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Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 109746435, Entry date: 03/31/2017
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MICROMASTER 4, SINAMICS G110: Unfiltered inverters with line filters.

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Unfiltered (industrial) variable speed drive must be able to be installed in a power drive system in compliance with category C3 EMC requirements for CE certification.

How can unfiltered (industrial) variable speed drives ensure compliance with Category C3 EMC requirements?

The following information details filter solutions that have been tested with the corresponding unfiltered (industrial) variable speed drive to achieve Class A2 (Category C3) conducted, and Class A2 (Category C3) radiated, emissions requirements, with 25m screened motor cable. Other filter types may perform satisfactorily but have not been tested.   FAQ-0H3Q8UNB_en.pdf (354,9 KB) 

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https://www.siemens.com/cybersecurity#Ouraspiration.