Siemens SINAMICS S120 Equipment Manual page 55

Category C2
Under the following conditions, the Power Modules comply with the limit values of category
C2:
● A Power Module in the blocksize format with internal line filter or a Power Module in the
chassis format with external line filter is used.
● A shielded motor cable with low capacitance is used.
● The motor cable is
– For Power Modules in the blocksize format, FSA to FSC ≤ 50 m.
– for Power Modules in the blocksize format, FSD to FSG ≤ 150 m.
– For Power Modules in the chassis format ≤ 100 m.
● The pulse frequency ≤ rated pulse frequency.
● The current ≤ rated input current in the technical data.
For Power Modules in the chassis format an external line reactor is required to achieve
Category C2.
Category C3
Power Modules in the blocksize format with an integrated line filter - or Power Modules in the
chassis format with an appropriate external line filter meet the limit values for Category C3.
Almost all Power Modules blocksize are available with integrated line filter. The only
exclusion are the 200 V modules, frame sizes FSD to FSF.
Power Modules, Category C3 and can only be used in the second environment.
Category C4
Unfiltered Power Modules meet Category C4 and can only be used in the second
environment when connected to IT line supplies.
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
Mains connection and line-side power components
4.6 Line filter
53