Abstract: An apparatus and method electrically coupling an electrostatic chuck RF filter box with a pedestal lift. The RF filter box has a contact block and at least one alignment feature on an outer mating surface of the RF filter block. The contact block includes self-aligning electrical connectors and the alignment feature is configured for aligning self-aligning electrical connectors with corresponding electrical connectors on the bracket of the pedestal lift such that the self-aligning electrical connectors and the corresponding electrical connectors on the bracket of the pedestal lift automatically mate when the contact block is mounted to the bracket of the pedestal lift.

Abstract: Examples herein disclose a power system including a power distribution unit (PDU) rack and a power module. The PDU rack is positioned in vertically in a server rack to distribute power to the power module. The power module is positioned horizontally in a server rack and includes multiple connectors. The power module is coupled perpendicularly to the PDU rack and receives power cables for delivering power to multiple servers in the server rack.

Abstract: An inverter assembly for a power system is provided. The inverter assembly includes a plurality of stackable housing members and a plurality of inverter units received within the plurality of stackable housing members. Each of the plurality of inverter units includes a filter capacitor having a plurality of auxiliary connectors extending outwardly. The inverter assembly also includes a bus bar configured to be connected to the plurality of auxiliary connectors of the filter capacitor of each of the plurality of inverter units to establish electrical connection among the plurality of inverter units.

Abstract: The invention relates to a distribution strip for distributing electrical energy for equipment, device and/or server cabinets. The distribution strip has an inner chamber which is defined by an upper, lower, two lateral side faces and two end faces. A feed cable is provided on one of the end faces. An end face forms, with a side face, an inner angle of greater than 105°.

Abstract: Fire resistant glazings having improved properties comprising a silicate based interlayer which contains from 35% to 43% by weight of water may be produced using a cast in place process. The amount of water in the interlayer is reduced by concentrating the silicate solution or by introducing silica in the form of a silica sol. Preferably a mixture of an aqueous sol and an organosol is used. Polyhydroxy compounds and saccharides may be incorporated into the interlayer to improve the properties thereof and to reduce the water content. The silicate based formulations are pourable and can be used in a cast in place production process and subsequently cured to form an optically clear interlayer.

Abstract: A system includes a power panel actuation system configured to translate a power panel within a panel connection rack. The power panel actuation system includes an input shaft and a plurality of cams coupled to the input shaft, wherein the plurality of cams is configured to engage with the power panel upon rotation of the input shaft, and the plurality of cams is configured to linearly translate the power panel within the panel connection rack.

Abstract: A circuit interconnect device racking apparatus is disclosed. The circuit interconnect device racking apparatus has a body adapted to couple to a circuit interconnect device, one or more frame connectors coupled to the body, a racking lever coupled to the body by a lever pivot, the racking lever having a cam mechanism component, and one or more bus connectors configured to connect to or disconnect from one or more bus bars responsive to rotation of the racking lever. Circuit interconnect device racking assemblies having the circuit interconnect device racking apparatus and methods of connecting circuit interconnect devices to one or more bus bars are disclosed, as are other aspects.

Abstract: A communication system is provided for a motor control center. The motor control center includes an enclosure and a plurality of subunits. The enclosure comprises a framework for dividing the enclosure into a plurality of compartments. The subunits are removably disposed within the compartments. The communication system includes a mounting bracket fixedly attached to the framework, within a corresponding one of the compartments, and a communication module mounted on the mounting bracket. The communication module includes a housing and a number of features such as, for example and without limitation, a DIP switch and electrical connector(s), disposed on the housing. Accordingly, when the subunit is removed from the compartment, the communication module remains, fixed to the enclosure framework. The mounting bracket includes a hinge that allows the communication module to pivot with respect to the compartment to provide access to the features.

Abstract: A secondary disconnect assembly is provided for a racking assembly of an electrical switching apparatus, such as a circuit breaker. The racking assembly movably couples the circuit breaker to a switchgear enclosure. The secondary disconnect assembly includes a mounting assembly having an elongated mounting member. The elongated mounting member has first and second opposing ends and first and second opposing sides. A sliding assembly is movably coupled to the first side between the first and second ends. A latching member is pivotably coupled to the sliding assembly. The latching member moves between an unlatched position corresponding to the circuit breaker being movable independently with respect to the sliding assembly, and a latched position corresponding to the latching member fixedly coupling the sliding assembly to the circuit breaker in order that the circuit breaker moves with the sliding assembly. The racking assembly may also include a position indicator.

