Abstract: A power transfer device adapted for interconnection with the electrical system of a building includes a cabinet, a set of switches mounted to the cabinet, and a first set of wires for connecting the switches to an electrical distribution panel associated with the building electrical system. The power transfer device includes a terminal compartment associated with the cabinet, a set of power input terminals located within the terminal compartment, and a cover removably connected to the cabinet for alternatively preventing and permitting access to the terminal compartment. The cover is provided with an optional power input and meter arrangement adapted to be interconnected with the power input terminals for selectively supplying and measuring levels of power provided from a source of auxiliary power connected to the power input terminals.

Abstract: A support and electrical power supply device comprises a mounting plate supporting an electrical switchgear apparatus and housing branch conductors extending perpendicularly to a busbar. The branch conductors present identical lengths. The connection strips are arranged close to the opposite terminal parts of the branch conductors and comprise orifices arranged symmetrically with respect to the horizontal midplane of the mounting plate to enable fitting of the connection parts with the lineside terminals or the loadside terminals of the switchgear apparatus. Two connection possibilities of the switchgear apparatus are possible at the time of installation to achieve a lineside or a loadside power supply. The same mounting plate can also be used for supply of a single switchgear apparatus or of two switchgear apparatuses with opposite feeders.

Abstract: An operation shaft receiving-type electric component capable of reducing the number of parts required therefor and preventing generation of noise. An electric component body which includes an electric component unit varied in electric properties due to a variation in rotation angle of the operation shaft is arranged between an operation section of an operation shaft and a mechanism unit. A push-type lock and release mechanism is constituted by a guide member held stationary, both a slider member and a rotary slider each rotatably fitted on the operation shaft, a spring holder and a spring member. The guide member is provided with a plurality of primary guide grooves and secondary guide grooves, in which projections of the slide member are fitted, respectively. The rotary slider is provided with a plurality of projections, which are fitted in the main guide grooves, respectively.

Abstract: An enclosure for an external terminal of a circuit breaker on an electrical panelboard, which includes a body and a cover. The body defines an aperture for inserting an electrical load conductor and is securable adjacent a circuit breaker. The cover is mounted to the body for movement between a first position and a second position. In the first position the terminal is exposed. In the second position the body, the circuit breaker and the cover jointly enclose the terminal.

Abstract: A circuit breaker panelboard enclosure is adapted to receive circuit breaker covers that are attached to the interior or circuit breaker module without requiring attachment screws and the like. The circuit breaker modules within the enclosure are equipped with electrically-insulative extension clips that are received and retained within apertures formed in the circuit breaker covers in press-fit relation. The circuit breaker covers are removed by grasping the ends of the circuit breaker covers and pulling the circuit breaker covers away from the enclosure.

Abstract: An electrical distribution panel with quick change electrical outlets includes an elongated housing frame having multiple sides, a plurality of divider panels secured at different spaced levels in said elongated housing frame to form separated volumetric spaces therein. A plurality of openings are formed in said frame member at each of the volumetric spaces on at least two sides thereof. Main breaker means is provided at one of said different spaced levels, and a main distribution BUS means extends through divider panels and has means for connecting wires thereto through said openings which is accessible through the openings by an external bladed tool from said at lest two sides. A plurality of interchangeable receptacle mounting modules, each mounting module being adapted to be mounted within one of the openings, respectively, and connected by wires to the main BUS means by said bladed tool externally of said housing. Plates for covering the remaining of said openings.

Abstract: A circuit breaker mounting bracket is comprised of a generally upright support member, a base member extending generally perpendicularly from a bottom of the support member, a flange depending from a distal end of the base member at an angle less than 90.degree., and a brace member depending obliquely from the back of the support member. The flange is adapted to be secured to a support surface, such as a deck within an air conditioning or furnace cabinet. The brace member and the flange cooperate to maintain the bracket in a rigid, upright position within the cabinet. The bracket includes a din rail comprising two generally L-shaped flanges integrally formed with the support member, whereby one or more circuit breakers are mountable in a fixed position relative to the bracket. A C-shaped channel is formed on the support member between the L-shaped flanges for receiving two retaining members, which inhibit lateral movement of the circuit breaker(s) mounted on the bracket.

Abstract: A docking adapter includes a male HDI 30 type connector (for connecting to a "POWERBOOK" portable computer) and a female DB 25 type connector (for connecting via a SCSI bus cable to either a "MACINTOSH" personal computer or a SCSI external hard drive). The pins of the HDI type connector are electrically connected to the corresponding pins of the DB type connector. The adapter includes a switch having an actuated position for grounding pin 1 of the HDI type connector to "dock" the portable computer in a disk operating mode facilitating data transfer with the "MACINTOSH" over the SCSI bus. When not in the actuated position, the portable computer may be connected to and access the external hard drive over the SCSI bus. The adapter also includes a light emitting diode (LED) connected between the termination power pins of the DB and HDI connectors and ground to monitor for the presence of termination power on the SCSI bus.

Abstract: A modular switching-element block which comprises at least one base body having plug-in locations for switching elements, such as electrical switches, and is fitted with a base body which is split into a plurality of base-body modules which can be plugged into one another. In comparison with a common base body, this arrangement makes possible greater variability of the number of plug-in locations, with respect to freely selectable special fits with switching elements, and reduces the advance-provision cost for a standard fit.