Baumuller BFN 3-1-0007-001 - Page 34

Instruction handbook Mains filters BFN
Document No.: 5.09010.03 Baumüller Nürnberg GmbH
34
of 70
IT-systems
ZSystem types– on
page 15
The use of mains filters in IT-systems is less effective and no EMC limits are defined.
„The use of EMC-filters in an insulated or a grounded industrial distribution system
of high impedance can cause a safety risk. No limit values can be defined at IT-systems,
which are used for complex industrial systems.“ (EN 61800-3, chapter 6.3.2.3, b).
NOTE!
An error case (motor ground connection) can lead to overload and perhaps destruc-
tion of the mains filters.
The use of mains filters BFN-3-1-XXX-X02 is possible, but it is not recommended to
apply mains filters in IT-systems. The transient emissions can exceed the limits of
category C3.