Removable electric current switching element and electrical switchgear for switching an electric current comprising such a removable switching element

A removable electric current switching element, comprising:

• a housing provided with a first bottom plate and a second bottom plate which are opposite one another;
• fixed electrical contacts, which are rigidly connected to the first bottom plate;
• electrically mobile contacts movable with respect to the fixed electrical contacts, said mobile contacts being borne by a movable contact holder movable in translation with respect to the second bottom plate;
• the housing comprising insulating walls which extend around the electrically mobile contacts from the second bottom plate and along a direction perpendicular to the second bottom plate;
• wherein the housing further includes protection walls which at least partially cover inner faces of the insulating walls, said protection walls being formed as a single piece with the second bottom plate.