Fuse

The present invention provides a fuse that is easily attached directly or indirectly to a battery. A fuse 400 fixed to a battery post BP or a coupling post 510 coupled to a base member 500 of the battery post BP includes: a fuse element 100 including an input terminal 110 fixed to the battery post BP or the coupling post 510, an external output terminal 120, and a fuse portion 130 provided between the input terminal 110 and the external output terminal 120; a housing (200) that includes an exposure window (230) that exposes the fuse section (130), and that accommodates the fuse element (100); and a cover member (300) that covers the exposure window (230). The cover member 300 includes a protruding portion 340 that protrudes toward the battery BT side including the battery column BP or the base member 500 side, and the protruding portion 340 can abut a portion of the battery BT or a portion of the base member 500. 本申请的发明内容提供了一种易直接或间接地附接到电池的熔断器。一种固定到电池柱BP或耦合到所述电池柱BP的基座构件500的耦合柱510的熔断器400包括：熔断器元件100，其包括固定到所述电池柱B