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Branch Circuit Protection
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protec-
tion must be provided in accordance with the National Electrical Code and any additional local codes, or the
equivalent. Drive shall be protected by fast-acting Class T fuses only.
Terminal Block Wire Size
Input Terminal Block
Frame Size
SDC Plus All Models
Min AWG
Frame 2
20
Frame 3
20
Maximum Torque
Do not use power tools to tighten terminal block screws, use hand tools only. Tighten terminal block screws
to a maximum torque of:
AWG 20 to AWG 6 - 12 in-lbs (1.35 Nm)
AWG 20 to AWG 2 - 31 in-lbs (3.5 Nm)
AWG 16 to AWG 2/0 - 50 in-lbs (5.5 Nm)
Input (Power) Wire and Fuse Sizing
Verify that the dedicated branch circuit for the drive is equipped with a properly-sized fast-acting Class T
fuse. This table includes single-phase input for 230V drives.
Input
Input
1
Model
Voltage
Phase
SDCP-xxx0723
SDCP-xxx1023
230
1
SDCP-xxx1523
SDCP-xxx0723
SDCP-xxx1023
230
3
SDCP-xxx1523
SDCP-xxx1043
SDCP-xxx1543
SDCP-xxx2043
460
3
SDCP-xxx2543
SDCP-xxx3043
1
xxx may be SUB or CEN for this table
2
Wire sizes based on a 3% voltage drop.
Bold
numbers with gray background indicate wire sizes that are larger than the maximum wire rating of the drive's
terminal blocks. External junction box is required to splice cable sizes.
Input Fuse
SubDrive Connect Plus models are suitable for use with fast-acting Class T fuses only.
Generator Sizing
Generator sizes noted above are a minimum recommendation.
1-Phase: Generators should be sized such that their Prime Rating for current capability (typically specified with a
power factor of 1.0) exceeds 150% of the Rated Input Amps for the SubDrive Connect Plus model being used.
3-Phase: Generators should be sized such that their Prime Rating for current capability (typically specified with a
power factor of 0.8) exceeds the Rated Input Amps for the SubDrive Connect Plus model being used.
Output Terminal Block
SDC Plus SUB Models
Max AWG
Min AWG
6
20
2
16
Rated
Minimum
Input
Generator
Input
Fuse
Watts
Amps
Amps
(kW)
29
35
1.7
42
50
5.6
61
70
9.1
33.5
40
9.2
44
50
13.2
56.5
60
17.6
27
30
14.8
37
40
18.5
41
45
21.4
50
60
17.2
60
70
33.5
Output Terminal Block
SDC Plus CEN Models
Max AWG
Min AWG
Max AWG
2
20
2/0
20
AWG 600V Copper Wire Sizes, 75° C Insulation, and Motor Cable Lengths (in
(kVA)
10
8
6
11
-
217
336
15
-
-
232
22
-
-
-
14
-
207
321
18
-
-
244
23
-
-
-
22
-
513
795
30
-
-
580
33
-
-
524
40
-
-
-
48
-
-
-
ELECTRICAL INSTALLATION
Wiring Guidelines
6
2
2
feet)
4
3
2
1
515
628
774
935
356
433
534
646
245
298
368
445
493
602
744
904
376
459
567
688
536
293
357
441
1225
1495
1847
2243
894
1091
1348
1637
806
985
1216
1477
661
807
997
1211
551
673
831
1009
0
2/0
1128
1363
779
941
536
648
1094
1327
833
1010
649
787
2715
3293
1981
2403
1788
2169
1466
1778
1222
1482
17
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