4 Gauge 4 AWG 25 Feet Red + 25 Feet Black ( 50 Feet Total ) Welding Battery Pure Copper Flexible Cable Wire -- Car, Inverter, RV, Solar by WindyNation

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You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 30 amps is 10 AWG wire. If you need a wire to handle a certain amount of amps you can just scroll down to the appropriate subchapter that covers the amperage you’re interested in.

You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 10 amps is 20 AWG wire. For audio, video, telephone, security cabling you may want to use smaller cables sizes where the voltage and current are smaller. Ampacity-wise, the 4/0 AWG gauge wire can handle the largest amount of current of any AWG gauge wire.You also need to pay attention to what type of wire you are using, NM-B, TW, THHN, SOOW just to name a few. But, in general, people use ‘wattage’ and ‘amperage’ and we try to explain this to people who don’t have university degrees in physics, engineering, and so on. You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 80 amps is 4 AWG wire. AWG general rules of thumb – for every 6 gauge decrease, the wire diameter doubles and for every 3 gauge decrease, the cross sectional area doubles.

The general rule of thumb is for every 6 gauge decrease the wire diameter doubles and every 3 gauge decrease doubles the cross sectional area.Here is a range of applications such a wire can be used for (Fermerry 28 AWG wire): Applications of a 28 gauge copper wire. Applications requiring Type THHN or THWN-2, the conductor is appropriate for use in wet or dry locations at temperatures not to exceed 90°C or not to exceed 75°C in oil or coolants. If a load is expected to ever remain on for longer than 3 hours, the conductor needs to be rated for 1. Despite being able to handle 100 amps (with 100 amp ampacity), the 3 AWG wire is more commonly used as a 100 amp wire size.