<Tr> <Td> 9 </Td> <Td> 0.8 </Td> <Td> 2.5 </Td> <Td> 19 </Td> <Td> 8 </Td> <Td> 25 </Td> <Td> 29 </Td> <Td> 80 </Td> <Td> 250 </Td> <Td> 39 </Td> <Td> 800 </Td> <Td> 2500 </Td> </Tr> <P> The table below shows various data including both the resistance of the various wire gauges and the allowable current (ampacity) based on a copper conductor with plastic insulation . The diameter information in the table applies to solid wires . Stranded wires are calculated by calculating the equivalent cross sectional copper area . Fusing current (melting wire) is estimated based on 25 ° C ambient temperature . The table below assumes DC, or AC frequencies equal to or less than 60 Hz, and does not take skin effect into account . Turns of wire is an upper limit for wire with no insulation . </P> <Table> <Tr> <Th> AWG </Th> <Th_colspan="2"> Diameter </Th> <Th_colspan="2"> Turns of wire, without insulation </Th> <Th_colspan="2"> Area </Th> <Th_colspan="8"> Copper wire </Th> </Tr> <Tr> <Th_colspan="2"> Resistance / length </Th> <Th_colspan="3"> Ampacity, at 20 ° C insulation material temperature rating, or for single unbundled wires in equipment for 16 AWG and smaller </Th> <Th_colspan="3"> Fusing current </Th> </Tr> <Tr> <Th> 60 ° C </Th> <Th> 75 ° C </Th> <Th> 90 ° C </Th> <Th> Preece </Th> <Th_colspan="2"> Onderdonk </Th> </Tr> <Tr> <Th> (in) </Th> <Th> (mm) </Th> <Th> (per in) </Th> <Th> (per cm) </Th> <Th> (kcmil) </Th> <Th> (mm) </Th> <Th> (mΩ / m) </Th> <Th> (mΩ / ft) </Th> <Th_colspan="3"> (A) </Th> <Th> ~ 10 s </Th> <Th> 1 s </Th> <Th> 32 ms </Th> </Tr> <Tr> <Td> 0000 (4 / 0) </Td> <Td> 0.4600 </Td> <Td> 11.684 </Td> <Td> 2.17 </Td> <Td> 0.856 </Td> <Td> 212 </Td> <Td> 107 </Td> <Td> 0.1608 </Td> <Td> 0.04901 </Td> <Td> 195 </Td> <Td> 230 </Td> <Td> 260 </Td> <Td> 3.2 kA </Td> <Td> 33 kA </Td> <Td> 182 kA </Td> </Tr> <Tr> <Td> 000 (3 / 0) </Td> <Td> 0.4096 </Td> <Td> 10.405 </Td> <Td> 2.44 </Td> <Td> 0.961 </Td> <Td> 168 </Td> <Td> 85.0 </Td> <Td> 0.2028 </Td> <Td> 0.06180 </Td> <Td> 165 </Td> <Td> 200 </Td> <Td> 225 </Td> <Td> 2.7 kA </Td> <Td> 26 kA </Td> <Td> 144 kA </Td> </Tr> <Tr> <Td> 00 (2 / 0) </Td> <Td> 0.3648 </Td> <Td> 9.266 </Td> <Td> 2.74 </Td> <Td> 1.08 </Td> <Td> 133 </Td> <Td> 67.4 </Td> <Td> 0.2557 </Td> <Td> 0.07793 </Td> <Td> 145 </Td> <Td> 175 </Td> <Td> 195 </Td> <Td> 2.3 kA </Td> <Td> 21 kA </Td> <Td> 115 kA </Td> </Tr> <Tr> <Td> 0 (1 / 0) </Td> <Td> 0.3249 </Td> <Td> 8.251 </Td> <Td> 3.08 </Td> <Td> 1.21 </Td> <Td> 106 </Td> <Td> 53.5 </Td> <Td> 0.3224 </Td> <Td> 0.09827 </Td> <Td> 125 </Td> <Td> 150 </Td> <Td> 170 </Td> <Td> 1.9 kA </Td> <Td> 16 kA </Td> <Td> 91 kA </Td> </Tr> <Tr> <Td> </Td> <Td> 0.2893 </Td> <Td> 7.348 </Td> <Td> 3.46 </Td> <Td> 1.36 </Td> <Td> 83.7 </Td> <Td> 42.4 </Td> <Td> 0.4066 </Td> <Td> 0.1239 </Td> <Td> 110 </Td> <Td> 130 </Td> <Td> 145 </Td> <Td> 1.6 kA </Td> <Td> 13 kA </Td> <Td> 72 kA </Td> </Tr> <Tr> <Td> </Td> <Td> 0.2576 </Td> <Td> 6.544 </Td> <Td> 3.88 </Td> <Td> 1.53 </Td> <Td> 66.4 </Td> <Td> 33.6 </Td> <Td> 0.5127 </Td> <Td> 0.1563 </Td> <Td> 95 </Td> <Td> 115 </Td> <Td> 130 </Td> <Td> 1.3 kA </Td> <Td> 10.2 kA </Td> <Td> 57 kA </Td> </Tr> <Tr> <Td> </Td> <Td> 0.2294 </Td> <Td> 5.827 </Td> <Td> 4.36 </Td> <Td> 1.72 </Td> <Td> 52.6 </Td> <Td> 26.7 </Td> <Td> 0.6465 </Td> <Td> 0.1970 </Td> <Td> 85 </Td> <Td> 100 </Td> <Td> 115 </Td> <Td> 1.1 kA </Td> <Td> 8.1 kA </Td> <Td> 45 kA </Td> </Tr> <Tr> <Td> </Td> <Td> 0.2043 </Td> <Td> 5.189 </Td> <Td> 4.89 </Td> <Td> 1.93 </Td> <Td> 41.7 </Td> <Td> 21.2 </Td> <Td> 0.8152 </Td> <Td> 0.2485 </Td> <Td> 70 </Td> <Td> 85 </Td> <Td> 95 </Td> <Td> 946 A </Td> <Td> 6.4 kA </Td> <Td> 36 kA </Td> </Tr> <Tr> <Td> 5 </Td> <Td> 0.1819 </Td> <Td> 4.621 </Td> <Td> 5.50 </Td> <Td> 2.16 </Td> <Td> 33.1 </Td> <Td> 16.8 </Td> <Td> 1.028 </Td> <Td> 0.3133 </Td> <Td_colspan="3"> </Td> <Td> 795 A </Td> <Td> 5.1 kA </Td> <Td> 28 kA </Td> </Tr> <Tr> <Td> 6 </Td> <Td> 0.1620 </Td> <Td> 4.115 </Td> <Td> 6.17 </Td> <Td> 2.43 </Td> <Td> 26.3 </Td> <Td> 13.3 </Td> <Td> 1.296 </Td> <Td> 0.3951 </Td> <Td> 55 </Td> <Td> 65 </Td> <Td> 75 </Td> <Td> 668 A </Td> <Td> 4.0 kA </Td> <Td> 23 kA </Td> </Tr> <Tr> <Td> 7 </Td> <Td> 0.1443 </Td> <Td> 3.665 </Td> <Td> 6.93 </Td> <Td> 2.73 </Td> <Td> 20.8 </Td> <Td> 10.5 </Td> <Td> 1.634 </Td> <Td> 0.4982 </Td> <Td_colspan="3"> </Td> <Td> 561 A </Td> <Td> 3.2 kA </Td> <Td> 18 kA </Td> </Tr> <Tr> <Td> 8 </Td> <Td> 0.1285 </Td> <Td> 3.264 </Td> <Td> 7.78 </Td> <Td> 3.06 </Td> <Td> 16.5 </Td> <Td> 8.37 </Td> <Td> 2.061 </Td> <Td> 0.6282 </Td> <Td> 40 </Td> <Td> 50 </Td> <Td> 55 </Td> <Td> 472 A </Td> <Td> 2.5 kA </Td> <Td> 14 kA </Td> </Tr> <Tr> <Td> 9 </Td> <Td> 0.1144 </Td> <Td> 2.906 </Td> <Td> 8.74 </Td> <Td> 3.44 </Td> <Td> 13.1 </Td> <Td> 6.63 </Td> <Td> 2.599 </Td> <Td> 0.7921 </Td> <Td_colspan="3"> </Td> <Td> 396 A </Td> <Td> 2.0 kA </Td> <Td> 11 kA </Td> </Tr> <Tr> <Td> 10 </Td> <Td> 0.1019 </Td> <Td> 2.588 </Td> <Td> 9.81 </Td> <Td> 3.86 </Td> <Td> 10.4 </Td> <Td> 5.26 </Td> <Td> 3.277 </Td> <Td> 0.9989 </Td> <Td> 30 </Td> <Td> 35 </Td> <Td> 40 </Td> <Td> 333 A </Td> <Td> 1.6 kA </Td> <Td> 8.9 kA </Td> </Tr> <Tr> <Td> 11 </Td> <Td> 0.0907 </Td> <Td> 