SMA SMC 4600A Installation - Manual (Page 22)

Electrical Connection SMA Solar Technology AG
22 SMC46-60A11-IA-en-81 Installation Manual
5.2 Connection to the Electricity Grid (AC)
5.2.1 Conditions for the AC Connection
Cable Dimensioning
Use Sunny Design Version 2.0 or higher for sizing the conductor cross-sections (see design software
"Sunny Design" at www.SMA-Solar.com).
Cable Requirements
F Terminals for the SMA Power Balancer
G Flat male tab for earthing the cable shield when connecting the SMA Power Balancer
H Additional terminal for earthing
I Terminals for AC cables
K Cable glands for the SMA Power Balancer
L Cable gland for the AC cable
M Cable glands for communication
N Screw fixture of shield connection terminal for data cable
O DC connector
P Connection socket for the Electronic Solar Switch (ESS)
Q Varistors
Connection requirements of the network operator
Always observe the connection requirements of your network operator.
Halving the cable losses
If three inverters with symmetrical feed-in are combined to form a three-phase system, the
neutral conductor is not subject to any load and the cable losses are halved. Thus, the
maximum possible cable length is doubled.
Item Description Value
A External diameter 12 mm … 25 mm
B Conductor cross-section 6 mm² … 16 mm²
C Stripping length approx. 16 mm
Object Description