摘要:
A device for protecting an electrical system against surge voltages, comprising one or more protection components (10), means (20) for disconnecting the protection component (10) and means (30) for visually indicating the state of said component (10), operationally connected to the disconnection means (20) and comprising at least one control part (40) and at least one means (50) for indicating the state of the protection component (10), combined with said control part (40), characterised in that the relative arrangement of said control part (40) and said disconnection means (20) is such that, when the latter are opened (20), they release the control part (40), thereby allowing it to move. Electrical surge voltage protection devices are also described.