2.305 </Td> <Td> 11.0 </Td> <Td> 4.34 </Td> <Td> 8.23 </Td> <Td> 4.17 </Td> <Td> 4.132 </Td> <Td> 1.260 </Td> <Td_colspan="3"> </Td> <Td> 280 A </Td> <Td> 1.3 kA </Td> <Td> 7.1 kA </Td> </Tr> <Tr> <Td> 12 </Td> <Td> 0.0808 </Td> <Td> 2.053 </Td> <Td> 12.4 </Td> <Td> 4.87 </Td> <Td> 6.53 </Td> <Td> 3.31 </Td> <Td> 5.211 </Td> <Td> 1.588 </Td> <Td> 20 </Td> <Td> 25 </Td> <Td> 30 </Td> <Td> 235 A </Td> <Td> 1.0 kA </Td> <Td> 5.6 kA </Td> </Tr> <Tr> <Td> 13 </Td> <Td> 0.0720 </Td> <Td> 1.828 </Td> <Td> 13.9 </Td> <Td> 5.47 </Td> <Td> 5.18 </Td> <Td> 2.62 </Td> <Td> 6.571 </Td> <Td> 2.003 </Td> <Td_colspan="3"> </Td> <Td> 198 A </Td> <Td> 798 A </Td> <Td> 4.5 kA </Td> </Tr> <Tr> <Td> 14 </Td> <Td> 0.0641 </Td> <Td> 1.628 </Td> <Td> 15.6 </Td> <Td> 6.14 </Td> <Td> 4.11 </Td> <Td> 2.08 </Td> <Td> 8.286 </Td> <Td> 2.525 </Td> <Td> 15 </Td> <Td> 20 </Td> <Td> 25 </Td> <Td> 166 A </Td> <Td> 633 A </Td> <Td> 3.5 kA </Td> </Tr> <Tr> <Td> 15 </Td> <Td> 0.0571 </Td> <Td> 1.450 </Td> <Td> 17.5 </Td> <Td> 6.90 </Td> <Td> 3.26 </Td> <Td> 1.65 </Td> <Td> 10.45 </Td> <Td> 3.184 </Td> <Td_colspan="3"> </Td> <Td> 140 A </Td> <Td> 502 A </Td> <Td> 2.8 kA </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 0.0508 </Td> <Td> 1.291 </Td> <Td> 19.7 </Td> <Td> 7.75 </Td> <Td> 2.58 </Td> <Td> 1.31 </Td> <Td> 13.17 </Td> <Td> 4.016 </Td> <Td> </Td> <Td> </Td> <Td> 18 </Td> <Td> 117 A </Td> <Td> 398 A </Td> <Td> 2.2 kA </Td> </Tr> <Tr> <Td> 17 </Td> <Td> 0.0453 </Td> <Td> 1.150 </Td> <Td> 22.1 </Td> <Td> 8.70 </Td> <Td> 2.05 </Td> <Td> 1.04 </Td> <Td> 16.61 </Td> <Td> 5.064 </Td> <Td_colspan="3"> </Td> <Td> 99 A </Td> <Td> 316 A </Td> <Td> 1.8 kA </Td> </Tr> <Tr> <Td> 18 </Td> <Td> 0.0403 </Td> <Td> 1.024 </Td> <Td> 24.8 </Td> <Td> 9.77 </Td> <Td> 1.62 </Td> <Td> 0.823 </Td> <Td> 20.95 </Td> <Td> 6.385 </Td> <Td> 10 </Td> <Td> 14 </Td> <Td> 16 </Td> <Td> 83 A </Td> <Td> 250 A </Td> <Td> 1.4 kA </Td> </Tr> <Tr> <Td> 19 </Td> <Td> 0.0359 </Td> <Td> 0.912 </Td> <Td> 27.9 </Td> <Td> 11.0 </Td> <Td> 1.29 </Td> <Td> 0.653 </Td> <Td> 26.42 </Td> <Td> 8.051 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 70 A </Td> <Td> 198 A </Td> <Td> 1.1 kA </Td> </Tr> <Tr> <Td> 20 </Td> <Td> 0.0320 </Td> <Td> 0.812 </Td> <Td> 31.3 </Td> <Td> 12.3 </Td> <Td> 1.02 </Td> <Td> 0.518 </Td> <Td> 33.31 </Td> <Td> 10.15 </Td> <Td> 5 </Td> <Td> 11 </Td> <Td>--</Td> <Td> 58.5 A </Td> <Td> 158 A </Td> <Td> 882 A </Td> </Tr> <Tr> <Td> 21 </Td> <Td> 0.0285 </Td> <Td> 0.723 </Td> <Td> 35.1 </Td> <Td> 13.8 </Td> <Td> 0.810 </Td> <Td> 0.410 </Td> <Td> 42.00 </Td> <Td> 12.80 