Electrical Installation In General - Danfoss VLT Micro FC 51 Quick Manual

1 Quick Guide

1.3.4 Electrical Installation in General

All cabling must comply with national and local regulations on cable cross-sections and ambient tem-
1
perature. Copper conductors required, (60-75° C) recommended.
Details of terminal tightening torques.
Frame 1 x 200-240 V 3 x 200-240 V 3 x 380-480 V
M1 0.18 - 0.75
M2 1.5
M3 2.2
M4
M5
1) Spade connectors (6.3 mm Faston plugs)
Table 1.2: Tightening of terminals.
1.3.5 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-circuited 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 or brake output.
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 100,000 A
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 EN50178/IEC61800-5-1:
In case of malfunction, not following the fuse recommendation may result in damage to the frequency converter.
FC 51
Bussmann
1 X 200-240 V
kW Type RK1
0K18 - 0K37 KTN-R15
0K75 KTN-R25
1K5 KTN-R35
2K2 KTN-R45
3 x 200-240 V
0K25 KTN-R10
0K37 KTN-R15
0K75 KTN-R20
1K5 KTN-R25
2K2 KTN-R40
3K7 KTN-R40
3 x 380-480 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 1.3: Fuses
4
Power (kW)
Line
0.25 - 0.75 0.37 - 0.75 1.4
1.5 1.5 - 2.2 1.4
2.2 - 3.7 3.0 - 7.5 1.4
11.0-15.0 1.25
18.5-22.0 1.25
(symmetrical), 480 V maximum.
rms
Bussmann Bussmann
Type J Type T
JKS-15 JJN-15
JKS-25 JJN-25
JKS-35 JJN-35
JKS-45 JJN-45
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
MG.02.B5.02 - VLT
Torque (Nm)
Motor DC connection/Brake
0.7 1)
Spade
0.7 Spade 1)
0.7 Spade 1)
1.25 1.25
1.25 1.25
UL
Ferraz-
Littel fuse
Shawmut
Type RK1 Type CC
KLN-R15 ATM-R15
KLN-R25 ATM-R25
KLN-R35 -
KLN-R45 -
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 -
®
is a registered Danfoss trademark
Quick Guide for VLT Micro FC 51
Control Terminals Earth Relay
0.15 3
0.15 3
0.15 3
0.15 3
0.15 3
Max. fuses non UL
Ferraz-
Shawmut
Type RK1 Type gG
A2K-15R 16A
A2K-25R 25A
A2K-35R 35A
A2K-45R 40A
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
A6K405R 40A
A6K-40R 40A
A6K-40R 40A
A6K-40R 40A
A6K-60R 63A
A6K-60R 63A
A6K-60R 80A
A6K-60R 80A
0.5
0.5
0.5
0.5
0.5