Abstract: The present invention provides a switch mechanism module and a line base module, useable separately or in combination, for an interior assembly of an electrical distribution device having a plurality of modules. The electrical distribution device has an enclosure with a handle external to the enclosure for operator control. The switch mechanism module and line base module include a modular housing having a generally planar base with upstanding side walls around the circumference of the base. The side walls have a top edge defining a mating surface. The modular housing is demountably secured to at least one adjacent module with a manually operated securement which is integrally formed with the modular housing.

Abstract: In a fusible link connection box, a pair of through holes through which terminal legs of a large male fusible link are to be respectively passed are opened in the bottom of a rectangular cup-like portion which is disposed in the upper portion of the base body, and a pair of terminal pieces to which a small female fusible link is to be connected are disposed within the through holes. The terminal pieces protrude from the upper ends of bus bars which are fastened together with lead wire terminals to terminal nuts which are attached to the sides of a center wall. The center wall vertically downward elongates from the bottom.

Abstract: Fuses for the potential transformers (PTs) in medium voltage switchgear are mounted in fuse assemblies which are reciprocated within the switchgear enclosure independently of the transformers they protect between a connected position in which the fuse assemblies engage stabs at the rear wall of the enclosure and a retracted position adjacent a door at the front of the enclosure through which the fuses are inserted and removed while the fuse assemblies remain within the enclosure. The fuse assemblies include insulative tubes having first releasable contacts at a distal end which engage the stabs and second releasable contacts which engage fixed contacts connected to the transformers and spaced from the rear wall. The insulative tubes are mounted on a carriage which reciprocates between the connected and retracted positions. An interlock prevents opening of the door except where the carriage is in the retracted position and blocks movement of the carriage with the door open.

Abstract: A fuse structure is described in which a metallic frame is inserted between the insulation layers, through which the fuse window passes, and the final passivation layer. This frame is used as a mask during fuse window formation so alignment is simplified and problems arising from the presence of insulating residues on the surface of the fuse window layer are avoided.

Abstract: A fuse-box which is reduced in size and which is designed so that the electric cable extends straight from the fuse-box. In the box body (21), a fuse-receiving portion (3) is provided in an upper surface of the box body (21) and electric-cable-end receiving portions (10) are produced in a lower surface of the box body (21). Further, screwing opening portions (8) are provided in opposite sides of the box body (21) so that a round terminal (17), connected to an electric cable (16) and disposed in the electric-cable-end receiving portion (10), is fixedly tightened to a screw-driven terminal (7) of the fuse (2) in the fuse-receiving portion (3) by a screw member (18). Further, an electric cable-fixing member (32) is provided so as to extend down from the box body (21) so that the electric cable (16), attached to the electric-cable-end receiving portion (10), is fixed vertically along the electric cable-fixing member (32).

Abstract: A fuse including a fusible link element having a pair of terminal portions and a fusible portion through which the terminal portions are connected to each other, the terminal portions having upward locking pieces at upper corners thereof, a housing for receiving the fusible link element, having stepped recesses between inner and outer walls thereof in which end portions of the upward locking pieces are fitted when the upward locking pieces are bent inwardly, and a housing cover for closing an open end of the housing, having legs which are extended towards the housing so that the legs are abutted against the end portions of the upward locking pieces when the cover is fitted to the housing, lower ends of the legs having taper surfaces brought into contact with the outer sides of the upward locking pieces.

Abstract: A miniature female fuse includes a casing; a pair of clips inside the casing; and a fusible link electrically connecting the clips, the fusible link being constructed from a low temperature melting alloy such as Pb(82)/Sb(18), Sn(96.5)/Ag(3.5), or Au(80)/Sn(20).

Abstract: A fuse includes a tube, a pair of blade terminals projecting from opposite ends of the tube, at least one fuse element disposed in the tube and electrically coupled between the terminals, and a pair of metallic end caps disposed on opposite ends of the tube. Electrically insulative elements are disposed between the end caps and the terminals. The tube is filled with an arc-quenching material inserted through a fill hole that is plugged by a plastic drive rivet. Each terminal is attached to a metallic end plate by means of a staking tang inserted into a slot of the end plate, and by means of a separate solder joint. Each insulative element includes an axial sleeve through which a respective terminal extends for a part of its length. The fuse element having a one-piece metal element bent to form a pair of parallel, superimposed strips divided into sections by means of fusible weak points.

