REVO S
1PH from 30A to 40A
User’s manual
17
External Fuse (not included)
The thyristor unit without IFH option (Internal Fuse + Fuse-Holder), must be protected by fuses against short circuit.
The Fuses must have I²t 20% less than thyristor’s I²t. The warranty of thyristor is null if no proper fuses are used.
Type
Fuse + Fuse-Holder
Order Code
Fuse Code
Spare Part
Current
(ARMS)
I²T at 500Vac*
(A² sec.)
Vac
030
FFH1451/40A
FU1451/40A
40
525
660
035
FFH1451/50A
FU1451/50A
50
1260
660
040
FFH1451/50A
FU1451/50A
50
1260
660
*
I2T are multiplied for K value in function of Vac at 500V K is
equal to 0,7 (750 X 0,7 = 525 1800 X 0,7 =1250).
At 660Vsc K is equal to 1.
1.4
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
200 300 400 500 600 700
V
AC
K
Caution:
High speed fuses are used only for the thyristor protection and can not be used to
protect the installation.
Caution:
The warranty of thyristor is null if no proper fuses are used. See table.
7
Summary of Contents for Revo C 1Ph 30A
Page 2: ......
