Siemens SINAMICS V20 Operating Instructions Manual page 51

Note
Cable connection
Separate the control cables from the power cables as much as possible.
Keep the connecting cables away from rotating mechanical parts.
EMC-compliant installation of external line filter options
All 400 V converters must be mounted in a cabinet with a special EMC gasket around the
door.
All the following ferrite cores are recommended in accordance with EN 55011.
For 400 V unfiltered frame size B converters fitted with the filters specified in Section B.1.7:
To meet the radiated and conducted emissions Class A, attach 1 x ferrite core of Type "
WeiAiPu V18004", or equivalent in the vicinity of the motor output terminals (U, V, and W,
excluding the PE terminal) of the converter.
For 400 V unfiltered frame size C converters fitted with the filters specified in Section B.1.7:
To meet the radiated and conducted emissions Class A, attach 1 x ferrite core of Type
"Wurth 742-715-4", or equivalent in the vicinity of the converter mains terminals.
For 400 V unfiltered frame size D converters fitted with the filters specified in Section B.1.7:
To meet the radiated and conducted emissions Class A, attach 2 x ferrite cores of Type
"Wurth 742-715-5" or equivalent in the vicinity of the converter mains terminals; attach 1x
ferrite core of Type "Wurth 742-712-21" or equivalent in the vicinity of the external line filter
mains terminals.
For 400 V unfiltered frame size E converters fitted with the filters specified in Section B.1.7:
To meet the radiated and conducted emissions Class A, attach 1 x ferrite core of Type
"Seiwa E04SRM563218" or equivalent in the vicinity of the converter mains terminals; attach
2 x ferrite cores of Type "Seiwa E04SRM563218" or equivalent in the vicinity of the motor
terminals of the converter.
For 230 V filtered frame size AA/AB converters:
To meet the radiated and conducted emissions Class B, attach 1 x ferrite core of Type "K3
NF-110-A(N)GY0", or equivalent in the vicinity of the motor output terminals (U, V, and W,
excluding the PE terminal) of the converter; attach 1x ferrite core of Type "K3 NF-110-
A(N)GY0" or equivalent on the motor cable outside the threaded hole of the cabinet; attach 2
x ferrite cores of Type "K3 NF-110-A(N)GY0" or equivalent on the motor cable in the vicinity
of the motor.
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Electrical installation
4.4 EMC-compliant installation
49