40
SECTION 7: Cable Selection Guide
Hitachi
®
6”– 8” Submersible Motors
7.6 Motor Fuse Sizing and Cable Selection
CABLE SELECTION
60˚
COPPER CABLE SIZE - From Main Breaker Panel to Motor (in feet)
MOTOR
AWG MCM
VOLTS /
HZ HP KW
FUSE
STD
Dual
Element
14 12 10 8 6 4 3 2 1 0 00 000 0000 250 300 350 400 500
THREE PHASE
230 V
60 Hz
5 4 45 25 149 237 378 598 931 1484 1865 2356 2967 3746 4726 5966 7516 8873
8 6 60 35 - - 247 391 609 970 1220 1540 1940 2449 3090 3901 4914 5802 6965 8142 9308
10 8 80 45 - - - 308 479 764 961 1213 1529 1930 2434 3073 3872 4571 5488 6415 7334 9125
15 11 125 70 - - - 221 344 548 689 871 1097 1384 1746 2205 2778 3279 3937 4602 5261 6546
20 15 150 90 - - - - 264 420 528 667 841 1061 1339 1690 2130 2514 3018 3528 4034 5019
25 19 200 100 - - - - - 332 417 527 664 838 1057 1334 1681 1985 2383 2785 3184 3962
30 22 225 125 - - - - - - 337 426 537 677 855 1079 1359 1605 1926 2252 2575 3203
40* 30 300 175 - - - - - - - 328 413 522 659 831 1047 1236 1484 1735 1984 2468
460 V
60 Hz
5 4 20 10 595 947 1511 2393 3723 5935 7461 9422
8 6 30 15 389 619 988 1564 2434 3880 4878 6161 7761 9797
10 8 40 20 307 488 778 1233 1918 3057 3844 4854 6115 7719 9738
15 11 60 30 - 350 558 884 1376 2193 2757 3482 4387 5537 6986 8819
20 15 80 45 - - 428 678 1055 1682 2114 2670 3363 4245 5356 6761 8518
25 19 100 50 - - - 535 833 1328 1669 2108 2655 3351 4228 5338 6725 7939 9531
30 22 110 60 - - - 433 673 1073 1349 1704 2147 2710 3419 4316 5437 6419 7706 9008
40 30 150 80 - - - - 519 827 1040 1313 1654 2088 2634 3325 4189 4946 5937 6940 7935 9873
40* 30 150 80 - - - - 502 801 1007 1271 1601 2022 2550 3220 4056 4789 5749 6720 7683 9559
50 37 175 100 - - - - - 639 803 1014 1277 1612 2034 2568 3235 3819 4585 5359 6127 7623
50* 37 175 100 - - - - - 691 869 1097 1382 1745 2201 2779 3501 4133 4961 5799 6631 8250
60 45 225 125 - - - - - - 675 852 1073 1355 1709 2158 2719 3210 3853 4504 5149 6407
60* 45 225 125 - - - - - - 705 890 1121 1415 1785 2254 2839 3352 4024 4704 5378 6691
75 55 250 150 - - - - - - - 735 926 1168 1474 1861 2344 2768 3323 3884 4441 5525
100 75 350 200 - - - - - - - - - 878 1108 1399 1762 2081 2498 2920 3338 4153
125 93 450 250 - - - - - - - - - - 893 1127 1420 1676 2012 2352 2689 3346
150 111 500 275 - - - - - - - - - - - - 1162 1371 1646 1924 2200 2737
Lengths only meet the US National Electrical Code ampacity requirements for individual conductors rated 60° C in free air or water, NOT in magnetic enclosures, conduit or direct buried. Refer
to NEC Table 310.15(B)(17) for more information.
* = motors are 8” diameter
Hitachi
®
is a registered trademark of Hitachi Industrial Equipment Systems Co., Ltd.
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