34 Rockwell Automation Publication 750-RM003A-EN-P - April 2018
Chapter 1 Selection Considerations
Current Limit 20…150% of rated input current 20…160% of rated input current
AC input disconnect • IP20 2500 MCC; circuit breaker, 
high-speed AC line fuses, 
contactor
• IP21 Rittal; disconnect switch, 
motor control breaker. External 
user supplied AC line fuses are 
required.
Motor Operated Circuit Breaker with shunt 
trip, high-speed AC line fuses
DC Bus precharger (s) Contactor, rectifier and resistors (s) Contactor and resistors
Harmonic Compliance IEEE 519 IEEE 519
Control Power (s) Internal 240/120V AC, 1 PH,
50/60 Hz
(s) User supplied 240V AC, 1 PH, 50/60Hz, 
neutral grounded, +/-10% of nominal.
See Table 6 on page 31
.
(o) Internal 240V AC, 1 PH, 50/60 Hz, 
specify control option (–C1) when 
ordering.
See Table 6 on page 31
.
Auxiliary 24V DC Control 
Power
— (o) External 24V DC +/-5% of nominal;
• Frame 8, 182 W max
• Frame 9, 213 W max
• Frame 10, 245 W max
• Frame 11, 276 W max
• Frame 12, 308 W max
400V AC input, DC Bus 
Normal Duty Output Ratings
• 520…1469 A DC, ND
• 309…873 kW, ND
• Up to 4976 kW, ND, with 
6 x parallel units (IP21 Rittal 
enclosures only). Max practical 
power limited by DC bus bar 
ampacity. See publication 20Y-
UM001 for paralleling 
information.
• 324…3801 A DC, ND
• 188…2204 kW, ND
• Parallel operation, not applicable
Table 9 - Output Power and Features
Description PowerFlex 700AFE Bus Supply PowerFlex 755TM Bus Supply
Cat No. 20Y… Cat. No. 20J…
480V AC input, DC Bus 
Normal Duty Output Ratings
• 520…1469 A DC, ND
• 370…1046 kW, ND
• Up to 5962 kW, ND, with 
6 x parallel units (IP21 Rittal 
enclosures only). Max practical 
power limited by DC bus bar 
ampacity. See publication 20Y-
UM001 for paralleling 
information.
• 311…3501 A DC, ND
• 216…2436 kW, ND 
• Parallel operation, not applicable
600V AC input, DC Bus 
Normal Duty Output Ratings 
• 367…1164 A DC, ND
• 327…1036 kW, ND
•  Up to 5905 kW, ND, with 6 x 
parallel units (IP21 Rittal 
enclosures only). Max practical 
power limited by DC bus bar 
ampacity. See publication 20Y-
UM001 for paralleling 
information.
• 249…2489 A DC, ND
• 217…2164 kW, ND
• Parallel operation, not applicable
Table 8 - Input Power and Features  (Continued)
Description PowerFlex 700AFE Bus Supply PowerFlex 755TM Bus Supply
Cat No. 20Y… Cat. No. 20J…