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Sunny Island 4500
3.4.4 Connection to AC Voltage
On the power side the AC voltage is connected to the automatic circuit breaker F2. If
there is only one electric circuit this can be directly supplied by the Sunny Island. If
there are additional devices feeding the grid, such as wind generators, separate cir-
cuits and thus an external distribution is recommended.
AC-
F2
Outlet
Sunny Island
Direct consumer
Fig. 3.7 shows an exemplary layout of a sub-distribution if additional electric circuits
and grid-feeding devices are integrated into the system.
To allow different kinds of grounding concepts, the Sunny Island's N-
terminal is NOT connected to PE by default. Thus, any required con-
nection between N and PE has to be performed externally. Due to
EMI-measures, the voltage of the AC terminals will be round about
symmetrically to PE without any further wiring.
BWRI45-13-EE0304
N
L
or
Fig. 3.7: AC voltage connection
- 48 -
Installation & Operating Instructions
External distribution
6 A
6 A
L
N
G
SMA Regelsysteme GmbH
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