A power fuse includes a housing, first and second conductive terminals extending from the housing, and at least one fatigue resistant fuse element assembly connected between the first and second terminals. The fuse element assembly includes at least a first conductive plate and a second conductive plate respectively connecting the first and second conductive terminals, and a plurality of separately provided wire bonded weak spots interconnecting the first conductive plate and the second conductive plate.

A power fuse includes a housing, first and second conductive terminals extending from the housing, and at least one fatigue resistant fuse element assembly connected between the first and second terminals. The fuse element assembly includes at least a first conductive plate and a second conductive plate respectively connecting the first and second conductive terminals, and a plurality of separately provided wire bonded weak spots interconnecting the first conductive plate and the second conductive plate.

A fuse element assembly has been disclosed. The fuse element assembly includes a fuse element having a pair of side edges and at least one weak spot between the side edges. The fuse element assembly also includes an arc-quenching material attached locally to the fuse element adjacent the weak spot.

A fuse element assembly has been disclosed. The fuse element assembly includes a fuse element having a pair of side edges and at least one weak spot between the side edges. The fuse element assembly also includes an arc-quenching material attached locally to the fuse element adjacent the weak spot.

A circuit protection device including a housing having a top section mounted to a bottom section, a first arc barrier extending from the bottom section, a second arc barrier extending from the top section, the top and bottom sections mounted together to define a cavity between the first arc barrier separated a distance from the second arc barrier, a first terminal and a second terminal secured to the bottom section, and a fuse element comprising a body of metallic material arranged in one of a plurality of geometric configurations mounted within the top section and the bottom section of the housing, extending through the first arc barrier and the second arc barrier and connected to the first and second terminals, wherein the first and second arc barriers resist arcing upon activation of the fuse and the fuse element melts upon occurrence of an overcurrent condition.

A circuit protection device including a housing having a top section mounted to a bottom section, a first arc barrier extending from the bottom section, a second arc barrier extending from the top section, the top and bottom sections mounted together to define a cavity between the first arc barrier separated a distance from the second arc barrier, a first terminal and a second terminal secured to the bottom section, and a fuse element comprising a body of metallic material arranged in one of a plurality of geometric configurations mounted within the top section and the bottom section of the housing, extending through the first arc barrier and the second arc barrier and connected to the first and second terminals, wherein the first and second arc barriers resist arcing upon activation of the fuse and the fuse element melts upon occurrence of an overcurrent condition.

A compact disconnect device includes a magnetic arc deflection assembly including at least one set of stacked arc plates and at least one magnet disposed adjacent switchable contacts and establishing a magnetic field across the stacked arc plates. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. The disconnect device may be a compact fusible switch disconnect device having dual sets of switch contacts in the same current path.

A compact disconnect device includes a magnetic arc deflection assembly including at least one set of stacked arc plates and at least one magnet disposed adjacent switchable contacts and establishing a magnetic field across the stacked arc plates. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. The disconnect device may be a compact fusible switch disconnect device having dual sets of switch contacts in the same current path.

A pyrotechnic circuit protection system includes a first connection terminal, a second connection terminal and a plurality of pyrotechnic modules connected between the first and second connection terminals. Each of the pyrotechnic modules includes a nonconductive housing and electrical connectors facilitating plug-in connection of the pyrotechnic modules to one another. A single control module may control and coordinate a plurality of pyrotechnic disconnect modules.

A printed fuse fabrication is provided. The printed fuse includes a low thermal conductivity ceramic substrate and a fusible element printed on the substrate. The fusible element printed on the substrate includes a series of portions of reduced printed thickness, defining weak spots for fusible operation of the fusible element, respectively separated by portions of increased printed thickness.