Danfoss VLT Micro Drive FC 51 Quick Manual page 8

Quick Guide
1 1
Branch circuit protection
To protect the installation against electrical and fire
hazards, protect all branch circuits in an installation, switch
gear, machines, and so on, against short circuits and
overcurrent according to national/international regulations.
Short-circuit protection
Use the fuses mentioned in Table 1.3 to protect service
personnel or other equipment if there is an internal failure
in the unit or short circuit on DC-link. If there is a short
circuit on the motor or brake output, the frequency
converter provides full short-circuit protection.
Overcurrent protection
To avoid overheating of the cables in the installation,
provide overload protection. Always carry out overcurrent
protection according to national regulations. Fuses must be
FC 51
1x200–240 V
kW
0K18-0K37
0K75
1K5
2K2
3x200–240 V
0K25
0K37
0K75
1K5
2K2
3K7
3x380–480 V
0K37-0K75
1K5
2K2
3K0
4K0
5K5
7K5
11K0
15K0
18K5
22K0
Table 1.3 Fuses
6
VLT
Bussmann Bussmann
Type RK1 Type J
KTN-R15 JKS-15
KTN-R25 JKS-25
KTN-R35 JKS-35
KTN-R50 JKS-50
KTN-R10 JKS-10
KTN-R15 JKS-15
KTN-R20 JKS-20
KTN-R25 JKS-25
KTN-R40 JKS-40
KTN-R40 JKS-40
KTS-R10 JKS-10
KTS-R15 JKS-15
KTS-R20 JKS-20
KTS-R40 JKS-40
KTS-R40 JKS-40
KTS-R40 JKS-40
KTS-R40 JKS-40
KTS-R60 JKS-60
KTS-R60 JKS-60
KTS-R60 JKS-60
KTS-R60 JKS-60
Danfoss A/S © 05/2016 All rights reserved.
®
Micro Drive FC 51
designed for protection in a circuit capable of supplying a
maximum of 100000 A
Non-UL compliance
If UL/cUL is not to be complied with, use the fuses
mentioned in Table 1.3, which ensure compliance with
EN50178/IEC61800-5-1:
If there is a malfunction, not following the fuse recommen-
dation may result in damage to the frequency converter
and the installation.
Maximum fuses UL
Bussmann Littelfuse
Type T Type RK1
JJN-15 KLN-R15
JJN-25 KLN-R25
JJN-35 KLN-R35
JJN-50 KLN-R50
JJN-10 KLN-R10
JJN-15 KLN-R15
JJN-20 KLN-R20
JJN-25 KLN-R25
JJN-40 KLN-R40
JJN-40 KLN-R40
JJS-10 KLS-R10
JJS-15 KLS-R15
JJS-20 KLS-R20
JJS-40 KLS-R40
JJS-40 KLS-R40
JJS-40 KLS-R40
JJS-40 KLS-R40
JJS-60 KLS-R60
JJS-60 KLS-R60
JJS-60 KLS-R60
JJS-60 KLS-R60
(symmetrical), 480 V maximum.
rms
Ferraz Ferraz Shawmut
Shawmut
Type CC Type RK1
ATM-R15 A2K-15R
ATM-R25 A2K-25R
– A2K-35R
– A2K-50R
ATM-R10 A2K-10R
ATM-R15 A2K-15R
ATM-R20 A2K-20R
ATM-R25 A2K-25R
ATM-R40 A2K-40R
– A2K-40R
ATM-R10 A6K-10R
ATM-R15 A2K-15R
ATM-R20 A6K-20R
ATM-R40 A6K-40R
ATM-R40 A6K-40R
– A6K-40R
– A6K-40R
– A6K-60R
– A6K-60R
– A6K-60R
– A6K-60R
Maximum fuses
non–UL
Type gG
16A
25A
35A
50A
10A
16A
20A
25A
40A
40A
10A
16A
20A
40A
40A
40A
40A
63A
63A
80A
80A
MG02BB02