T
（L3）
PE
S
（L2）
R
（L1）
N
- 12 -
3.4 Grid connection and backup load connection
1. Before making Grid, load and Gen port connection, be sure to turn off AC baeaker or
disconnector first.
2. Remove insulation sleeve 10mm length, unscrew the bolts, insert the wires according to
polarities indicated on the terminal block and tighten the terminal screws. Make sure the
connection is complete.
Please follow below steps to implement Grid, load and Gen port connection:
Chart 3-3 Recommended Size for AC wires
· Before connecting to grid, please install a separate AC breaker between inverter and grid. Also,
it is recommended that installs an AC breaker between backup load and inverter.This will ensure
the inverter can be securely disconnected during maintenance and fully protected from over
current.The recommended of AC breaker for the load port is 20A for 8kw, 32A for 10kw and
32A for 12KW
.
The recommended of AC breaker for the grid port is 63A for 8kw, 63A for 10kw
and 63A for 12KW.
All wiring must be performed by a qualified personnel.It is very important for
system safety and efficient operation to use appropriate cable for AC input
connection. To reduce risk of injury, please use the proper recommended cable
as below.
Model
5/6/8/10/12KW
Wire Size
10AWG
Cable(mm )
2
4
Torque value(max)
1.2Nm
Model
5/6/8/10/12KW
Wire Size
10AWG
Cable(mm )
2
6
Torque value(max)
1.2Nm
T
（L3）
PE
S
（L2）
R
（L1）
N
GRID
T
（L3）
PE
S
（L2）
R
（L1）
N
GEN PORT
LOAD
Grid connection
backup load connection
· There are three terminal blocks with "Grid" "Load"and "GEN" markings. Please do not misconnect
input and output connectors.
GRID
LOAD GEN PORT
