Patent ID: 9673608
Date: 2017-06-06
CPC Classifications: H01C,H01H,H02H

Claim:
1. A device for protecting an electrical installation comprising an insulating body electrically defining an internal housing, the protective device comprising a first joining element and a second joining element intended for joining the protective device to the electrical installation, and comprising, within the internal housing: a first portion of the electrical circuit connected to the first joining element and a second portion of the electrical circuit connected the second joining element; a varistor comprising a first terminal electrically connected to the first portion of the electrical circuit and a second terminal; a disconnection system for disconnecting the varistor comprising a connection element arranged for electrically connecting the second terminal of the varistor to the second portion of the electrical circuit, the connection element comprising a moveable part capable of occupying a contact position in which the connection element is electrically connected to the second terminal of the varistor, and an open position in which the connection element is electrically isolated from the second terminal of the varistor; a disconnection indicator; wherein the disconnection indicator is secured in movement to the moveable part of the connection element, and in that the disconnection indicator and the insulating body are arranged to have a first configuration, which corresponds to the contact position of the moveable part of the connection element, and a second configuration, which corresponds to the open position of the moveable part of the connection element, the relative positioning of the disconnection indicator with respect to the insulating body in the first configuration being visually distinct from the outside of the insulating body from the relative positioning of the disconnection indicator with respect to the insulating body in the second configuration.