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THREE PHASE, 4" MOTOR WIRE CHART
THREE PHASE 4" MOTOR WIRE CHART
Based on Service Factor Amps, 30º C Ambient and 5% Voltage Drop
Motor Rating
Volts HP kW
FLA
.5
.37
3.8
.75 .55
3.8
1
.75
4.6
1.5 1.1
6.3
200
2
1.5
7.5
3
2.2
10.9 12.0
5
3.7
18.3 20.2
7.5 5.5
27.0 30.0
.5
.37
2.4
.75 .55
3.3
1
.75
4
1.5 1.1
5.2
230
2
1.5
6.5
3
2.2
9.2
5
3.7
15.7 17.5
7.5 5.5
24
.5
.37
1.3
.75 .55
1.7
1
.75
2.2
1.5 1.1
2.8
460
2
1.5
3.3
3
2.2
4.8
5
3.7
7.6
7.5 5.5
12.2 13.5
10
7.5
1.5 1.1
2.0
2
1.5
2.7
575
3
2.2
3.7
5
3.7
7.0
7.5 5.5
9.1
Motor Lead Lengths – 3-Phase Motors –
60º C and 75º C Insulation - AWG Copper Wire Size
SFA
14
12
10
2.9
657 1045 1667 2641 4109
4.5
423 674 1074 1702 2648
5.5
346 551 879 1392 2166 3454 4342
7.2
265 421 672 1064 1655 2638 3317
8.8
217 344 549
159 253 403
94
150 239
64
101 161
2.9
756 1202 1917 3037 4725 7532 9469
3.9
562 894 1426 2258 3513 5601 7041 8892
4.7
466 742 1183 1874 2915 4648 5843 7379
6.1
359 571 912 1444 2246 3581 4502 5685 7162 9040
7.6
288 459 732 1159 1803 2874 3613 4563 5748 7256 9155
10.1
217 345 551
318
26.4
1.5
2922 4648 7414
2.0
2191 3486 5560 8806
2.5
1753 2789 4448 7045
3.2
1370 2179 3475 5504
3.8
1153 1835 2926 4635 7212
5.3
827 1315 2098 3323 5171
8.5
516 820 1308 2072 3224 5140
325 516 824 1305 2030 3236 4068 5138 6472
2.4
2283 3631 5792
3.3
1660 2641 4212 6671
4.1
1336 2126 3390 5370
7.6
721 1147 1829 2897 4507
10.0
548 871 1390 2202 3426
8
6
4
3
870 1354 2158 2714 3427 4317 5449
638 993 1583 1990 2513 3166 3996
379 590 940 1182 1493 1881 2374 2995 3781 4764
255 397 633 796 1005 1266 1598 2017 2546 3207
872 1357 2163 2719 3434 4326 5460 6889 8696 10956
503 783 1248 1569 1982 2496 3151 3976 5019 6323
334 519 827 1040 1314 1655 2089 2635 3327 4192
2
1
1/0
2/0
3/0 4/0
17
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