Sunny Boy 2000
Technical Description
SB2000-11:EE
- 22 -
SMA Regelsysteme GmbH
3.3 Electric Connection
The electric connection of the Sunny Boy can be done once the device is correctly
mounted in its position.
The PV-modules are connected to the inverter with safe to touch snap cable connec-
tors accessible from outside.
On the other hand, the mains connection is located inside the string inverter. It is a
three-cable connection (L, N, PE) for cables with a cross section of up to 4 mm
2
. At
the bottom of the case there are two openings suitable for PG16 fastening clamps to
insert the cable.
The electric connection of the Sunny Boy and the connection to the
input and output cabling must be done in the order described here.
Following this order the installer will make sure not to open contacts
under load and exclude high voltages during the installation.
1. Connect
mains
2. Close inverter case
3. Connect PV-panels (remove seals from the cable ends and
plug in the cables to the inverter)
4. Switch on fuse of the phase
If at any time the inverter has to be dismantled please note that the
device must be disconnected in the opposite order. Always keep in
mind to wait for at least 30 minutes before opening the inverter after
disconnecting it.
The PV-panel may never be disconnected from the Sunny Boy (pull-
ing out the plug connectors) while under load, i.e. during the inverter
feeds to the grid. Always disconnect the mains before.