Abstract: A chip fuse is disclosed which includes a hollow insulating body and a fusible element extending through the body the respective ends thereof being engaged with end portions of the body. Two terminals are fitted onto the end portions of the body. Each terminal includes a projection for fixing the terminal to the end portion of the body. The body may include two grooves into which respective projections are fitted.

Abstract: A low-exhaust composite drop-out assembly is provided that is utilizable in a standard cutout mounting in electrical power distribution systems. The composite drop-out assembly includes current-limiting and low-current clearing sections and is easily removable from mounting for servicing. The sections are efficiently arranged in a side by side configuration.. The low-current clearing section includes a fuse-robe assembly having a replaceable fuse cartridge. Accordingly, the low-current clearing section is simply and economically renewable for reuse whether or not the current-limiting section has operated. Further, the current-limiting section need not be replaced if only the low-current clearing section operated in response to overcurrent in a low range. Additionally, the sections are separable so that the low-current clearing section can be reused after simple refusing even when the current-limiting section has operated.

Abstract: A female fuse assembly has a fuse housing, and first and second fuse-link terminals. Each fuse-link terminal includes a clip-receiving portion, and first and second clip abutments. The female fuse assembly also includes a fuse link connected between the first and second fuse-link terminals. The first and second female clips each include a clip body for operative engagement with the respective first and second fuse-link terminals. The first and second clips each also including first and second arm-connecting extensions, and first and second arms. The first and second arm-connecting extensions of the first clip are engaged with the respective first and second clip abutments of the first and second fuse-link terminals. The first and second arms of each first and second clip each have a first and a second branch.

Abstract: An electrical junction box for use in a vehicle is capable of receiving a plurality of fuses of the type having a body and a pair of blades extending from the body. The junction box includes a body portion with a plurality of parallel slots adapted to receive a fuse blade. A substantially rectangular aperture receives a second fuse blade from one side of the junction box and an electrical connector from the other side. A plurality of resilient locking arms extend from the body portion and are arranged such that pairs of locking arms are located on opposite sides of the lateral opening of the aperture and define fuse mounting locations. Each locking arm has an inner surface from which a pair of parallel guide rails extend to form a fuse receiving channel, and a lock projection extends form the inner surface between the guide rails to secure the fuse within the junction box. A fuse puller is used to remove fuses form their positions between the locking arms.

Abstract: A chip fuse is disclosed which includes a hollow insulating body and a fusible element extending through the body, the respective ends thereof being engaged with end portions of the body. Two terminals are fitted onto the end portions of the body. Each terminal includes a projection for fixing the terminal to the end portion of the body. The body may include two grooves into which respective projections are fitted.

Abstract: A fuse connection structure which is capable of receiving and retaining standard fuses when dark current fuses are not used, in such a manner that the standard fuses are protected from external forces and are positively held in position. The fuse connection structure includes a fuse holder (1) having dark current fuses (8) mounted therein, and a fuse block body (7) to which the fuse holder can be attached, the fuse block body having connection terminals. The fuse holder (1) includes a dark current fuse insertion portion (5) holding widthwise opposite ends of the dark current fuses, a cover portion (6) provided outside of the fuse insertion portion, and ribs (2) and (3) interconnecting the fuse insertion portion and the cover portion. The fuse block body (7) has relief portions (16) for the ribs (2) and (3). The ribs (2) and (3) extend in a direction of a thickness of the dark current fuse relative to the dark fuse insertion portion (5).

Abstract: A female fuse having a one piece fuse link and thermal mass injection molded around a multifinger fuse clips. The fuse link, thermal mass, and fuse clip are enclosed in an insulating housing. The resulting fuse is smaller in size and operates at a cooler temperature than other fuses.

Abstract: A disconnection mechanism for a dark current fuse provides a connecting terminal connecting the dark current fuse, a fuse block body receiving the connecting terminal, and a fuse holder slidably engaged with the fuse block body in a direction of connecting the dark current fuse, the fuse holder provides a cutaway opening exposing a head of the dark current fuse being therein, an engaging projection disposed at an opening edge of the cutaway opening for engaging the head, and a supporting wall portion contacting a trunk of the dark current fuse. The disconnection mechanism is not necessary to store the extracted dark current fuse after a dark current fuse circuit is opened, so that there arises no possibility of missing the extracted dark current fuse, the dark current fuse can be extracted by using a puller, and the dark current fuse is surely held and prevented from slipping off.

