WEG SSW-03 Plus Series User Manual

28
INSTALLATION
3
Table 3.1- Recommended fuses
Type
SSW-03 Plus (A)
120
170
205
255
290
340
410
475
580
670
800
950
1100
1400
Standard Connection
IN (A)
250
315
450
500
500
700
700
900
900
900
1400
1600
1600
2000
Within the Motor Delta
Connection
IN (A)
450
500
700
700
700
700
1250
1400
1600
1600
2000
2200
-
-
I²t of the SCR
(A²s)
119.3k
256k
330k
370k
370k
370k
1452k
4250k
4250k
4250k
4250k
14000k
14000k
15125k
The input fuses must be of ultrarapid type (U.R.). I²t must be
smaller or equal to 75% of the SCR value indicated above
(A²s). These fuses protect the SCR against short-circuit. In-
stead of U.R. fuses you can also use normal fuses that protect
the installation against short-circuit, but this type of fuse does
not protect the SCR.
Table 3.2 – Recommended cables for Standard Connection (100% and 120%IN)
Type
SSW-03
Plus (A)
120
170
205
255
290
340
410
475
580
670
800
950
1100
1400
Standard Connection
Rated Current 100%
Current
100% (A)
120
170
205
255
290
340
410
475
580
670
800
950
1100
1400
Cables
(mm
2
)
35
70
95
120
150
185
240
300
2 x 150
2 x 185
2 x 240
2 x 300
4 x 150
4 x 185
Bus
mm x mm
12 x 2
20 x 3
20 x 3
25 x 5
25 x 5
25 x 5
30 x 5
40 x 5
40 x 5
40 x 10
40 x 10
50 x 10
60 x 10
80 x 10
Maximum Current 120%
Current
120% (A)
144
204
246
306
348
408
492
570
696
804
960
1140
1320
1680
Bus
(mm
2
)
50
95
120
150
185
240
2 x120
2 x 150
2 x 185
2 x 240
2 x 300
4 x 150
4 x 185
4 x 240
Bus
mm x mm
20 x 3
20 x 3
20 x 3
25 x 5
25 x 5
30 x 5
40 x 5
40 x 5
40 x 10
40 x 10
50 x 10
60 x 10
80 x 10
100 x 10
Grounding
Cables
(mm²)
25
35
50
70
95
95
120
150
150
185
240
300
2 x 150
2 x 185

WEG SSW-03 Plus Series Specifications

General

Brand	WEG
Model	SSW-03 Plus Series
Category	Controller
Language	English