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CHAPTER 3 - INSTALLATION AND CONNECTION
40
The SSW-06 Soft-Starter is suitable to use in a circuit capable of
supplying at most the current (symmetric Arms) established for each
model, and, respective voltage (V) according to table 3.8. This, when
protected by high speed semiconductor fuses.
3.2.4.1 Power Supply Capacity
Standard
Connection
220-575V (kA)
10
10
10
10
18
18
18
30
30
42
42
85
85
85
85
Model
SSW-06.0085
SSW-06.0130
SSW-06.0170
SSW-06.0205
SSW-06.0255
SSW-06.0312
SSW-06.0365
SSW-06.0412
SSW-06.0480
SSW-06.0604
SSW-06.0670
SSW-06.0820
SSW-06.0950
SSW-06.1100
SSW-06.1400
Inside - Delta
Connection
220-575V (kA)
10
18
18
18
30
30
42
42
42
85
85
85
100
100
125
Table 3.8
- Maximum current capacity of the power supply
The fuses to be used in the input must be high speed semiconductor
fuses with l
2
t lower of equal to 75% of the SCR value indicated above
(A
2
s).
These fuses will protect the SRCs in case of a short-circuit. Normal
fuses can also be used, instead of the high speed, which will protect
the installation from short-circuits, but the SCRs will not be protected.
3.2.4.2 Recommended Fuses
Standard
Connection
In (A)
200
250
450
500
500
500
550
700
900
900
900
1400
1600
1600
2000
Model
SSW-06.0085
SSW-06.0130
SSW-06.0170
SSW-06.0205
SSW-06.0255
SSW-06.0312
SSW-06.0365
SSW-06.0412
SSW-06.0480
SSW-06.0604
SSW-06.0670
SSW-06.0820
SSW-06.0950
SSW-06.1100
SSW-06.1400
Delta - Inside
Connection
In (A)
315
350
500
550
700
700
700
1250
1400
1600
1600
2000
2200
2500
3000
I²t of the SCR
(kA²s)
80
84
245
320
238
238
320
1452
4250
4250
4250
4250
14000
14000
15125
Table 3.9
- Recommended Fuses.
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