The disclosure provides a socket that can be held at any position on rails having different width dimensions. The socket includes a housing, which can be held on a rail that has a first side part and a second side part and extends in a first direction. The housing includes a first locking part disposed on one side of the rail in a second direction to be capable of locking the first side part in a third direction; a second locking part disposed on the other side of the rail in the second direction to be capable of locking the second side part in the third direction; and a third locking part disposed between the first locking part and the second locking part in the second direction to face the first locking part to be capable of locking the first side part of the rail in the third direction.

A system comprising a plurality of functional modules connected by a bus, each functional module comprising a photo emitter and a photo receiver, to transmit photo signals between two adjacent modules. A method for addressing the functional modules, wherein a control module broadcasts respective unique addresses to the bus and a photo enquiry signal to its downstream module to trigger the latter to pick up an address. Each module provides a photo enquiry signal to its downstream module, after it has picked up an address from the bus.

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.

A contact and busbar assembly forms a bus system on electronics housings arranged in an array. An electronics assembly such as a circuit board is arranged in each housing. The contact and busbar assembly includes multiple bus plugs each having first connecting contacts for contacting a respective circuit board, second terminal contacts in the form of one or more socket contacts and power rail strips. The power rail strips have at least one flexibly deformable section or are continuously flexibly deformable. Alternatively, the socket contacts are insertable not only parallel but also obliquely in relation to the power rail strips extending in the direction of the array for contact by the socket contacts.

A contact and busbar assembly forms a bus system on electronics housings arranged in an array direction. Each housing includes a circuit board. The contact and busbar assembly includes multiple bus plugs having first connecting contacts for electrically contacting the circuit boards and second connecting contacts in the form of socket contacts for electrically contacting power rail strips. A plurality of power rail strips electrically connects the second connecting contacts of adjacent electronics housings. A first power rail strip electrically connects the bus plugs of two directly adjacent electronics housings and a second power rail strip of greater length electrically connects two spaced electronics housings. An electronics housing assembly is provided having multiple electronics housings arranged against one another in the array direction and a contact and busbar assembly as set forth above. A method for removing or replacing an electronics housing arranged between two adjacent electronics housings of such an electronics housing assembly is also provided.

An industrial input/output device with movable connector is provided. The industrial input/output device with movable connector is controlled to make the first connector provide connection or not by moving a moving link thereof. Therefore, the technical effect of preventing the interruption of the operation of the industrial input/output device can be achieved.

A clamping arrangement includes: two spring-force terminals, the two spring-force terminals each including a clamping cage and a spring, each of the two clamping cages being able to receive an electrical conductor pushed in an insertion direction and to clamp the conductor between the cage and the spring, a first insertion direction of a first of the two spring-force terminals and a second insertion direction of a second of the two spring-force terminals being arranged at an angle larger than 0 to one another. The two spring-force terminals are arranged one behind the other in one of the insertion directions of the electrical conductor. The first insertion direction of the first of the two spring-force terminals and the second insertion direction of the second of the two spring-force terminals are arranged at a right angle to one another or counter to one another.

A fork type electrical connector for use in providing an electrical joint includes a first connector part having a body that supports two spaced prongs; a second connector part including a conductive element with a first face and a second opposing face and which is shaped so as to define a rail flanked on opposing sides by respective spaces; and a pair of outer legs which extends on opposite sides of the element containing the first face from a respective outer edge of a respective space. In a position of use, the prongs extend through respective spaces in the element with the inner edges engaging the edges of the rail to provide an electrically conductive connection and the outer edge of the prongs engaging the legs to apply a force to the prongs that resists the reaction force generated between the prong and the rail.

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.

Electrical distribution systems and methods comprising a first cable-to-box connector which accepts electrical wires, a first electrical box having a first and a second coupler to connect to the cable-to-box connector; intra-box circuits built in one or more of a plurality of walls of the first electrical box and connecting the first and the second coupler; and a concavity defined by the plurality of walls of the first electrical box that receives a first electrical insert.