Grundfos SP Serie Instrucciones De Instalación Y Operación página 35

10.4.1 115 V and 230 V, 1-phase, 60 Hz
Maximum submersible power cable length (maximum cable length in feet, starter to motor)
Motor
[Hp]
rating
14 12
130 210
0.33
115 V
(40) (64)
1-ph
100 160
60 Hz
0.5
(30) (49)
550 880
0.33
(168) (268)
400 650
0.5
(122) (198)
300 480
0.75
(91) (146)
250 400
1
(76) (122)
190 310
1.5
(58) (94)
230 V
150 250
1-ph 2
(46) (76)
60 Hz
120 190
3
(37) (58)
110*
5 -
(34*)
7.5 - -
10 - -
15 - -
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 allowable length of aluminum
is considerably shorter than copper wire of
same size.
• 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 the 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).
AWG copper wire size
10 8 6 4
340 540 840 1300
(104) (165) (256) (396)
250 390 620 960
(76) (119) (189) (293)
1390 2190 3400 5250
(424) (668) (1036) (1600)
1020 1610 2510 3880
(311) (491) (765) (1183)
760 1200 1870 2890
(232) (366) (570) (881)
630 990 1540 2380
(192) (302) (469) (725)
480 770 1200 1870
(146) (235) (366) (570)
390 620 970 1530
(119) (189) (296) (466)
300 470 750 1190
(91) (143) (229) (363)
180 280 450 710
(55) (85) (137) (216)
120* 200 310 490
(37*) (61) (94) (149)
160* 250 390
-
(49*) (76) (119)
170* 270
- -
(52*) (82)
[ft (m)]
3 2 1
1610 1960 2390 2910
(491) (597) (728) (887)
1190 1460 1780 2160
(363) (445) (543) (658)
6520 7960 9690 11770
(1987) (2426) (2954) (3587)
4810 5880 7170 8720
(1466) (1792) (2185) (2658)
3580 4370 5330 6470
(1091) (1332) (1625) (1972)
2960 3610 4410 5360
(902) (1100) (1344) (1634)
2320 2850 3500 4280
(707) (869) (1067) (1305)
1910 2360 2930 3620
(582) (719) (893) (1103)
1490 1850 2320 2890
(454) (564) (707) (881)
890 1110 1390 1740
(271) (338) (424) (530)
610 750 930 1140
(186) (229) (283) (347)
490 600 750 930
(149) (183) (229) (283)
340 430 530 660
(104) (131) (162) (201)
0 00 000 0000
3540 4210 5060
(1079) (1283) (1542)
2630 3140 3770
(802) (957) (1149)
14320 17050 20460
(4365) (5197) (6236)
10620 12660 15210
(3237) (3859) (4636)
7870 9380 11250
(2399) (2859) (3429)
6520 7780 9350
(1987) (2371) (2850)
5240 6300 7620
(1597) (1920) (2323)
4480 5470 6700
(1366) (1667) (2042)
3610 4470 5550
(1100) (1362) (1692)
2170 2680 3330
(661) (817) (1015)
1410 1720 2100
(430) (524) (640)
1160 1430 1760
(354) (436) (536)
820 1020 1260
(250) (311) (384)
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