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US 9,455,109 B2Granted
Overload release, in particular for a circuit breaker
AssigneeSiemens Aktiengesellschaft
InventorsAndreas Dürr, Xaver Laumer, Bernhard Rösch
Life of this patent
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Abstract
An overload release is disclosed, in particular for a circuit breaker, including a metal strip which is made of at least two different types of metal and around which a heat conductor is wound. In an embodiment, the mechanical and electrical connection of the metal strip can be completely or partly disconnected, such that no current flows over the mechanical connection of the metal strip in the completely disconnected case and a portion of the current flows over the mechanical connection in the partly disconnected case.
Claims13
An overload release, comprising:
- a metal strip including at least two different types of metal, around which a heating conductor is wound, a non-conducting mechanical connection that connects the metal strip to a metal part of the overload release and a conducting electrical connection that connects the metal strip to a current conductor, the mechanical connection and the electrical connection of the metal strip being separated from one another, wherein no current may flow via the mechanical connection of the metal strip during operation of the overload release.
Dependencies are inferred from the claim text.