SMA SB 700 - Manual (Page 15)

SMA Technologie AG Installation requirements
Installation Guide SB700-11:SA2006 Page 15
4.2 PV generator requirements
The Sunny Boy 700 is designed to be connected to up to two strings (PV modules
wired in series) having a homogenous structure (modules of the same type, identical
orientation, tilt and number).
The „Sunny Design“ tool will help to dimension and check the size of your string with
respect to the inverter you intend to use. Information about the „Sunny Design“ tool
is available at www.SMA.de.
The unit has four DC plug connectors (two for each string) for connecting the PV
generators. The connecting cables from the PV generators must also be fitted with this
type of plug connector. A pre-assembled set for connecting the free cable ends from
a string is available as an optional accessory. The SMA order codes for the various
connectors are as follows:
• Multi-contact 3 mm: "SWR-MC"
• Multi-contact 4 mm: "MC-SET"
• Tyco:
"TYCO-SET"
4.3 Low voltage grid 230 V (AC)
The Sunny Boy must have a three-conductor connection to the mains (live (L), neutral
(N), protective earth (PE)).
The grid connection terminals on the AC connection
socket included in the accessories kit can take wires
with a cross-section of up to 2.5 mm². The accessories
kit also contains a PG13.5 AC connection socket for
connecting cables with a diameter between 9 mm and
13.5 mm, while the PG16 connection socket is used for
cables with a diameter up to a maximum of 17 mm. For detailed instructions, see
sections "Connecting the AC output with PG13.5" (page 22) and "Connecting the
AC plug with PG16" (page 24).
Limit values for DC input
Max. voltage 250 V (DC)
Max. input current 10 A (DC)
o max. 2,5 mm² 11 ... 25 mm
Wire
cross-section diameter
Cable