Xylem IM244R04 SPD Plus Variable Speed Pump Control - Manual (Page 30)

30
APPENDIX B: FUSE AND WIRE SIZING
(CONTINUED)
SPD PLUS INPUT WIRE SIZING CHARTS
Maximum Allowable Conductor Length (50˚C Ambient, 5% drop)
Controller
Ratings
Conductor Size for 75˚C Rated Wire
(Lengths in Bold Require 90˚C Rated Wire)
Controller
Input
Motor
HP
Motor
FLA
Input
Cur-
rent
6 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 500 600 750 1000
230V
1Ø Input,
3Ø
Output
20 54 95.4 393 505 648 826 1050 1247 1501 1760 2018 2518 3036 3810
25 68 120.2 501 642 820 978 1179 1385 1591 1989 2398 3015 3997
30 82 144.9 519 668 799 966 1137 1308 1639 1976 2490 3300
230V
3Ø Input,
3Ø
Output
40 96 169.7 558 670 812 958 1106 1389 1675 2116 2804
50 116 205.0 655 776 899 1135 1368 1736 2300
60 130 229.8 792 1002 1208 1538 2038
460V
40 53 54.1 816 1043 1331 1690 2146 2723 3447
50 70 71.4 765 984 1256 1601 2040 2588 3277 3882
60 80 81.6 846 1084 1386 1772 2251 2855 3385
75 96 98.0 881 1133 1456 1855 2359 2802 3374 3957
100 127 129.6 1363 1745 2083 2514 2955 3398
575V
40 43 43.8 784 1286 1636 2080 2634 3337
50 54 55.3 995 1273 1625 2064 2621 3327
60 64 65.7 1052 1349 1719 2187 2783 3528
75 76 77.6 1121 1434 1832 2338 2969 3763
100 101 103.1 1335 1719 2193 2792 3320
WIRE SIZING
The tables below show the maximum recommended
cable lengths for each model. Note that the tables
show the cable length which will produce a 5%
voltage drop on the cable. The recommended total
voltage drop across all system cables is 5%. Because
of this the lengths given in the table must be adjusted
so the total voltage drop does not exceed 5%. For
example, if the input wire sizing chart gives the
maximum length of 400' and only 100' is used then
only 25% of the total voltage drop (1.25% drop) is
used. The maximum output cable length must then
be adjusted to 75% of its value so that the maximum
voltage drop of 5% is not exceeded.