Abstract: A high-voltage fuse box comprising: a box body; at least one first connection plate which is electrically conductive and is secured to the box body; at least one second connection plate which is electrically conductive and is secured to the box body: a plate fuse which has opposite fixing terminals such that the fixing terminals are fixed to one end portion of the first connection plate and one end portion of the second connection plate with machine screws, respectively; a first electric wire which has a first terminal; and a second electric wire which has a second terminal such that the first and second terminals are fixed to the other end portion of the first connection plate and the other end portion of the second connection plate with machine screws, respectively.

Abstract: A fuse holder (2) for use in electrical apparatus includes a tubular body (6) having outer and inner ends (10, 16). A first electrical contact element (22) and a mounting flange (8) are secured to the inner and outer ends, preferably using resilient retaining rings (53, 68) engaging circular grooves (52, 20; 62, 20) formed in the opposed surfaces. A tubular second electrical contact element (32) is secured within the tubular body and preferably has a flexible electrical terminal strap (24) which extends out through an opening (23) formed in the tubular body. Fluid-tight seals are provided between the inner surface (14) of the tubular body and the outer surfaces (46, 58, 30) of the first and second electrical contact elements and the mounting flange assembly by using pairs of O-rings (38, 50 and 70); an adhesive (39) is also used to secure these elements to the body.

Abstract: A holder is provided for a cylindrical electrical safety fuse having conductive end caps. A hollow housing receives the fuse therein through a front side which is closeable with a closure cap. A compression spring at a back end of the housing biases the fuse against a conductive metal inner cap disposed interiorly of the end cap. The inner cap has a radially extending contact tab. A terminal pin is provided to conductively engage the contact tab. The terminal pin has a contact portion with a perpendicularly-extending base, a cantilevered front leg extending from and overlying the base, and a cantilevered spring leg extending from a second end of the base so that the spring leg is disposed intermediately between the front leg and the base and also overlies the base. A clamp slot is defined between the front leg and the spring leg to form an electrical contact with the contact tab.

Abstract: A disconnection mechanism for a dark current fuse provides a connecting terminal connecting the dark current fuse, a fuse block body receiving the connecting terminal, and a fuse holder slidably engaged with the fuse block body in a direction of connecting the dark current fuse, the fuse holder provides a cutaway opening exposing a head of the dark current fuse being therein, an engaging projection disposed at an opening edge of the cutaway opening for engaging the head, and a supporting wall portion contacting a trunk of the dark current fuse. The disconnection mechanism is not necessary to store the extracted dark current fuse after a dark current fuse circuit is opened, so that there arises no possibility of missing the extracted dark current fuse, the dark current fuse can be extracted by using a puller, and the dark current fuse is surely held and prevented from slipping off.

Abstract: A fuse box for distributing current derived from a battery through a plurality of fuses, includes a main power source box to be connected to the battery, a sub-power source box to be integrated with the main power source box, mechanical coupling for mechanically coupling the main power source box with the sub-power source box, and electrical coupling for electrically coupling the main power source box with the sub-power source box.

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.

Abstract: A fuse that includes an insulative housing made from two housing pieces made of thermoplastic material, terminals extending through slots in the ends of the housing, and a fusible element having ends connected to both of the terminals.

Abstract: An object of the present invention is to provide a connection box for plural kinds of fusible links each having different dimensions wherein the connection box is constructed in such a manner as to allow the respective fusible links to be firmly fitted to the connection box with excellent stability. The connection box for plural kinds of fusible links is integrally molded of a heat-resisting synthetic resin and includes a horizontal box-shaped portion and a vertical wall portion as essential components. An opposing pair of common slots are formed through a bottom wall of the horizontal box-shaped portion while extending not only in parallel with each other but also in parallel with the opposite side walls defining a peripheral wall of the horizontal box-shaped portion. The interior of the peripheral wall is stepwise recessed so an to enable plural kinds of fusible links each having different dimensions to be received therein.

Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.

Abstract: Disclosed is an electronic part having a safeguard function for protecting the associated electronic equipment against abnormally high voltages such as lightning surge voltage. It is equipped with an element which cuts off any continuous excess current so as to prevent the surge absorbing element and the protected circuit from being spontaneously ignited. This electronic part having a safeguard function comprises: a surge absorbing element (1); a low-melting-point metal element (23) which is electrically connected in series with said surge absorbing element (1) and which is held in contact with said surge absorbing element (1) in such a manner as to allow a satisfactory heat conduction therebetween; and a thermocontractive insulating tube (25) which covers over the periphery of said surge absorbing element (1) and the periphery of said low-melting-point metal element (23).

