | 50A |
| 5mm | 2.90 mm2 | 36/.32 or 41/.30 | Yellow/Blue | 25A |
| 4mm | 1.85 mm2 | 23/.32 or 26/.30 | Blue | 15A |
| 3mm | 0.85 mm2 | 14/.32 or 16/.30 | Red/Blue | 10A |
| 2.5mm | 0.64 mm2 | 8/.32 | Red | 5A |
| 2mm | .56 mm2 | 7/.32 | Red | 5A |
