Ferrite Core - Mitsubishi Electric MELSEC-A series User Manual

3.1.5 Ferrite core

A ferrite core has the effect of reducing radiated noise in the 30 M Hz to 100 M
Hz band. With the exception of some models, it is not required to fit ferrite
cores to cables, but it is recommended to fit ferrite cores if shield cables pulled
out of the enclosure do not provide sufficient shielding effects.*1 The ferrite
cores used in our tests are TDK's ZCAT3035.
It should be noted that the ferrite cores should be fitted to the cables in the
position immediately before they are pulled out of the enclosure. If the fitting
position is improper, the ferrite will not produce any effect.
1:To response with CE(EN61131-2/A12), make sure to mount 2 or more
ferrite cores onto the power supply line. The mounting position should be as
near the power supply module as possible.
Ferrite core
Type: ZCAT2235-1030A (TDK ferrite core)
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