American wire gauge
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American wire gauge (AWG) tells the diameter of an electrical conductor. The conductor's current capacity depends upon the resistance per unit length and the temperature rating of the insulation. Wire type THHN is rated at 90 °C.
Tables of AWG wire sizes simplified from Wikipedia
AWG | Diameter | Turns of wire, without insulation |
Area | Copper wire | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Resistance/length | Ampacity | |||||||||||||
60 °C | 75 °C | 90 °C | ||||||||||||
(in) | (mm) | (per in) | (per cm) | (kcmil) | (mm2) | (mΩ/m | (mΩ/ft | (A) | ||||||
0000 (4/0) | 0.4600 | 11.684 | 2.17 | 0.856 | 212 | 107 | 0.1608 | 0.04901 | 195 | 230 | 260 | |||
000 (3/0) | 0.4096 | 10.405 | 2.44 | 0.961 | 168 | 85.0 | 0.2028 | 0.06180 | 165 | 200 | 225 | |||
00 (2/0) | 0.3648 | 9.266 | 2.74 | 1.08 | 133 | 67.4 | 0.2557 | 0.07793 | 145 | 175 | 195 | |||
0 (1/0) | 0.3249 | 8.251 | 3.08 | 1.21 | 106 | 53.5 | 0.3224 | 0.09827 | 125 | 150 | 170 | |||
1 | 0.2893 | 7.348 | 3.46 | 1.36 | 83.7 | 42.4 | 0.4066 | 0.1239 | 110 | 130 | 145 | |||
2 | 0.2576 | 6.544 | 3.88 | 1.53 | 66.4 | 33.6 | 0.5127 | 0.1563 | 95 | 115 | 130 | |||
3 | 0.2294 | 5.827 | 4.36 | 1.72 | 52.6 | 26.7 | 0.6465 | 0.1970 | 85 | 100 | 115 | |||
4 | 0.2043 | 5.189 | 4.89 | 1.93 | 41.7 | 21.2 | 0.8152 | 0.2485 | 70 | 85 | 95 | |||
5 | 0.1819 | 4.621 | 5.50 | 2.16 | 33.1 | 16.8 | 1.028 | 0.3133 | ||||||
6 | 0.1620 | 4.115 | 6.17 | 2.43 | 26.3 | 13.3 | 1.296 | 0.3951 | 55 | 65 | 75 | |||
7 | 0.1443 | 3.665 | 6.93 | 2.73 | 20.8 | 10.5 | 1.634 | 0.4982 | ||||||
8 | 0.1285 | 3.264 | 7.78 | 3.06 | 16.5 | 8.37 | 2.061 | 0.6282 | 40 | 50 | 55 | |||
9 | 0.1144 | 2.906 | 8.74 | 3.44 | 13.1 | 6.63 | 2.599 | 0.7921 | ||||||
10 | 0.1019 | 2.588 | 9.81 | 3.86 | 10.4 | 5.26 | 3.277 | 0.9989 | 30 | 35 | 40 | |||
11 | 0.0907 | 2.305 | 11.0 | 4.34 | 8.23 | 4.17 | 4.132 | 1.260 | ||||||
12 | 0.0808 | 2.053 | 12.4 | 4.87 | 6.53 | 3.31 | 5.211 | 1.588 | 20 | 25 | 30 | |||
13 | 0.0720 | 1.828 | 13.9 | 5.47 | 5.18 | 2.62 | 6.571 | 2.003 | ||||||
14 | 0.0641 | 1.628 | 15.6 | 6.14 | 4.11 | 2.08 | 8.286 | 2.525 | 15 | 20 | 25 | |||
