SMA AUTOMATIC SWITCH BOX M - Manual (Page 31)

SMA Solar Technology AG Electrical Connection
Installation Guide AS-BoxM-IEN091711 31
5.8 Connecting a Generator (Optional)
Cable Requirements
The cable type and laying method must be suitable for the application and use location.
NOTICE!
Destruction of the cables through faulty cable design.
• Select the required cable cross-section according to the nominal power of the
generator.
• The design of the output fuse of the generator may affect the design of the cable to
the PV system.
• If the generator does not have an output fuse, implement the cable connection to the
Automatic Switch Box in a ground-fault proof and short-circuit proof manner. As an
alternative - especially for long cable distances - you can install an additional fuse
box close to the generator.
• Install fuses and protect the cable to the generator against short-circuit currents from
the grid and against overload.
Cable end sleeves
When using fine-wired cables, use cable end sleeves as well.
This only applies for the cable connected to the "F6 Generator" fuse element.
Cable cross section