Sunny Island
Installation & Operating Instructions
BWRI33-12:EE
- 27 -
SMA Regelsysteme GmbH
We urgently recommend a fused interrupter to disconnect the Sunny
Island.
If there is no line protection (fuse) the installation of DC cables has
to be inherently ground-fault-proof and short-circuit-proof. The inter-
nal DC fuses of the Sunny Island are designed for interrupting cur-
rents of up to 20 kA (for
R
L
< 0,015 s ).
The relevant regulations for installation have to be followed.
Fused interrupter to
disconnect the Sunny Island
max. 25 mm
2
e.g.
80 A
Sunny Island
L -
L +
F1
Battery
input
e.g.
60 V/ 350 Ah
Fig. 3.5: Connection of battery to the Sunny Island
The nominal voltage of the battery to be connected is 60 V DC.
Never remove the battery cable during operation. Always switch the
inverter off first.