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Cabling and connections 37(96)
6
Installation of an external RFI filter to NXL Compact (MF2-3)
The EMC protection class of NXL Compact frequency converters MF2 and MF3 can be changed from N to
H with an optional external RFI filter. Install the power cables in terminals L1, L2 and L3 and the grounding
cable in terminal PE of the filter. See the figures below. See also mounting instructions of MF2 in Figure
5-2.
Figure 6-10. MF2 with the RFI-filter Figure 6-11. RFI installation for MF2 and MF3, 380…500V, 3
phase supply. Filter type NXLRFIV35
Figure 6-12. RFI cable installation for MF2 and MF3, 208…240V, 1 phase supply. Filter
type NXLRFIV12
MF2
MF3
nxlk1.fh8
BR+
BR-
L1
U/T1
V/T2
W/T3
L2
L3
L1 L2 L3
PE
L1
U/T1
V/T2
W/T3
L2
L3
RFI filter
Mains cable
Earthing
cable
RFI filter
cable
Earthing
cable
Ground
MF2
MF3
rfi2.fh8
N L
PE
L1
U/T1
V/T2
W/T3
L2
BR+
BR-
L1
U/T1
V/T2
W/T3
L2
L3
RFI filter
Mains cable
Earthing
cable
RFI filter
cable
Earthing
cable
Ground