Abstract: An electrical control box, particularly for low-voltage systems, includes an interior defining a compartment. At least one stationary counterpart contact and a counterpart element are disposed in the compartment. At least one drawer preferably being elongated rectangularly in the vertical direction is to be inserted into the compartment for holding electrical and/or electronic components for switching, controlling and the like. The at least one drawer has a back to be located in the interior and a bottom. Rollers are disposed on the bottom. At least one contact location is disposed on the back for respectively contacting the at least one stationary counterpart contact.

Abstract: A device for locking an optically transparent trough of an extended-field light to a housing includes a slider element, which can be actuated manually from the ouside and which is longitudinally displaceably guided in the housing, for actuating connecting elements connecting the trough to the housing. At least one respective inwardly projecting projection is disposed at edges of the trough and the housing which are adjacent and one above the other. The projections are disposed and oriented in the same direction and parallel to one another, so that they are situated one above the other in the assembled condition of trough and housing. A grip is coupled with the slider element for each pair of projections. The jaws of the grip receive the pair of projections between them, as soon as the slider element is displaced from the releasing position into the locking position.

Abstract: A transformer, choke or the like includes a magnetic core assembled from two lamination packets formed of laminations layered in a given direction. The lamination packets have outer contacting surfaces defining a partition line therebetween. A weld seam transverse to the given direction fastens the contacting surfaces to one another and overlaps the partition line. A fastening element fastens the transformer, choke or the like to a floor or a wall. Upright tabs formed on the fastening element have free edges alongside the partition line being partially welded with the weld seam.

Abstract: A power supply includes a housing having a bottom, a partition at the bottom of the housing extended perpendicular to the bottom of the housing as seen in longitudinal direction of the partition subdividing the housing into first and second spaces, electronic modules including switching and control stages exclusively disposed in the first space and at least one other module disposed in the second space, a power transformer fastened to the partition, extended through an opening formed in the partition and having a primary side disposed in the first space in vicinity of the switching stage, and a circuit board spaced from the bottom of the housing having conductor runs forming connecting lines interconnecting the modules.