12 VLT
®
Soft Starter Pocket Guide
The soft starter’s current rating at the required start duty must be at least equal to the •
motor’s nameplate rating. If the motor’s nameplate rating is not available, approximate
information is available from the following table.
Motor Power Current rating at diff erent voltages
kW HP 220-230 V 380-400 V 440 V 500 V 660-690 V
7. 5 10 27 15. 5 13 .7 12 8 .9
11 15 39 2 2 2 0.1 18 .4 14
15 20 52 30 26.5 23 17.3
18.5 25 64 37 32.8 28.5 21.3
22 30 75 44 39 33 25.4
25 35 85 52 45.3 39.4 30.3
30 40 103 60 51.5 45 34.6
37 50 126 72 64 55 42
45 60 150 85 76 65 49
55 75 182 105 90 80 61
75 100 240 138 125 105 82
90 125 295 170 146 129 98
110 15 0 3 56 2 05 178 156 118
132 180 425 245 215 187 140
140 190 450 260 227 200 145
147 200 472 273 236 207 152
150 205 483 280 24 6 210 159
160220520300256220170
185 250 595 342 295 263 200
200 270 626 370 321 281 215
220 300 700 408 353 310 235
250 340 800 460 401 360 274
257 350 826 475 412 365 280
280 380 900 510 450 400 305
295 400 948 546 473 416 320
300 410 980 565 481 420 325
315 430 990 584 505 445 337
335 450 1100 620 518 472 355
355 480 1150 636 549 500 370
375 500 1180 670 575 527 395
400 545 1250 710 611 540 410
425 580 1330 760 650 574 445
445 600 1400 790 680 595 455
450 610 1410 800 690 608 460
475 645 1490 850 730 645 485
500 680 1570 900 780 680 515
560 760 1750 1000 860 760 570
600 800 1875 1085 937 825 625
650 870 2031 1176 1015 894 677
700 940 2187 1266 1093 962 729
750 1000 2343 1357 1172 1031 781
800 1070 2499 1447 1250 1100 833
850 1140 2656 1537 1328 1168 885
900 1250 2812 1628 1406 1237 937
950 1275 2968 1718 1484 1306 989
1000 13 40 3124 18 09 1562 1375 1041
Note: Information is based on a 4-pole motor
Soft Starter Sizing
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