Siemens SINAMICS S120 System Manual page 143

Active Infeed components
An Active Infeed comprises an Active Interface Module and an Active Line Module.
The bypass contactor is fitted in the relevant Active Interface Module on Active Infeeds which
feature an Active Line Module of frame size GX. The Active Interface Modules and Active
Line Modules of this frame size have degree of protection IP20.
Figure 8-1 Overview of Active Infeeds, frame sizes GI/GX
In the case of an Active Infeed with an Active Line Module of frame size JX, the bypass
contactor is not included in the associated Active Interface Module, but must be provided
separately. The Active Interface Modules and Active Line Modules of this frame size have
degree of protection IP00.
Figure 8-2 Overview of Active Infeeds, frame size JI/JX
Grid infeed
System Manual, 04/2015, A5E03347436A
8.4 Air-cooled Active Line Modules for the grid infeed, chassis format
Device overview
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