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SPEC AND DESCRIPTION
The table below shows various data including both the resistance of the various wire gauges and the allowable current (ampacity) based on plastic insulation. The diameter information in the table applies to solid wires. Stranded wires are calculated by calculating the equivalent cross sectional copper area. 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.
AWG | Diameter | Turns of wire | Area | NEC copper wireampacity with60/75/90 °Cinsulation (A)[7] | |||
(inch) | (mm) | (per in) | (per cm) | (kcmil) | (mm2) | ||
0000 (4/0) | 0.4600 | 11.684 | 2.17 | 0.856 | 212 | 107 | 195 / 230 / 260 |
000 (3/0) | 0.4096 | 10.404 | 2.44 | 0.961 | 168 | 85.0 | 165 / 200 / 225 |
00 (2/0) | 0.3648 | 9.266 | 2.74 | 1.08 | 133 | 67.4 | 145 / 175 / 195 |
0 (1/0) | 0.3249 | 8.252 | 3.08 | 1.21 | 106 | 53.5 | 125 / 150 / 170 |
1 | 0.2893 | 7.348 | 3.46 | 1.36 | 83.7 | 42.4 | 110 / 130 / 150 |
2 | 0.2576 | 6.544 | 3.88 | 1.53 | 66.4 | 33.6 | 95 / 115 / 130 |
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4 | 0.2043 | 5.189 | 4.89 | 1.93 | 41.7 | 21.2 | 70 / 85 / 95 |
5 | 0.1819 | 4.621 | 5.50 | 2.16 | 33.1 | 16.8 |
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6 | 0.1620 | 4.115 | 6.17 | 2.43 | 26.3 | 13.3 | 55 / 65 / 75 |
8 | 0.1285 | 3.264 | 7.78 | 3.06 | 16.5 | 8.37 | 40 / 50 / 55 |
9 | 0.1144 | 2.906 | 8.74 | 3.44 | 13.1 | 6.63 |
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10 | 0.1019 | 2.588 | 9.81 | 3.86 | 10.4 | 5.26 | 30 / 35 / 40 |
11 | 0.0907 | 2.305 |
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12 | 0.0808 | 2.053 | 12.4 | 4.87 | 6.53 | 3.31 | 25 / 25 / 30 |
14 | 0.0641 |
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