2 Assembly and installation
BU 0500 EN-1516
49
2.8 Line filter
An additional external line filter can be installed into the line supply of the frequency inverter to
maintain the increased noise suppression level (class B as per EN 55011).
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2.8.1 Mains filter SK NHD (up to size 4)
SK NHD type mains filters are so-called bottom-mounted combination filters with integrated mains
choke. The mains filter is only intended for three-phase operation.
This provides a compact unit to improve the level of radio interference suppression, which can also be
mounted underneath the frequency inverter if there is a shortage of space.
For further information about the mains filter, please refer to the relevant data sheet. These data
sheets can be downloaded from
Inverter ID
Filter type
Part No.
Data sheet
SK 5xxE-250-323-A
…
-750-323-A
SK NHD-480/6-F
278273006
SK 5xxE-111-323-A
…
-221-323-A
SK NHD-480/10-F
278273010
SK 5xxE-301-323-A
…
-401-323-A
SK NHD-480/16-F
278273016
SK 5xxE-550-340-A
…
-750-340-A
SK NHD-480/3-F
278273003
SK 5xxE-111-340-A
…
-221-340-A
SK NHD-480/6-F
278273006
SK 5xxE-301-340-A
…
-401-340-A
SK NHD-480/10-F
278273010
SK 5xxE-551-340-A
…
-751-340-A
SK NHD-480/16-F
278273016
Table 17: Mains filter NHD-...
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2.8.2 Mains filter SK LF2 (size 5 - 7)
SK LF2 type mains filters are mains filters which can be bottom mounted, and their dimensions are
matched to those of the relevant frequency inverter. This enables space-saving installation. These
data sheets can be downloaded from
Inverter ID
Filter type
Part No.
Data sheet
SK 5xxE-551-323-A
…
-751-323-A
SK LF2-480/45-F
278273045
SK 5xxE-112-323-A
SK LF2-480/66-F
278273066
SK 5xxE-152-323-A … -182-323-A
SK LF2-480/105-F
278273105
SK 5xxE-112-340-A
…
-152-340-A
SK LF2-480/45-F
278273045
SK 5xxE-182-340-A
…
-222-340-A
SK LF2-480/66-F
278273066
SK 5xxE-302-340-A … -372-340-A
SK LF2-480/105-F
278273105
Table 18: Mains filter LF2-...
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Содержание BU 0500
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