Thermally triggered, mechanical switching device

A thermally triggered, mechanical switching device, which comprises:

• a fusible shaping part and a mechanical force-storage means, wherein the fusible shaping part blocks or unblocks the movement path of a (3), the plunger (3) having a first end and an oppositely disposed second end;
• the plunger (3) further being preloaded by the mechanical force-storage means, and
• a housing that accommodates the fusible shaping part, the plunger and the mechanical force-storage means,
• wherein
• the housing is designed as a cartridge-like shell (1), which receives the plunger (3) in the interior thereof, wherein said plunger is mounted in a movable manner through a first end-side opening (7) in the housing and is supported against the fusible shaping part (4) under pretension, wherein the fusible shaping part (4) is arranged so as to cover a second opening (9), which is located opposite the first end-side opening, in such a way that, when a melting temperature of the fusible shaping part (4) is reached, said fusible shaping part is displaced by the plunger (3) and the plunger (3) takes on a changed position;
• wherein the plunger (3) is movable between a first position and a second position, the plunger (3) being in the first position if the melting temperature of the fusible shaping part (4) has not been reached, the plunger (3) moving to the second position if the melting temperature of the fusible shaping part (4) has been reached;
• wherein in the first position, the first end of the plunger (3) protrudes from the first end-side opening (7) and is operatively coupled to a first electrical switch or a first switching status indicator;
• and
• wherein in the second position, the first end of the plunger (3) is operatively decoupled from the first electrical switch or the first switching status indicator.