Delta Compact Drive MS300 IP66/NEMA 4X Series User Manual page 118

Chapter 9 Specification  MS300 (IP66 / NEMA 4X)
For IP66 / NEMA 4X / UL Type 4X
Ambient temperature
Operating
altitude
above sea level
(m)
Operating
Conditions
IP66 / NEMA 4X /
UL Type 4X
High Altitude
Current derating at ambient temperature
0 1000
–
1001 1500
–
1501- 2000
–
When the AC motor drive is operating at the rated current, the ambient
temperature must be between -20
40 °C, for every increase by 1 °C, decrease the rated current 2.5 %. The
maximum allowable temperature is 50 °C.
If the AC motor drive is installed at an altitude of 0–1000 m, follow normal
operation restrictions. If it is installed at an altitude of 1000–2000 m,
decrease the rated current by 1 % or lower the temperature 0.5 °C for every
100 m increase in altitude. The maximum altitude for corner grounded is
2000 m. Contact Delta for more information if you need to use this motor
drive at an altitude of 2000 m or higher.
40 C 45
o
100 %
100 %
100 % 95 %
Ambient Temperature Limits
40 °C. When the temperature is over
–
9-8
C 50 C
o o
95 %
90 %