SMA 600-US - Manual (Page 41)

SMA America, LLC 7 Commissioning
Installation Manual CU600-1000US-IA-en-10 41
4. Open all safety levers needed all the way.
5. Insert 1 string fuse into each fuse holder.
6. Close all safety levers all the way.
☑ The safety levers audibly click into place.
7. Mount 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)).
8. In order to protect the DC switch-disconnector against restarting, lead the shackle of the padlock
through the opening in the switch and lock it.
9. Commission the Connection Unit (see Section 7.2).