A method and device are provided for marking electrical devices which can be arranged in a row on a support rail, with the aid of a laser head, wherein the support rail is pivotable about its longitudinal axis and the laser head is guided such that it can be moved at least along the longitudinal axis of the support rail. A number of marking instructions, each including a marking content and a position and an orientation of the surface to which the marking content is to be applied are specified. An image of at least a section of the support rail and of at least one electrical device are created from an image capture device and at least one of the positions at which one of the marking contents is to be applied is corrected based on an evaluation of the image. The marking instructions are grouped into marking levels in such a way that all marking instructions of one marking level can be applied by the laser head without a movement of the laser head or the support rail. The marking levels differ in terms of spatial coordinates and/or parameters for the laser head. A first one of the marking levels is selected, and the laser head is positioned and/or the support rail is pivoted according to the spatial coordinates of the selected marking level. Markings are applied according to the marking instructions of the selected marking level with the parameters for the laser head. A next one of the marking levels for marking is selected based on the movements of the laser head and the support rail which would be necessary to enables markings according to the next one of the marking levels to be applied.

A method for producing an electrical connection arrangement includes: providing an electrical connection device having a base body that has a recess for accommodating a marking label; providing the marking label; inserting the marking label into the recess; and establishing an integrally-bonded and/or form-fitting connection between the marking label and the base body by ultrasonic welding.

A support rail for luminaires or electrical units (60) has a support rail profile (50), which encloses an elongated receiving space, along with at least one busbar (55), arranged in the receiving space, with contactable conductors (58), wherein the support rail (50) further has, on its outside, display means (10) for visually representing the function of the conductors (58).

A marking strip has a plurality of marking elements which are connected to each other by a connecting region. The marking strip having the marking elements is designed to mark electrical devices, in particular electrical devices that can be arranged next to each other such as terminal blocks. Each of the marking elements has a marking plate including at least one writing field which can be provided with information. On the side facing away from the writing field, each of the marking elements has a locking contour which is integrally connected with the marking plate. The marking strip is formed of at least two different plastic materials of different hardness. The locking contour of each marking element is formed of a harder plastic material, and the marking plate is formed of a softer plastic material at least in the region of the writing field. The connecting region between the marking elements is formed of the softer plastic material.

A receptacle device includes a first cooperating assembly configured to receive a first accessory having a plurality of first sized cooperating elements and a second cooperating assembly configured to receive a second accessory having a plurality of second sized cooperating elements. The first cooperating assembly has a pair of protrusions of a first type that are symmetrical with regard to a first central plane and that extend toward each other transversally to the first central plane. The second cooperating assembly has a pair of protrusions of a second type that are symmetrical with regard to a second central plane and that extend opposite to each other transversally to the second central plane. The first central plane is parallel to the second central plane.

A plug-in connector cooperating with a terminal block includes a body having a cooperation assembly mechanically securing the plug-in connector on the terminal block, the body having a compartment accommodating a fuse element, a pair of plug contacts received within the compartment, and a handle part having an actuating portion and a linking portion. The plug contacts are each connected to a terminal of the fuse element. Each of the plug contacts has a contact tongue extending outside of the compartment, the contact tongue electrically secured to a bus bar of the terminal block. The linking portion is attached to the body and extends along a linking axis parallel to an insertion axis of a pin of the cooperation assembly. The actuating portion has an actuating surface extending transversely to the insertion axis and cooperating with a marking element disposed along the actuating surface.

A method for implementing-a wiring on a matrix of conductor connection devices such as terminal conductor connection devices for connection of the ends of a conductor to at least one series terminal block uses at least one luminous element to identify conductor connection devices which are illuminated in the matrix directly or indirectly in accordance with a wiring diagram. The conductor connection devices that are illuminated by the luminous element and that are to be interconnected are connected to conductors, the ends of which are inserted in the conductor connection devices to establish a respective conducting wiring connection.

Labeling material for marking electrical installations, comprising a top layer, the top layer having a top surface which is designed for printing and a joining surface facing away from the top surface, comprising a foam layer, comprising at least one shaped element for form-fitting attachment to a receptacle, the foam layer comprising a foamed material, the foam layer being integrally bonded to the top layer in the region of the joining surface, and the shaped element being arranged at a spacing from the top layer.

Marking profile for identifying electrical installations, comprising a marking region which has a cover surface to be labeled, comprising a support region which adjoins the marking region on the opposite side of the cover surface, comprising at least one shaped element for interlockingly securing to a receiving section, wherein the marking profile has an extruded plastic profile or consists of an extruded plastic profile and wherein the plastic profile has a constant cross-section when viewed along its longitudinal extension.

The middle section and the tail section are mounted in a wire inlet of a terminal device. The aid sleeve is formed with an internal guide hole. A wire collection section is disposed on one side of the head section distal from the middle section. A recessed guide channel is disposed on one side of the wire collection section proximal to the guide hole. The recessed guide channel includes two lateral outer arched channels with larger curvature radius. The two lateral outer arched channels gradually extend toward a middle bottom face to form an inner arched channel with smaller curvature radius. The recessed guide channel can gradually bind the forked conductor end section of a multi-strand conductive wire, whereby the wire can be quickly plugged into the guide hole.