SMA 600-US - Manual (Page 46)

9 Troubleshooting SMA America, LLC
46 CU600-1000US-IA-en-10 Installation Manual
5. Remove blown or defective string fuses from the
fuse holders.
6. Insert one new string fuse into each fuse holder.
7. Close all safety levers all the way.
☑ The safety levers audibly click into place.
8. Mounting the lid of the Connection Unit:
• Position the lid in such a way that the protruding
shaft in the Connection Unit snaps into the
provided opening of the DC
switch-disconnector.
• Tighten all screws of the lid with an Allen Key
(AF 4) (torque: 35 in-lb. (4 Nm)).
9. Commission the Connection Unit (see Section 7.2).