Abstract: An electrical component housing device is provided with a housing box 21 formed with a maintenance opening 21a, a partition board 24 disposed in the housing box 21 and for separating the inside of the housing box 21, and an electrical component 25 attached to an electrical component attachment surface 24c as one of both surfaces of the partition board 24. The partition board 24 is pivotally supported by the housing box 21 around a pivot shaft 27 between a separation position where the inside of the housing box 21 is separated into an electrical component housing space S3 and a machine tool housing space S4 to face the electrical component attachment surface 24c to the electrical component housing space S3, and a maintenance position to face the electrical component attachment surface 24c to the maintenance opening 21a.

Abstract: A display apparatus that has a display screen visible from a back face or a side face of an image forming apparatus is disposed on at least one side face of an image forming apparatus case.

Abstract: A closed door circuit breaker racking extension assembly is provided which enables a circuit breaker contained within a cell of a switchgear enclosure to be racked-in or racked-out without opening the cell door and without fear of explosive gases and debris being discharged from the cell through the extension assembly of this invention in the event of an arc-fault explosion.

Abstract: This disclosure discloses a control unit comprising a plurality of controllers, each controller having a bus bar portion having: a left and a right bus bar holder; an upper and an lower common bus bar; an upper and an lower rotating bus bar; a upper and a lower connecting body; wherein each bus bar holder has protrusions forming a gap, the upper and the lower rotating bus bar are configured to be changed between a first mode that the upper and the lower rotating bus bar engages rotatably with the left bus bar holder, and a second mode that the upper and the lower rotating bus bar are tightened and secured to the left bus bar holder, and the upper and the lower rotating bus bar of one controller in the second mode is connected in close contact with the upper and the lower common bus bar of another controller.

Abstract: The invention relates to a control cabinet for a wind turbine including a cabinet body (24) defining an inner chamber (23) and having a peripheral wall (40). One or more electric circuits (19, 20, 21) are arranged in the inner chamber (23) and one or more electric energy storage modules (50) which are secured to the cabinet body (24). The energy storage modules (50) are arranged on an exterior side of the cabinet body and are detachably secured thereto.

Abstract: An electronic device includes a chassis, a power supply, and a bracket. The power supply is capable of supplying power to electronic elements secured in the chassis. A resiliently deformable latch piece is located on the power supply. A tab is located on the latch piece. The bracket is secured in the chassis and defines a slit. The slit receives the tab of the power supply so as to secure the power supply in the bracket, and the latch piece is resiliently deformable to disengage the tab from the slit to remove the power supply from the bracket.

Abstract: A heat-dissipating module suitable for dissipating heat generated by a heat-generating element is provided. The heat-dissipating module includes a first heat-conducting plate, a first heat-dissipating tube, and a fan. The first heat-conducting plate is thermally coupled to the heat-generating element. The first heat-dissipating tube has a first opening and a second opening opposite to the first opening. The first heat-conducting plate is connected to the first heat-dissipating tube and located at an outside of the first heat-dissipating tube. The fan is disposed adjacent to the first opening and corresponding to first opening. The fan is adapted for generating an air current flowing in the first heat-dissipating tube. The heat-dissipating module can transfer the heat generated by the heat-generating element during operation to an external environment.

Abstract: A chassis (300) for housing at least one cardcage (302) is disclosed. The chassis includes a first portion (420) of a chassis housing (300) through a sixth portion (460) thereof. The first through sixth portions forming a boundary around a storage region of the chassis housing (300). The chassis (300) also includes at least one air moving device (316). At least first (413) and second openings (425) are situated within the chassis housing (300). The first and (413) second openings (425) located at substantially different elevations relative to each other. A cardcage (302) is located in the storage region and situated in a skewed orientation relative to at least two of the portions of the chassis housing (300). The at least first (413) and second (425) openings and the at least one air moving device (316) are located relative to the skewed oriented cardcage (302) to facilitate airflow thereacross.

