Abstract: A trip mechanism for a fuse includes a trip unit disposed within an elongated housing of the fuse, and a processor. The trip unit includes a fuse element and an actuator for severing the fuse element, The processor is in electrical communication with the trip unit, and is adapted to monitor electrical current. Responsive to the processor detecting a predetermined prescribed electrical current, the processor is adapted to signal the actuator to sever the fuse element. The processor is programmable to selectively adjust the predetermined prescribed electrical current, thereby enabling the fuse to have a plurality different current ratings.

Abstract: Radial fuses for protecting an electrical circuit include a nonconductive base provided with inverted flat faces sloped obliquely relative to one another that define a wider receiving area for installation of a fuse element. Restricted freedom of movement of the fuse element is accomplished, and greater fuse reliability is ensured.

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 comprises 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 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 comprises 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 method of manufacturing a fuse includes wrapping the fuse element on an insulating bridge. The ends of the bridge include a metal foil coating which helps increase the conductivity and reliability of the solder bond between the fuse element and end ferrule.

Abstract: In a glass-tube fuse comprising a glass tube, conductive caps on opposite ends of the tube and a fuse element enclosed in the tube and connected between the caps, the fuse element comprises a plurality of cores extending between the caps and at least one braiding strand of metallic material coiled alternately around the cores in opposite directions and connected at its ends to the end caps.