88
Note 3: When the altitude is higher than 6562ft (2000m), the operating
temperature of the inverter needs derating, as shown in Figure 8-3:
Tamb
(2000m) (4000m)
(60
℃
)
(45
℃
)
Altitude
140
℉
113
℉
6562ft 13123ft
Figure 8-3 SCA23/28KTL derating curve with high altitude
Note 4: The inverter can output the AC power with full loads under 90%~110%
of the rated grid voltage. When the grid voltage is lower than 90%, the output
current will be limited within the allowable Max. current.
20%
40%
60%
80%
100%
Po/Pn
0.9*Un 1.1*Un
Figure 8-4 SCA23/28KTL derating curve of grid voltage
