Siemens SINAMICS S120 Equipment Manual page 151

Configuration
Active Line Modules are always operated together with an Active Interface Module, which
contains the associated Clean Power Filter and pre-charging circuit. The included line filter
enables compliance with the EMC requirements for the "second environment".
Note
The configuration examples of the individual Active Line Modules are used to illustrate the
positioning of the factory-fitted components. They show the maximum possible configuration
of the modules, which contain all options that can be ordered.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Cabinet Modules
5.4 Active Line Modules
151