33of 70Instruction handbook Mains filters BFNDocument No.: 5.09010.034D ESCRIPTION OF THE DEVICESIn this chapter the basic structure of the devices Filter for mains applications BFN andof the type codes on the devices.No filters are required for the operation of the power converter.TN-TT-systemssee ZSystemtypes– on page 15In order to comply with the limit values of the EMC-standards, the use of Baumüller mainsfilters BFN-3-1-XXX-X01 is required.In order to allow the compliance with the limit values for the conducted interferences („ex-ternal“ second environment - EN 61800-3, table 9) in low-impedance grounded low-volt-age systems use Baumüller mains filters combined with Baumüller converters, Baumüllermotor cables and Baumüller motors. If all installation- and EMC-notes of this Handbookare complied with, it is assumed that the interference-suppressed drive accords to theprotection requirements of the EMC-Directive 89/336/EWG and of the EMC-act (EMVG).NOTICE!m The mains filters may not be used as a motor filter at the converter output.m Mains filters BFN-3-1-XXX-XXX may not be used with active mains inverters. Forthis converter type special filters are available, refer to ZFilters for active mains in-verter– from page 22.NOTICE!Baumüller mains filters BFN-3-1-XXX-X01 can be used inm Grounded industrial systems of hard or low impedancethey can not be used inm Grounded industrial systems of insulated and high impedance.m Grounded wye-supply systemsm Grounded industrial systems of hard- or low impedance