Delta VFD055ED43S

Chapter 8 Specifications | VFD-ED
8-5
8-5 Derating Curve
 To choose the right model for your applications, consider derating factors such as ambient
temperature, altitude, carrier frequency, and so on.
Ambient Temperature Derating Curve
Figure 8-1
The rated output current derating (%) for different ambient temperature:
Ambient Temp.(°C)
Model
30 35 40 45 50
2.2~4 kW 100 100 100 89 78
5.5~30 kW 100 100 100 87 75
37~75 kW 100 100 100 90 80
Table 8-5
70
75
80
85
90
95
100
105
30 35 40 45 50
Drive Output Current Rating
(%)
Ambient Temperature (°C)
Derating for Ambient Temperature
2.2~4 kW 5.5~30 kW 37~75 kW