ABB
ABB DC Drives
DCS550 Technical catalog e a
| 3ADW000378R0101
15
Fuse connections
Semiconductor fuses and fuse holders for AC and DC power lines
The DCS550 converter sizes F1, F2, F3 and F4 with rated
currents up to 1000 A require external line fuses for armature
bridge.
The table assigns the AC fuse types to the converter types
involved. In case the converter needs to be equipped with DC
fuses according to the instructions use the same type of fuse
used on the AC side now in the plus and minus line (only for
sizes F1...F4). Blade type fuses are used for all the convert-
ers of construction type F1...F4 except the converters (610 A,
680 A, 740 A, 820 A, 900 A, 1000 A).
Size
Converter type (2-Q)
Converter type (4-Q)
Fuse Type
Fuse holder
Design
fig.
F1
DCS550-S01-0020
DCS550-S02-0025
50A 660V UR
OFAX 00 S3L
1
DCS550-S01-0045
DCS550-S02-0050
63A 660V UR
1
DCS550-S01-0065
DCS550-S02-0075
125A 660V UR
1
DCS550-S01-0090
DCS550-S02-0100
1
F2
DCS550-S01-0135
DCS550-S02-0150
200A 660V UR
OFAX 1 S3
2
DCS550-S01-0180
DCS550-S02-0200
250A 600V UR
2
DCS550-S01-0225
DCS550-S02-0250
315A 660V UR
OFAX 2 S3
2
DCS550-S01-0270
DCS550-S02-0300
500A 660V UR
OFAX 3 S3
3
F3
DCS550-S01-0315
DCS550-S02-0350
3
DCS550-S01-0405
DCS550-S02-0450
700A 660V UR
4
DCS550-S01-0470
DCS550-S02-0520
4
F4
DCS550-S01-0610
DCS550-S02-0680
900A 660V UR
3 x 170H 3006
5
DCS550-S01-0740
DCS550-S02-0820
5
DCS550-S01-0900
DCS550-S02-1000
1250A 660V UR
5
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Recommended fuse connections