Installation and Operation Manual
13
3. Select the inner diameter of 12AWG (4mm
2
) and the outer
diameter of Φ6mm of the photovoltaic cable as the connecting line
of the PV input terminal. Select the inner diameter of 12AWG
(4mm
2
) and the outer diameter of Φ13mm of the photovoltaic cable
as the connecting line of the AC output terminal. Cables should
avoid high temperature, flame and rain water whenever possible.
4. During connecting the inverter, make sure no connection among
AC, DC and any power resources. They also can not be connected
when any accident occurs.
5. Identify the polarity of wires and connection ports first, then
connect the inverter with solar arrays and municipal Electrical
Grid.
Only qualified cables under the local electrical safety laws
and regulations are allowed to connect.
Miniature circuit breakers
It is recommended strongly to install circuit breakers or fuses at the DC
input and AC output to ensure safe installation and running.
In order to protect the PCE, user and installer, external DC
and AC circuit breaker shall be equipped at the end-use
application;
The wiring shall be according local electric code. Choose
proper cable for power input and output lines. Input and
output cable shall be PV private cables suitable for outdoor
use.
Table: Miniature circuit breakers specifications
Model
DC input
AC output
Recommended DC
Recommended AC
KSG-3.2K-DM
800V/16A
25A
KSG-3.6K-DM
800V/16A
32A
KSG-4K-DM
800V/16A
32A
KSG-4.6K-DM
800V/16A
32A
