Copper Conductor and Stranding Data

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Approx. O.D. Pounds per 1000 ft. Circular Mils Size AWG/CM CONCENTRIC STRAND ROPE LAY
Concentric Strand
ROPE LAY
Bunch Strand
Class AA Class A Class B Class C Class D Class G Class H Class K
30AWG
(.010")
Class M
34AWG
(.0063")
.0050 .0757 25.00 36                  
.0056 .0954 31.52 35                  
.0063 .1203 39.75 34                  
.0071 .1517 50.13 33                  
.0080 .1913 63.21 32                  
.0089 .2413 79.70 30                  
.0100 .3042 100.5 30                  
.0113 .3836 126.7 29                  
.0126 .4837 159.8 28                  
.0142 .6100 201.5 27                  
.0159 .7692 254.1 26                  
.0179 .9699 320.4 25                  
.0201 1.223 404.0 24                  
.0226 1.542 509.5 23                  
.0254 1.945 642.4 22                  
.0285 2.452 810.1 21                  
.0363 3.154 1,020 20     7 19       10 26
.0456 5.015 1,620 18     7 19       16 41
.0576 7.974 2,580 16     7 19       26 65
.0726 12.68 4,110 14     7 19 37 49   41 104
.0915 20.16 6,530 12     7 19 37 49   65 186
.1160 32.06 10,380 10     7 19 37 49   104 259
.1600 40.42 13,090 9     7 19 37 49 133    
.1460 51.0 16,510 8     7 19 37 49 133 168 420
.1840 80.9 26,240 6     7 19 37 49 133 266 665
.2320 129 41,740 4 3 7 7 19 37 49 133 420 1064
.2600 162 52,620 3 3 7 7 19 37 49 133 532 1323
.2990 205 66,630 2 3 7 7 19 37 49 133 665 1666
.3320 259 83,690 1 3 7 19 37 61 133 259 836 2107
.3730 326 105,600 1/0 7 7 19 37 61 133 259 1064 2646
.4190 411 133,100 2/0 7 7 19 37 61 133 259 1323 3325
.4700 518 167,800 3/0 7 7 19 37 61 133 259 1666 4256
.5280 653 211,600 4/0 7 7 19 37 61 133 259 2107 5320
.5750 772 250,000 250,000 12 19 37 61 91 259 427 2499 6384
.6300 925 300,000 300,000 12 19 37 61 91 259 427 2989 7581
.6810 1080 350,000 350,000 12 19 37 61 91 259 427 3458 8806
.7280 1236 400,000 400,000 19 19 37 61 91 259 427 3990 10,101
.8130 1542 500,000 500,000 19 37 37 61 91 259 427 5054 12,691
.8930 1850 600,000 600,000 37 37 61 91 127 427 703 5985 14,945
.9980 2316 750,000 750,000 37 61 61 91 127 427 703 7581 18,788
1.152 3086 1,000,000 1,000,000 37 61 61 91 127 427 703 10,101 25,193

Dimensions and Weights of Solid Copper Wire

Size AWG Approximate Diameter Circular Mils Square Inches Approximate Lbs/Mft
34 0.0063 39.7 0.0000312 0.120
32 0.0080 64.0 0.0000503 0.194
30 0.0100 100 0.0000785 0.303
29 0.0113 128 0.000100 0.387
28 0.0126 159 0.000125 0.481
27 0.0142 202 0.000158 0.610
26 0.0159 253 0.000199 0.765
25 0.0179 320 0.000252 0.970
24 0.0201 404 0.000317 1.22
23 0.0226 511 0.000401 1.55
22 0.0253 640 0.000503 1.94
21 0.0285 812 0.000638 2.46
20 0.0320 1020 0.000804 3.10
18 0.0403 1620 0.00128 4.92
16 0.0508 2580 0.00203 7.81
14 0.0641 4110 0.00323 12.4
12 0.0808 6530 0.00513 19.8
10 0.1019 10,380 0.00815 31.43
9 0.1144 13,090 0.01028 39.62
8 0.1285 16,510 0.01297 49.98
7 0.1443 20,820 0.01635 63.03
6 0.1620 26,240 0.02061 79.44
5 0.1819 33,090 0.02599 100.2
4 0.2043 41,740 0.03278 130.3
3 0.2294 52,620 0.04133 159.3
2 0.2576 66,360 0.05212 200.9

STRANDING-CLASS CONSTRUCTION AND USES

Concentric-lay Conductors
Class B - Power cables
Class C - Power cables where more flexible stranding from Class B is desired
Class D - Power cables where extra flexible stranding is desired

Rope-lay and Bunch-stranded Conductors
Class G - All cables for portable use
Class H - All cables where extreme flexibility is required, e.g. take-up reels
Class I - Apparatus cable and motor leads
Class K - Cords and cables 30 AWG copper wires - Stationary service
Class M - Cords and cables 34 AWG copper wires - Constant service

Note: Class G and H shall have concentric-lay stranded members and Class I, K and M shall have bunched stranded members.