Fused disconnect

A power supply disconnect device for installation in a power supply distribution panel having at least one power supply bus means, said disconnect device comprising:

• a housing;
• load side terminal means extending from said housing;
• line side terminal means extending from said housing for electrical connection to said power supply bus means;
• alarm terminal means extending from said housing;
• first and second cavities formed in said housing;
• a protection fuse holder assembly removably installed in said first cavity;
• an alarm fuse means removably installed in said second cavity, whereby said protection fuse holder assembly is removable without removing said alarm fuse means;
• said protection fuse holder assembly having a body portion, a handle portion attached to said body portion, a cavity within said body portion for containing at least one spare fuse means, a cover for said cavity, first and second fuse contacts attached to said body portion, a protective fuse means having first and second end caps electrically connected to said first and second fuse contacts respectively, each of said first and second fuse contacts having two contacts extending from said body portion for contacting said end caps and for mechanically retaining said fuse means, first and second fuse holder terminal means electrically connected to said first and second fuse contacts respectively, and at least one of said first and second contacts being integral with said respective first and second fuse holder terminal means;
• said first cavity having first and second fuse cavity terminals extending toward an opening thereof for electrical connection to said first and second fuse holder terminal means respectively, each of said first and second fuse holder cavity terminals having contacts for electrically and mechanically mating with said first and second fuse holder terminal means, and at least two locator walls for engaging matching locator clearances on said fuse holder assembly;
• said alarm fuse means having a handle portion, a load side contact attached to said handle portion, a line side contact attached to said handle portion, and an alarm contact attached to said handle portion;
• said second cavity having first, second, and third alarm fuse contacts for respectively mating with said load side contact, said line side contact, and said alarm contact of said alarm fuse means;
• said first cavity terminal being electrically connected to said load side terminal means of said housing and said first terminal means of said second cavity;
• said second cavity terminal being electrically connected to said line side terminal means of said housing and said second terminal means of said second cavity;
• said third terminal means of said second cavity being electrically connected to said alarm terminal means of said housing;
• said housing further comprising a downward extending tab for securing said housing to a first structural member of said power supply distribution panel, a projection extending rearward from the said housing for securing said housing to a second structural member of said power supply distribution panel, said projection including fastener means extending rearward from said projection to engage a receptacle in said second structural member, said housing having an aperture extending from a front wall of said housing to said fastener means to allow access to said fastener means from the front of said housing,
• said line side terminal further comprising second fastener means extending rearward from said line side terminal to engage a receptacle in said power supply bus means, said housing having an aperture extending from a front wall of said housing to said second fastener means to allow access to said second fastener means from the front of said housing;
• and said load side terminal further comprising third fastener means extending forward from said load side terminal to engage a load conductor, said housing being shaped to permit access to said third fastener means from the front of said housing.

The fused disconnect comprising:

• a housing;
• a line side terminal attached to said housing;
• a load side terminal attached to said housing;
• an alarm terminal attached to said housing;
• removable protection fuse means for completing an electrical current path between said line side terminal and said load side terminal;
• and
• alarm generating means responsive to removal of said protection fuse means for supplying an alarm signal to said alarm terminal, whereby said alarm signal is supplied even when said protection fuse is removed.