CD Automation REVO CL 1PH User Manual page 46

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22 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.
Fuse Code
Type
Spare Part
035 FU1451/50A
040 FU1451/50A
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.
22.1 Fuses Replacement
Open the Fuse-Holder
CD-Eng-REVO-CL-1PH-35-40A-Thyristors-Units
REVO CL
Current
500Vac
(ARMS)
(A² sec.)
50
50
* I T are multiplied for K value in function of Vac at 500V K is equal
2
to 0,7 (1800 X 0,7 =1260).
At 660Vsc K is equal to 1.
46
I²T at
Vac
*
1260 660
1260 660
Pull out the fuse
User's Manual
Max Power
Lost (W)
9
9