H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 71/40 (2006.01) H01H 73/48 (2006.01)
Patent
CA 2558205
The invention relates to electrical switchgear, particularly line, motor or fault-current circuit breakers, with a thermal trip, with an electromagnetic trip, with a switching mechanism with a latching point and at least one contact point which is continuously opened or closed by means of the switching mechanism, with an operating handle which is connected to one end of a lug by means of a coupling element and the other end of which is coupled to a contact base carrying the moving contact member, and with a latch lever which, together with a trip lever, forms the latching point. The contact base for the moving contact member is located between the thermal trip and the electromagnetic trip. Together with a rotatably supported trip lever interacting with the electromagnetic trip and the thermal trip, the latch lever forms the latching point. The thermal trip is coupled to the trip lever by means of a connecting rod passing over the contact base so that both the thermal trip and the electromagnetic trip open the latching point in the event of an excess current and/or short circuit current.
Christmann Juergen
Weber Ralf
Abb Patent Gmbh
Marks & Clerk
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