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Rockwell Automation Publication 20Y-TG001C-EN-P - April 2017
Chapter 5
AC Line Switchgear Component Section
AFE in IP20 2500 MCC Style
Enclosure
For a PowerFlex AFE system in the IP20 2500 MCC Style enclosure, the AC
line switchgear components are the input circuit breaker (Q0), AC input fuses
(F1.1…F1.3), and input contactor (K1).
The input circuit breaker either connects or disconnects the AFE system to the
AC line. The input contactor connects the internal AFE system AC line to the
AFE power structure through the LCL filter. The AFE power structure
contains the control logic that opens or closes the input contactor.
See the PowerFlex Active Front End User Manual, publication
for the AC input fusing and circuit breaker protection recommendations.
AFE in IP21 Rittal Enclosure
For a PowerFlex AFE system in the IP21 Rittal enclosure, the AC line
switchgear components are the input disconnect (Q0) and MCCB (Q1).
The input disconnect either connects or disconnects the AFE system to the
AC line. The MCCB connects the internal AFE system AC line to the AFE
power structure through the LCL filter. The AFE power structure contains the
control logic that enables or disables the resettable trip mechanism that is
integrated into the MCCB. The trip mechanism controls the MCCB
functionality.
See the PowerFlex Active Front End User Manual, publication
for the AC input fusing and MCCB protection recommendations.
