Grundfos SP Serie Instrucciones De Instalación Y Operación página 39

10.4.5 575 V, 3-phase, 60 Hz
Maximum submersible power cable length (maximum cable length in feet, starter to motor)
Motor
[Hp]
rating
14 12
5900 9410
5
(1798) (2868)
4270 6810
.75
(1301) (2076)
3630 5800
1
(1106) (1768)
2620 4180
1.5
(799) (1274)
2030 3250
2
(619) (991)
1580 2530
3
(482) (771)
920 1480
5
(280) (451)
660 1060
7.5
(201) (323)
490 780
10
(149) (238)
330* 530
15
(101*) (162)
410*
20 -
575 V
(125*)
3-ph
60 Hz
25 - -
30 - -
40 - -
50 - -
60 - -
75 - -
100 - -
125 - -
150 - -
175 - -
200 - -
Note:
* Indicates single conductor only (not jacketed).
No asterisk indicates both jacketed cable and
single-conductor cables.
• The table is based on copper wire. If
aluminum wire is used, multiply lengths by
0.5.
The maximum permissible length of
aluminum is considerably shorter than
copper wire of same size.
AWG copper wire size
10 8 6 4
- - - -
- - - -
9120
- - -
(2780)
6580
- - -
(2006)
5110 8060
- -
(1558) (2457)
3980 6270
- -
(1213) (1911)
2330 3680 5750
-
(710) (1122) (1753)
1680 2650 4150
-
(512) (808) (1265)
1240 1950 3060 4770
(378) (594) (933) (1454)
850 1340 2090 3260
(259) (408) (637) (994)
650 1030 1610 2520
(198) (314) (491) (768)
520 830 1300 2030
(158) (253) (396) (619)
430* 680 1070 1670
(131*) (207) (326) (509)
500* 790 1240
-
(152*) (241) (378)
410* 640* 1000
-
(125*) (195*) (305)
540* 850
- -
(165*) (259)
690*
- - -
(210*)
- - - -
- - - -
- - - -
- - - -
- - - -
[ft (m)]
3 2 1
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
5940
- -
(1811)
4060
- -
(1237)
3140 3860 4760 5830
(957) (1177) (1451) (1777)
2530 3110 3840 4710
(771) (948) (1170) (1436)
2080 2560 3160 3880
(634) (780) (963) (1183)
1540 1900 2330 2860
(469) (579) (710) (872)
1250 1540 1890 2310
(381) (469) (576) (704)
1060 1300 1600 1960
(323) (396) (488) (597)
860 1060 1310 1600
(262) (323) (399) (488)
640* 790* 970 1190
(195*) (241*) (296) (363)
630* 770*
-
(192*) (235*) (290)
660* 800*
-
(202*) (244*)
700*
- - -
(214*)
- - -
• Make sure that the portion of the total cable
which is between the service entrance and a
motor starter/controller does not exceed 25
% of the total maximum length to ensure
reliable starter operation. Single-phase
control boxes may be connected at any point
of the total cable length.
• The table is based on maintaining motor
terminal voltage at 95 % of service entrance
voltage, running at maximum nameplate
amperes. In general, a voltage drop must be
maintained at 3 V/100 ft or less.
• 1 foot = 0.305 meter (1 meter = 3.28 feet).
0 00 000 0000
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - -
- - -
4770 5780 7030
(1454) (1762) (2143)
3510 4230 5140
(1070) (1289) (1567)
2840 3420 4140
(866) (1042) (1262)
2400 2890 3500
(732) (881) (1067)
1970 2380 2890
(600) (725) (881)
1460 1770 2150
(445) (539) (655)
950 1160 1400 1690
(354) (427) (515)
990* 1190 1440
(302*) (363) (439)
870* 1050* 1270
(265*) (320*) (387)
760* 920* 1110*
-
(232*) (280*) (338*)
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