Rockwell Automation Publication 750-RM003A-EN-P - April 2018 33
Selection Considerations Chapter 1
If the optional 240V AC control transformer control option code (-C1) is
specified, the PowerFlex 755TM bus supply is factory-equipped with a 240V
AC control transformer rated (as shown in Ta ble 7
). Note the additional
available 240V AC current that can be used to supply 240V AC control power
to common bus inverters that are powered by the bus supply.
Specification and Feature
Comparison
Table 8 through Table 15 compare the ratings, specifications, certifications,
and features between the bus supplies. In the following tables, (s) means
included as standard and (o) means available as an option.
Table 7 - Optional Control Transformer Ratings
Bus Supply
Frame
Optional Control Transformer (Control
Opt Code –C1)
(VA)
Additional Available With Optional (-C1)
Control Transformer
(A rms)
IP21 Enclosure IP54 Enclosure IP21 Enclosure IP54 Enclosure
8 3000 4000 1.6 2.9
9 5000 8000 5.4 11.4
10 8000 12,000 9.2 16.6
11 10,000 15,000 13.0 21.7
12 12,000 20,000 14.0 30.6
Table 8 - Input Power and Features
Description PowerFlex 700AFE Bus Supply PowerFlex 755TM Bus Supply
Cat No. 20Y… Cat. No. 20J…
Voltage Class 400/480V AC
600/690V AC
400V AC
480V AC
600V AC
690V AC
Input Phases 3 PH only 3 PH only
Voltage Tolerance, for rated
DC output power
+/- 10% of nominal See Voltage Tolerance derating in
publication 750-TD100
Input Frequency Range 48…63 Hz 47…63 Hz
Displacement Power Factor 1.0 default, adjustable 0.98 default, adjustable
Power Factor Control (s) (s)
Efficiency at rated amps,
nominal AC line voltage
97.5% 97.0%
Maximum Short Circuit
Current Capacity, SCCR
(Actual short circuit current
rating may be further limited
by AIC rating of customer
supplied branch circuit
protection devices)
IP20 2500 MCC
• 100 kA, frame 10,400/480V AC
• 65 kA, frame 10, 600/690V AC
• 100 kA, frame 13, all voltage
IP21 Rittal
• Depends on AIC of external
branch circuit protective device
• 100 kA, 400…600V AC
• 65 kA, 690V AC
Input Filter LCL LCL
Transient Protection • Power, up to 6000V peak per
IEEE C62.41-1991
• Control Circuit, showering arc
transients up to 1500V peak
Up to 2000V line-to-line and 4000V
line-to-ground per IEC 61800-3
PWM Carrier Frequency 3.6 kHz 4.0 kHz