SunSynk SYNK-8K-SG04LP3 - AC and Backup Load Connection

THREE PHASE HI 8~12kW | Installer Manual20
AC and Backup Load Connection
Before connecting to the main grid, please install a separate AC Breaker (MCB) between the inverter and the
grid. In addition, it is recommended the installation of an AC Breaker between the backup load and inverter.
This will ensure the inverter can be disconnected safely during maintenance and fully protect the system
from over-current. The recommended of AC breaker for the load port is 63A for 8kW, 63A for 10kW and 63A
for 12kW. The recommended of AC breaker for the grid port is 63A for 8kW, 63A for 10kW and 63A for 12kW.
There are three terminal blocks marked as GRID, LOAD, and GEN. Please do not confuse input and output
connections.
GEN/AUX
Generator connection.
GRID
This works like a conventional grid-tied inverter. It is both an input and output connec-
tion for non-essential load and supply.
LOAD
Connection of essential loads such as lighting, security systems, and internet.
Model Wire Size Cable (mm
2
) Torque Value (max.)
8/10/12kW 10 AWG 6 1.2N.m
Please follow the steps below to implement GRID, LOAD, and GEN port connections:
1. Before making GRID, LOAD, and GEN port connections, make sure to turn o the AC breaker or discon-
nector rst.
2. Remove a 10mm sleeve from each wire, unscrew the bolts, insert the cables according to the polarities
indicated on the terminal block and tighten the terminal screws. Ensure the connection is complete.
3. Then, insert AC output wires according to the polarities indicated on the terminal block and tighten the
terminal. Make sure to connect corresponding N wires and PE wires to related terminals as well.
4. Ensure the wires are securely connected.
5. Check that the AC power source is isolated before attempting to connect it to the inverter. Insert AC
output wires according to the polarities indicated on the terminal block and tighten the terminal screws.
Be sure to connect the corresponding N wires and PE wires to the correct terminals and ensure the
wires are securely connected.
WARNING
All wiring must be performed by qualied personnel. System safety and ecient operation need to
use appropriate cable for AC input connection. To reduce the risk of injury, please use the recom-
mended cable below.