A fuse comprising: - two electric contacts, each electric contact extending in a prevailing longitudinal contact direction (X-X) and comprising a contact portion which is designed to establish an electric contact with a mating contact and a contact end, said electric contact having, at least at said contact end, a contact width Wc extending in the direction (Y-Y) perpendicular to said longitudinal contact direction (X-X), - a fusible element extending in a prevailing longitudinal fuse direction (X'-X') along a fuse length Lf between two opposed fuse ends (21, 22), each fuse end (21, 22) being directly connected and located immediately adjacent to a respective contact end, said fusible element comprising: - a first fuse extending in the longitudinal fuse direction (X'-X') along a first fuse length Lfl between one fuse end of said two opposed fuse ends (21, 22) and a connecting end, said first fuse having, at a minimum-section portion thereof, a first width Wfl in the direction (Y-Y) perpendicular to said longitudinal fuse direction (X'-X'), and a first section Sfl, - at least one second fuse extending in the longitudinal fuse direction (X'-X') along a second fuse length Lf2 between said connecting end and the other fuse end of said two opposed fuse ends (21, 22), such that said second fuse is connected in series to said first fuse and is disposed between said first fuse and said respective fuse end, wherein: - said second fuse comprises a narrowed part with a second width Wf2 in the direction (Y-Y) perpendicular to said longitudinal fuse direction (X'-X'), and a second section Sf2, characterised by - a casing defining a housing for said fusible element and for at least part of each electric contact, - said second width Wf2 being smaller than said first width Wfl and said contact width Wc, - said narrowed part being located distal to said connecting end, near said the other fuse end, - said narrowed part being placed near a respective contact end of one contact of said two contacts so that said one contact is immediately adjacent to said narrowed part, - said second section Sf2 ranging from 20% to 50% of said first section Sfl. - two electric contacts, each electric contact extending in a prevailing longitudinal contact direction (X-X) and comprising a contact portion which is designed to establish an electric contact with a mating contact and a contact end, said electric contact having, at least at said contact end, a contact width Wc extending in the direction (Y-Y) perpendicular to said longitudinal contact direction (X-X), - a fusible element extending in a prevailing longitudinal fuse direction (X'-X') along a fuse length Lf between two opposed fuse ends (21, 22), each fuse end (21, 22) being directly connected and located immediately adjacent to a respective contact end, said fusible element comprising: - a first fuse extending in the longitudinal fuse direction (X'-X') along a first fuse length Lfl between one fuse end of said two opposed fuse ends (21, 22) and a connecting end, said first fuse having, at a minimum-section portion thereof, a first width Wfl in the direction (Y-Y) perpendicular to said longitudinal fuse direction (X'-X'), and a first section Sfl, - at least one second fuse extending in the longitudinal fuse direction (X'-X') along a second fuse length Lf2 between said connecting end and the other fuse end of said two opposed fuse ends (21, 22), such that said second fuse is connected in series to said first fuse and is disposed between said first fuse and said respective fuse end, wherein: - said second fuse comprises a narrowed part with a second width Wf2 in the direction (Y-Y) perpendicular to said longitudinal fuse direction (X'-X'), and a second section Sf2, characterised by - a casing defining a housing for said fusible element and for at least part of each electric contact, - said second width Wf2 being smaller than said first width Wfl and said contact width Wc, - said narrowed part being located distal to said connecting end, near said the other fuse end, - said narrowed part being placed near a respective contact end of one contact of said two contacts so that said one contact is immediately adjacent to said narrowed part, - said second section Sf2 ranging from 20% to 50% of said first section Sfl.