Fuse holders

A fuse holder including a fuse-carrier unit for receiving and retaining at least one cartridge fuse;

• said fuse-carrier unit bearing spaced-apart fuse-carrier contacts and a receptacle unit for receiving the fuse-carrier unit and having mutually spaced-apart receptacle contacts for tight engagement with the fuse-carrier contacts, respectively, so as to form pairs of companion contacts that are spaced apart, and a lever pivoted to one of said units and arranged to drive said units away from each other so as to part the contacts of at least one companion pair of contacts, said units and the lever being so related to each other that the fuse-carrier unit tilts in response to the operation of the lever and causes one pair of companion contacts to be released from each other while the companion contacts of the other pair remain in tight engagement.

A fuse holder including a fuse carrier for a cartridge fuse, the fuse carrier having spaced-apart blade contacts, and a receptacle having spaced-apart receptacle contacts for tight engagement with respective fuse-carrier contacts, said receptacle including a body of insulation having a forward-opening cavity for receiving the fuse carrier and opposite-end openings at which circuit conductors may be inserted, screw-clamps operable from the front of the receptacle for securing inserted conductors to the receptacle contacts, respectively, and respective shields for the receptacle contacts pivoted to said receptacle and movable between respective operating positions largely overlying and shielding the receptacle contacts against access when the fuse carrier is removed from the receptacle but having openings enabling the fuse-receptacle blade contacts to engage the receptacle contacts, said pivoted shields being pivotally movable away from said receptacle contacts and into erect positions to provide manipulative access to said screw clamps, said shields when in their erect positions obstructing the cavity against insertion of the fuse carrier and constituting prominent indicators of the unshielded state of the receptacle contacts.

A fuse holder including a fuse carrier for at least one cartridge fuse and a receptacle including a body of electrical insulation, said body having a front-opening cavity for receiving said fuse carrier and said body having a recess in its rear for admitting and retaining one margin of a mounting rail, said receptacle having a pair of spaced-apart receptacle contacts and screw clamps for securing circuit connections to said receptacle contacts, respectively, said receptacle being apertured for admitting a connecting wire to at least one of said clamps, and a shroud of insulation for shielding a wire entering said body when a bared end portion of the wire is received in one of said screw clamps, said insulating shroud having releasable formations for holding such shroud in wire-shielding assembly to said receptacle body and said insulating shroud having a detent portion for cooperating with a margin of the aforementioned mounting rail at the side thereof opposite to said first margin for releasably securing said receptacle to the mounting rail.

A fuse holder including a fuse carrier for at least one cartridge fuse and a receptacle having a front-opening cavity for receiving said fuse carrier, said receptacle having a spaced-apart pair of receptacle contacts, clamps for securing inserted circuit connections to said receptacle contacts and said receptacle having opposite-end openings for admitting circuit connections to said clamps, and at least one terminal unit for providing a connection to a respective one of said receptacle contacts, said terminal unit including a terminal member having a hook formation adapted to enter one of the end openings in the receptacle body and to extend into and be gripped by one of said clamps, said terminal member having a threaded stud portion extending rearward of said receptacle when said hook formation is gripped by one of said clamps, and said terminal unit bearing a closure of insulation for one of said opposite-end openings of the receptacle and said closure extending as a shroud for a portion of said terminal member adjacent to the receptacle body.