Power busbar system for connecting devices having at least one contact protection baseplate module for receiving elongated and electrically conductive power busbar modules each having a plurality of uniformly spaced contact openings of a contact opening array, wherein electrical connecting contacts of a device to be connected are configured to be inserted into the contact openings of the contact opening array of the electrically conductive power busbar modules for producing an electrical and mechanical connection.

A housing is configured to be fitted to a mating housing, the housing including a cylindrical hood into which a fitting protrusion of the mating housing is finable, the cylindrical hood being configured such that, when the fining protrusion is fitted into the cylindrical hood, a space between the cylindrical hood and the fitting protrusion is sealed with an annular seal member provided on the fining protrusion. The cylindrical hood includes, at a distal end of the cylindrical hood from which the housing is fitted to the mating housing, a cylindrical seal portion configured to contact, when the fitting protrusion is fined into the cylindrical hood, an edge of the mating housing continuously over an entire circumference of the edge and to cover the edge between the cylindrical seal portion and the edge.

A terminal block which can be coupled to another terminal block in an electrically connected state includes a housing, an input-side power supply terminal and an output-side power supply terminal. The housing includes a first wall portion and a second wall portion. The input-side power supply terminal and the output-side power supply terminal are arranged along the second wall portion inside the housing. The housing includes a protruding portion that functions as an obstructing member that hinders connection of the input-side power supply line to the input-side power supply terminal and a through hole that is arranged in a vicinity of the input-side power supply terminal of the second wall portion and penetrates the second wall portion in the first direction to allow insertion of the obstructing member.

An adjustable neutral bar and adjustable neutral bar assemblies are provided. The bars and bar assemblies are adjustable to a desired number of taps. The bars and bar assemblies can have mating bar ends or clips that allow for easy connection of multiple bars to one another. Additionally, the bars and bar assemblies can have shear regions that allow for easy separation of a bar at a desired location.

An adapter for a housing opening in a housing of a splice block can include an adapter body that is movably coupled to the housing and includes a conductor passage. The adapter body can be selectively movable between a closed configuration and an open configuration, in which the conductor passage is, respectively, in and out of alignment with the housing opening.

A modular power distribution assembly includes a first power module having a power input, a first aperture extending therethrough, and a first bus bar connector at the first aperture and a set of second power modules having a respective power switch, a second aperture extending therethrough, and a second bus bar connector at the aperture, wherein the first power module and the set of second power modules have an attachment interface adapted to physically secure the first power module to the set of second power modules.

A control device having a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another, is characterized in that at least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of the plug parts (22a-22c) and socket parts (24a-24c) thereof which face one another and are adjacent to one another.

A modular electrical connector system and associated method of us may include a modular electrical connector device. The device may include a primary body unit, which may be connected to a structure's electrical wiring. The primary body unit may be connectable to a modular connection unit, which may optionally be further connectable to a face unit. The device may enable electrical connection from the modular connection unit, the face unit, or both, to the structure's electrical wiring, directly or indirectly. The modular connection unit, face unit, or both, may be removably connectable to the primary body unit. The device may be connectable to one or more add-on units, enabling electrical connectivity between the add-on units and the structure's electrical wiring.

Device for a busbar system, wherein a housing of the device comprises, on one housing side, electrical connection contacts which are configured in such a way that they are passable through feed-through openings of a contact protection baseplate module of the busbar system and are insertable into uniformly spaced contact openings located below the feed-through openings of busbar modules provided inside the baseplate module for producing a direct electrical and mechanical connection to the busbar modules.

A terminal accommodating body includes a terminal accommodating chamber for each coupling terminal capable of accommodating a coupling terminal capable of being electrically connected to a terminal of an electronic component, and a terminal holding portion that holds the coupling terminal. In all the terminal accommodating chambers, in a plurality of common accommodating chambers in which the coupling terminal and one terminal portion in a one plate-like bus bar having a plurality of terminal portions electrically connectable to the terminal of the electronic component are capable of being replaced and accommodated, and a partition wall between the adjacent common accommodating chambers has an inter-chamber inserting portion into which the coupling portion is inserted in an accommodated state of the terminal portion to the common accommodating chamber, in order to accommodate a coupling portion in the common accommodating chamber.