Chapter 9 Specification C2000
9-12
9-7 Derating Curve of Ambient Temperature
Protection Level
Operating Environment
UL Type I / IP20
230V / 460V: When the AC motor drive operates at the rated current, and the
ambient temperature has to be between -10 ~ +40°C. When the
temperature is over 40°C, the rated current decreases 2% for every
increase by 1°C. The maximum allowable temperature is 60°C.
575V / 690V: When the AC motor drive operates at the rated current, and the
ambient temperature has to be between -10 ~ +40°C. When the
temperature is over 40°C, the rated current decreases 2.5% for every
increase by 1°C. The maximum allowable temperature is 60°C.
UL Open Type / IP20
230V / 460V: When the AC motor drive operates at the rated current, and the
ambient temperature has to be between -10 ~ +50°C. When the
temperature is over 50°C, the rated current decreases 2% for every
increase by 1°C. The maximum allowable temperature is 60°C.
575V / 690V: When the AC motor drive operates at the rated current, and the
ambient temperature has to be between -10 ~ +50°C. When the
temperature is over 50°C, the rated current decreases 2.5% for every
increase by 1°C. The maximum allowable temperature is 60°C.
High Altitude
If AC motor drive is installed at altitude 0~1000m, follow normal operation
restriction. If it is install at altitude 1000~2000m, decrease 1% of rated current or
lower 0.5°C of temperature for every 100m increase in altitude. Maximum altitude
for Corner Grounded is 2000m. Contact Delta for more information, if you need to
use this motor drive at an altitude of 2000m or higher.
Table 9-10
Ambient temperature derating curve
230V / 460V Normal control ambient temperature derating curve
Figure 9-2
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