rated voltage 25 kV
rated current 400 and 630 A

Since already a lot of years, the company DRIBO Ltd. is involved in the retrofitting of older types of switchboards. The procedures and experiences gathered from the S11 switchboard retrofit (replacement of BA or BAJ load disconnectors), and the RSO 6 switchboards (with OK or OKJ load disconnectors), as well as the skills and practices gathered from the reconstruction works can also be used in the reconstruction of other types of switching systems.