A conductor terminal with a busbar piece and a clamping spring. The clamping spring has a clamping limb which is oriented towards the busbar piece in order to form a clamping point for clamping an electric conductor between the clamping limb and the bus bar piece, a spring bracket which adjoins the clamping limb, and a contact limb, a vertical section of which extends transversely to the bus bar piece. The vertical section of the contact limb has a recess with edges which surround the bus bar piece. The bus bar piece has a contact wall which adjoins the wall surface of the contact limb vertical section extending transversely to the busbar piece. The wall surface lying on the vertical section side facing away from the clamping limb, and which is designed to support the vertical section of the contact limb on the contact wall by means of the wall surface facing away from the clamping limb.

A carrier rail housing comprises: a carrier rail receiving opening into which the holding legs of a carrier rail are insertable; a locking mechanism to secure the holding legs in a desired mounting position and comprising locking slides to interlock with the carrier rail housing in a locking position; a plug-in contact element arranged inside the carrier rail housing to face the carrier rail receiving opening; and a bus connector into which plug-in contacts of the plug-in contact element are insertable, the bus connector being connectable to a plug-in contact element of at least one additional carrier rail housing, wherein each of the locking slides comprises a first end that comprises a holding section that extends in sections into the carrier rail receiving opening in the locking position, so that the bus connector is secured between the holding sections of the locking slides and the plug-in contact element.

An electrical contact element for a bus element of a mounting rail bus system includes: a contact body that extends in an areal manner along an extension plane; and at least one contact leg that is arranged on the contact body and extends along the extension plane. When measured perpendicularly to the extension plane, the contact body has a first thickness and the at least one contact leg has a second thickness that is smaller than the first thickness.

A terminal block having a terminal housing, at least two electrically conductive contact elements, at least two conductor connection elements for connecting electric conductors, and at least one separating element arranged movably in the terminal housing, the separating element having a longitudinal axis and the two electrically conductive contact elements being connected in a first position of the separating element and disconnected in a second position of the separating element. A reduction of the space requirement for the separation point between the contact elements and the separating element during simple operation of the separating element is achieved by the contact elements being arranged consecutively in the longitudinal direction of the separating element; the separating element is arranged in the terminal housing to be movable in the longitudinal direction; and the movement direction of the separating element is different from the direction of the longitudinal extension of the terminal block.

A patchboard having a plurality of socket blocks (2), each of which has a box-like housing (3) with two end faces (4a, 4b) and four side faces (5a, 5b, 5c, 5d) which extend between the end faces (4a, 4b), the two end faces (4a, 4b) of the socket blocks (2) having at least one connection region (6). An increased degree of flexibility and ability to adapt to individual user requests is achieved due to each of at least two side faces (5a, 5b, 5c, 5d) of the socket blocks (2) having at least one latching element for connection to another socket block (2), and by at least one termination element (11) being arranged on at least one side of the patchboard (1), the termination element (11) having a mating latching element on at least one side face (12, 12b) for connecting the termination element to an adjacent socket block (2).

A modular I/O device includes a terminal base with a terminal block that includes a plurality of wiring connectors. An auxiliary wiring device includes a plurality of auxiliary wiring connectors and is selectively physically connectable to the terminal base in an operative position and selectively physically removable from the terminal base. The terminal block includes a receiver and the auxiliary wiring device includes a body including at least one mounting tab that projects outwardly from the body and that is located in the receiver. The receiver includes a projecting lip about which the auxiliary wiring device is pivotable relative to the receiver on a pivot axis. The terminal base includes at least one catch and the auxiliary wiring device further includes at least one latch arm that is adapted to engage the catch when the auxiliary wiring device is physically connected to said terminal base in its operative position.

A modular bus system including a support rail having a base and a longitudinal axis; at least one base module, mountable on the support rail, for electrical connection to at least one input/output functional module having a backplane printed circuit board with at least one group of at least two first electrical connectors connected thereto, for electrical connection to an electrical connector of an input/output functional module, the first electrical connectors of the group arranged one after the other along an imaginary line that extends perpendicular to the longitudinal direction of the support rail and lie in a plane in which the base of the support rail is located or which is parallel to the base; at least one input/output functional module having an electrical connector and an electronic device for communication with the modular bus system, the electrical connector of the input/output functional module configured for electrical connection to one of the electrical connectors of the base module.

Modular switchboard terminal block (10,20) for transmission of data signals (2) is provided, comprising a container (10a,20a) having, arranged inside it, a printed circuit (30) for processing the data signals, which has two opposite sides (30a,30b) in a transverse direction (Y-Y); connectors (11;21) for electrical connection to controlled/detection devices; and a rear end face provided with hook and spring means for mounting on a DIN switchboard rail (6).

Conductive assembly for switchboard terminal blocks comprising a conductor element (200) for electrically connecting together the input and output (IN/OUT) of a switchboard terminal block, and resilient means for retaining electric wires (1) comprising at least one resilient element (100) with a body (110) having a first arm (111) substantially parallel to the vertical direction (Z-Z) and a second arm (112) forming an acute internal angle with the first vertical arm (111), which arms are resiliently connected together by a curved section (113), said conductor element (200) having a substantially U-shaped form and arms (211) which extend parallel to a substantially vertical direction (Z-Z) and are situated opposite each other in the longitudinal direction (X-X), wherein the conductor element comprises a pair of shoulders (212), each extending from the base (212) parallel to the vertical direction (Z-Z) and arranged facing, at a suitable distance, a respective vertical arm (211) of the conductor element. The first arm (111) of the at least one resilient element (100) has a substantially L-shaped foot (115) comprising a lug (115b) bent in the longitudinal direction (X) outwards.

Electric switchboard terminal block having a body (310) extending in a lengthwise longitudinal direction (X-X), widthwise transverse direction (Y-Y) and heightwise vertical direction (Z-Z), and comprising a front face (310a) and lateral flanks (310b) situated opposite each other in the longitudinal direction (X-X), each flank having a first seat (320) for housing a label (30), and comprising a recess (330) with a substantially trapezium-like vertical cross-section arranged in a central position in the longitudinal direction (X-X) and having a greater base open on the front face (310a) of the terminal block and smaller base open towards the inside thereof, said recess (330) having at least one further seat (331;333) for housing at least one additional label (30).