2.8.2 EMC Test Results
The following test results have been obtained using a system with an adjustable frequency drive, a shielded control cable, a
control box with potentiometer, as well as a motor shielded 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)
0.34–15 hp
[0.25–11 kW]
3x200–
240 V IP20
25 50 20 Yes Yes No
0.5–30 hp
[0.37–22 kW]
3x380–
480 V IP20
25 50 20 Yes Yes No
H2 RFI filter (Class A2)
20–60 hp
[15–45 kW]
3x200–
240 V IP20
25 No No
40–125 hp
[30–90 kW]
3x380–
480 V IP20
25 No No
1–25
[0.75–18.5
kW]
3x380–
480 V IP54
25 Yes
30–125 hp
[22–90 kW]
3x380–
480 V IP54
25 No No
Table 2.11 Test Results
Product Overview Design Guide
MG18C522 Danfoss A/S © Rev. 2014-01-14 All rights reserved. 37
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