Motor Cable Lengths And Cross-Sections - Siemens SINAMICS G120P Hardware Installation Manual

4.3

Motor cable lengths and cross-sections

Permissible cable lengths
Unshielded motor cables can be used. However, in order to comply with EMC Class C1/C2,
shielded cables are required with the appropriate EMC-compliant installation.
The EMC classes relevant for the PM230 are explained below.
First environment
An environment that includes domestic premises and establishments that are connected
directly to a public low-voltage line supply without the use of an intermediate transformer.
Note
Example: Houses, apartments, commercial premises or offices in residential buildings.
Category C1
Power Drive System (PDS) with a rated voltage less than 1000 V intended for use in the first
environment.
Category C2
Power Drive System with a rated voltage less than 1000 V, which is neither a plug-in device
nor a movable device, and when used in the first (domestic) environment, is only intended to
be installed and commissioned by a professional.
Note
A professional is a person or organization having the skills in installing and/or commissioning
Power Drive Systems (PDS), including the associated EMC aspects.
The following cable specifications are to be taken into account in order to comply with the
standards specified in the table below.
PM230 Power Module IP55
Hardware Installation Manual, 11/2014, A5E35319202B AA
4.3 Motor cable lengths and cross-sections
Connecting
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