8
AC Input/Output Connection
CAUTION!!
Before connecting to AC input power source, please install a
separate
AC breaker
between inverter and AC input power source. This will ensure the inverter can be securely
disconnected during maintenance and fully protected from over current of AC input. The recommended
spec of AC breaker is 40A for 4KW~6KW, 80A for 8KW~12KW.
CAUTION!!
There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect
input and output connectors.
WARNING!
All wiring must be performed by a qualified personnel.
WARNING!
It‟s 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 size as below.
Suggested cable requirement for AC wires
Model
Gauge
Torque Value
4KW/5KW
10 AWG
1.4~ 1.6 Nm
6KW/8KW
8 AWG
1.4~ 1.6 Nm
10KW/12KW
6 AWG
1.6~ 1.8 Nm
AC Wiring
Single phase with 240V output
Input: HOT1+ HOT2+
Ground
Output: HOT1+ HOT2
Single phase with 120V output
Input: HOT1+ HOT2+
Ground
Output:
HOT1+ N or HOT2+ N
Please follow below steps to implement AC input/output connection:
1.
Before making AC input/output connection, be sure to open DC protector or disconnector first.
2.
Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor N 3 mm.
3.
Insert AC input wires according to polarities indicated on terminal block and tighten the terminal
screws. Be sure to connect PE protective conductor
first.
