Effective EMC shielding in control cabinets

EMI problems in control cabinets do not usually arise by chance. They mainly occur in places where the enclosure structure is interrupted or must be left open for specific reasons. Typical weak points include door gaps, ventilation openings, viewing areas and cable entries.

It is precisely in these areas that shielding performance can be significantly reduced, with potential implications for the functional safety of the entire system.

Typical challenges at a glance

  • Frames and external components (doors, side panels, etc.) require a reliable electrically conductive connection
  • Ventilation openings must not impair the shielding effect
  • Viewing areas must combine transparency with protection
  • Cable entries require reliable integration of the cable shielding

We offer a comprehensive product portfolio designed precisely for these requirements:

  • Fabric/foil over foam gaskets and contact springs for secure electrical connections and reliable shielding
  • Honeycomb filters that combine air permeability with protection
  • Shielded windows for clear visibility whilst maintaining high shielding effectiveness
  • Knitted wire gaskets for optimal contact at cable entries

Effective

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shielding is not achieved by a single product, but is the result of a well-thought-out overall concept. Only the interaction of all components ensures consistently high system reliability

 

Source URL: https://www.mtc.de/media/news/effective-emc-shielding-control-cabinets