Wire Size and Amp Ratings
Wire Size | 60°C (140°F) | 75°C (167°F) | |||
AWG | (mm²) | Copper | Aluminum | Copper | Aluminum |
14 | (2.1) | 15 | - | 15 | - |
---|---|---|---|---|---|
12 | (3.3) | 20 | 15 | 20 | 15 |
10 | (5.3) | 30 | 25 | 30 | 25 |
8 | (8.4) | 40 | 30 | 50 | 40 |
6 | (13.3) | 55 | 40 | 65 | 50 |
4 | (21.2) | 70 | 55 | 85 | 65 |
3 | (26.7) | 85 | 65 | 100 | 75 |
2 | (33.6) | 95 | 75 | 115 | 90 |
1 | (42.4) | 110 | 85 | 130 | 100 |
1/0 | (53.5) | - | - | 150 | 120 |
2/0 | (67.4) | - | - | 175 | 135 |
3/0 | (85.0) | - | - | 200 | 155 |
4/0 | (107.2) | - | - | 230 | 180 |
250 kcmil | (127) | - | - | 255 | 205 |
300 | (152) | - | - | 285 | 230 |
350 | (177) | - | - | 310 | 250 |
400 | (203) | - | - | 355 | 270 |
500 | (253) | - | - | 380 | 310 |
600 | (304) | - | - | 420 | 340 |
700 | (355) | - | - | 460 | 375 |