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 4KVA and 50A for 5KVA.
CAUTION!!
There are two terminal blocks with "IN" and "OUT" markings. Please do
NOT-misconnect input and output connectors.
WARNING!
All wiring must be performed by a qualified person.
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
4KVA
10AWG
1.4~1.6Nm
5KVA
8AWG
1.4~1.6Nm
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 3mm.
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.
WARNING:
Be sure to that AC power source is disconnected before attempting to hardwire it to the unit.
4. Then, insert AC output wires according to polarities indicated on terminal block and tighten
terminal screws.
Be sure to connect PE protective conductor (
)first.
Ground (yellow-green)
L
LINE (brown or black)
N
Neutral (blue)
Ground (yellow-green)
L LINE (brown or black)
N
Neutral (blue)
