Wire Sizing - Xylem CentriPro AQUAVAR SOLO Manual De Instrucciones

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
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
Controller Motor
Output HP
14 12
¾ 690 1100 1748 2523 3978 6316 7884 9945
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
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
10 8 6 4 3
706 1020 1608 2552 3186 4019 5065 6383 8055
571 824 1300 2064 2576 3250 4095 5161 6513 8201
455 657 1036 1644 2052 2589 3262 4111 5188 6533 8236 9710
331 478 754 1197 1495 1886 2376 2995 3779 4759 5999 7073
246 355 561 890 1111 1401 1766 2225 2808 3536 4458 5256
* 218 343 545 680
Copper Wire Size 75ºC Insulation Exposed to a Maximum of 50ºC (122ºF) Ambient Temperature ②
10 8 6 4 3
1413 2040 3216 5106 6375 8041
1126 1625 2562 4068 5078 6406 8072
820 1184 1866 2963 3699 4666 5879 7410 9351
609 880 1387 2202 2749 3467 4369 5506 6949 8750
373 539 849 1348 1683 2123 2675 3372 4255 5358 6755 7964
* 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
858 1081 1363 1720 2165 2730 3219
2 1 1/0 2/0 3/0
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
8455 9852
6283 7321 8343
3847 4483 5109
4/0 250 300 350 400
9520
4/0
23544
17290
12160
10060
4/0
17564
13332
11408
9969
9070
500
6348
500