Radio Interference Suppression Filter - Eaton PowerXL DB1 Series Installation Manual

2.6 Radio interference suppression filter

The DB1 device series variable frequency drives are equipped with internal
radio interference suppression filters. Combined with a 360 ° shielded motor
conductor grounded on both sides, this enables compliance with the EMC
limit value in category C1, First Environment (IEC/EN61800-3) in the event of
line-bound electromagnetic interference. This requires installation in
accordance with EMC requirements, as well as not exceeding permissible
motor cable lengths.
• 1 m in category C1 in First Environment
• 3 m in category C2 in First and Second Environment
• 10 m in category C3 in Second Environment.
￫
Longer motor conductors can still comply with the EMC limit
values for line-bound interference if external EMC filters are
used.
￫
In the case of power drive systems (PDS) with variable fre-
quency drives, electromagnetic compatibility (EMC) measures
must already be taken into account during the engineering
stage, as making changes during assembly and installation and
retroactively fixing things will be more expensive.
DB1 variable frequency drive 11/20 MN040031EN Eaton.com
2.6 Radio interference suppression filter
2 Engineering
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