The functional units of the switchgear are guaranteed arc proof in accordance with the IEC 62271-200 Standards, appendix AA, class A accessibility, criteria 1 to 5. All the start-up, maintenance and service operations can be carried out from the front. The switchgear and the earthing switches are operated from the front with the door closed. The range of apparatus for our switchgears are the most complete available on the market, being able to count on vacuum and gas circuit-breakers and vacuum contactors with fuses. All this apparatus is interchangeable inside the same switchgear unit. This makes use of a single switchgear-user interface possible, with the same service and maintenance procedure and operations. The use of these units allows extremely efficient use of space.