Shenzhen Hpmont Technology Co., Ltd
Chapter 1 Safety Information and Precautions
HD20 Series Inverters User Manual
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In the altitude exceeded 1000 meters area, since the heatsink efficiency will be reduced because
of the tenuous air, the inverter should be derating. Figure 1-1 is the derating curve of the inverter
rated current and the altitude.
Figure 1-1 Derating curve of inverter rated current and altitude
80%
100%
Inverter’s rated current
Altitude(m)
1000
4000
1