SMA SUNNY BOY STORAGE 3.8-US Instructions D'installation page 34

6 Electrical Connection
Position Designation
K Jacks for the connection of an energy meter
L Network ports A and B for connecting a router or network switch
M
USB port for connecting a USB flash drive (for service purposes)
N Equipment grounding terminal for the equipment grounding conductor of the
utility grid, the outlet for secure power supply operation and, if necessary, an
additional grounding or for the equipotential bonding
O Shield clamps for the connection of the cable shields of the RS485 communi-
cation cables
P Shield clamps for the connection of the cable shields of the battery communi-
cation cables
Q Equipment grounding terminal for equipment grounding conductors of the bat-
tery/batteries
R
MFR slot for connection to the multifunction relay
S
Jacks BAT1 to BAT4 for the connection of the battery communication cable
and the communication cable of the automatic transfer switch
T Jack DISPLAY for the LED assembly connection in the enclosure lid of the
Connection Unit
U Fuses for DC connection
6.2 AC Connection
6.2.1 Requirements for the AC Connection
Additionally required material (not included in the scope of delivery):
☐ Conduits (trade size: 21 mm (0.75 in) or smaller with suitable reducer bushing)
☐ UL-listed raintight or liquidtight conduit fittings (trade size: 21 mm (0.75 in) or smaller with
suitable reducer bushing)
Requirements on the AC conductors:
☐ The conductors with regards to its ampacity, rated temperatures, operating conditions and its
power loss must be made in accordance with the local standards and the National Electrical
®
Code ANSI/NFPA 70 or the Canadian Electrical Code
☐ Conductor type: copper wire
☐ Permissible temperature: at least 75°C (+167°F) or 90°C (194°F)
☐ The conductors must be made of solid wire, stranded wire or fine stranded wire. When using
fine stranded wire, bootlace ferrules must be used.
☐ Conductor cross-section: 4 mm² to 16 mm² (12 AWG to 6 AWG)
34 SBSxx-US-10-IA-xx-14
SMA Solar Technology AG
®
CSA C22.1.
Installation Manual