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In conjunction with Active Interface Modules and a logically consistent configuration of the plant or system, line filters limit the interference conducted by the power modules to the limit values of Category C2 acc. to EN 61800‑3. Line filters are only suitable for direct connection to TN line systems.

Note:

According to product standard EN 61800‑3, RFI suppression commensurate with the relevant rated conditions must be provided and is a legal requirement in the EU (EMC Directive). Line filters and line reactors are required for this purpose. The use of line filters of other makes can lead to limit value violations, resonance, overvoltages and irreparable damage to motors or other equipment. The machine manufacturer must provide verification that the machinery to be operated with the drive products and the installed suppression elements, e.g. line filters, are CE-EMC-compliant.

Optional Basic Line Filters that are coordinated with the power ranges in booksize format are available for the SINAMICS S120 drive system.

Basic Line Filter

Basic Line Filter

With the Basic Line Filters in combination with the Active Interface Modules, the limits for the interference voltages can be extended to Category C2 (EN 61800-3) or, retaining Category C3, longer total cable lengths are possible for the configuration.

Basic Line Filters are used on machines on which conducted interference emissions in the frequency range between 150 kHz and 30 MHz need to be damped in accordance with the requirements of CE-EMC legislation.