US 2014/0175057 A1Published application

Switching device

AssigneeEaton Electrical IP GmbH & Co. KG

InventorsKarsten Gerving, Volker Lang, Johannes Meissner, Ralf Thar

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Abstract

A switching device having at least one contact pair includes a first contact and a second contact, where at least the second contact is movable relative to the first contact. There is an extinguishing device with at least one extinguishing chamber for extinguishing an arc produced between the contacts, a first guide rail arrangement for guiding the arc with one direction of current and a second guide rail arrangement for guiding the arc with the second direction of current in said extinguishing chamber. Both guide rail arrangements have a first guide rail and a second guide rail, where both first guide rails starting from the first contact run in the opposite direction, and both second guide rails starting from the second contact run in the opposite direction. The first guide rails are connected with each other in an electrically conductive arrangement in the form of a closed loop.

Claims13

Dependent claims

A switching device for direct current operation, the device comprising:

a contact pair, which contact pair includes a first contact and a second contact, at least the second contact being movable relative to the first contact;
and
an extinguishing device including an extinguishing chamber configured to extinguish an arc produced between the first contact and the second contact,
wherein the extinguishing device includes a first guide rail arrangement configured to guide the arc with a first direction of current and a second guide rail arrangement configured to guide the arc with a second direction of current in said extinguishing chamber,
wherein each of the guide rail arrangements includes a first guide rail and a second guide rail,
wherein the first guide rails, starting from the first contact, run in opposite directions,
wherein the second guide rails, starting from the second contact, run in opposite directions, and
wherein the first guide rails are connected to each other in a conductive link forming a closed loop.

5 more elements

Dependencies are inferred from the claim text.