ABB ACH550-01 User Manual page 451

ACH550-01 User's Manual
Note: It is not allowed to install a drive with the internal EMC
filter connected on IT (ungrounded) systems. The supply
network becomes connected to ground (earth) potential through
the EMC filter capacitors which may cause danger or damage
the drive.
Note: It is not allowed to install a drive with the internal EMC
filter connected to a corner-grounded TN system as this would
damage the drive.
446 Technical data
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