Tefzel Wire Amperage Chart

One of the most commonly asked questions is how many amps Tezfel wire is rated for. That is a very tough question to answer without knowing many different variables. For just this reason, the following table is strictly intended to be used as a general guide. In addition, individual applications, whether communications, control, power, etc., need to be examined and all appropriate safety factors considered.

Keep in mind that when your Max Feet decrease your amperage rating increases.

The chart below will suffice for most motorsport, automotive and industrial applications, and this assumes your wire/s are bundled in heat-shrink and you are using 1 of the wire types below :

AMPACITY CHART
AWGMili-Ohms /FT35º C Rise10º C Rise
AmpsMax FeetAmpsMax Feet
20.0156100445483
40.24972394070
60.39554333059
80.62840282055
10130231547
121.59202212.535
142.5315181028
164.0112.514725
186.391011522
2010.2710417
2216.157315
Chart data is compliments of The best website for in-depth info on motorsport wiring RB Racing