Rockwell Automation Allen-Bradley PowerFlex 520 Series, User Manual, Page: 18 / 272

18 Rockwell Automation Publication 520-UM001K-EN-E - August 2021
Chapter 1 Installation/Wiring
Derating Guidelines for High Altitude
The drive can be used without derating at a maximum altitude of
1000 m (3300 ft). If the drive is used above 1000 m (3300 ft):
• Derate the maximum ambient temperature by 5 °C (9 °F for every
additional 1000 m (3300 ft), subject to limits listed in the
Altitude Limit
(Based on Voltage) table below.
Or
• Derate the output current by 10% for every additional 1000 m (3300 ft),
up to 3000 m (9900 ft), subject to limits listed in the
Altitude Limit (Based
on Voltage) table below.
High Altitude
Debris Protection
Take precautions to prevent debris from falling through the vents of the drive
housing during installation.
Storage
• Store within an ambient temperature range of -40...85 °C
(1)
.
• Store within a relative humidity range of 0...95%, noncondensing.
• Do not expose to a corrosive atmosphere.
(1) The maximum ambient temperature for storing a Frame E drive is 70 °C.
Altitude Limit (Based on Voltage)
Drive Rating Center Ground (Wye Neutral)
Corner Ground, Impedance Ground,
or Ungrounded
100...120V 1-Phase 6000 m 6000 m
200...240V 1-Phase 2000 m 2000 m
200...240V 3-Phase 6000 m 2000 m
380...480V 3-Phase 4000 m 2000 m
525...600V 3-Phase 2000 m 2000 m
Altitude (m)
Percentage of Rated Current (%)
40
90
100
110
120
80
70
60
50
0 4000 3000 2000 1000
Altitude (m)
Ambient Temperature (°C)
20
50
60
40
30
0 4000 3000 2000 1000