Electrical power supply disconnector for a protection module and protection module including such a disconnector

An electrical power supply disconnector used in a module for protection from electrical faults for establishing or severing the connection between current conductors and a power supply circuit, said power supply disconnector comprising:

• a housing of rectangular section, including an upper wall and a lower wall, the inner surfaces of the upper wall and of the lower wall facing each other and defining a central passage oriented along a centre axis, the lower wall bearing, on its inner surface, at least one first lower contact strip, the upper wall bearing, on its inner surface, at least one first upper contact strip, said first upper contact strip being located facing the first lower contact strip along a contact axis;
• and
• a slider arranged to slide through the central passage in the direction of the centre axis, and suitable for bearing at least one first electrically conductive bar, said first bar being oriented along the contact axis and being arranged for electrically connecting the first lower contact strip and the first upper contact strip when said slider is in a first position,
• wherein the first lower contact strip and the first upper contact strip include an elastic boss suitable for exerting a pressing force on the first bar when said first bar is in the first position.