Abstract: Embodiments of a power distribution apparatus that is adaptable to be readily mounted within a variety of differing types of electronic equipment racks are herein described. One such embodiment provides power distribution apparatus having an upper mounting adapter. The upper mounting adapter may be attachable to a housing of the power distribution apparatus or may be integrally formed therein. Another embodiment provides power distribution apparatus having a lower mounting adapter. The lower mounting adapter may be attachable to the housing of the power distribution apparatus or may be integrally formed in the housing. A further embodiment provides power distribution apparatus having at least one mounting peg mounting in mating holes formed in a rack. The mounting pegs may be attachable to a housing of the power distribution apparatus or may be integrally formed therein.

Abstract: A mounting apparatus for mounting a circuit board that is electrically connectable with at least one hard disk drive, includes a chassis for receiving the circuit board, a bracket for receiving the at least one hard disk drive, and a securing member for pressing the circuit board. The bracket is mounted to the chassis. A rear end of the bracket faces the circuit board. The securing member is pivotably mounted to the bracket.

Abstract: A cabinet system comprises a chassis having a plurality of openings, a plurality of modular doors, and at least one radio frequency system. Each opening has removably attached chassis-hinge portions on one of two edges. Each modular door comprises an outside surface, an inside surface opposing the outside surface, and door-hinge receptacles on at least two edges. The door-hinge receptacles receive door-hinge portions. Each door-hinge portion is positioned in a respective door-hinge receptacle on one edge of the plurality of modular doors and is configured to mate with a respective chassis-hinge portion on the one edge of one of the plurality of openings so the mated chassis-hinge portion and door-hinge portion form a hinge to rotatably attach the modular door to the one of the openings. The radio frequency system comprises electronic components attached to the inside surface of at least one of the plurality of modular doors.

Abstract: An electronic device, for example a smoke alarm, that includes a battery carrier that includes a push to open and push to close apparatus for opening and closing the carrier. In one embodiment, the carrier is mounted so as to be pivotable between a closed position and an open position. Pivoting movement of the carrier is controlled by a double acting latch mechanism that includes at least one heart-shaped cam groove and at least one cam follower engaging with the cam groove. The carrier is a simple to access and operate to facilitate replacement of the battery. A lockout mechanism can also be provided to prevent closure of the carrier without a battery installed. In addition, a tamper resist mechanism can be provided to prevent the carrier from being opened when the carrier is at the closed position.

Abstract: A multi-processor system has a tubelike computer module including plural mother boards configured onto plural side walls of a rack body to form a unitary, continuous and non-segment airflow channel. The airflow channel of the tubelike computer module has larger space and fewer barriers to allow the airflow passing through smoothly, and to reduce wind noises or turbulences. Therefore, the system achieves optimum heat-dissipation efficiency and noise reduction by means of specific space arrangement and less cooling system requirement.

Abstract: Embodiments of a power distribution apparatus that is adaptable to be readily mounted within a variety of differing types of electronic equipment racks are herein described. One such embodiment provides power distribution apparatus having an upper mounting adapter. The upper mounting adapter may be attachable to a housing of the power distribution apparatus or may be integrally formed therein. Another embodiment provides power distribution apparatus having a lower mounting adapter. The lower mounting adapter may be attachable to the housing of the power distribution apparatus or may be integrally formed in the housing. A further embodiment provides power distribution apparatus having at least one mounting peg mounting in mating holes formed in a rack. The mounting pegs may be attachable to a housing of the power distribution apparatus or may be integrally formed therein.

Abstract: The present invention provides a securing device for securing a card to a socket within a computer is provided where the card and the socket are coupled. The device includes a unitary base member comprising a foundation portion dimensioned to receive a stationary socket and an arm portion orthogonally positioned relative to the foundation. A first engaging means is formed on at least one side of the arm member. The device also includes a clasp assembly that includes an opening for slideably receiving the arm portion of the unitary base member, a recess for receiving a non-connecting end of a card, and a second engaging means for securely engaging the first engaging means. The clasp assembly secures the card to the socket with the socket received in the foundation portion and edge of the card is received in the recess.

Abstract: Insertion and ejection mechanisms for modular boards and cards. Mechanisms are provided for coupling the motion of insertion/ejection handles coupled to a modular board or a board carrier frame to which a board is attached. The mechanisms include a single-bar linkage, a rack and pinion-based configuration, a two-bar linkage, and a telescoping configuration. Applying an input force to one of the handles causes the board to be urged inward in a chassis slot, thus coupling the connectors on the board with mating connectors on a backplane mounted within the chassis. The input force is coupled via the various handle-coupling mechanisms to the other handle, producing a result similar to if a force was applied to both handles at the same time. In a similar manner, a board may be ejected by applying a force to a single handle to cause that handle to rotate outward. An automated retention screw insertion and extraction mechanism is also disclosed.

