Accessories for electrostatic precipitators

High voltage changeover hoods

Reliable earthing must be ensured to disconnect the electrostatic filter during inspections or similar occasions. For this purpose high voltage change-over covers are used, which we supply in the following variants:

  • Manual operation
  • Pneumatic actuation
  • Electrical operation
  • SIL certification (IEC 61508)
  • Customer-specific flange dimensions and adaptation to structural conditions


The transformer rectifier units are often installed outdoors on the filter roof. To protect them from sunlight and weather, sunroofs are often built over them.

Sump trays

The outdoor installation of the transformer rectifier unit usually also includes a drip pan which prevents uncontrolled spreading of the insulating liquid in the event of a leak.

Individual solutions

The complex conditions on site often require very individual solutions. We realize the wishes and ideas of our customers with a perfect fit.

Further accessories:

  • High voltage bushings
  • Low voltage bushings
  • Flange gaskets 

About Rico

Rico-Werk Eiserlo & Emmrich GmbH evolved since 1969 into one of the largest manufacturers of high-voltage DC systems for electrostatic precipitator in Europe. So far, we have built over 15,000 installations, which are in use worldwide. Our products include the top technology in the supply of high voltage electrical filters.

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