Meter distribution box in the ZVi-K and Svi product variants. The Spelsberg ZVi-K products, which have been type-tested in accordance with DIN EN 61439-2/3, are completely pre-wired and ready for connection. The SVi meter housings offer flexible combination options in numerous housing variants. Every installer will ne pleased with their compact construction type during installation. With the Spelsberg alternating current mains connection boxes, installers need not worry about corrosion or condensate. Spelsberg and its product experts have developed technologies that prevent this. Its use in challenging environments is no problem. The meter housings are manufactured in industrial quality and withstand dust, splashing water and shocks.