Abstract: Fuse holder apparatus comprising, in combination a base; fuse carrying means on the base, including a first fuse end receiver to receive one end of the fuse, and a second fuse end receiver to receive the other end of the fuse, the second receiver being movable toward and away from the first receiver; and a displaceable ratchet carried on the base to hold the second receiver in an advanced position in which the fuse ends are received by the receivers, and to enable release of the fuse, for replacement, in response to displacement of the ratchet in conjunction with retraction of the second receiver away from the first receiver.

Abstract: A fuse block, particularly for printed circuits, consists of a small block of insulating material, having a "U" shape, to whose wings are locked two equal terminals, provided at the bottom with a coupling for printed circuit and at the top with two prongs designed to receive a head of a fuse, restrained by a small frame. From the small frame extend two wings shaped in such a way as to allow the easy insertion between themselves of the fuse and the subsequent elastic restraint of the fuse.

Abstract: This support is for mounting on structure of electrical apparatus a fuse or other device that comprises a cylindrical tube. The support comprises a base adapted to be secured to said structure, the base having a length and a width dimension. Two legs project laterally from the base at its longitudinally-opposite ends, each leg comprising a body portion that has a proximate end and a distal end. The base and the legs are of rigid polymeric insulating material, and the body portion of each leg is integrally joined to the base at the proximate end of the body portion. At its distal end the body portion of each leg carries a flange that projects from the body portion longitudinally with respect to the base. Each flange has a concave arcuate surface facing away from the base that is adapted to receive a portion of the above cylindrical tube. The arcuate surface includes a first curved portion for receiving a relatively large diameter tube and another curved portion for receiving a relatively small diameter tube.

Abstract: A chip fuse is disclosed which includes a rectangular parallelepiped box shaped main body with an opening on the upper side thereof, and a cover covering the opening. Two main terminals are disposed on opposite shorter side walls of the main body. A plurality of subsidiary terminals are located along inner faces of the opposite longer walls of the main body. A fusible element is extended, inside the main body, between one of the main terminals via a some or all of the plurality of subsidiary terminals and the other of the main terminals in a zigzag manner.

Abstract: Improved arc-suppressing fuse tubes of the type used in electrical cutouts is provided which includes a fluid epoxy resin matrix core designed, upon experiencing high temperature arcing conditions, to generate sufficient moisture and arc-suppressing gases to safely and efficiently interrupt an arc. The fuse tubes of the invention completely eliminate the use of expensive and difficult to fabricate bone fiber conventionally used in fuse tubes of this type. The preferred fuse tube construction is an integrated, synthetic resin body having an outer tubular shell including an epoxy fiberglass-reinforced synthetic resin matrix, together with an inner tubular arc-suppressing core having an epoxy resin matrix with respective quantities of an organic fiber and an inorganic filler therein. An anhydride curing agent for the epoxy is incorporated at an anhydride to epoxide ratio from about 1.0 to 1.4:1.

Abstract: A water resistant fuse holder for receiving a fuse of the plastic body type. The fuse holder includes a fuse body including a housing for retaining a pair of terminal elements for receiving the terminal legs of the fuse. The housing has an upper wall and a mouth extending from the upper wall and defining a cavity opening onto the leg-receiving ends of the terminal elements. The mouth terminates in an engagement surface and the mouth further includes a peripheral outer rim located adjacent the engagement surface. The fuse holder also includes a cap of resilient insulative material including a side wall defining a recess for receiving the mouth and the fuse body. The side wall has an internal ledge encompassing the recess and having an abutment surface for entering into substantially full surface engagement with the engagement surface of the mouth. The side wall further has an internal rib encompassing the recess and positioned between the ledge and the base surface of the cap.

Abstract: A surface mountable leadless fuse generally includes a tubular fuse sub-assembly with an insulating body molded thereto in intimate sealing relation. The tubular fuse sub-assembly includes a nonconductive tubular housing, cup-shaped metal end caps enclosing the housing. The insulating body includes an upper and lower portion which are integral as molded. The end caps protrude from a bottom surface of the insulating body so that the fuse can engage the flat conductive areas of a circuit board for soldering thereto without obstructiion of the insulting body. The end caps also protrude from the end surfaces so that visual inspection and solder wetting are unobstructed. The lower portion of the insulating body covers an exposed portion of the tubular housing. A pair of anti-rolling legs depend from opposed margins of the bottom surface to prevent the fuse from rolling off of the circuit board once placed there.

