3M VKK 10 and 20 pair distribution boxes are empty plastic boxes for surface mounting in building applications. They are mainly used for installing SID-CD or DIN connection strips in dry room environments. Made from thermoplastic ABS plastic, the distribution boxes are highly impact resistant. There are knockouts for cable entries/exits on all sides of the cover and in the base plate. Each distribution box is supplied with screws for securing the component parts. The maximum permissible height of internal components is 38 mm.