6 POWER CABLING
6.1 CABLE DIMENSIONING AND SELECTION
6.1.1 CABLE AND FUSE SIZES
We recommend the fuse type gG/gL (IEC 60269-1) for mains fuses (-F1). Use only fuses that
have a sufficient voltage rating according to the mains voltage. Do not use larger fuses than
what is recommended in Table 11. The fuses are selected for short circuit protection only.
NOTE!
The overcurrent protection of parallel cables must be done with separate fuses.
Make sure that the operation time of the fuse is less than 0.4 seconds. The operation time
agrees with the fuse type and the impedance of the supply circuit.
The drive must be protected with fast acting aR-type fuses (-FC1) (see Table 13 and Table 15).
Do not use other fuses than these.
No fuses are included in the delivery (-F1 or -FC1).
The table also shows the typical symmetrically shielded copper and aluminum types of the
cables that can be used with the AC drive.
NOTE!
The mains cable and fuse sizes are valid up to a cable length of 100 m, with mains
I
K
= 20 kA.
Fig. 23: The location of the fuses
A. The mains fuses B. The cabinet
The dimensions of the cables agree with the requirements of the standards EN 60204-1
and IEC 60364-5-52: 2001.
•
The cables are PVC-isolated.
•
The maximum ambient temperature is +30 °C.
•
The maximum temperature of the cable surface is +70 °C.
•
The maximum number of parallel cables on a ladder type tray is 9 side by side.
In other conditions, when you select the dimensions of the cables, refer to local safety
regulations, the input voltage and the load current of the drive.
POWER CABLING VACON · 45
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
6
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