SMA America, LLC
Maintenance and cleaning
Installation Guide
SB20_25_30HFUS-eng-IUS113711
79
5. Insert new fuse into the fuse holder.
6. Close fuse holder.
7. Repeat the replacement of fuse for each string.
8. Close the SMA DC-Disconnect (see section 8.3 ”Closing the SMA DC-Disconnect” (page 67)).
9. Commission the Sunny Boy (see section 7 ”Commissioning” (page 63)).
☑ The string fuses have been replaced.
WARNING
For continued protection against risk of fire, replace only with the same type and ratings of
fuse.