7
System
voltage
72 cell
Voc
＜
46V
96 cell
Voc
＜
62V
Thin-Film
Module Voc
＞
80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
3
2
2
1
1
NOTE
: The above parameter values are calculated under standard test conditions (STC (Standard
Test Condition)
：
Irradiance 1000W/m
2
，
Module Temperature 25
℃
，
Air Mass1.5.)
XTRA3415/4415N:
System
voltage
36 cell
Voc
＜
23V
48 cell
Voc
＜
31V
54 cell
Voc
＜
34V
60 cell
Voc
＜
38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
4
2
2
1
2
1
2
1
24V
6
3
4
2
4
2
3
2
48V
6
5
4
3
4
3
3
3
System
voltage
72 cell
Voc
＜
46V
96 cell
Voc
＜
62V
Thin-Film
Module Voc
＞
80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
3
2
2
1
1
48V
3
2
2
2
1
NOTE
: The above parameter values are calculated under standard test conditions (STC (Standard
Test Condition)
：
Irradiance 1000W/m
2
，
Module Temperature 25
℃
，
Air Mass1.5.)
(2) Maximum PV array power
The MPPT controller has the function of charging current/power-limiting, that is, during the charging
process, when the charging current or power exceeds the rated charging current or power, the
controller will automatically limit the charging current or power to the rated range, which can
effectively protect the charging parts of controller, and prevent damages to the controller due to the
connection of some over-specification PV modules. The actual operation of PV array is as follows:
Condition 1:
Actual charging power of PV array ≤ Rated charging power of controller
Condition 2:
Actual charging current of PV array ≤ Rated charging current of controller
