Protection element

A protection element comprising:

• a fuse element including a plurality of fuse element groups that are disposed in different tiers;
• a plurality of insulating inorganic fibrous materials that are not impregnated with an insulating paste and are arranged to be overlapped;
• and
• a case member configured to cover at least a part of the fuse element and the plurality of insulating inorganic fibrous materials, wherein each of the plurality of insulating inorganic fibrous materials has a space in which a molten scattered material from the fuse element is scattered at a time of arc discharge, wherein each of the plurality of fuse element groups is formed of a plurality of fuse element parts which are arranged in parallel on a same surface, wherein each of the plurality of insulating inorganic fibrous materials is a ceramic paper or a ceramic fiber paper that has a sheet shape which is arranged in parallel with the plurality of fuse element groups, wherein each of the plurality of fuse element parts is a laminate of a low-melting point metal layer and a high-melting point metal layer, wherein the high-melting point metal layer is made of silver (Ag) or a metal containing Ag as a main component, wherein the low-melting point metal layer is a layer having a lower melting point than the high-melting point metal layer, and wherein each of the plurality of fuse element groups is sandwiched by two of the plurality of insulating fibrous materials from opposing sides in a thickness direction.