17
Model
Rated charge current
Battery wire size
ET4415BND
45A
16mm
2
/6AWG
ET6415BND
60A
16mm
2
/5AWG
ET6420BND
60A
16mm
2
/5AWG
NOTE:
The wire size is only for reference. If there is a long distance between
the PV array and the controller or between the controller and the battery, larger
wires can be used to reduce the voltage drop and improve performance.
Battery Connection
Connecting a fuse in series through battery positive (+) in the circuit and the
battery circuit fuse must be 1.25 to 2 times to the rated current. Keep OFF
before connection. Connect battery positive (+) and negative (-) to battery
terminals on the controller in the figure 1-
1. Please pay much attention to ‗+‘
and ‗
-
‘
.
Figure 2-1 Wiring Diagram
