4. Installation
4. Installation
The Solis 6-10kW Single Phase inverters can be connected to a 208V or 240V grid.
The default setting is for a 240VAC single phase grid.
Ground must be connect to the PE terminal.
Damage to the DC disconnect due to enlarged knockouts.
Enlarged knockouts enable moisture to penetrate the DC disconnect which
could damage electronic components in the DC Disconnect.
Cable type
4~25mm
²
Cross section
Range
Industry generic
grid cable
Recommended
value
10-25mm
²
（
8-4AWG
）
（
12~4AWG
）
4.3.3 Connect Grid Side of Inverter
Please see figure 4.10. Both DC and AC ground cable can be connect to ground terminal
above DC switch. The acceptable wire size for ground is
12AWG to 4 AWG.
The torque
setting is 26 in-lbs (3 Nm) .
Figure 4.10 Grounding Terminal on Heat-Sink
4.3.4 Ground Connection
An external ground connection is provided at the right side of the inverter.
Prepare OT terminals: M4. Use proper tooling to crimp the lug to the terminal.
Connect the OT terminal with ground cable to the right side of the inverter.
The torque setting is 20 in-lbs (2Nm).
External ground connection point
Internal ground connection point
Table 4.2 Grid cable size
Figure4.11 Connect the
E
xternal
G
rounding
C
onductor
Table 4.3 Grid Terminal Connection
L1
L2
L3
L1
L2
N
208V~
3PH
-
△
-
3W
SPLIT
-
PHASE
240V~
L1
L2
N
L1
L2
N
Yes
Yes
No
Yes
Yes
Connection requiement
TERMINAL
G
R
ID
S
T
A
N
D
A
R
D
Cable type
4.0~6.0
Cross section
Range
Industry generic PV cable
（
model:PV1
-
F
）
Recommended
value
4.0
（
12AWG
）
（
12~10AWG
）
Table 4.1 DC cable size
There are two cable connection point for each phase, one for grid, one for AC power of RSD.
.17.
.16.
No
