Emc Test Results - Danfoss VLT HVAC Basic Drive Quick Manual

Quick Guide

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)
Industrial environment
EN 55011 Class A2
Without
external
filter
H4 RFI filter
(Class A1)
0.25-11 kW
3 x 200-240 V
IP20
0.37-22 kW
3 x 380-480 V
IP20
H2 RFI filter
(Class A2)
15-45 kW
3 x 200-240 V 25
IP20
30-90 kW
3 x 380-480 V 25
IP20
0.75-18.5 kW
3 x 380-480 V 25
IP54
22-90 kW
3 x 380-480 V 25
IP54
H3 RFI filter
(Class A1/B)
15-45 kW
3 x 200-240 V
IP20
30-90 kW
3 x 380-480 V
IP20
0.75-18.5 kW
3 x 380-480 V
IP54
22-90 kW
3 x 380-480 V
IP54
VLT HVAC Basic Drive Quick Guide
EN 55011 Class A1
With Without With
external external external
filter filter filter
25 50
25 50
50
50
25
50
®
MG18A302 - VLT is a registered Danfoss trademark
Housing, trades and Industrial
light industries environment
EN 55011 Class B EN 55011 Class A1
Without With Without
external external external
filter filter filter
20 Yes
20 Yes
No
No
Yes
No
20 Yes
20 Yes
10 Yes
10 Yes
Radiated emission
Housing, trades and
light industries
EN 55011 Class B
With Without With
external external external
filter filter filter
Yes -
Yes -
-
-
-
-
-
-
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