Snap-on rail mounted electrical device

摘要

A electrical device can be snapped onto a support rail by a compression spring orthogonal to a length of the rail and arranged in a cylindrical housing. The housing opens to the outside, opposite the edge of the rail, via an opening in a top adapted to axial insertion of the spring during its assembly and includes an elastic wall capable of transversal movement, with the wall having a bearing surface on a rail edge side on which the spring is buttressed or having another similar bearing surface that can be activated after the axial insertion of the spring.