12
8.
Battery Connection
CAUTION: Before connecting to batteries, please install separately a DC circuit
breaker between inverter and batteries.
NOTE1: Please only use sealed lead acid battery, vented and Gel battery. Please check
maximum charging voltage and current when first using this inverter. If using Lithium
iron or Nicd battery, please consult with installer for the details.
NOTE2: Please use 60VDC/200A circuit breaker.
NOTE3: The overvoltage category of the battery input is II.
Please follow below steps to implement battery connection:
Step 1: Check the nominal voltage of batteries. The nominal input voltage for inverter is
48VDC.
Step 2: Use two battery cables. Remove insulation sleeve
10 mm and insert conductor into cable ring terminal.
Refer to right chart.
The cable size of each inverter is shown as below:
Recommended battery cable and terminal size for each inverter:
Model Wire Size
Ring Terminal
Torque value
Cable mm2
Dimensions
D (mm) L (mm)
LV 6KW
3/0
85
8.4
54.2
7~12 Nm
WARNING: Be sure the length of all battery cables is the same. Otherwise, there will
be voltage difference between inverter and battery to cause parallel inverters not
working.
Step 3:
Insert battery wires according to polarities indicated on the terminal block and
tighten the terminal screws. Make sure polarity at both the battery and the inverter/charge
is correctly connected.
RED cable to the positive terminal (+);
BLACK cable to the negative terminal (-).
