Suitable for surface mounting and installation in cable ducts or floor boxes. Can be combined with covers from various switch manufacturers when using an AMJ45 socket without a middle plate. Up to three sockets fit into a floor box device compartment. Cable entry from eight possible directions in 45° increments and plug-in earth connection at all four corners. Optional horizontal and vertical installation in the skirting duct due to variable cable entry. Design with a shallow installation depth; hassle-free installation in the floor box through lateral cable routing in the device compartment. Fully shielded metal housing. Surface mounting requires the surface mounting set 25.16.8555. Flush mounting requires the single cover frame 25.16.8560 or the double cover frame 25.16.8565. The universal device mounting bracket 25.16.8557 allows for easy and space-saving installation of the connection sockets in a skirting duct system. Suitable for channel systems from various manufacturers, e.g., Ackermann, Jung.