Grundfos SP Series Installation And Operating Instructions Manual page 23

1.5 2620
2 2030
3 1580
5 920
7.5 660
10 490
15
575 20
25
30
40
50
60
75
100
Use of wire size smaller than listed will void warranty.
Caution
Notes:
• If aluminum conductor is used, multiply lengths by 0.5. Maximum allowable length of aluminum is
considerably shorter than copper wire of same size.
• The portion of the total cable which is between the service entrance and a 3Ø motor starter should
not exceed 25 % of the total maximum length to assure reliable starter operation. Single-phase
control boxes may be connected at any point of the total cable length.
• Cables #14 to #0000 are AWG sizes, and 250 to 300 are MCM sizes.
Three-phase motor maximum cable length [ft]
(Motor to service entrance) (2)
2530
1480 2330
1060 1680 2650
780 1240 1950
530 850 1340 2090
650 1030 1610
520 830 1300
680 1070
790
2520
2030 3110
1670 2560 3880
1240 1900 2860 3510
1000 1540 2310 2840
850 1300 1960 2400
1060 1600 1970
1190 1460
3420
2890 3500
2380 2890 3290
1770 2150 2440 2790
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