H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
H01H85/02—Details
H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
H01H85/05—Component parts thereof
H01H85/143—Electrical contacts; Fastening fusible members to such contacts