Soft Starter Sizing - Danfoss VLT MCD 500 Pocket Manual

Soft Starter Sizing

• 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
kW HP
7.5 10
11 15
15 20
18.5 25
22 30
25 35
30 40
37 50
45 60
55 75
75 100
90 125
110 150
132 180
140 190
147 200
150 205
160 220
185 250
200 270
220 300
250 340
257 350
280 380
295 400
300 410
315 430
335 450
355 480
375 500
400 545
425 580
445 600
450 610
475 645
500 680
560 760
600 800
650 870
700 940
750 1000
800 1070
850 1140
900 1250
950 1275
1000 1340
Note: Information is based on a 4-pole motor
Current rating at different voltages
220-230 V 380-400 V
27 15.5
39 22
52 30
64 37
75 44
85 52
103 60
126 72
150 85
182 105
240 138
295 170
356 205
425 245
450 260
472 273
483 280
520 300
595 342
626 370
700 408
800 460
826 475
900 510
948 546
980 565
990 584
1100 620
1150 636
1180 670
1250 710
1330 760
1400 790
1410 800
1490 850
1570 900
1750 1000
1875 1085
2031 1176
2187 1266
2343 1357
2499 1447
2656 1537
2812 1628
2968 1718
3124 1809
Danfoss Drives · DKDD.PB.551.A1.02 |
440 V 500 V
13.7 12
20.1 18.4
26.5 23
32.8 28.5
39 33
45.3 39.4
51.5 45
64 55
76 65
90 80
125 105
146 129
178 156
215 187
227 200
236 207
246 210
256 220
295 263
321 281
353 310
401 360
412 365
450 400
473 416
481 420
505 445
518 472
549 500
575 527
611 540
650 574
680 595
690 608
730 645
780 680
860 760
937 825
1015 894
1093 962
1172 1031
1250 1100
1328 1168
1406 1237
1484 1306
1562 1375
660-690 V
8.9
14
17.3
21.3
25.4
30.3
34.6
42
49
61
82
98
118
140
145
152
159
170
200
215
235
274
280
305
320
325
337
355
370
395
410
445
455
460
485
515
570
625
677
729
781
833
885
937
989
1041
13