Abstract: A fuse suitable for arc quenching is disclosed. The fuse incorporates a high-resistive material or element placed in parallel relationship with the fusible element to mitigate, minimize and/or prevent arcing during an overcurrent condition. By incorporating a high-resistive material or element in parallel with a fusible element an alternate or second path for current flow during an overcurrent condition is provided. As such, during normal operating conditions, current travels through the fusible element. However, during an overcurrent condition, the resistance through the fusible element increases. Once the resistance through the fusible element is greater than the resistance through the high-resistive material or element, the current will bypass the fusible element and travel through the high-resistive material or element. In this manner, arcing through the fusible element during the overcurrent condition can be prevented or minimized.

Abstract: There is provided an electric connection box in which even when a housing of a fuse is fusedly damaged by heat radiation or melting of a fusible element of the fuse, the fusedly-damaged housing can be restrained from adhering to an inner bottom portion of a fuse cavity. The inner bottom portion (11a) of the fuse cavity has a projecting portion (16) formed on an inner bottom face thereof and extending upwardly from the inner bottom face, and an upper face (16c, 16d) of the projecting portion (16) abuts against a lower face (21b) of the housing (21) of the fuse (2), and a gap (15e) is formed between the inner bottom face and the lower face (21b) of the housing (21) because of the projecting portion (16).

Abstract: A fusible link receptacle that, when a fusible link is inserted in the receptacle at an inclined angle, prevents both damage to tab connectors and faulty connections between terminals in the fusible link and the tab connectors. Tab connectors extend from internal circuits into the internal region of the fusible link receptacle, and a rib is formed on the internal surface of the perimeter wall and extends to a point above the leading edges of the tab connectors. Should an attempt be made to insert the fusible link into the fusible link receptacle at an inclined angle, the rib makes interfering contact with the lower edge of the fusible link to prevent further insertion.

Abstract: A fuse-receiving housing is capable to receive selectively one of a mini-fuse and a low height fuse and is provided in an electrical junction box. The housing has a common insertion-limiting part on the inner walls of its cavity. The inner walls are opposed to narrow opposite end surfaces of the received fuses. The common insertion-limiting part is a pair of engagement ribs that has at sloping top surfaces at the upper part thereof that inclines downward and approaches to each other to provide a tapering gap. The engagement ribs locate the low height fuse in the housing when lower surfaces of stepped portions of the fuse body engage the top surfaces. Likewise, the engagement ribs locate the mini-fuse in the housing when lower end edges of a fuse body of the mini-fuse engage the top surfaces.

Abstract: The fuse assembly includes a first fuse. The first fuse includes a first housing. The first fuse includes a pair of first terminals having a first pitch between the first terminals and projecting from the first housing in a mounting direction. The assembly Includes a second fuse. The second fuse includes a second housing. The second fuse includes a pair of second terminals having a second pitch between second terminals identical to the first pitch and provided on both sides of the second housing. The assembly includes a mounting component mated with the first fuse or the second fuse. The mounting component includes mating terminals within the mounting component for electrically conducting with the first terminals or second terminals. The mounting component includes a first stopper configured to position the first fuse relative to the mounting component for electrically connecting the first terminals and the mating terminals with each other.

Abstract: A re-settable fuse is provided with a movable cartridge containing a plurality of fuse elements. When a fuse is blown, a replacement fuse element may be installed into a circuit by moving, rotating or otherwise altering the position of the cartridge such that a new fuse element is inserted between electrical contacts mounted within the interior of the housing of the fuse. The bottom of the housing is configured to conform to a standardized shape of a fuse so that it may be installed into ordinary fuse box. Within the housing is a conductor which connects the fuse and the fuse element with the circuit wired into the fuse box. This conductor is exposed at the bottom of the fuse for connecting with the circuit.

Abstract: A fuse assembly includes multiple fuse elements included in one single multiphase grooved shaft member thereof so that the fuse assembly may be used more than once as a safe electrical connection without the need to replace the whole fuse assembly each time a fuse element thereof is blown out. The fuse assembly can therefore be more convenient and practical in use and more economical and effective in cost.

Abstract: Three terminal prongs are anchored in the base (1) of the apparatus plug. For a bipolar fuse protection thereof two safety fuse cartridges (10) are located in a fuse carrier (8) in a separate adjacent base compartment (7) into which fuse carrier (8) can be inserted and be withdrawn and which opens over the upper side of the base and has a selected depth for a minimal mounting depth. The bottom cap (12) of the safety fuse cartridge rests against a bottom contact terminal (14) located fixed at the bottom of the base compartment with a connecting lug (15) extending towards the outside of the base and electrically connected with a connecting lug of one terminal prong (4).

Abstract: A safety socket with easy fuse replacement device, specifically it covers a socket body and a cylinder used to house a number of protection fuses, the cylinder may be inserted into the annular guidance as provided on the socket body and used to shroud the cylinder whose center abound in insertion holes, characterized in that the center of the insertion hole is provided with a push-on switch such that it may be pressed to conduction once the socket is inserted into the insertion hole, in the event that a fuse is burnt and broken due to overloading, by giving a grip-turn to the cylinder the conserved fuse will replace the function of the broken fuse, and in this manner time and labor are saved, in the meantime, dangers due to replacement of a fuse and a fuse in use are eliminated.

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 fused plug has a fuse cavity containing active and spare fuses which can be alternated between active and inactive positions. The fuses in turn preferably each have multiple fuse elements which can be alternatively placed in active position by changing the position of the fuse in the fuse cavity.

Abstract: A high capacity change-over power supply fuse has an elongate fuse element holder, with fuse element mounting positions at each end. Sliding of the holder move one or the other of the fuse elements into contact with contact members mounted on the supply buses. The fuse element not in contact with the contact members is accessed through an aperture in a cover over the holder and contact members, a clip in cover fitting in the aperture. An aperture, is provided at each end of the cover for access to each fuse element when in a non-active position. Only the contact members need be silver plated, reducing the cost relative to conventional rotary change-over units.