Abstract: A mobile communication device includes a display assembly that may be extended from the housing of the mobile communication device to provide a larger display surface for displaying information to a user of the mobile communication device. The display assembly is movable between a retracted position wherein the display assembly is retracted within a cavity formed in the housing and an extended position wherein the display assembly is extended from the housing. The display assembly includes a display for displaying information to a user of the mobile communication device. A window is provided in the housing for allowing the user to view at least part of the display when the display assembly is retracted within the cavity. Information displayed by the display is mapped to the display so that the information may be viewed through the window while the display assembly is retracted within the cavity.

Abstract: In a computerized device requiring a relatively large amount of power during operation (e.g., between approximately 10 kW to 15 kW) at a relatively large current (e.g., between approximately 200 and 300 amperes), an electrical conductor or power distribution assembly having a substantially flat, planar geometry electrically couples a power supply, via bus bars, to a midplane of the computerized device. The substantially flat planar geometry of the power distribution assembly minimizes conduction and radiation of electromagnetic interference (EMI) by the electrical conductor during operation of the computerized device.

Abstract: A device retention mechanism includes a computer chassis (10) having a side panel (12) and a rear panel (14), and a retention member (30) rotatably attached to the side panel. The side and rear panels cooperatively preliminarily attaches a power supply (50) inside the computer chassis. The retention member is rotated about a pivot piece (351) in a direction to urge the power supply toward the rear panel. An engagement point between the power supply and the retention member is below the pivot piece, and the power supply exerts a torque to the retention member in the direction such that the retention member is held in place. The power supply is thus secured inside the computer chassis.

Abstract: A multi-monitor is provided with a first display device having a display screen and a second display device having a display screen smaller than the display screen of the first display device, and a supporting mechanism which is mountable on an outside portion of the first display device, and supports the second display device rotatably about a first axis and a second axis intersecting the first axis. The first second display device is driven in accordance with the same operation system as the first display device.

Abstract: A handle assembly for a network protector where the network protector includes a circuit breaker and a housing assembly, the circuit breaker having a trip bar structured to move between a first position and a second position corresponding to an open and closed position of the circuit breaker, respectively, the housing assembly having a sidewall with an opening. The handle assembly includes a linkage assembly, a shaft assembly, a handle member and locking assembly. The shaft assembly has a shaft, where the shaft rotatably is disposed in the opening and structured to move between a first and second position. The handle member has an elongated body and an elongated grip extending generally perpendicular to the handle body. The handle body is coupled to, and structured to rotate, the shaft. The locking assembly has an elongated release grip.

Abstract: According to at least one of the disclosed embodiments of the present invention, there is disclosed a rack mountable computer component which is in the form of an open computer component or blade construction which is adapted to be mounted in a generally upright or vertical disposition within a rack. The operative components such as mother boards are mounted at the front of the component or blade to permit access by the user thereto. The operative components are cooled by vertical air flow relative to the mounted blade to facilitate cooling thereof.

Abstract: A mounting mechanism for mounting a enclosure-mountable device to an equipment enclosure having a plurality of vertical mounting rails disposed so as to define an equipment storage region is disclosed. The mounting mechanism includes a first portion configured to be attached to the enclosure-mountable device, and a second portion configured to be attached to one or more of the vertical mounting rails. The first and second portions are configured such that the enclosure-mountable device may be disposed in a first position outside the equipment storage region and a second position outside the equipment storage region.

Abstract: A computer enclosure includes a body (10), and a bracket (40) for retaining a power supply (30). The body includes a rear panel, an opening (15) defined in the rear panel, a pair of opposing bent plates (16), and an engaging member (13). A supporting plate (17) is inwardly formed from each bent plate, and an L-shaped sliding slot (19) is defined in each first bent plate. The bracket includes a pair of pivots (48), a pair of cam plates (51), and a locking member (57). A smooth arcuate rim (52) extends perpendicularly inwardly from each cam plate. The pivots are movably received in the sliding slots. When the bracket is rotated about the pivots so that it can be locked within the body, the arcuate rims slide along the supporting plates of the body. The locking member then engages with the engaging member.

