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3.2.4 Cable and fuse specifications
Use cables with heat resistance of at least +70°C. The cables and the fuses must be
dimensioned according to the tables below. Installation of cables according to UL
regulations is presented in Chapter Cable installation and the UL standards.
The fuses function also as cable overload protection.
These instructions apply only to cases with one motor and one cable connection from
the frequency converter to the motor. In any other case, ask the factory for more in-
formation.
EMC category
cat. C2
cat. C3
cat. C4
Mains cable types
1
1
1
Motor cable types
3
2
1
Control cable types
4
4
4
Table 3.3: Cable types required to meet standards. EMC categories are
described in Chapter EMC levels
Cable type
Description
1
Power cable intended for fixed installation and the specific mains voltage.
Shielded cable not required.
(NKCABLES / MCMK or similar recommended)
2
Power cable equipped with concentric protection wire and intended for
the specific mains voltage.
(NKCABLES / MCMK or similar recommended).
3
Power cable equipped with compact low-impedance shield and intended
for the specific mains voltage.
(NKCABLES / MCCMK, SAB / ÖZCUY-J or similar recommended).
*360º earthing of both motor and FC connection required to meet the standard
4
Screened cable equipped with compact low-impedance shield (NKCA-
BLES /Jamak, SAB / ÖZCuY-O or similar).
Table 3.4: Cable type descriptions
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