FLAT FUSE FOR HIGH RATED CURRENTS

Blade type plug-in fuse for high nominal currents. It is of the type comprising a case (1) in which is partially housed a conductive unit (5, 6, 9, 10) provided with two flat connection terminal blades (5, 6) whose free ends (7) are situated outside the case, said connection terminal blades being connected inside the case by a flat fuse link part (8) on at least one side and substantially in the center of which is deposited a drop of metal (13) of predetermined area of contact, and it is characterized in that the fuse link part comprises a central gauging zone (9) of width (11) smaller than the width (12) of the adjacent lateral zones (21) connecting with the connection terminal blades, the area of contact (31) of said drop (13) being at least greater than half the area of the gauging zone (9). Application notably to automobile equipment. Figure 2.