Abstract: A PC99 mother board includes a substrate, an input port, a LAN port with an INTERNET socket and two USBs provided under the INTERNET socket, a first connecting port mounted on the substrate via a first bracket, a first space defined between the first connector and the third connector, a second space defined between the first connector and the second connector and a second connecting port mounted on the substrate via a second bracket which has a third space defined in the second bracket. Two additional USBs are mounted in either the first or the second bracket so as to provide convenience and compatibility to the user.

Abstract: A universal support frame that holds a printed (PCB) so that both sides are accessible for processing and testing, and which provides an attachment mechanism for holding a mechanism to cool the PCB as it is being processed or tested. The universal support frame includes a base, and a first board support pivotally connected to the base. A pair of support angles are connected at their first ends to the first board support, and are connected at their second ends to a second board support. A variety of PCBs are capable of being held between the first and second board supports since the second board support is adjustable. Furthermore, both sides of a PCB may be accessed since the first board support may be rotated relative to the base. The second board support connects to a bracket for holding a cooling mechanism, such as a fan, that cools the PCB and prevents it from overheating.

Abstract: A medium voltage controller for electrical equipment, such as motors, transformers, reactors, and capacitors, having an arc resistant cabinet, swaged internal electrical connections, a one-piece self-aligning withdrawable finger cluster, a pull-out instrument compartment, a load discharge device, cast fuse holders, disconnect switch, a switch illuminator, low power current transformers, and an optical temperature measuring system. The pull-out instrument compartment includes a sliding rack to which a hinged instrument mounting panel is attached. The mounting panel slides out of the compartment and swings away from the opening in the cabinet, allowing access to the cabinet internals.

Abstract: The present invention is a power distribution assembly for distributing power about a rack mounted server system. In particular, each chassis of a rack mounted server system is provided power through a power distribution assembly that is hinged to a back of the rack of the server system. Each of the power distribution assemblies may be in either an open position or a closed position. In a closed position, each of the power distribution assemblies is rotated to lie very close to a backplane board of a chassis of the server system. In an open position, each of the power distribution assemblies is swung around so that full access may be had to the backplane boards of the chassis in the server system.

Abstract: A mounting assembly (1) for receiving an electronic device (100) includes a bracket (50) and a fastener (10) The fastener includes a retaining member (30), and a sliding member (20). A handle (45) is formed in the retaining member, and is movable relative to the retaining member. A pair of protrusions (47) each having an inner inclined plane (46) is formed in the handle. The sliding member has two opposite engaging portions (21, 28) and two central resiliently deformable spring connecting portions (24, 26). The spring connecting portions are deformably compressible, for allowing the engaging portions to engage with a computer enclosure. One of the spring connecting portions (24) has a pair of outer inclined planes (27) for abutting the corresponding inner inclined planes of the handle. Thus pushing the handle causes the engaging portions to engage with the computer enclosure.

Abstract: A door comprising a panel member having a first side and a second side and an opening therebetween; a hinge disposed adjacent to said opening; a control module; said control module hingedly attached to said panel by said hinge; said control module includes an electronic unit which has a first side; said control module being pivotable on said hinge between a first position wherein said electronic unit first side is visible through said opening from said panel first side and a second position where said electronic unit first side is visible from said panel second side.

Abstract: An electronic equipment mounting angle varying apparatus comprises a base member mounted at a place where electronic equipment is installed; a mounting member on which the electronic equipment is mounted, and which is supported by the base member so as to freely swing about a horizontal base support shaft axis; and an arm member supported by the mounting member so as to freely swing about a mounting member support shaft axis extending horizontally, which sets mounting angle of the electronic equipment by being latched by the base member, whereby the electronic equipment is mounted at a prescribed angle.

Abstract: The present invention provides for an apparatus and method for securing a computer component in a computer system. Some embodiments include single or multiple panels hinged to a chassis of the computer system. A panel of some embodiments may carry or otherwise secure components of the computer system. One such component that may be carried by a panel is a computer power supply.

Abstract: A power distribution unit adapted for mounting within an electronic system. The power distribution unit includes at least one mounting hinge that is fixedly attached to the power distribution unit housing and which is adapted to fixedly mount the power distribution unit to an enclosure of the electronic system or to an internal support or component within the electronic equipment enclosure. The mounting hinge is pivotable such that the power distribution unit can be pivoted to an extended position to facilitate removal of removable modules mounted within the electronic system.

