28
CD3000S
1PH from 10A to 90A
User’s manual
Fuses and Fuse holder
Warning:
High speed fuses are only used for the thyristor protection and can not be used to
protect the installation.
CD3000S unit must be protected against short circuit by High speed fuses.
The Fuses must have I²t 20% less than thyristor’s I²t.
The warranty of thyristor is null if no proper fuses are used. See tab.
Fuses and Fuse holder Code for CE
Size
Fuse Holder Code
Fuse Code
Total Current
(A
RMS
)
I
2
t (A
2
sec.)
Quantity
for each
phase
2x10A (S0)
FFH1038
FU1038/16A
16
150
2
15A (S0)
FFH1038
FU1038/16A
16
150
1
25A (S0)
FFH1038
FU1038/32A
32
600
1
35A (S3)
FFH1451
FU1451/40A
40
1650
1
45A (S3)
FFH1451
FU1451/50A
50
2000
1
60A (S7)
FFH2258
FU2258/80A
80
6550
1
90A (S7)
FFH2258
FU2258/125A
125
14000
1
Fuses and Fuse Holder Code for UL (Standard version only)
Size
200 kA
RMS
Symmetrical A.I.C.
Quantity
for each
phase
Fuse Holder Code
Fuse Code
Total Current
(A
RMS
)
I
2
t (A
2
sec)
Vac
2x10A (S0)
FFH1038
FU1038/16AUL
16
150
600
2
15A (S0)
FFH1038
FU1038/16AUL
16
150
600
1
25A (S0)
FFH1038
FU1038/32AUL
32
600
600
1
35A (S3)
FFH1451
FU1451/40AUL
40
750
700
1
45A (S3)
FFH1451
FU1451/50AUL
50
1800
700
1
60A (S7)
FFH2258
FU2258/80AUL
80
6600
700
1
90A (S7)
FFH2760
FU2760/125AUL
125
6970
660
1
Note:
The Thyristor Switch Modules “CD3000S Series” may be protected by any equivalent UL Listed or UL
Recognized External Semiconductor Fuses, on condition that these fuses have the same ratings of the
above fuses evaluated during the Short Circuit Test and in particular with I
2
t equal or lower than tested
fuse.
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