15 | 0.0571 | 1.450 | 17.5 | 6.90 | 3.26 | 1.65 | 10.45 | 3.184 | ||||||
16 | 0.0508 | 1.291 | 19.7 | 7.75 | 2.58 | 1.31 | 13.17 | 4.016 | 22*free air | 13*enclosed | 18 | |||
17 | 0.0453 | 1.150 | 22.1 | 8.70 | 2.05 | 1.04 | 16.61 | 5.064 | ||||||
18 | 0.0403 | 1.024 | 24.8 | 9.77 | 1.62 | 0.823 | 20.95 | 6.385 | 10 | 14 | 16 | |||
19 | 0.0359 | 0.912 | 27.9 | 11.0 | 1.29 | 0.653 | 26.42 | 8.051 | — | — | — | |||
20 | 0.0320 | 0.812 | 31.3 | 12.3 | 1.02 | 0.518 | 33.31 | 10.15 | 7.5 | 11 | — | |||
21 | 0.0285 | 0.723 | 35.1 | 13.8 | 0.810 | 0.410 | 42.00 | 12.80 | — | — | — | |||
22 | 0.0253 | 0.644 | 39.5 | 15.5 | 0.642 | 0.326 | 52.96 | 16.14 | 7 | 5 | — | |||
23 | 0.0226 | 0.573 | 44.3 | 17.4 | 0.509 | 0.258 | 66.79 | 20.36 | — | — | — | |||
24 | 0.0201 | 0.511 | 49.7 | 19.6 | 0.404 | 0.205 | 84.22 | 25.67 | 3.5 | 2.1 | — | |||
25 | 0.0179 | 0.455 | 55.9 | 22.0 | 0.320 | 0.162 | 106.2 | 32.37 | — | — | — | |||
26 | 0.0159 | 0.405 | 62.7 | 24.7 | 0.254 | 0.129 | 133.9 | 40.81 | 2.2 | 1.3 | — | |||
27 | 0.0142 | 0.361 | 70.4 | 27.7 | 0.202 | 0.102 | 168.9 | 51.47 | — | — | — | |||
28 | 0.0126 | 0.321 | 79.1 | 31.1 | 0.160 | 0.0810 | 212.9 | 64.90 | 1.4 | 0.85 | — | |||
29 | 0.0113 | 0.286 | 88.8 | 35.0 | 0.127 | 0.0642 | 268.5 | 81.84 | — | — | — | |||
30 | 0.0100 | 0.255 | 99.7 | 39.3 | 0.101 | 0.0509 | 338.6 | 103.2 | 0.86 | 0.52 | — | |||
31 | 0.00893 | 0.227 | 112 | 44.1 | 0.0797 | 0.0404 | 426.9 | 130.1 | — | — | — | |||
32 | 0.00795 | 0.202 | 126 | 49.5 | 0.0632 | 0.0320 | 538.3 | 164.1 | 0.53 | 0.3 | — | |||
33 | 0.00708 | 0.180 | 141 | 55.6 | 0.0501 | 0.0254 | 678.8 | 206.9 | — | — | — | |||
34 | 0.00630 | 0.160 | 159 | 62.4 | 0.0398 | 0.0201 | 856.0 | 260.9 | 0.3 | 0.180 | — | |||
35 | 0.00561 | 0.143 | 178 | 70.1 | 0.0315 | 0.0160 | 1079 | 329.0 | — | — | — | |||
36 | 0.00500 | 0.127 | 200 | 78.7 | 0.0250 | 0.0127 | 1361 | 414.8 | — | — | — | |||
37 | 0.00445 | 0.113 | 225 | 88.4 | 0.0198 | 0.0100 | 1716 | 523.1 | — | — | — | |||
38 | 0.00397 | 0.101 | 252 | 99.3 | 0.0157 | 0.00797 | 2164 | 659.6 | — | — | — | |||
39 | 0.00353 | 0.0897 | 283 | 111 | 0.0125 | 0.00632 | 2729 | 831.8 | — | — | — | |||
40 | 0.00314 | 0.0799 | 318 | 125 | 0.00989 | 0.00501 | 3441 | 1049 | — | — | — |