This fuse unit (1) comprises: a
bus bar (3) that acts as a conductor and in which a section to be
cut (3b) is set; a case body (2) that supports two points sandwiching the section to be
cut; a
cutting section (4) that is disposed in a first space (6) that is an internal space of the case body and is formed on one side with respect to the
bus bar, the
cutting section acting as an insulator; and a reconnection section (5) that is disposed in a second space (7) that is an internal space of the case body and is formed on the side of the
bus bar opposite to the first space, the reconnection section acting as a conductor, wherein the
cutting section has a tip section (4c) that cuts the bus bar into a first portion (14) and a second portion (15) at the section to be
cut and is able to move into the second space, and the reconnection section has a first connection section (5b) that comes into contact with the first portion and a second connection section (5c) that comes into contact with the second portion.