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Electrical data, connections and wiring
Fuses
Model
3 × 380-480 V
VLZ065
Wire sizes
Voltage range
380 - 480 V
CDS803-11kW
Note: The wire size in the guideline is the maximum wire size that connectors can accept but not the actual needed cable. The needed
cable size should be specified by the OEM depending on the unit design, ambient temperature, the wire material, current, etc...
Soft-start control
14
AB444226142054en-000101
Danfoss recommends using the fuses listed
below to protect service personnel and property
in case of component break-down in the
frequency converter.
Power
[kW]
Type RK5
11
FRS-R-80
Below table lists maximum wiring sizes for the motor compressor power supply cables.
from network
to drive
I
Power input
Circuit breaker
From network to frequency converter
Type
mm²
6
The CDS803 frequency converter generates by
design a compressor soft start with a default
initial ramp up refer to 'Manage speed limit' .
Current inrush will not exceed the frequency
converter maximum current.
For circuit breakers, Moeller types have been
tested and are recommended.
UL Compliant fuses
Bussmann
Type RK1
Type J
Type T
KTS-R80
JKS-80
JJS-80
from drive to
to compressor
From frequency converter to compressor
AWG
Type
10
VLZ065
Basically seen from the mains, the inrush peak
reachs a level which is only a few percent more
than the rated nominal current.
Recommended cir‐
Non -UL
cuit breaker
Maximum
IP20
fuse
Type G
Moeller type
63
PKZM4-50
mm²
AWG
6
10
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