Insulating shell for Firstbox distribution modules.
In cross-linked, closed-cell expanded polyethylene.
For the installation of the insulating shell, first of all it is necessary to remove the hydraulic unit from the box (there fore do not make the hydraulic and electrical connections before installing the insulating shell). If the insulating shell is to be installed on a unit inside a Metalbox, it is recommended to install the unit keeping a distance between the back of the box and the wall equal to 135 mm.