Figure 3.7
WARNING:
Shock Hazard
Installation must be performed with care due to high battery voltage
in series.
CAUTION!!
Do not place anything between the flat part of the inverter
terminal and the ring terminal. Otherwise, overheating may occur.
CAUTION!!
Do not apply anti-oxidant substance on the terminals
before terminals are connected tightly.
CAUTION!!
Before making the final DC connection or closing DC
breaker/disconnector, be sure positive (+) must be connected to
positive (+) and negative (-) must be connected to negative (-).
3.3.3 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 32A for 3KVA and 50A for 5KVA.
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
:
SPF3000
1*10AWG
1.4-1.6Nm
SPF5000
1*8AWG
1.4-1.6Nm
Table 3.2
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.
→
Ground (yellow-green)
L
→
LINE (brown)
N Neutral (blue)
→
Figure 3.8
WARNING:
Be sure 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
blockand tighten terminal screws. Be sure to connect PE protective conductor (
)
first.
→
Ground (yellow-green)
L
→
LINE (brown)
N Neutral (blue)
→
Figure 3.9
5.Make sure the wires are securely connected.
CAUTION:
Be sure to connect AC wires with correct polarity. If L and N wires are
connected reversely, it may cause utility short-circuited when these inverters are
worked in parallel operation.
9
10
Model
Wire size
Torque value
SPF3000 PLUS
1.4-1.6Nm
1*10AWG
