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Size
(AWG)
Stranding Stranding
Class
Weight
(lbs/1000
ft)
Diameter (mils) Hard Drawn Medium-Hard Drawn Soft-Drawn (Annealed) Allowable
Ampacity+
Individual
Wires
Complete
Conductor
Rated
Strength
(lbs)
DC
Resistance
(ohms/1000
ft)
@20°C
Rated
Strength
(lbs)
DC
Resistance
(ohms/1000
ft)
@20°C
Rated
Strength
(lbs)
DC
Resistance
(ohms/1000
ft)
@20°C
STRANDED
8 7 B 51 49 146 777 .6663 610 .6629 499 .6408 95
6 7 B 81 61 184 1228 .4191 959 .4169 794 .4030 130
4 7 A, B 128.9 77 232 1938 .2636 1505 .2622 1320 .2534 170
3 7 A, B 162.5 87 260 2433 .2090 1885 .2079 1670 .2010 200
2 7 A, B 204.9 97 292 3050 .1660 2360 .1650 2110 .1578 230
1 7 A 258.4 109 328 3801 .1316 2955 .1309 2552 .1252 265
1/0 7 A, AA 326.1 123 368 4752 .1042 3705 .1037 3221 .1002 310
2/0 7 A, AA 410.9 138 414 5926 .08267 4640 .08224 4062 .07949 355
2/0 19 B 410.9 84 418 6690 .08267 4765 .08224 4024 .07949 355
3/0 7 A, AA 518.1 155 464 7366 .06556 5812 .06522 5118 .06304 410
4/0 7 A, AA 653.3 174 522 9154 .05199 7278 .05172 6459 .04999 480
4/0 19 B 653.3 106 528 9617 .05199 7479 .05172 6453 .04999 480
250 19 A 771.9 115 574 11360 .04400 8836 .04378 7627 .04231 530
250 37 B 771.9 82 575 11600 .04400 8952 .04378 7940 .04231 530
300 19 A 926.2 126 628 13510 .03667 10530 .03648 9160 .03526 590
350 19 A 1080.6 136 679 15590 .03143 12200 .03127 10680 .03022 650
500 37 A, B 1543.8 116 814 22510 .02200 17550 .02189 15240 .02116 810
600 37 A, AA 1852.5 127 891 27020 .01834 21060 .01825 18300 .01763 910
750 61 A, B 2315.6 111 998 34090 .01467 26510 .01459 22890 .01410 1040
1000 61 A, B 3087.5 128 1152 45030 .01100 35100 .01094 30500 .01058 1240
+Ampacity based on 75°C conductor temperature; 25°C ambient temperature; 2 ft./sec. wind in sun.
Bare Copper
Thu Mar 21 11:12:22 EDT 2013 Page 3 of 3