DEVICE FOR SUPPRESSING AN ELECTRIC ARC

摘要

The invention relates to a device for suppressing an electric arc (1) for a box (2) withstanding an internal overpressure, in particular an explosion-proof box. The invention is characterised in that it comprises an insulating housing (4) including a contact means (5) connected to the three phases (30, 31 and 32) of a power grid (3) and designed to be suitable for closing following an increase of the pressure inside the box (2), also comprising a retaining means (7) designed to be suitable for maintaining the contact means (5) in a first position referred to as the open position.