
22
Inverter Derating
Installation altitude
Power supply reduction (derating):
5%/1000 m a.s.l.; hmax = 4000 m
Installation altitude in metres above sea level
Max. cooling temperature
3.3°C/1000 m above 1000 m a.s.l.
Cooling temperature
1000 2000 3000 4000
45
55
Output current %
1000 2000 3000 4000
20
40
60
85
100
Mains voltage
Output current %
Feeding voltage
0 400 420 480
20
40
63
83
100
440 460 V
Cooling temperature
Output current %
Cooling temperature in °C
0 10 20 55
20
40
63
80
100
30 40 50
Derating in relation to
installation temperature
2.5%/K above 40°C;
Tmax = 55°C
Derating in relation to
power feeding voltage
0.22%/V beyond 400V;
Vmax = 480V
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