ABB ACS880-107 Hardware Manual page 129

6. Move the screws, nuts and washers from the blown fuse to the new fuse. Make sure to
keep the washers in the original order.
Note: A table of recommended fuses is shown on page 137.
7. Insert the new fuse block into its slot. Tighten both nuts of the fuse only until there is no
play between the fuse and the busbars.
8. Tighten the mounting screws of the top busbars to torque as shown.
Without DC switch
9. Tighten the fuse block nuts to torque as follows:
•
Cooper-Bussmann fuses: 50 N·m (37 lbf·ft)
•
Mersen (Ferraz Shawmut) fuses: 46 N·m (34 lbf·ft)
•
Other: Refer to the fuse manufacturer's instructions.
10. Reinstall the shroud removed earlier. Tighten the screws to 6 N·m (4.4 lbf·ft).
70 N·m (52 lbf·ft)
9 N·m (6.6 lbf·ft)
With DC switch (+F286)
Maintenance 129
70 N·m (52 lbf·ft)