IP Library › Granted Patent US 12683097
Granted Patent B2
US 12683097 · App. 18/404,007 · Granted Jul 14, 2026

Device for extinguishing arcs in an electrical circuit

Inventors: Gabriel Lantz (Zurich, CH); Matthias Bator (Klettgau, DE); Julien Rault (Bern, CH)
Assignee: ABB Schweiz AG
H01H9/362H01H9/32H01H9/342H01H9/346
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Quick Facts
Patent No.
US 12683097
App. No.
18/404,007
Granted
Jul 14, 2026
Kind
B2
Abstract

A device for extinguishing arcs in an electrical circuit includes a first arc chamber configured to divide a first part of an arc into a plurality of subsidiary arcs, a second arc chamber configured to divide a second part of the arc into a plurality of subsidiary arcs; wherein the first arc chamber and the second arc chamber are connected by a connection element configured to guide the second part of the arc from the first arc chamber to the second arc chamber.

Claims (17)

1 . A device for extinguishing arcs in an electrical circuit, comprising:

a first arc chamber configured to divide a first part of an arc into a plurality of subsidiary arcs,

a second arc chamber configured to divide a second part of the arc into a plurality of subsidiary arcs;

wherein the first arc chamber and the second arc chamber are connected by a connection element configured to guide the second part of the arc from the first arc chamber to the second arc chamber;

wherein the connection element is a double curved splitter plate that solely guides the second part of the arc; and

wherein the double curved splitter plate comprises a u-shape in a side view.

2 . The device according to claim 1 , wherein the connection element is a splitter plate that protrudes from the first arc chamber to the second arc chamber.

3 . The device according to claim 1 , wherein the first arc chamber and the second arc chamber are insulated electrically from each other except via the connection element.

4 . The device according to claim 1 , wherein the connection element comprises a metal part and an insulator, wherein the insulator isolates the first arc chamber from the second arc chamber.

5 . The device according to claim 1 , wherein the first arc chamber comprises at least one splitter plate and the second arc chamber comprises at least one additional splitter plate, wherein each of the at least one splitter plate of the first arc chamber and the at least one additional splitter plate of the second arc chamber comprises a metal part.

6 . The device according to claim 5 , wherein an insulator is attached to each metal part.

7 . The device according to claim 1 , wherein the first arc chamber and the second arc chamber are arranged adjacent to each other.

8 . The device according to claim 1 , wherein the first arc chamber and the second arc chamber are arranged in series to each other.

9 . The device according to claim 1 , wherein the second arc chamber is configured to be detachable connected to the first arc chamber.

10 . The device according to claim 1 , wherein the circuit is a DC circuit.

11 . The device according to claim 1 , wherein the circuit is an AC circuit.

12 . The device according to claim 1 , further comprising at least one exhaust configured to allow gas originated due to the arc to exit the first arc chamber and the second arc chamber.