Honeywell
CD3200 up to110A
User’s Manual ver. 2.0
www.honeywell.com/imc 34
9. Fuse and fuseholder for CE mark unit
9.1 Fuse and Fuse Code
The thyristor unit must be protected by fuses against short circuit selecting the proper I²t that
must be lower than thyristor one. The same caution must be taken if Circuit Breaker is used.
Remember that is very difficult to protect the thyristor if this choise is done.
WARNING!! USE SEMICONDUCTOR FUSES ONLY WITH proper I
2
t
Sizes
I²T (max)
(A² sec.)
Size and current
Fuse and
Fuseholder
Code
Fuse
Code
15
600
10,3X38 / 16A
FFH1038/16A
FU1038/16A
25
600
10,3X38 / 32A
FFH1038/32A
FU1038/32A
35
780
14X15 / 40A
FFH1451/40A
FU1451/40A
45
1500
14X15 / 50A
FFH1451/50A
FU1451/50A
60
3800
22X58 / 80A
FFH2258/80A
FU2258/80A
90
6970
22X58 / 125A
FFH2258/125A
FU2258/125A
110
11000
27x60 / 160A
FFHPSI27/160A
FFHPSI27/160A
High speed fuses are only used for the thyristor protection and can not be used to
protect the installation.
The user installation must be protect by electromagnetic circuit breaker or by fuse
isolator.
The warranty of thyristor is null if no proper fuses are used. See tab above.