The brand new junction box of 180x140 mm provides the possibility to carry out wiring in larger scale using terminal blocks S-KSK2, TS rails or screwless terminals. The base pillars are used to fix the terminal block in the box. Another advantage of the box is also a large number of softened inlets, which ensure airtightness of installed cables or pipes. This KOPOS standard is newly used for such a large box. The package includes a lid to cover the box.