1.7.5 EMC Test Results
The following test results have been obtained using a system with a frequency converter, a screened control cable, a control
box with potentiometer, as well as a motor screened cable.
RFI Filter Type
Conduct emission. Maximum shielded cable length (m)
Radiated emission
Industrial environment
Housing, trades and
light industries
Industrial
environment
Housing, trades and
light industries
EN 55011 Class A2
EN 55011 Class A1
EN 55011 Class B
EN 55011 Class A1
EN 55011 Class B
Without
external
filter
With
external
filter
Without
external
filter
With
external
filter
Without
external
filter
With
external
filter
Without
external
filter
With
external
filter
Without
external
filter
With
external
filter
H4 RFI filter
(Class A1)
0.25-11 kW
3 x 200-240 V
IP20
25
50
20
Yes
Yes
-
0.37-22 kW
3 x 380-480 V
IP20
25
50
20
Yes
Yes
-
H2 RFI filter
(Class A2)
15-45 kW
3 x 200-240 V
IP20
25
No
-
30-90 kW
3 x 380-480 V
IP20
25
No
-
0.75-18.5 kW
3 x 380-480 V
IP54
25
Yes
22-90 kW
3 x 380-480 V
IP54
25
No
-
H3 RFI filter
(Class A1/B)
15-45 kW
3 x 200-240 V
IP20
50
20
Yes
-
30-90 kW
3 x 380-480 V
IP20
50
20
Yes
-
0.75-18.5 kW
3 x 380-480 V
IP54
25
10
Yes
22-90 kW
3 x 380-480 V
IP54
50
10
Yes
-
Quick Guide
VLT HVAC Basic Drive Quick Guide
MG18A302 - VLT
®
is a registered Danfoss trademark
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