Abstract: The invention consists of a box-shaped electrical assembly with a frontal cover and screw connections for the connection of leads accessible from the front. The cable lead openings to the screw connections are located in an open-to-the-front, longitudinal channel located at the front of the assembly. The cover acts as a labeling plate and also functions as a cover for the longitudinal channel and for the screw connections. The screw connections electrically connect an external cable to a plug unit subassembly. The plug unit is connectable with a circuit board enclosed within the assembly. The plug unit is provided with a pivotal axis, and is adapted for connecting to a plug strip that is mechanically and electronically connected to the circuit board.

Abstract: The invention concerns an electrical system consisting of removable, variably sized, individual sub-assemblies interconnected electrically and physically with an assembly carrier. This assembly carrier provides mounting for connectors of various configurations which mate with the individual sub-assemblies, and also provides mounting for the sub-assemblies themselves. The sub-assembly mounting is by means of a U-shaped projection on which each sub-assembly attaches and then pivots into its secured position. The sub-assembly electrical connectors are mated to the assembly carrier connectors during this pivoting into position. The U-shaped projection is surrounded in a direction perpendicular to the carrier by guide plates providing lateral location and separation of the variably-sized individual sub-assemblies.