A busbar adapter has a mounting rail for attaching a switching device to the busbar adapter, wherein the mounting rail can be attached to the busbar adapter at different positions. The composite support media is formed by providing nanoporous material on at least a portion of the surfaces of carbonaceous host material. A seal member is coupled to the housing and is moveable between a first position and at least a second position, the second position sealing the inlet. The cached version of the secondary webpage is provided responsive to the selection of the link.