SMA America, LLC
Safety Instructions
Technical Description
SI5048U-TUS121440
27
3 Safety Instructions
3.1 Important Notes regarding Operation
Follow all operating and safety instructions in this manual. If these instructions are ignored, a
significant danger of injury or death arises and damage to the device, system or plant may also result.
Carefully read the safety instructions before installing and commissioning the device. Store the manual
at an easily accessible location.
DANGER
Danger to life due to high voltages in the Sunny Island. Risk of death or serious injury due
to electric shock.
• All work on the Sunny Island must only be carried out by qualified personnel.
• Work on the Sunny Island should only be carried out as described in this manual.
• All listed safety instructions must be followed.
NOTICE!
Destruction of the Sunny Island due to parallel connection of Sunny Island inverters which
are set to different grid voltages.
• Always employ Sunny Island inverters of the same type within a system.
• Do not connect Sunny Island inverters in parallel with grid voltages set to different
values.
NOTICE!
Batteries may be destroyed due to deep discharge.
The self‑consumption of the Sunny Island discharges the battery. In standby mode, this load
is about 4 W and about 25 W in idle mode.
• If you install the Sunny Island and do not wish to use it immediately,
switch the Sunny Island off (see section
9.3 ”Switching off” (page 74)
).
• If you want to decommission the Sunny Island for a long period,
switch the Sunny Island off (see section
9.3 ”Switching off” (page 74)
).
Connection Requirements
Be sure to observe all valid regional standards and guidelines.
