The NEC, THHN, & AWG wire gauge amp chart is the easiest way to see the amp rating for different wire thicknesses. From it, you can see a list of things, including: The 6 gauge wire amp rating is 65 amps for copper, with 167°F ambient temperature. ...
and ampacity – ie. the number of amps such a wire can handle (wire gauge to amps) – for every wire. In the subchapters below, we cover each AWG gauge wire, in turn, to give you a crystal clear idea of what all these wire specifications truly mean, and their implications. ...
Wire Ampacity Chart Chart showing the allowable wire ampacities of insulated conductors per NEC Table 310.16. Wire GaugeCopperAluminum 60 °C75 °C90 °C60 °C75 °C90 °C 18 AWG——14——— 16 AWG——18——— 14 AWG152025———