|
* * *
|
| AWG |
Diameter
|
Area
[mm2] |
Resistance
Ohms / 1000 ft |
Resistance
** Ohms / km |
Max Current
*** |
Max Frequency
for 100%
skin depth |
| 0000 (4/0) |
0.46 |
11.684 |
107 |
0.049 |
0.16072 |
302 |
125 Hz |
| 000 (3/0) |
0.4096 |
10.40384 |
85 |
0.0618 |
0.202704 |
239 |
160 Hz |
| 00 (2/0) |
0.3648 |
9.26592 |
67.4 |
0.0779 |
0.255512 |
190 |
200 Hz |
| 0 (1/0) |
0.3249 |
8.25246 |
53.5 |
0.0983 |
0.322424 |
150 |
250 Hz |
| 1 |
0.2893 |
7.34822 |
42.4 |
0.1239 |
0.406392 |
119 |
325 Hz |
| 2 |
0.2576 |
6.54304 |
33.6 |
0.1563 |
0.512664 |
94 |
410 Hz |
| 3 |
0.2294 |
5.82676 |
26.7 |
0.197 |
0.64616 |
75 |
500 Hz |
| 4 |
0.2043 |
5.18922 |
21.2 |
0.2485 |
0.81508 |
60 |
650 Hz |
| 5 |
0.1819 |
4.62026 |
16.8 |
0.3133 |
1.027624 |
47 |
810 Hz |
| 6 |
0.162 |
4.1148 |
13.3 |
0.3951 |
1.295928 |
37 |
1100 Hz |
| 7 |
0.1443 |
3.66522 |
10.5 |
0.4982 |
1.634096 |
30 |
1300 Hz |
| 8 |
0.1285 |
3.2639 |
8.37 |
0.6282 |
2.060496 |
24 |
1650 Hz |
| 9 |
0.1144 |
2.90576 |
6.63 |
0.7921 |
2.598088 |
19 |
2050 Hz |
| 10 |
0.1019 |
2.58826 |
5.26 |
0.9989 |
3.276392 |
15 |
2600 Hz |
| 11 |
0.0907 |
2.30378 |
4.17 |
1.26 |
4.1328 |
12 |
3200 Hz |
| 12 |
0.0808 |
2.05232 |
3.31 |
1.588 |
5.20864 |
9.3 |
4150 Hz |
| 13 |
0.072 |
1.8288 |
2.62 |
2.003 |
6.56984 |
7.4 |
5300 Hz |
| 14 |
0.0641 |
1.62814 |
2.08 |
2.525 |
8.282 |
5.9 |
6700 Hz |
| 15 |
0.0571 |
1.45034 |
1.65 |
3.184 |
10.44352 |
4.7 |
8250 Hz |
| 16 |
0.0508 |
1.29032 |
1.31 |
4.016 |
13.17248 |
3.7 |
11 k Hz |
| 17 |
0.0453 |
1.15062 |
1.04 |
5.064 |
16.60992 |
2.9 |
13 k Hz |
| 18 |
0.0403 |
1.02362 |
0.823 |
6.385 |
20.9428 |
2.3 |
17 kHz |
| 19 |
0.0359 |
0.91186 |
0.653 |
8.051 |
26.40728 |
1.8 |
21 kHz |
| 20 |
0.032 |
0.8128 |
0.518 |
10.15 |
33.292 |
1.5 |
27 kHz |
| 21 |
0.0285 |
0.7239 |
0.41 |
12.8 |
41.984 |
1.2 |
33 kHz |
| 22 |
0.0254 |
0.64516 |
0.326 |
16.14 |
52.9392 |
0.92 |
42 kHz |
| 23 |
0.0226 |
0.57404 |
0.258 |
20.36 |
66.7808 |
0.729 |
53 kHz |
| 24 |
0.0201 |
0.51054 |
0.205 |
25.67 |
84.1976 |
0.577 |
68 kHz |
| 25 |
0.0179 |
0.45466 |
0.162 |
32.37 |
106.1736 |
0.457 |
85 kHz |
| 26 |
0.0159 |
0.40386 |
0.129 |
40.81 |
133.8568 |
0.361 |
107 kHz |
| 27 |
0.0142 |
0.36068 |
0.102 |
51.47 |
168.8216 |
0.288 |
130 kHz |
| 28 |
0.0126 |
0.32004 |
0.081 |
64.9 |
212.872 |
0.226 |
170 kHz |
| 29 |
0.0113 |
0.28702 |
0.0642 |
81.83 |
268.4024 |
0.182 |
210 kHz |
| 30 |
0.01 |
0.254 |
0.0509 |
103.2 |
338.496 |
0.142 |
270 kHz |
| 31 |
0.0089 |
0.22606 |
0.0404 |
130.1 |
426.728 |
0.113 |
340 kHz |
| 32 |
0.008 |
0.2032 |
0.032 |
164.1 |
538.248 |
0.091 |
430 kHz |
| 33 |
0.0071 |
0.18034 |
0.0254 |
206.9 |
678.632 |
0.072 |
540 kHz |
| 34 |
0.0063 |
0.16002 |
0.0201 |
260.9 |
855.752 |
0.056 |
690 kHz |
| 35 |
0.0056 |
0.14224 |
0.016 |
329 |
1079.12 |
0.044 |
870 kHz |
| 36 |
0.005 |
0.127 |
0.0127 |
414.8 |
1360 |
0.035 |
1100 kHz |
| 37 |
0.0045 |
0.1143 |
0.01 |
523.1 |
1715 |
0.0289 |
1350 kHz |
| 38 |
0.004 |
0.1016 |
0.00797 |
659.6 |
2163 |
0.0228 |
1750 kHz |
| 39 |
0.0035 |
0.0889 |
0.00632 |
831.8 |
2728 |
0.0175 |
2250 kHz |
| 40 |
0.0031 |
0.07874 |
0.00501 |
1049 |
3440 |
0.0137 |
2900 kHz |
|
The table shows various data including both the resistance of the various wire gauges and the allowable current 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.
***
Rules of thumb
The sixth power of this ratio is very close to 2,5 which leads to the following rules of thumb:
When the diameter of a wire is doubled, the AWG will decrease by 6. (e.g., No. 2 AWG is about twice the diameter of No. 8 AWG.)
When the cross-sectional area of a wire is doubled, the AWG will decrease by 3. (e.g., Two No. 14 AWG wires have about the same cross-sectional area as a single No. 11 AWG wire.)
|