Back to results
US 7,388,169 B2Granted
Electrical device with fixed contacts, mobile contacts and inspectable arc chambers
AssigneeABB Service S.r.l.
InventorsLucio Azzola, Stefano Besana
Life of this patent
Estimating the term…
Abstract
An electrical device for low-voltage applications that comprises at least one fixed contact designed to connect to a corresponding mobile contact; the electrical device also comprises at least one module, on which said fixed contact is housed, and the module is operatively connected to a structural part of the device and is at least partially separable from said structural part.
Claims15
An electrical device for low-voltage applications comprising:
- at least one fixed contact designed to connect to one or more corresponding mobile contacts;
- at least one module, on which said fixed contacts are housed;
- at least one structural part comprising a cavity constituting an arc chamber having at least a mobile contact located therein;
- wherein said at least one module assumes a first position in which it is stably connected to said structural part, said fixed contact assuming an operative position, in which said fixed contact connects up to said mobile contact, when said at least one module is in said first position, said at least one module constituting one of the walls delimiting said cavity when said module is in said first position;
- wherein said module assumes a second position, in which it is at least partially separated from said structural part;
- wherein the passage of said at least one module from said first position to said second position determines at least the partial removal of said fixed contact from moveable contact and the opening of a window for inspection and/or maintenance in said arc-chamber.
3 more elements
Dependencies are inferred from the claim text.