Abstract: A system for housing telecommunications equipment includes a plurality of vertically disposed chassis, each chassis having a top that is substantially closed, two sides, two ends, and a base, wherein the top of each chassis is adapted to receive the base of an adjacent chassis. At least one vent is formed in each chassis adjacent the base for allowing air to enter the chassis, and at least one of the ends and one of the sides of the chassis are formed such that air may exit the chassis. The vent is disposed between the base and a portion of the chassis selected from the group consisting of either of the ends and either of the sides, and the vent is nonplanar in relation to that portion. More specifically, the chassis may be vertically disposed with substantially zero gap, and the vent member may be either an angled vent member or a notched vent member.

Abstract: A desktop item which comprises a body having upper and lower sides and a cover for covering the upper side. The cover is connected to the body by means of a pair of links for relative movement between a top position covering the upper body side and a bottom position lying upside-down and immediately underneath the lower body side. The desktop item includes a spring resiliently biasing the cover towards the bottom position, and a latch for holding the cover in the top position against the action of the spring. Release of the latch permits the cover to move to the bottom position under the action of the spring. The subject desktop item may be in the form of a calculator or a memo pad holder or the like.

Abstract: A power distribution unit adapted for mounting within an equipment enclosure including an inner rack. The power distribution unit includes at least one mounting hinge that is fixedly attached to the power distribution unit housing and which is adapted to fixedly mount the power distribution unit to the rack columns. The mounting hinge is pivotable such that the power distribution unit can be pivoted to an extended position to facilitate removal of removable modules of the equipment components mounted within the equipment enclosure.

Abstract: A longitudinal warewasher section, of a warewasher assembly having a plurality of warewasher sections mounted end-to-end, includes a frame and a control box pivotally mounted thereto, where the control box is pivotable from a compact, shipping orientation to an installation or operating orientation. The control box preferably includes electrical controls that have been pre-wired to the electrical and/or mechanical components of the warewasher section. When in the shipping position, the rear face of the control box lies substantially flush against a lateral end of the frame and the side face of the control box is substantially flush with the longitudinal front wall of the frame such that the control box faces outwardly from the lateral end of the frame. In this orientation, the control box does not add to the total lateral width of the warewasher section.

Abstract: A bracket support includes a chassis and a bracket movably mounted in the chassis. A locking tab is mounted on the bracket and is movable between an engaged position with the chassis and a released position with the chassis. A door is mounted on a surface of the chassis and is movable between an open position and a closed position. The door includes a tab securing slot. An arm extends from the door. The door urges the locking tab to the engaged position when the door is in the closed position. The arm moves the locking tab to the released position and partially extracts the bracket from the chassis when the door is moved to the open position. The tab securing slot secures the locking tab into the engaged position when the door is in the closed position.

Abstract: An electronic enclosure assembly having a logic chassis, a forward extension member attached to one end of the logic chassis wherein each side of the forward extension member has side pieces, each of the side pieces having a face and a notch. The enclosure further includes a removable chassis having a front side and a rearward side and sized to fit between the side pieces and slidably movable on the extension until it is engaged with the logic chassis. An activation handle having side members is pivotally attached on the sides and at front end of the removable chassis and is movable between an up position and a down position. The ends of the side members and the notches of the side pieces of the logic chassis cooperate for camming the removable chassis into engagement with the logic chassis when the activation handle is moved to its up position and for camming the removable chassis away and disengaging the removable chassis from the logic chassis when said activation handle is returned to its down position.

Abstract: A mounting arrangement for communications network base stations within a tower interior wherein each base station is secured between upper and lower platform plates by a pair of co-axial swivel mounts. The swivel mounts allow the base stations to be rotated about a vertical axis between a first angular position suitable for the base station to operate and to allow the platform to be raised and lowered and a second position in which the base station door can be fully opened to provide access to the base station interior for maintenance purposes.

Abstract: A panelboard/switchboard assembly for accommodating bolt-on modules, plug-in modules and lugs. The panelboard/switchboard includes vertical, edge forward bus bars having a plurality of openings formed therein. The edge forward alignment allows plug-in modules to be mounted to the bus bars. The openings in the bus bars receive bolts for mounting straps to the bus bars and for mounting lugs to the bus bars. The openings have a shape having at least one linear element and receive a bolt having an anti-rotation portion with a similar shape. The interference between the opening and the anti-rotation portion of the bolt prevents the straps, and the modules connected to the straps, from rotating.