6
Battery Connection
CAUTION:
For safe operation and regulation compliance, it is required to install a separate DC over-current
protector or disconnect device between battery and inverter. It may not be required to have a disconnect
device in some applications, however, you are required to have over-current protection installed. Please refer
to typical amperage in the below table for required fuse or breaker size.
WARNING!
All wiring must be performed by electrically trained personnel
WARNING!
It's critically important for system safety and efficient operation to
use appropriate cable sizes for battery connections. To reduce risk of injury,
please use the proper recommended cable and terminal sizes below.
Recommended battery cable and terminal size:
Model
Typical
Amperage
Minimum
Battery
Capacity
Wire Size
Ring Terminal
Torque Value
Min size
Dimensions
D (mm) L (mm)
6KW
137A
3
00AH
2AWG
2AWG/
38mm2
M10
13mm nut
39
~ (2-3 Nm)
Please follow below steps to implement battery connection:
1. Assemble battery ring terminal based on
recommended battery cable and terminal size.
2. Insert the ring terminal of battery cable flatly into
battery connector of inverter and make sure the nuts
are tightened with a torque of 17-27 in-lbs/ 2-3 Nm.
Make sure polarity at both the battery and the inverter/
charger is correctly connected and ring terminals are
tightly screwed to the battery terminals.
Ring terminal:
Mounting the Inverter
Install the unit using all three screw holes. Use #8 (M4) or #10 (M5) screws.
