REVEX
2PH from 120A to 210A
User’s manual
57
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 tab.
Warning:
When it is supply, the Thyristor unit is subject to dangerous voltage, don’t open
the Fuse-holder module and don’t touch the electric equipments.
Internal Fuse
The thyristor unit have internal fuse extrarapid at low I²t for the thyristor protection of against the short-circuits.
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 Code
Current
(A
RMS
)
Vac
Fuse I
2
t value
Suggested A2s
(at 500V)*
Fuse I
2
t value
Suggested A2s
(at 660V)
Quantity for
each phase
120
FU2055920.180
180
660
14280
20400
1
150
FU2055920.200
200
660
17500
25000
1
180
FU2055920.250
250
660
30800
44000
1
210
FU2055920.315
315
660
53900
77000
1
*
I
2
t are multiplied for K value in function of Vac at
500V K is equal to 0,7 (ex:20400 X 0,7 = 14280).
At 660Vsc K is equal to 1.
17
1.2
1.0
0.8
0.6
0.4
0.2
200 400 600 800
0.7
500
Vac
K
(Line voltage)