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 49 A </Td> <Td> 125 A </Td> <Td> 700 A </Td> </Tr> <Tr> <Td> 22 </Td> <Td> 0.0253 </Td> <Td> 0.644 </Td> <Td> 39.5 </Td> <Td> 15.5 </Td> <Td> 0.642 </Td> <Td> 0.326 </Td> <Td> 52.96 </Td> <Td> 16.14 </Td> <Td> 5 </Td> <Td> 7 </Td> <Td>--</Td> <Td> 41 A </Td> <Td> 99 A </Td> <Td> 551 A </Td> </Tr> <Tr> <Td> 23 </Td> <Td> 0.0226 </Td> <Td> 0.573 </Td> <Td> 44.3 </Td> <Td> 17.4 </Td> <Td> 0.509 </Td> <Td> 0.258 </Td> <Td> 66.79 </Td> <Td> 20.36 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 35 A </Td> <Td> 79 A </Td> <Td> 440 A </Td> </Tr> <Tr> <Td> 24 </Td> <Td> 0.0201 </Td> <Td> 0.511 </Td> <Td> 49.7 </Td> <Td> 19.6 </Td> <Td> 0.404 </Td> <Td> 0.205 </Td> <Td> 84.22 </Td> <Td> 25.67 </Td> <Td> </Td> <Td> 3.5 </Td> <Td>--</Td> <Td> 29 A </Td> <Td> 62 A </Td> <Td> 348 A </Td> </Tr> <Tr> <Td> 25 </Td> <Td> 0.0179 </Td> <Td> 0.455 </Td> <Td> 55.9 </Td> <Td> 22.0 </Td> <Td> 0.320 </Td> <Td> 0.162 </Td> <Td> 106.2 </Td> <Td> 32.37 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 24 A </Td> <Td> 49 A </Td> <Td> 276 A </Td> </Tr> <Tr> <Td> 26 </Td> <Td> 0.0159 </Td> <Td> 0.405 </Td> <Td> 62.7 </Td> <Td> 24.7 </Td> <Td> 0.254 </Td> <Td> 0.129 </Td> <Td> 133.9 </Td> <Td> 40.81 </Td> <Td> 1.3 </Td> <Td> </Td> <Td>--</Td> <Td> 20 A </Td> <Td> 39 A </Td> <Td> 218 A </Td> </Tr> <Tr> <Td> 27 </Td> <Td> 0.0142 </Td> <Td> 0.361 </Td> <Td> 70.4 </Td> <Td> 27.7 </Td> <Td> 0.202 </Td> <Td> 0.102 </Td> <Td> 168.9 </Td> <Td> 51.47 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 17 A </Td> <Td> 31 A </Td> <Td> 174 A </Td> </Tr> <Tr> <Td> 28 </Td> <Td> 0.0126 </Td> <Td> 0.321 </Td> <Td> 79.1 </Td> <Td> 31.1 </Td> <Td> 0.160 </Td> <Td> 0.0810 </Td> <Td> 212.9 </Td> <Td> 64.90 </Td> <Td> 0.83 </Td> <Td> 1.4 </Td> <Td>--</Td> <Td> 14 A </Td> <Td> 24 A </Td> <Td> 137 A </Td> </Tr> <Tr> <Td> 29 </Td> <Td> 0.0113 </Td> <Td> 0.286 </Td> <Td> 88.8 </Td> <Td> 35.0 </Td> <Td> 0.127 </Td> <Td> 0.0642 </Td> <Td> 268.5 </Td> <Td> 81.84 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 12 A </Td> <Td> 20 A </Td> <Td> 110 A </Td> </Tr> <Tr> <Td> 30 </Td> <Td> 0.0100 </Td> <Td> 0.255 </Td> <Td> 99.7 </Td> <Td> 39.3 </Td> <Td> 0.101 </Td> <Td> 0.0509 </Td> <Td> 338.6 </Td> <Td> 103.2 </Td> <Td> 0.52 </Td> <Td> 0.86 </Td> <Td>--</Td> <Td> 10 A </Td> <Td> 15 A </Td> <Td> 86 A </Td> </Tr> <Tr> <Td> 31 </Td> <Td> 0.00893 </Td> <Td> 0.227 </Td> <Td> 112 </Td> <Td> 44.1 </Td> <Td> 0.0797 </Td> <Td> 0.0404 </Td> <Td> 426.9 </Td> <Td> 130.1 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 9 A </Td> <Td> 12 A </Td> <Td> 