Fuses - Danfoss VLT HVAC Basic Drive FC 10 Quick Manual

Quick Guide
1 1
IP20 380-480V 90kW
1
1 Line
2 Relays
3 Earth
4 Motor

1.3.6 Fuses

Branch circuit protection:
In order to protect the installation against electrical and fire
hazard, all branch circuits in an installation, switch gear,
machines etc., must be short-circuit and overcurrent
protected according to national/international regulations.
Short circuit protection:
Danfoss recommends using the fuses mentioned in the
following tables to protect service personnel or other
equipment in case of an internal failure in the unit or short-
circuit on DC-link. The frequency converter provides full
short circuit protection in case of a short-circuit on the
motor.
Overcurrent protection:
Provide overload protection to avoid overheating of the
cables in the installation. Overcurrent protection must
always be carried out according to national regulations.
Fuses must be designed for protection in a circuit capable of
supplying a maximum of 100,000A
maximum.
6
VLT HVAC Basic Drive FC 101 Quick Guide
4
2
3
(symmetrical), 480V
rms
MG.18.A1.02 - VLT
Non UL compliance:
If UL/cUL is not to be complied with, Danfoss recommends
using the fuses mentioned in the below table, which will
ensure compliance with IEC61800-5-1:
In case of malfunction, not following the fuse recommen-
dation may result in damage to the frequency converter.
UL
Bussmann Bussmann Bussmann Bussmann Max.
Power Type RK5 Type RK1 Type J
kW
3 x 200-240V
0.25 FRS-R-10
0.37 FRS-R-10
0.75 FRS-R-10
1.5 FRS-R-10
2.2 FRS-R-15
3.7 FRS-R-25
5.5 FRS-R-50
7.5 FRS-R-50
11 FRS-R-80
3 x 380-480V
0.37 FRS-R-10
0.75 FRS-R-10
1.5 FRS-R-10
2.2 FRS-R-15
3 FRS-R-15
4 FRS-R-15
5.5 FRS-R-25
7.5 FRS-R-25
11 FRS-R-50
15 FRS-R-50
18.5 FRS-R-80
22 FRS-R-80
30 FRS-R-80
37 FRS-R-100
45 FRS-R-125
55 FRS-R-150
75 FRS-R-200
90 FRS-R-250
®
is a registered Danfoss trademark
Type T
KTN-R10 JKS-10 JJN-10
KTN-R10 JKS-10 JJN-10
KTN-R10 JKS-10 JJN-10
KTN-R10 JKS-10 JJN-10
KTN-R15 JKS-15 JJN-15
KTN-R25 JKS-25 JJN-25
KTN-R50 JKS-50 JJN-50
KTN-R50 JKS-50 JJN-50
KTN-R80 JKS-80 JJN-80
KTS-R10 JKS-10 JJS-10
KTS-R10 JKS-10 JJS-10
KTS-R10 JKS-10 JJS-10
KTS-R15 JKS-15 JJS-15
KTS-R15 JKS-15 JJS-15
KTS-R15 JKS-15 JJS-15
KTS-R25 JKS-25 JJS-25
KTS-R25 JKS-25 JJS-25
KTS-R50 JKS-50 JJS-50
KTS-R50 JKS-50 JJS-50
KTS-R80 JKS-80 JJS-80
KTS-R80 JKS-80 JJS-80
KTS-R80 JKS-R80 JJS-R80
KTS-R100 JKS-R100 JJS-R100
KTS-R125 JKS-R125 JJS-R125
KTS-R150 JKS-R150 JJS-R150
KTS-R200 JKS-R200 JJS-R200
KTS-R250 JKS-R250 JJS-R250
Non
UL
Fuse
Type
gG
10
10
10
10
16
25
50
50
65
10
10
10
15
15
15
25
25
50
50
65
65
80
100
125
150
200
250