Technical data 95
Derating
Temperature derating
The nominal power (100%) of the inverter is reached in +50 °C. In lower temperatures, the
inverter can supply up to 110% power. If the ambient temperature exceeds the nominal
ambient temperature, the load capacity (current and power) of the inverter decreases.
Use the following correction factors when you calculate the available inverter power at
different temperatures (at elevations <1000 m above sea level):
• -20 °C to 35 °C (-4 °F...95 °F), the power vs temperature ratio is 0 S(%) per 1 °C.
• 35 °C to 50 °C (95 °F...122 °F), the power to temperature ratio is -2/3 S(%) per 1 °C.
• 50 °C to 55 °C (122 °F...131 °F), the power to temperature ratio is -4 S(%) per 1 °C.
• 55 °C to 60 °C (131 °F...140 °F), the power to temperature ratio is -16 S(%) per 1 °C.
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