Abstract: In a material-interlocking connection between aluminum and copper in a layer assembly comprising an aluminum layer disposed on a copper element and a copper layer disposed on the aluminum layer, a weld seam is formed on the top copper layer so as to form a weld which extends through to top copper layer and the aluminum layer into the copper element so as to form in the weld seam an alloy of copper and aluminum.

Abstract: A modular base for an electrical device and an electrical device including same and also removable modules are disclosed. The modular base comprises a plurality of base components adapted to be arranged relative to each other to define a backplane comprising a plurality of module mounting locations, wherein each mounting location comprises a first electrical base connector of one base component and a second electrical base connector of another base component. A plurality of removable modules are adapted to be respectively removably connected to the backplane in the mounting locations to provide a modular electrical device. Each of the modules comprises a first module connector adapted to be mated with a first base connector of a mounting location and a second module connector adapted to be mated with a second base connector of the mounting location The backplane comprises one or more coupling devices for releasably engaging a module.

Abstract: A modular electrical device and/or module for same with improved sealing is disclosed. The device comprises a base comprising at least one mounting location comprising first and second electrical base connectors. The module comprises first and second electrical module connectors that are respectively adapted for mating with the first and second electrical base connectors at respective first and second connector interfaces. First and second seals are located respectively at the first-and second connector interfaces. The first and second seals each comprise first and second sealing elements that act respectively in first and second directions that are transverse relative to each other.

Abstract: A modular base for an electrical device and an electrical device including same and also removable modules are disclosed. The modular base comprises a plurality of base components adapted to be arranged relative to each other to define a backplane comprising a plurality of module mounting locations, wherein each mounting location comprises a first electrical base connector of one base component and a second electrical base connector of another base component. A plurality of removable modules are adapted to be respectively removably connected to the backplane in the mounting locations to provide a modular electrical device. Each of the modules comprises a first module connector adapted to be mated with a first base connector of a mounting location and a second module connector adapted to be mated with a second base connector of the mounting location The backplane comprises one or more coupling devices for releasably engaging a module.