An electronic equipment chamber is disclosed. The electronic equipment chamber has an electronic equipment chamber board on which at least one electronic component among a current sensor, a relay, and a fuse is disposed, a controller located in a center of the electronic equipment chamber board, the controller electrically connected to the electronic component and configured to control the electronic component, and a plurality of busbars electrically connected to the electronic component and disposed along an outer edge of the electronic equipment chamber board, the plurality of busbars spaced apart from the controller.

Methods, systems, and apparatuses are described for transferring power. A power transfer device may be configured to securely fit in a fuse block, fuse holder, and/or the like. The power transfer device may transfer power from a source to a load connected to the fuse block, fuse holder, and/or the like, while also isolating the power to prevent the power from backfeeding to the source. The power transfer device may be used to perform testing, measurements, and/or analysis (e.g., voltage measurements, power measurements, frequency analysis, system impedance testing, etc.).

A fused disconnect switch device includes a housing defining an interior volume, and a current path. An arc interruption assembly is located in the interior volume and includes a shell, and a conductor in electrical communication with the current path. At least one arc plate is located between the magnets and the conductor. The magnets cooperate to generate a magnetic field facilitating an interruption of a first arc between the conductor and the first side of the arc chamber and a second arc between the conductor and the second side of the arc chamber.

A high voltage power fuse having a dramatically reduced size facilitated by silicated filler material, a formed fuse element geometry, arc barrier materials and single piece terminal fabrications. Methods of manufacture are also disclosed.

A high current fusible disconnect switch device includes a switch housing configured to receive a pluggable touch-safe fuse module, and a dual slide bar actuator assembly for opening and closing switch contacts. The dual slide bar elements are each coupled to bias elements that store and release energy to affect switch opening and closing operations. The switch opening and closing operation is multi-staged wherein the only the first slider element is movable in the first stage, and both the first and second slider elements are movable in the second stage.

A high voltage power distributor comprises an insulated high voltage power cable, a fuse mechanically connected to a fuse holder and a busbar that is electrically connected between the cable and the fuse. The fuse, the fuse holder, the busbar and the cable are accommodated in a housing.

The present invention provides a fuse unit, which reduces the number of components of a bus bar and eliminates alignment of tuning fork terminals, and a method of manufacturing the fuse unit. Disclosed is a method of manufacturing a fuse unit, which includes a bus bar including a battery terminal, a fuse connection terminal, and an external connection terminal and is manufactured by integrating the bus bar and a resin covering body by insert molding. In this manufacturing method, the fuse connection terminal is constituted of an input side tuning fork terminal connected to the battery terminal and an output side tuning fork terminal connected to the external connection terminal, the input side tuning fork terminal and the output side tuning fork terminal are connected by a joining portion so as to face each other, the bus bar including the fuse connection terminal is integrated with the resin covering body by insert molding. After the insert molding, the joining portion is cut and removed through a cutting window of the resin covering body, which exposes the joining portion to the outside, and the input side tuning fork terminal and the output side tuning fork terminal are separated.

A fuse holder includes a holder base comprising a plurality of protrusions each having a mounting hole formed therein to provide for mounting of the holder base to an external component and one or more mating protrusions and one or more mating slots formed on each of opposing side surfaces. The fuse holder also includes an input stud coupled to or formed on the holder base and a cover configured to attach to the holder base to at least partially enclose one or more fuses positionable on the fuse holder. The one or more mating protrusions and the one or more mating slots formed on each of the opposing side surfaces of the holder base comprise dovetailed protrusions and slots of a matching profile capable of receiving such a dovetailed protrusion, so as to enable a side-by-side stacking and interlocking of fuse holders with such mating protrusions and mating slots.

An electrical terminal contact may include a first tuning fork terminal extendable along a first axis, and may include a first prong and a second prong both extending from a joined first end to respective distal ends. The first end may have a first curvature transitioning to extend along a second axis substantially perpendicular to the first and second prongs. A second tuning fork terminal may be extendable along the first axis, and a third prong and a fourth prong may both extend from a joined second end to respective distal ends. The second end may have a second curvature transitioning to extend along the second axis substantially perpendicular to the third and fourth prongs. The first curvature of the first end and the second curvature of the second end may offset the respective first and second tuning fork terminals from each other along the second axis.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.