A bonding block has a block body configured to be secured to a structure, a threaded hole extending in an axial direction, and a ground wire channel extending through the threaded hole in a direction perpendicular to the axial direction. The bonding block also has a screw assembly having a screw and a contacting element having a substantially flat first contact surface. The contacting element is rotatable relative to the screw such that the contacting element traverses axially without rotating while the screw is tightened in the threaded hole. The block body has a substantially flat second contact surface positioned at a bottom of the threaded hole and the ground wire channel. The screw assembly compresses a ground wire extending through the ground wire channel between the first contact surface and the second contact surface as the screw is tightened in the threaded hole.

The invention relates to an insulation body (1) for an electrical connector unit (10, 10) with at least two insertion channels (11A, 11B, 11C, . . . ) into each of which a contact pin (5) or a contact bush (7) can be inserted, which preferably are aligned parallel to a main axis (x) of the insulating body (1) into which a securing channel (12A; 12B; 12C; . . . ) empties, preferably perpendicular to it, in which a set screw (6) is supported so as to turn, by means of which the related contact pin (5) or the related contact bush (7) can be mechanically impinged on, and to which an insulating collar (13A; 13B; 13C; . . . ) is assigned, which is arranged on the outer side of the insulating body (1), at least approximately coaxial to the related securing channel (11A; 11B; 11C, . . . . According to the invention, preferably each of the insulating collars (13A; 13B; 13C; . . . ) has at least one collar opening (131A, 131B, 131C, . . . ) that is limited on both sides by collar ends (132).

Grounding clamps having a movable jaw driven by a threaded rod having multi-start threads which exhibit improved clamping speed. The use of multi-start threads allows for a threaded rod having a larger pitch to produce greater linear travel with each revolution of the rod thereby reducing the time required to tighten the clamp.

A threadless grounding bushing for placement on an end of an EMT or rigid electrical conduit has a bushing body with a first portion with an inner smooth cylindrical surface dimensioned for receipt of a rigid conduit; a second portion with a central bore for the passage of conductors therethrough, the second portion dimensioned to form a stop relative to a terminating end of a rigid conduit or EMT received in the first portion; at least one set screw that extends through the first portion to make contact with the EMT or rigid conduit; a lug secured to the bushing body having an opening to secure a ground conductor thereto; and a removable spacer with an inner surface corresponding to the outer surface of an EMT and having an outer surface corresponding to the inner smooth cylindrical surface of the first portion of the bushing body.

An installation switching device includes: a housing; and at least one contact clamp, which is arranged in the housing, for connecting at least one electrical conductor through a conductor insertion opening that is provided in the housing, the contact clamp including a clamping frame that has a rectangular cross section and a clamping screw that engages in a first narrow end side of the clamping frame and a clamping end of the clamping screw being cooperating with a section of a contact rail that is fixedly mounted in the housing of the installation switching device, the section being located within the clamping frame, so that a second narrow end side that lies opposite the first narrow end side and is connected thereto via two longitudinal sides that lie opposite one another presses an inserted connecting conductor against a surface of the contact rail that is remote from the clamping screw.

A torque limited screw is used to secure a conductor to an electrical connector. The screw has a torque limiting feature between a head and a body of the screw which must be overcome by force to break the head free from the screw body. The screw assembly includes a threaded body configured to be releasably coupled to a coupling portion of the connector. A head of the screw assembly is joined to the body via a neck portion which under a specified torque applied to the head fractures to break the head away from the body seated in the connector and securing the conductor. In one embodiment, the screw includes a plate spaced from and coupled to the threaded body for contacting the conductor. The plate is rotatable relative to the threaded body when the threaded body is coupled to the coupling portion of the connector.

An electrical device includes a case defining an interior space. The case includes a sidewall and a cover. The sidewall defines an opening therethrough to provide access to the interior space. The electrical device also includes a power connector coupled to the case and disposed at least partially within the interior space. The power connector is coupleable to a cable extending through the opening into the interior space of the case. The electrical device further includes a shield removably coupleable to the case. The shield includes an engagement feature and a wall. The engagement feature is arranged to engage the case. The wall is arranged to at least partially cover the opening when the shield is coupled to the case such that the wall and the cable are spaced apart a distance that is less than a width of the opening when the cable is coupled to the power connector.

An electrical transmission line repair device including a first conductor clamp, a second conductor clamp and at least one tie rail extending between the first and second conductor clamps in a spaced apart orientation. The first conductor clamp including a lower assembly and an upper assembly. The lower assembly and the upper assembly are slidably engageable with each other so as to define a conductor cavity extending therealong. Clamping fasteners are configured to extend through openings in the upper assembly so as to be threadable toward and away from the conductor contact region of the lower assembly within the conductor cavity.

An electrical transmission line repair device including a first conductor clamp, a second conductor clamp and at least one tie rail extending between the first and second conductor clamps in a spaced apart orientation. The first conductor clamp including a lower assembly and an upper assembly. The lower assembly and the upper assembly are slidably engageable with each other so as to define a conductor cavity extending therealong. Clamping fasteners are configured to extend through openings in the upper assembly so as to be threadable toward and away from the conductor contact region of the lower assembly within the conductor cavity.

An electrical connector includes an electrically conductive connector having a mechanical connector for removably receiving a conductor. The mechanical connector includes a translatable clamping member and a threaded portion. An arm extends from the electrically conductive connector. A component is connected to the arm at an interface. The interface includes an exothermic weld.