3.2.4.4 UL/Non-UL Compliance
To ensure compliance with UL or IEC 61800-5-1, use the circuit breakers or fuses listed in this chapter. Circuit breakers must be
designed for protection in a circuit capable of supplying a maximum of 10000 A
rms
(symmetrical), 480 V maximum.
3.2.4.5 Recommendation of Fuses
NOTICE
If malfunction occurs, failure to follow the protection recommendation may result in damage to the drive.
Table 11: Fuses
Fuse
UL
Non-UL
Bussmann
Bussmann
Bussmann
Bussmann
Maximum fuse
Power [kW (hp)]
Type RK5
Type RK1
Type J
Type T
Type G
3x200–240 V IP20
6.0 (8.0)
FRS-R-50
KTN-R50
JKS-50
JJN-50
50
7.5 (10)
FRS-R-50
KTN-R50
JKS-50
JJN-50
50
10 (15)
FRS-R-80
KTN-R80
JKS-80
JJN-80
65
3x380–480 V IP20
6.0 (8.0)
FRS-R-25
KTS-R25
JKS-25
JJS-25
25
7.5 (10)
FRS-R-25
KTS-R25
JKS-25
JJS-25
25
10 (15)
FRS-R-50
KTS-R50
JKS-50
JJS-50
50
18.5 (25)
FRS-R-80
KTS-R80
JKS-80
JJS-80
63
22 (30)
FRS-R-80
KTS-R80
JKS-80
JJS-80
63
30 (40)
FRS-R-125
KTS-R125
JKS-R125
JJS-R125
80
3.2.5 EMC-correct Electrical Installation
General points to be observed to ensure EMC-correct electrical installation:
•
Use only shielded/armored motor cables and shielded/armored control cables.
•
Ground the shield at both ends.
•
Avoid installation with twisted shield ends (pigtails), because it reduces the shielding effect at high frequencies. Use the cable
clamps provided.
•
Ensure the same potential between the drive and the ground potential of PLC.
•
Use star washers and galvanically conductive installation plates.
Installation
Operating Guide | VLT® Compressor Drive CDS 803
AQ321748767627en-000101 / 130R0570| 19
Danfoss A/S © 2019.12
Summary of Contents for VLT CDS 803
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