Rockwell Automation Publication 520-TD002A-EN-E - May 2015 17
PowerFlex 527 AC Drive Specifications
Current Derating Curves
Vertical Mounting
Horizontal Mounting/Floor
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 (41 °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), subject to limits listed in the Altitude Limit
(Based on Voltage) table below.
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
Single Drive Zero Stacking
Ambient Temperature (°C)
40
100
90
110
120
80
70
60
50
45403530
60 65 70 75 80
5550
Percentage of Rated Current (%)
with Control
Module Fan Kit
IP 20/Open Type
Ambient Temperature (°C)
40
100
90
110
120
80
70
60
50
45403530
60 65 70 75 80
5550
Percentage of Rated Current (%)
IP 30/NEMA 1
with Control
Module Fan Kit
IP 20/Open Type
Single Drive Zero Stacking
Ambient Temperature (°C)
40
100
90
120
110
80
70
60
50
30 35
70 75 80
60 6550 5540 45
Percentage of Rated Current (%)
with Control
Module Fan Kit
IP 20/Open Type
Ambient Temperature (°C)
40
100
90
120
110
80
70
60
50
30 35
70 75 80
60 6550 5540 45
Percentage of Rated Current (%)
with Control
Module Fan Kit
IP 20/Open Type