or circuit breakers can be used to provide the overcurrent protection in the installation. Overcur-
rent 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
rms
(symmetrical), 500 V maximum.
Non-UL compliance
If UL/cUL is not to be complied with, we recommend using the following fuses, which will ensure
compliance with EN50178:
In case of malfunction, not following the recommendation may result in unnecessary damage to
the adjustable frequency drive.
FC 300
Max. fuse size
1)
Voltage Type
K25-K75 10A 200-240 V type gG
1K1-2K2 20A 200-240 V type gG
3K0-3K7 32A 200-240 V type gG
5K5-7K5 63A 380-500 V type gG
11K 80A 380-500 V type gG
15K-18K5 125A 380-500 V type gG
22K 160A 380-500 V type aR
30K 200A 380-500 V type aR
37K 250A 380-500 V type aR
1) Max. fuses - refer to national/international regulations to select an appropriate fuse size.
FC 300
Max. fuse size
1)
Voltage Type
K37-1K5 10A 380-500 V type gG
2K2-4K0 20A 380-500 V type gG
5K5-7K5 32A 380-500 V type gG
11K-18K 63A 380-500 V type gG
22K 80A 380-500 V type gG
30K 100A 380-500 V type gG
37K 125A 380-500 V type gG
45K 160A 380-500 V type aR
55K-75K 250A 380-500 V type aR
3. How to Install
VLT
®
AutomationDrive FC 300 Instruction
Manual
28
MG.33.A9.22 - VLT is a registered Danfoss trademark
3