Abstract: A fuse cover includes a transparent resilient cylindrical member, having a full length axially extending slot therein. Two pairs of recesses are provided in the slot for engaging a pair of fuse clips mounted to a circuit board and holding a fuse there between. The tubular member has opposite open ends for ventilation and can be installed over and removed from a fuse without tools and without disturbing the mounting of the fuse.

Abstract: A rain shield for a circuit-interrupting device is provided that includes a housing for attachment to the circuit interrupter adjacent an exhaust outlet of the circuit interrupter. The rain shield prevents the ingress of moisture while providing a path for the exhaust gases of the circuit interrupter. The rain shield is selectively attachable to the circuit interrupter and is reusable. In one arrangement, the rain shield includes a housing which is generally cylindrical and has an inlet opening at a first end for cooperation with the exhaust outlet of the circuit interrupter. At a second opposite end of the housing, an outlet is defined that includes a predetermined pattern of openings. A centrally disposed plate is provided adjacent the outlet and functions as a drip cap such that moisture in the form of precipitation that enters the outlet of the rain shield is prevented from entering the inlet opening adjacent the circuit interrupter.

Abstract: An improved electrical fuse having axial leads (5) and comprising a fuse wire in a cylindrical sleeve (2) supported at its ends by lead carrying end caps (3) is coated over the length of the fuse body by an insulating layer of thermo-plastic (7). Improved humidity resistance and mechanical strength are achieved and control of coating thickness is improved. Use of hot plastic for the insulating layer (7) reflows solder joint (4) reducing instances of open or high resistance fuses which must be rejected. Also, the I.sup.2 t performance is significantly improved over other adherent coatings.

Abstract: A fuse cover includes a transparent resilient cylindrical member, having a full length axially extending slot therein. Two pairs of recesses are provided in the slot for engaging a pair of fuse clips mounted to a circuit board and holding a fuse there between. The tubular member has opposite open ends for ventilation and can be installed over and removed from a fuse without tools and without disturbing the mounting of the fuse.

Abstract: A drawout fuseholder 10 is made, containing two electrically conductive contacts 11 and 12 and having an insulating tube 13 connected thereto and disposed therebetween, where the tube tube has a smooth, hard inner surface 15 and outer surface 16 of glass free cycloaliphatic epoxy resin and a central glass fiber member 14 impregnated with cycloaliphatic epoxy resin, where a metallic fuse element is connected to the contacts through the interior of the tube.

Abstract: A fuse assembly in which a molded cover is affixed over a standard tubular fuse. The cover is specially configured to allow the caps of the fuse to be surface mounted to solder points on a printed circuit board. The cover includes a pair of ears which contact the surface of the printed circuit board to prevent the assembly from rolling laterally. The cover has a flat face which may be printed to identify the fuse.

Abstract: A fuse assembly includes a housing having a base, side and end walls and a removable cover. Studs extend through the base and a current limiting fuse is connected between the studs. The cover, which has an edge gasket, is held against the side and end walls by fasteners which extend through the cover and threadedly engage the studs, the fasteners having enlarged heads to press against the outer surface of the cover and hold it firmly in place, forming a sealed interior chamber for the fuse. A locking filament inhibits unscrewing the fasteners.

Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.

Abstract: An electrical component has a plurality of paired contacts with spaced inner contact sections bridged by a fuse element. The paired contacts have outer contact sections enabling mounting to a circuit panel to complete circuit paths thereon. The component is used as a fuse component to protect the circuit panel by preventing overload of a circuit path by the respective fuse element. When the circuit paths have different design in-service currents and different levels of excessive electrical currents, the corresponding fuse elements can have correspondingly different in-service current-carrying capabilities and different melting points, in the same component. The component can be surface mountable and can have DIP configuration.

Abstract: An electrical plug which has a spring-loaded contact connecting electrically to a first conducting strip acting as an anode and a second conducting strip acting as a cathode. Both the first and second conducting strips have sharp projections which penetrate into conducting wires to contact the conductor therein. The cathode conducting strip has a resilient ridge projecting therefrom to contact the negative polarity of the electricity system of automobiles, thus keeping the plug from dropping out of the socket. If necessary, a fuse is provided between the anode conducting strip and the spring to limit electrical current and protect the plug. The manufacturer has the choice of whether or not to use a fuse in accordance with the different requirements of different electrical appliances.

