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Appendix 4. EMC Installation Guidelines 
 
 
 
 
 
A4 - 9
Appendix 4-6-2  Ferrite core 
 
A ferrite core is integrated and mounted on the plastic case. 
Quick installation is possible without cutting the interface cable or power cable. 
This ferrite core is effective against common mode noise, allowing measures against noise to be taken 
without affecting the signal quality. 
 
A
B
φC
φD
A
B
D
E
φC
A
B
φ
C
φ
D
φ
C
φ
D
E
A
B
 
 
Recommended ferrite core 
TDK ZCAT Series 
Shape and dimensions 
ZCAT type 
ZCAT-B type 
ZCAT-C type 
ZCAT-A type 
Fig.2 
Fig.1 
Fig.3 Fig.4 
 
 
 
[Unit: mm]
 
Part 
name 
Fig. 
A B C D E 
Applicable 
cable outline 
Mass 
Recommended 
ferrite core 
ZCAT3035-1330 (-BK)*
1
 
1  39 34 13 30 --- 
13 
max. 
63 
○ 
ZCAT2035-0930-M (-BK) 
2  35 29 13 23.5
22  10 
to 
13 
29 
 
ZCAT2017-0930-M (-BK) 
3 21 17 9 20 
28.5
max. 
12 
 
ZCAT2749-0430-M (-BK) 
4 49 27 4.5
19.5
---  4.5 
max. 
26 
 
 
*1  A fixing band is enclosed when shipped. 
 
 
 
ZCAT-B type: Cabinet fixed type, installation hole ø4.8 to 4.9mm, plate thickness 0.5 to 2mm 
 
ZCAT-C type: Structured so that it cannot be opened easily by hand once closed.