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CS2 R30252.xx
from 75A to 200A
12
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.
Size
75A (S09)
125A (S09)
150A (S09)
200A (S10)
1.2
1.0
K
0.8
0.7
0.6
0.4
0.2
200
400
(Line voltage)
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.
Fuse CODE
FU120FEE
FU200FEE
FUURE250
FUURE315
500
600
800
Vac
200 kARMS Symmetrical A.I.C.
Current
(ARMS)
120
200
250
315
* I
T are multiplied for K value in function of Vac at 500V
2
K is equal to 0,7 (600V) (ex: 3100 X 0,7 = 2170).
At 660Vac K is equal to 1.
28
User's manual
FUSE I2T value
Vac
Suggested A2s
(at660V)*
660
3100
660
11400
660
52000
660
82000
Qty
2
2
2
2
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