A circular plug-in connector for establishing a shielded plug-in connection to a mating plug-in connector includes: a contact carrier having at least one electrical contact element; a shielding sleeve that surrounds the contact carrier at least in part; and a screw housing that is rotatably connected to the shielding sleeve and adapted to screw the circular plug-in connector to the mating plug-in connector. A connection portion of the shielding sleeve is received in a receiving space of the screw housing The circular plug-in connector provides shielded contact between the screw housing and the shielding sleeve. The shielding sleeve includes a collar in the connection portion. The circular plug-in connector further includes a stopper for closing a receiving opening of the receiving space at least in part, such that the collar is trapped in the receiving space.

A breakaway threaded fastener is provided. The fastener has a stud, a pin, and a cap. The stud has a hollow cavity with a closed end, an open end, a wall, and an outer surface. The outer surface has an external thread. The pin is in the hollow cavity. The pin has a first end at the closed end of the stud and a second end extending above the open end of the stud. The cap has another hollow cavity with a closed end, an open end, and an internal thread. The cap is threadably engaged to the open end of the stud via the internal and external threads so that the second end of the pin abuts the closed end of the cap.

Disclosed are systems for wireless energy transfer including transcutaneous energy transfer. Embodiments are disclosed for electrical connections between an implanted wireless receiver and an implanted medical device powered by the receiver. Methods for manufacturing and using the devices and system are also disclosed.

A charging connector that facilitates a routing operation of an electric cable and is unlikely to cause contact failure between a connection terminal and an electric cable is provided. The charging connector has a housing having socket portions extending along an axial direction, connection terminals accommodated in terminal receptacle portions formed radially inward of the socket portions, and a rotation regulator structure operable to regulate rotation of the connection terminals about their axes with respect to the socket portions. The connection terminal includes a plug connection portion to which a terminal of the charging plug can be connected and a terminal coupling portion located at an opposite side of the plug connection portion in the axial direction. The fixture terminal is coupled to the terminal coupling portion. The rotation regulator structure includes terminal engagement portions formed in the connection terminal and socket engagement portions formed on the socket portions.

An electrical connector is configured to couple an electrical conductor to a support surface of an electrical device. The electrical connector includes a terminal block having a connecting aperture and a threaded aperture. The connecting aperture is configured to receive the electrical conductor. The electrical connector also includes a fastener having threads receivable within the threaded aperture. The fastener is configured to move in a first rotational direction relative to the threaded aperture. The electrical connector further includes a lock configured to be positioned between the electrical conductor and the fastener to engage the electrical conductor and the fastener. Rotation of the fastener in the first rotational direction causes the lock to secure the electrical conductor against movement relative to the terminal block.

A circuit breaker system is provided that receives combined power inputs from a utility and from an alternative energy source for backfeeding to the utility through a standard breaker box without overloading the bus bars of the breaker box.

A connection arrangement of a first component on a second component, in particular for a vehicle, is provided, wherein the components are connected together by at least one screw element and at least one screw which is screwed into the screw element and passes through a first passage opening of the first component. The screw element is designed as an expansion sleeve which is partly received in a second opening of the second component and protrudes into the first component and which is expanded along the axial direction of the sleeve by screwing the screw into the expansion sleeve.

A self-aligning grounding stud arrangement (100) for a housing (120) includes a grounding stud (210) that extends from a first end (212) outside the housing (120) to a second end (214) inside the housing (120). An anti-rotation flange (230) of the grounding stud (210) is received by an anti-rotation receiver (138) of the housing (120). The grounding stud (210) includes a first attachment feature (220) positioned between the first end (212) of the grounding stud (210) and the anti-rotation flange (230) and further includes a second attachment feature (260) positioned between the second end (214) of the grounding stud (210) and the anti-rotation flange (230). The housing (120) includes at least one guide (140) for rotationally orienting the anti-rotation flange (230) with the anti-rotation receiver (138).

An electrical connection box includes a bus bar, a case to which the bus bar is fixed, a terminal that is connected to the bus bar, a fixing member that fixes a connection portion at which the terminal and the bus bar are connected to each other, and a base member that holds the fixing member. The fixing member and the base member are disposed at a position at which the fixing member and the base member overlap the connection portion of the bus bar, and when the connection portion at which the terminal and the bus bar are connected to each other is fixed, the base member moves in a direction in which the base member comes into contact with the bus bar.

An artificial lighted tree is presented with power routed through the trunk of the tree and three-wire safety grounding. The artificial lighted tree comprising a fused electrical plug having improved safety features comprising: a body portion surrounding respective first ends of a first, a second and a third electrical wire, the body portion further comprising a fuse holder embedded within an upper region of the body portion, and a fuse adapted to be releasably secured within the fuse holder via releasable securing means, a live blade in electrical communication with the first end of the first electrical wire, a neutral blade in electrical communication with the first end of the second electrical wire, a ground pin receptacle in electrical communication with the first end of the third electrical wire, wherein the body portion surrounds and maintains the live blade, neutral blade, and ground pin receptacle in spaced apart orientation corresponding to polarized sockets on an electrical wall outlet.