User and installation manual

6 Electrical Connection
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 49
Procedure:
The wiring between the fuse holders A/B and DC terminal block must be changed: The conductors
between the fuse holders A/B and terminal block B must be removed.
The 25A fuses in the fuse holders A/B must replaced with 15A fuses.
One battery must be connected to the terminal blocks A/B and the other to the terminal blocks of
the fuse holders C.
 



 

 





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

 


 
 
   






Figure 13 : Overview for connection of two batteries with a charging/discharging current limit of 10A each
6.8.1.2 Connection of a battery with a charging/discharging current
limit of 10A
Usually, the DC terminal C is used for the connection of a battery with a charging/discharging
current limit of 10A. If the battery is connected to the fuse holders C, the black-start function will not
be available.
If you want to use the black-start function, the parallel connection of the DC terminals A and B must
be removed and the battery connected to the fuse holders A/B.
Additionally required material (not included in the scope of delivery):
☐ DC conductor for connection to fuse holders The requirements in terms of the DC conductors
used for connection to the fuse holders must be met (see Section6.8.2 "Requirements for the
DC Connection", page53).
Procedure:
The wiring between the fuse holders A/B and DC terminal block must be changed: The conductors
between the fuse holders A/B and terminal block B must be removed.
ENGLISH