Internal Fuse - CD Automation Revo Revex 2PH Series User Manual

REVEX
2PH from 60A to 90A
15

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 Spare
Type
50 073 06.100 or
060
6,9 URB 17/100 (UL)
50 073 06.100 or
090
6,9 URB 17/100 (UL)
1.2
1.0
K
0.8
0.7
0.6
0.4
0.2
200
(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.
Current
Part (ARMS)
160
160
500
400 600 800
Vac
FUSE I2T value
Vac Suggested A2s
(at500V)*
690 4305
690 4305
*I2T are multiplied for K value in function of Vac at
500V K is equal to 0,7 (ex:6150 X 0,7 = 4305).
At 690Vac K is equal to 1.
Fuses replacement:
Open the cover and remove the screws, then replace
it with the correct fuse, use the screws with a proper
suggested torque indicated below.
Type
60A-90A
54
User's manual
FUSE I2T value
Suggested A2s
(at690V)
6150
6150
Screw Torque Lb-in
(N-m)
M6 44.2 (5.0)
Qty
2
2