Notes:
• Table shows maximum allowable length of submersible cable for the given full load current
where site voltage is normal ie 415 V
• For other voltages, the cable size is to be selected for the length which is calculated as follows.
• Calculated length = (415 / Actual voltage) x Actual length
• 7.5 HP and above are SD motors. For these motors, the actual current is 1/√3 the FL current
• The cable size and maximum allowable length are arrived at accordingly
Submersible Cable Selection Chart (For 415 V, 50 Hz Ac power supply)
FL
Current
(Amps)
Motor Rating
Cable size in Sq.mm
1.5 2.5 4.0 6.0 10.0 16.0 25.0 35.0 50.0
KW HP Maximum Length of Cable in Metres
2.75 0.75 1 262 437 705
3.25 1.1 1.5 222 370 596 895
4.5 1.5 2 160 267 430 646
6.5 2.2 3 111 185 298 447 773
8.5 3 4 84 141 228 342 590 933
10 3.7 5 72 120 193 290 502 793
12 4.5 6 60 100 161 242 426 661
14.5 5.5 7.5 DOL 82 133 200 346 547
14.5 5.5 7.5 SD 86 143 231 347 600 947
18 6.7 9 89 115 186 279 483 763
19.5 7.5 10 69 106 172 258 446 704
25 9.3 12.5 64 83 134 201 348 549 852
29 11 15 71 155 173 300 473 735
34 13 17.5 98 148 256 404 626 822
39 15 20 87 129 223 352 546 769
43 18.5 25 78 117 202 319 495 697
52 22.5 30 96 167 264 409 577 828
60 26 35 145 229 355 500 717
65 30 40 133 211 327 461 662
The pumpset is provided with a 3m long 3-core PVC-insulated flat cable emerging from the motor, one cable
for DOL versions and two cables for SD versions. Refer TABLE 2 for the selection of cables from starter to
Submersible Motor:
Cable Selection
OMOW001A 18 2020.01
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