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With the COMBI 304 we are not only launching a new box size within our beloved COMBI series, we are also introducing a new design: The COMBI 304 is circular with a diameter of 82 mm and a height of 57 mm. This junction box, especially in its standard colour black, is perfectly suited for architectural and retro design projects.

The COMBI 304 in detail

  • High-quality material: UV and Ozone resistant. Suitable for indoors and out
  • High protection class IP66. With cable gland even IP67.
  • Flat lid: Bayonet cap (screwed by a quarter turn)
  • Unique hook closing mechanism to prevent unauthorised access. Tool required to gain access once closed.
  • Mounted using external lugs
  • 4 x M20 threaded membrane entries
  • Available in 3 colours (White, Black, Grey)

Installation variants

Interactive COMBI 304

Our digital leaflet bundles all interactive content about our COMBI 304 in a compact design. Pages will come to life with 3D models, videos and animations.
Click here to have a look.


Link to the product data

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