This is a general cable wire size guide to help you choose the correct wire size for your electrical project.
Choosing a thicker wire provides higher current carrying capacity. It is safer to use thicker wire to conduct the current, but thicker wire is going to cost more. This guides provides you a gauge to select the most appropriate cable size.
*** Important Notes: The variety of cable brands varies in quality. The cable conducting and insulation jacket material do have an impact of the amount of ampere current that a wire can conduct. The cable length and temperature of the conducting environment also plays a part. The following wire size and current is only an estimate for a quick reference guide when selecting your cable size. It is important to check on the datasheet of the cable directly from the manufacturer.
Wire Size and Current Rating Table Guide
|Projected Maximum |
|Wire Size |
|Copper Wire |
Wire Wrapping wire
CAT5e Network Cable
|16AWG||1.31mm2 (closest 1.5mm2)|
|1.78mm||2.07mm2 (closest 2.5mm2)||55.6A|