Line Filter; Mains Filter Sk Nhd (Up To Size 4); Mains Filter Sk Lf2 (Size 5 - 7); Table 17: Mains Filter Nhd - nord NORDAC PRO SK 500E Series User Manual

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 www.nord.com.
Inverter ID
SK 5xxE-250-323-A ... -750-323-A
SK 5xxE-111-323-A ... -221-323-A
SK 5xxE-301-323-A ... -401-323-A
SK 5xxE-550-340-A ... -750-340-A
SK 5xxE-111-340-A ... -221-340-A
SK 5xxE-301-340-A ... -401-340-A
SK 5xxE-551-340-A ... -751-340-A

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 www.nord.com.
Inverter ID
SK 5xxE-551-323-A ... -751-323-A
SK 5xxE-112-323-A
SK 5xxE-152-323-A ... -182-323-A
SK 5xxE-112-340-A ... -152-340-A
SK 5xxE-182-340-A ... -222-340-A
SK 5xxE-302-340-A ... -372-340-A

Table 18: Mains filter LF2-...

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BU 0505 EN-3021
2 Assembly and installation
Filter type
SK NHD-480/6-F
SK NHD-480/10-F
SK NHD-480/16-F
SK NHD-480/3-F
SK NHD-480/6-F
SK NHD-480/10-F
SK NHD-480/16-F
Filter type
SK LF2-480/45-F
SK LF2-480/66-F
SK LF2-480/105-F
SK LF2-480/45-F
SK LF2-480/66-F
SK LF2-480/105-F
Part No. Data sheet
278273006 TI 278273006
278273010 TI 278273010
278273016 TI 278273016
278273003 TI 278273003
278273006 TI 278273006
278273010 TI 278273010
278273016 TI 278273016
Part No. Data sheet
278273045 TI 278273045
278273066 TI 278273066
278273105 TI 278273105
278273045 TI 278273045
278273066 TI 278273066
278273105 TI 278273105
49