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Size of
Diameter of Solid Conductor
Cross-Sectional Area of Stranded Conductor
Conductor
Nominal
Minimum
Nominal
Minimum
AWG
Mils
mm
Mils
mm
Cmils
mm
Cmils
mm
4/0
460.0
11.68
455
11.56
211600
107.2
207368
105.1
3/0
409.6
10.40
406
10.31
167800
85.01
164444
83.31
2/0
364.8
9.226
361
9.17
133100
67.43
130438
66.08
1/0
324.9
8.252
322
8.18
105600
53.49
103488
52.42
1
289.3
7.348
286
7.26
83690
42.41
82016
41.56
2
257.6
6.543
255
6.48
66360
33.62
65033
32.95
3
229.4
5.827
227
5.77
52620
26.67
51568
26.14
4
204.3
5.189
202
5.13
41740
21.15
40905
20.73
5
181.9
4.620
180
4.57
33090
16.77
32428
16.43
6
162.0
4.115
160
4.06
26240
13.30
25715
13.03
7
144.3
3.665
143
3.63
20820
10.55
20404
10.34
8
128.5
3.264
127
3.23
16510
8.367
16180
8.20
9
114.4
2.906
113
2.87
13090
6.631
12828
6.50
10
101.9
2.588
101
2.57
10380
5.261
10172
5.16
11
90.7
2.30
90
2.29
8230
4.17
8065
4.09
12
80.8
2.05
80
2.03
6530
3.31
6399
3.24
13
72.0
1.83
71
1.80
5180
2.63
5076
2.58
14
64.1
1.63
63.5
1.613
4110
2.08
4028
2.04
15
57.1
1.45
56.5
1.435
3260
1.65
3195
1.62
16
50.8
1.29
50.3
1.278
2580
1.31
2528
1.28
17
45.3
1.15
44.9
1.140
2050
1.04
2009
1.02
18
40.3
1.02
40.0
1.016
1620
0.823
1588
0.807
19
35.9
0.912
35.6
0.904
1290
0.653
1264
0.641
20
32.0
0.813
31.7
0.805
1020
0.519
1000
0.509
21
28.5
0.724
28.2
0.716
812
0.412
796
0.404
22
25.3
0.643
25.0
0.635
640
0.324
627
0.318
23
22.6
0.574
22.4
0.569
511
0.259
501
0.254
24
20.1
0.511
19.9
0.506
404
0.205
396
0.201
25
17.9
0.455
17.7
0.450
320
0.162
314
0.159
26
15.9
0.404
15.7
0.399
253
0.128
248
0.126
27
14.2
0.361
14.1
0.358
202
0.102
198
0.100
28
12.6
0.320
12.5
0.318
159
0.0804
156
0.0790
29
11.3
0.287
11.2
0.284
128
0.0647
125
0.0633
30
10.0
0.254
9.9
0.251
100
0.0507
98
0.0497
31
8.9
0.226
8.81
0.224
79.2
0.0401
77.6
0.0393
32
8.0
0.203
7.92
0.201
64.0
0.0324
62.7
0.0318
33
7.1
0.180
7.03
0.179
50.4
0.0255
49.4
0.0250
34
6.3
0.160
6.24
0.158
39.7
0.020
38.9
0.0197
35
5.6
0.142
5.54
0.141
31.4
0.0159
30.8
0.0156
36
5.0
0.127
4.95
0.126
25.0
0.0127
24.5
0.0124
37
4.5
0.114
4.46
0.113
20.2
0.0103
19.8
0.0100
38
4.0
0.102
3.96
0.101
16.0
0.00811
15.7
0.00796
39
3.5
0.089
3.47
0.088
12.2
0.00621
11.9
0.00603
40
3.1
0.079
3.07
0.078
9.61
0.00487
9.42
0.00477
41
2.8
0.071
2.77
0.070
7.84
0.00397
7.68
0.00389
42
2.5
0.064
2.48
0.063
6.25
0.00317
6.13
0.003115
43
2.2
0.056
2.18
0.055
4.84
0.00245
4.74
0.00240
44
2.0
0.051
1.98
0.050
4.00
0.00203
3.92
0.00198
45
1.76
0.0447
1.74
0.044
3.10
0.00157
3.04
0.00154
46
1.57
0.0399
1.55
0.039
2.46
0.00125
2.41
0.00122
47
1.40
0.0356
1.39
0.035
1.96
0.000993
1.92
0.000973
48
1.24
0.0315
1.23
0.031
1.54
0.000768
1.51
0.000765
49
1.11
0.0282
1.10
0.028
1.23
0.000624
1.21
0.000613
50
0.99
0.0251
0.98
0.025
0.980
0.000497
0.960
0.000486
