SMA WB 5000A-11 Installation - Manual (Page 24)

Electrical Connection SMA Solar Technology AG
24 WB5A_6A-IA-IEN114540 Installation Manual
5.2 Connection to the Power Distribution Grid (AC)
5.2.1 Conditions for AC Connection
Cable Design
The maximum cable lengths relative to the cable cross-section are shown in the following table.
Cable Requirements
Connection requirements of the grid operator
Always observe the connection requirements of your grid operator.
Cable cross-section Maximum cable length
WB 5000A/WB 5000A-11 WB 6000A/WB 6000A-11
6 mm² 18 m 15 m
10 mm² 31 m 25 m
16 mm² 49 m 41 m
Reducing line losses by half
If three inverters with symmetrical feed-in are combined to form a three-phase system, the
neutral conductor is not subjected to any load, and the line losses are halved. This
reduction of line losses by 50% increases the maximum cable length by 100%.
Object Description Value
A External diameter 12 mm ... 25 mm
B Cable cross-section 6 mm² ... 16 mm²
C Stripping length approx. 16 mm