Described is a fuse for an electrical circuit, comprising two contact arms, each having at least one connecting pin for inserting into a hole of a printed circuit board, and a spring which connects the two contact arms in an electrically conductive manner. According to this disclosure, it is provided that the spring is fastened to at least one of the two contact arms by means of a fastening means that loses its strength at a trigger temperature of the fuse, wherein the fuse is formed in such a manner that by inserting the connecting pins into holes of a printed circuit board, the spring is loaded such that the spring lifts from the at least one contact arm by spring force as soon as the fastening means loses its strength due to overheating. Moreover, a printed circuit board comprising such a fuse is described.

An overvoltage protection device having a casing with an internal space, an earth branch, a positive branch, and a negative branch that join. The device also has an earth connector, n1 positive connectors, n1 being greater or equal to 3, and n2 negative connectors, n2 being greater than or equal to 3.

The invention relates to an assembly for a surge protection apparatus (10), comprising a disconnecting device (18) which includes a spring arm (20) having an end-side contact point (24) and a holding element (22). The holding element (22) and the contact point (24) are opposite each other in an initial position of the assembly (11). A thermally softenable material (26) is provided between the holding element (22) and the contact point (24) which connects the spring arm (20) both mechanically and electrically to the holding element (22). The assembly (11) has a remote signaling contact (50) which has a mechanical separating point (48). The spring arm (20), the holding element (22) and the remote signaling contact (50) are produced from a common stamped metal sheet (14). The stamped metal sheet (14) is at least partially insert-molded with a plastic material which forms a frame (16) The invention furthermore relates to a surge protection apparatus.

A surge protection device includes a metal terminal and a spring. The metal terminal is located between two metal oxide varistors, where the metal terminal extends beyond the metal oxide varistors. The spring has a flat surface that is connected to the metal terminal using a soldering paste. The flat surface has a bend on one end which forms a gap between the flat surface and the metal terminal.