Internal Fuse; Fuses Replacement - CD Automation Revo M Series User Manual

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9 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
030 FU1451/40A
035 FU1451/50A
040 FU1451/50A
045 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.

9.1 Fuses Replacement

Open the Fuse-Holder
REVO_M08
REVO M
Current
Vac
(ARMS)
40 980
50 1800
50 1800
50 1800
The I²t on the table is related to 660 Vac, for real
value see this correction factor graphic.
13
User's Manual
I²T Max Power
(A² sec.) Lost (W)
660
660
660
660
Pull out the fuse
9
9
9
9