SMA DC Disconnect Switch For SB 3300-U - Manual (Page 25)

SMA America, Inc. Replacing the Fuses
Installation Guide DC-Discon-U-11:SE4406 19
5 Replacing the Fuses
The DC Disconnect is equipped with internal DC fuses to protect against damage in the
event of a fault. These fuses may easily be replaced by a qualified technician if needed.
Any work within the DC Disconnect must be performed by a qualified
technician.
Make sure that there are no DC or AC voltages present before
removing the cover of the DC Disconnect.
Warning: PV arrays produce electrical energy when exposed to light
and thus create an electrical shock hazard.
Replace fuses only with fuses of the same type and rating.
1 Place the switch
in the OFF (0)
position. Using a
2.5 mm Allen
wrench, remove
the handle of the
switch.
Then, remove the
screw and
lockwasher and
remove the
cover.