Grundfos SP Serie Instrucciones De Instalación Y Operación página 38

10.4.4 460 V, 3-phase, 60 Hz
Maximum submersible power cable length (maximum cable length in feet, starter to motor)
Motor
[Hp]
rating
14 12
3770 6020
.5
(1149) (1835)
2730 4350
.75
(832) (1326)
2300 3670
1
(701) (1119)
1700 2710
1.5
(518) (826)
1300 2070
2
(396) (631)
1000 1600
3
(305) (488)
590 950
5
(180) (290)
420 680
7.5
(128) (207)
310 500
10
(94) (152)
340*
15 -
(104*)
20 - -
460 V
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.
38
AWG copper wire size
10 8 6 4
9460
- - -
(2883)
6850
- - -
(2088)
5770 9070
- -
(1759) (2765)
4270 6730
- -
(1301) (2051)
3270 5150 8050
-
(997) (1570) (2454)
2520 3970 6200
-
(768) (1210) (1890)
1500 2360 3700 5750
(457) (719) (1128) (1753)
1070 1690 2640 4100
(326) (515) (805) (1250)
790 1250 1960 3050
(241) (381) (597) (930)
540 850 1340 2090
(165) (259) (408) (637)
410 650 1030 1610
(125) (198) (314) (491)
330* 530 830 1300
(101*) (162) (253) (396)
270* 430 680 1070
(82*) (131) (207) (326)
320* 500* 790
-
(98*) (152*) (241)
410* 640
- -
(125*) (195)
540*
- - -
(165*)
440*
- - -
(134*)
- - - -
- - - -
- - - -
- - - -
- - - -
[ft (m)]
3 2 1
- - -
- - -
- - -
- - -
- - -
- - -
- - -
5100 6260 7680
(1554) (1908) (2341)
3800 4680 5750 7050
(1158) (1426) (1753) (2149)
2600 3200 3930 4810
(792) (975) (1198) (1466)
2000 2470 3040 3730
(610) (753) (927) (1137)
1620 1990 2450 3010
(494) (607) (747) (917)
1330 1640 2030 2490
(405) (500) (619) (759)
980 1210 1490 1830
(299) (369) (454) (558)
800 980 1210 1480
(244) (299) (369) (451)
670* 830 1020 1250
(204*) (253) (311) (381)
550* 680* 840 1030
(168*) (207*) (256) (314)
500* 620 760*
-
(152*) (189*) (232*)
600*
- - -
(183*)
- - -
- - -
- - -
• 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
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - -
5900 7110
-
(1798) (2167)
4580 5530
-
(1396) (1686)
3700 4470 5430
(1128) (1362) (1655)
3060 3700 4500
(933) (1128) (1372)
2250 2710 3290
(686) (826) (1003)
1810 2190 2650
(552) (668) (808)
1540 1850 2240
(469) (564) (683)
1260 1520 1850
(384) (463) (564)
940 1130 1380
(287) (344) (421)
740* 890* 1000
(226*) (271*) (305)
630* 760* 920*
-
(192*) (232*) (280*)
670* 810*
- -
(204*) (247*)
590* 710*
- -
(180*) (216*)