Danfoss VLT Micro Drive FC 51 Guide Rapide page 15

Quick Guide
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 1.4 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.
FC 51
Bussmann
1x200–240 V
kW Type RK1
0K18–0K37 KTN-R15
0K75 KTN-R25
1K5 KTN-R35
2K2 KTN-R50
3x200–240 V
0K25 KTN-R10
0K37 KTN-R15
0K75 KTN-R20
1K5 KTN-R25
2K2 KTN-R40
3K7 KTN-R40
3x380–480 V
0K37–0K75 KTS-R10
1K5 KTS-R15
2K2 KTS-R20
3K0 KTS-R40
4K0 KTS-R40
5K5 KTS-R40
7K5 KTS-R40
11K0 KTS-R60
15K0 KTS-R60
18K5 KTS-R60
22K0 KTS-R60
Table 1.4 Fuses
MG02BC4P
Quick Guide•Kurzanleitung•Guide rapide•Guía rápida•Guia Rápido•Краткое
руководство
Maximum fuses UL
Bussmann Bussmann Littelfuse
Type J Type T
JKS-15 JJN-15
JKS-25 JJN-25
JKS-35 JJN-35
JKS-50 JJN-50
JKS-10 JJN-10
JKS-15 JJN-15
JKS-20 JJN-20
JKS-25 JJN-25
JKS-40 JJN-40
JKS-40 JJN-40
JKS-10 JJS-10
JKS-15 JJS-15
JKS-20 JJS-20
JKS-40 JJS-40
JKS-40 JJS-40
JKS-40 JJS-40
JKS-40 JJS-40
JKS-60 JJS-60
JKS-60 JJS-60
JKS-60 JJS-60
JKS-60 JJS-60
Danfoss A/S © 10/2017 All rights reserved.
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
designed for protection in a circuit capable of supplying a
maximum of 100000 A (symmetrical), 480 V maximum.
rms
Non-UL compliance
If UL/cUL is not to be complied with, use the fuses
mentioned in Table 1.4, 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.
Ferraz Ferraz Shawmut
Shawmut
Type RK1 Type CC
KLN-R15 ATM-R15
KLN-R25 ATM-R25
KLN-R35 –
KLN-R50 –
KLN-R10 ATM-R10
KLN-R15 ATM-R15
KLN-R20 ATM-R20
KLN-R25 ATM-R25
KLN-R40 ATM-R40
KLN-R40 –
KLS-R10 ATM-R10
KLS-R15 ATM-R15
KLS-R20 ATM-R20
KLS-R40 ATM-R40
KLS-R40 ATM-R40
KLS-R40 –
KLS-R40 –
KLS-R60 –
KLS-R60 –
KLS-R60 –
KLS-R60 –
Maximum fuses
non–UL
Type RK1 Type gG
A2K-15R 16A
A2K-25R 25A
A2K-35R 35A
A2K-50R 50A
A2K-10R 10A
A2K-15R 16A
A2K-20R 20A
A2K-25R 25A
A2K-40R 40A
A2K-40R 40A
A6K-10R 10A
A2K-15R 16A
A6K-20R 20A
A6K-40R 40A
A6K-40R 40A
A6K-40R 40A
A6K-40R 40A
A6K-60R 63A
A6K-60R 63A
A6K-60R 80A
A6K-60R 80A
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