Siemens SIMOCODE pro System Manual page 113

Current/voltage measuring modules up to 100 A are suitable for standard rail
mounting or can be fixed directly to the mounting plate using additional
push-in lugs. The current/voltage measuring modules up to 200 A can also
be mounted on the standard mounting rail or, optionally, they can be fixed
directly to the mounting plate with the screw attachments that are
integrated in the enclosure. The current/voltage measuring module up to
630 A can only be mounted using the integrated screw attachments. Basic
units can only be mounted separately next to current/voltage measuring
modules.
For calculating or monitoring performance variables, current/voltage
measuring modules have additional, removable terminals that can be fed
with all three phase voltages of the main circuit. An additional 3-core cable
can be used, for example, to connect the main circuit directly from the bus
connections of the current/voltage measuring module with the connection
terminals of the voltage measurement module.
Note
The current/voltage measuring module requires basic unit 2, version *E02*
(from 04/2005) or later.
Using a decoupling module
A decoupling module may be required when using a voltage measuring
module.
See Chapter
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
1.7.6.
System description
1-95