69 A </Td> </Tr> <Tr> <Td> 32 </Td> <Td> 0.00795 </Td> <Td> 0.202 </Td> <Td> 126 </Td> <Td> 49.5 </Td> <Td> 0.0632 </Td> <Td> 0.0320 </Td> <Td> 538.3 </Td> <Td> 164.1 </Td> <Td> 0.32 </Td> <Td> 0.53 </Td> <Td>--</Td> <Td> 7 A </Td> <Td> 10 A </Td> <Td> 54 A </Td> </Tr> <Tr> <Td> 33 </Td> <Td> 0.00708 </Td> <Td> 0.180 </Td> <Td> 141 </Td> <Td> 55.6 </Td> <Td> 0.0501 </Td> <Td> 0.0254 </Td> <Td> 678.8 </Td> <Td> 206.9 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 6 A </Td> <Td> 7.7 A </Td> <Td> 43 A </Td> </Tr> <Tr> <Td> 34 </Td> <Td> 0.00630 </Td> <Td> 0.160 </Td> <Td> 159 </Td> <Td> 62.4 </Td> <Td> 0.0398 </Td> <Td> 0.0201 </Td> <Td> 856.0 </Td> <Td> 260.9 </Td> <Td> 0.18 </Td> <Td> 0.3 </Td> <Td>--</Td> <Td> 5 A </Td> <Td> 6.1 A </Td> <Td> 34 A </Td> </Tr> <Tr> <Td> 35 </Td> <Td> 0.00561 </Td> <Td> 0.143 </Td> <Td> 178 </Td> <Td> 70.1 </Td> <Td> 0.0315 </Td> <Td> 0.0160 </Td> <Td> 1079 </Td> <Td> 329.0 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 4 A </Td> <Td> 4.8 A </Td> <Td> 27 A </Td> </Tr> <Tr> <Td> 36 </Td> <Td> 0.00500 </Td> <Td> 0.127 </Td> <Td> 200 </Td> <Td> 78.7 </Td> <Td> 0.0250 </Td> <Td> 0.0127 </Td> <Td> 1361 </Td> <Td> 414.8 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 4 A </Td> <Td> 3.9 A </Td> <Td> 22 A </Td> </Tr> <Tr> <Td> 37 </Td> <Td> 0.00445 </Td> <Td> 0.113 </Td> <Td> 225 </Td> <Td> 88.4 </Td> <Td> 0.0198 </Td> <Td> 0.0100 </Td> <Td> 1716 </Td> <Td> 523.1 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 3 A </Td> <Td> 3.1 A </Td> <Td> 17 A </Td> </Tr> <Tr> <Td> 38 </Td> <Td> 0.00397 </Td> <Td> 0.101 </Td> <Td> 252 </Td> <Td> 99.3 </Td> <Td> 0.0157 </Td> <Td> 0.00797 </Td> <Td> 2164 </Td> <Td> 659.6 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 3 A </Td> <Td> 2.4 A </Td> <Td> 14 A </Td> </Tr> <Tr> <Td> 39 </Td> <Td> 0.00353 </Td> <Td> 0.0897 </Td> <Td> 283 </Td> <Td> 111 </Td> <Td> 0.0125 </Td> <Td> 0.00632 </Td> <Td> 2729 </Td> <Td> 831.8 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 2 A </Td> <Td> 1.9 A </Td> <Td> 11 A </Td> </Tr> <Tr> <Td> 40 </Td> <Td> 0.00314 </Td> <Td> 0.0799 </Td> <Td> 318 </Td> <Td> 125 </Td> <Td> 0.00989 </Td> <Td> 0.00501 </Td> <Td> 3441 </Td> <Td> 1049 </Td> <Td>--</Td> <Td>--</Td> <Td>--</Td> <Td> 1 A </Td> <Td> 1.5 A </Td> <Td> 8.5 A </Td> </Tr> </Table> <Tr> <Th> AWG </Th> <Th_colspan="2"> Diameter </Th> <Th_colspan="2"> Turns of wire, without insulation </Th> <Th_colspan="2"> Area </Th> <Th_colspan="8"> Copper wire </Th> </Tr>

What is the diameter of #8 awg stranded wire
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