Xylem CentriPro AQUAVAR SOLO Manuel D'instructions page 6

Maximum Cable Lengths in Feet to Limit Voltage Drop to 5% for 230 V Systems
1AS15 Controller to Motor – Controllers with 2-Wire 1Ø Motors
Motor Rating
Volts HP kW
½ 0.37
¾ 0.55
230
1 0.75
1½ 1.1
1AS15 Controller to Motor – Controllers with 3-Wire 1Ø Motors
Motor Rating
Volts HP kW
½ 0.37
¾ 0.55
230 1 0.75
1½ 1.1
2 1.5
All Models – Service Entrance to Controller
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
Controller Motor
Input HP
14 12
¾ 279 445
1 226 360
1½ * 286
230V
1 PH
2 * *
3 * *
5 * *
3AS20, 30, 50 Controller to Motor – Controllers with 3Ø Motors
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
Controller Motor
Output HP
14 12
¾ 690 1100
1 558 890
1½ 445 709
230V
3 PH
2 324 516
3 241 384
5 * 235
① Reduce lengths by 13% for 200 V systems.
② Lengths in bold require 90º C wire.
The lengths in each of the Wire Sizing tables represent 100% of the allowable voltage drop when motor is running at full
load. When sizing wire, the voltage drop of each wire segment must be included. The total must not exceed 100% of the
allowable drop. Take for example a 1.5 HP 3Ø motor with a distance from Service Entrance to Controller of 100' and 500'
between the Controller and Motor.
• Service Entrance to Controller = 100' of 10 AWG (100/455) = 22 % (455' is from the S.E. to Controller chart)
• Controller to Motor
If the distance from the Controller to Motor was 600' (600/709) = 85% + 22% = 107%, we would need to use #10 wire
for that segment, ex. 600/1126 = 53% + 22% (for 100' of #10) = 75% which is acceptable. It is also acceptable to use dif-
ferent wire sizes for the Buried and Well sections of wire.
6
Table 2: Wire Sizing
Motor Lead Lengths - CentriPro 2-Wire Motors -
Based on Service Factor Amps, 30º C Ambient and 5% Voltage Drop
SFA 14 12 10
4.7 466 742 1183
6.4 342 545 869
9.1 241 383 611
11.0 199 317 505
Motor Lead Lengths - CentriPro 3-Wire Motors (CSIR) -
Based on Service Factor Amps, 30º C Ambient and 5% Voltage Drop
SFA 14 12 10
6.3 348 553 883
8.3 264 420 670
9.7 226 359 573
11.1 197 314 501
12.2 180 286 456
10 8 6 4 3
706 1020 1608 2552 3186
571 824 1300 2064 2576
455 657 1036 1644 2052
331 478 754 1197 1495
246 355 561 890 1111
* 218 343 545 680
10 8 6 4 3
1748 2523 3978 6316 7884
1413 2040 3216 5106 6375
1126 1625 2562 4068 5078
820 1184 1866 2963 3699
609 880 1387 2202 2749
373 539 849 1348 1683
* Wire does not meet the N.E.C. ampacity requirement.
Shading indicates 40º C maximum ambient.
= 500' of 12 AWG (500/709) = 71 % (709' is from the Controller to Motor chart)
Total Drop (must be ≤ 100%)
60º C & 75º C Insulation - AWG Copper Wire Size
8 6 4
1874 2915 4648
1376 2141 3413
968 1506 2400
801 1246 1986
60º C & 75º C Insulation - AWG Copper Wire Size
8 6 4
1398 2175 3467
1061 1651 2632
908 1413 2252
793 1234 1968
722 1123 1790
2 1 1/0 2/0 3/0
4019 5065 6383 8055
3250 4095 5161 6513 8201
2589 3262 4111 5188 6533
1886 2376 2995 3779 4759
1401 1766 2225 2808 3536
858 1081 1363 1720 2165
2 1 1/0 2/0 3/0
9945
8041
6406 8072
4666 5879 7410 9351
3467 4369 5506 6949 8750
2123 2675 3372 4255 5358
93 %
①
2 1/0 2/0 3/0
7379 11733 14803 18688
5419 8617 10871 13724
3811 6060 7646 9652
3153 5013 6325 7985
2 1/0 2/0 3/0
5505 8753 11044 13942
4178 6644 8383 10582
3575 5685 7173 9055
3124 4968 6268 7913
2843 4520 5703 7199
4/0 250 300 350 400
8236 9710
5999 7073 8455 9852
4458 5256 6283 7321 8343
2730 3219 3847 4483 5109
4/0 250 300 350 400
6755 7964 9520
4/0
23544
17290
12160
10060
4/0
17564
13332
11408
9969
9070
500
6348
500