A circuit structure includes: an upper case having positioning holes; bus bars that are provided in an inductor disposed in the upper case and that have through holes; terminals that are connected to electric wires and that have bolts disposed thereon that penetrate the through holes; nuts that sandwich the bus bars between the nuts and the terminals by being screwed onto the bolts; and a lower case that is attached to the upper case. The lower case includes: front walls, left walls, and right walls that project upward from the lower case and position the terminals relative to the lower case by coming into contact with the terminals; and case positioning portions that project upward from the lower case and that are inserted into the positioning holes.

An electrical assembly that includes a substrate having an aperture. A flat conductor is mounted to the substrate and extends over at least a portion of the aperture, with a ring terminal in contact with the flat conductor adjacent to the aperture. A lead wire connects to the ring terminal and is spaced from the substrate, and a fastener extends through the ring terminal and flat conductor, secured in the aperture, and securing the ring terminal against the flat conductor.

A connector includes a first terminal formed with a penetrating first fastening hole, a first housing for holding the first terminal, a second terminal connectable to an external terminal and formed with a penetrating second fastening hole, a second housing including an insulating cover portion for covering the second terminal with a part of the second terminal on the side of the first terminal exposed, the second housing holding the second terminal, a conductive relay portion disposed in a part of the second housing where the second terminal is exposed, the relay portion electrically connecting the first terminal and the second terminal, and a fastening member for fastening the first terminal, the second terminal and the relay portion with the relay portion sandwiched between the first terminal and the second terminal.

A connector includes a first terminal formed with a penetrating first fastening hole, a first housing for holding the first terminal, a second terminal connectable to an external terminal and formed with a penetrating second fastening hole, a second housing including an insulating cover portion for covering the second terminal with a part of the second terminal on the side of the first terminal exposed, the second housing holding the second terminal, a conductive relay portion disposed in a part of the second housing where the second terminal is exposed, the relay portion electrically connecting the first terminal and the second terminal, and a fastening member for fastening the first terminal, the second terminal and the relay portion with the relay portion sandwiched between the first terminal and the second terminal.

A bonding lug assembly includes a bonding lug and a set screw. The bonding lug includes a body that defines a first channel and a second channel. The first channel defines a first conductor path extending in a first direction, and the second channel defines a second conductor path extending in a second direction that is different from the first direction. The set screw is configured to selectively engage the bonding lug and retain a bonding conductor within at least one of the first channel or the second channel.

A mechanical grounding clamp includes a body, having an upper plate defining a threaded hole therethrough and having an outer surface, a lower plate spaced apart from the upper plate and having an inner surface, and a connecting plate connecting the upper plate to the lower plate, a set screw mateable with the threaded hole in the upper plate and having a proximal end and a distal end, the distal end extendable through the threaded hole of the upper plate and toward the inner surface of the lower plate. There may be a nut on the set screw for driving toward the upper plate to secure a grounding conductor to the body.

An electrical connector adapted to electrically and mechanically connect a main conductor to a bail or tap conductor includes a C-shaped frame having a curved top wall adapted to fit over a main conductor and a curved bottom wall adapted to receive a bail or tap conductor. A fastener-operated wedge assembly is carried within the frame between a conductor receiving position and a conductor clamping position. The wedge assembly has a wedge body with a primary contact surface adapted to contact the main conductor and a secondary contact surface adapted to contact the bail or tap conductor when the wedge body is moved from the conductor receiving position to the conductor clamping position. The fastener positively moves the wedge body between the positions so that the clamping action of the connector can be tightened or loosened as desired.

An electrical connector adapted to electrically and mechanically connect a main conductor to a bail or tap conductor includes a C-shaped frame having a curved top wall adapted to fit over a main conductor and a curved bottom wall adapted to receive a bail or tap conductor. A fastener-operated wedge assembly is carried within the frame between a conductor receiving position and a conductor clamping position. The wedge assembly has a wedge body with a primary contact surface adapted to contact the main conductor and a secondary contact surface adapted to contact the bail or tap conductor when the wedge body is moved from the conductor receiving position to the conductor clamping position. The fastener positively moves the wedge body between the positions so that the clamping action of the connector can be tightened or loosened as desired.

A clamping device includes: a first jaw mounted on a first support member, a second jaw mounted on a second support member, movable relative to the first support member to bring the first and second jaws toward each other in a clamping position, an actuation member adapted to move the second support member relative to the first support, and a compression member such as a spring between the actuation member and second support member. Advantageously, the first jaw is hook-shaped and the second jaw is ring-shaped. Advantageously, at least the second jaw, the compression member, and a handle of the actuation member have substantially rotational symmetry around a main axis.

A clamping device includes: a first jaw mounted on a first support member, a second jaw mounted on a second support member, movable relative to the first support member to bring the first and second jaws toward each other in a clamping position, an actuation member adapted to move the second support member relative to the first support, and a compression member such as a spring between the actuation member and second support member. Advantageously, the first jaw is hook-shaped and the second jaw is ring-shaped. Advantageously, at least the second jaw, the compression member, and a handle of the actuation member have substantially rotational symmetry around a main axis.