User Guide

Honeywell Installation 21
4
4.2.3 Cable and fuse specifications
Use cables with heat resistance of at least 158 °F (+70 °C). The cables and the fuses
must be sized according to the tables below. Installation of cables according to UL
regulations is presented in Chapter 4.2.6.
The fuses also function 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 class Level H Level L Level N
Mains cable types 1 1 1
Motor cable types 3 2 1
Control cable types 4 4 4
Table 4.4 : Cable types required to meet standards. EMC levels are described in
Chapter 4.1.3.
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 recom-
mended).
*360º grounding of both motor and FC connection required to meet the
standard
4
Screened cable equipped with compact low-impedance shield
(NKCABLES /Jamak, SAB/ÖZCuY-O or similar).
Table 4.5 : Cable type descriptions
Frame Type
I
N
[A]
Fus
e
[A]
Mains cable
Cu [AWG]
Terminal cable size (min/max)
Main
terminal
[AWG]
Ground
terminal
[AWG]
Control
terminal
[AWG]
Relay
terminal
[AWG]
MI1 P25 - P75 1,7-3,7 10 2*15+15 15-11 15-11 20-15 20-15
MI2 1P1 - 1P5 4,8-7,0 20 2*13+13 15-11 15-11 20-15 20-15
MI3 2P2 11 32 2*9+9 15-9 15-9 20-15 20-15
Table 4.6 : Cable and fuse sizes for SmartVFD Compact, 208 - 240V