Abstract: An electrical component has a plurality of paired contacts with spaced inner contact sections bridged by a fuse element. The paired contacts have outer contact sections enabling mounting to a circuit panel to complete circuit paths thereon. The component can be used as a shunt for programming the circuit panel by programming the component prior to in-service use of the panel, by the method of deliberately opening the respective fuse element between one or more selected pairs of contacts by an electrical programming current thereon, leaving other fuse elements intact for in-service path connection of their respective circuit paths. The component can be surface mountable and can have DIP configuration.

Abstract: A miniature electrical fuse designed for at least 60 volt circuit applications in printed circuit application features protection against housing explosion under fuse blowing conditions by means of arc barrier-forming shroud members formed by confronting rigid arc barrier walls of base and cover members between which end terminals of the fuse are sandwiched. The walls form arc barriers which closely confront or contact the fuse wire on all four sides thereof ahead of the points where the fuse wire ends are connected to the terminals. These points of connection are advantageously out of alignment with the rest of the fuse wire. The terminals preferably extend from the confronting ends of the base and cover members where projections from the cover bearing on the terminals secure the terminals in place and seal the openings thereat.

Abstract: A miniature fuse suitable for printed circuit applications and a manufacturing method therefor features preferably a generally rectangular elongated insulating body having a fuse element preferably diagonally disposed in a fuse cavity therein and terminals preferably insert molded therein and extending preferably from the opposite ends thereof. The cavity preferably opens onto opposite longitudinal sides of the body, but provision may be made to optionally close-off one of the cavity openings by a cover plate. The body is sealed by a sleeve which is preferably a semi-rigid expandable member but which could be a piece of expandable shrink tubing. Lay-in grooves preferably extend from the opposite ends of the cavity to conductive fuse attachment surfaces which are initially preferably bendable tabs located beyond the outer surface of the body to allow the fuse element to be conveniently attached or captured thereby during fuse assembly.

Abstract: An electric micro-fuse comprises a hollow body and a lid therefor. The interior of the fuse body is divided into five sections consisting of two raised plateaus and three recessed sections, wherein the central recess is connected to each end recess through a channel. A fusible element is diagonally stretched between the channels and a lead wire is inserted through each end of the fuse body into the end recesses and are soldered to the respective end of the fusible element. After soldering, the fuse body is covered by the lid and sealed hermetically by a suitable adhesive.

Abstract: The head member of the fuse holder can be removed from a socket member along an insertion axis when pressure is brought to act on spring detents or latches. The non-similarity of the spring detents ensures that the head member only can be inserted into the socket member in one predetermined orientation or position. The fuse holder which, for instance, is a two-pole fuse holder, in addition to an entirely conventional fuse and the associated holder including connection tabs in the socket member, comprises a further fuse which is associated with a line voltage preselector. For this purpose a selector insert is removably seated and locked into position in the head member along the insertion axis. A connecting conductor finger of the selector insert, depending on its rotary position within the head member, contacts a preselectable one of four lateral or side connection tabs. Therefore, the voltage cannot be unintentionally misadjusted when a fuse is exchanged.

Abstract: A fuse manufactured in multiple by insertion of pairs of fuse pins in rows in a base block or in discrete fuse bases supported by a plate which aligns them in rows; winding fuse wires successively along the pins and securing the fuse wires to the pins with the fuse wire between adjacent pairs of pins constituting the fuse link; removing the remaining fuse wire from between pins which are to form adjacent fuses, placing a body member with a cavity over each fuse link and placing a cover thereon. Where a single base block is used, the laminated structure is cut apart into a multiplicity of fuses. Where needed, an extinguishing powder may be sifted on prior to placement of the cover to complete the structure. Where desired, the fuse body and the cover sheet may be vented with an additional cover strip over the vent which will yield to excess pressure. Fuse blocks with multiple fuses of the same or different values may be thus created.

Abstract: An improved electrical fuse comprises an oppositely open ended insulating housing in the form of a cylindrical sleeve having a fuse element disposed therein. A pair of cup-shaped end caps close the ends of the sleeve and are electrically and physically connected to the ends of said fuse element. An external lead is connected to each of the end caps and extends outwardly therefrom. A quantity of solder in each end cap is fused to make electrical contact between the end cap and the adjacent end of the fuse element. An adherent insulating coating layer is disposed over the sleeve, end caps and leads to cover, seal, and physically interconnect the exposed exterior surfaces of said sleeve, said pair of end cap means and a portion of each lead adjacent to said pair of end cap means.