Siemens Aktiengesellschaft

Bernhard Rösch

Yi Zhu

Alexander Spies

Martin Maier

Wolfgang Feil

Klaus Behringer

Andreas Krätzschmar

Klaus Pfitzner

Andreas Dürr

Xaver Laumer

Alfred Schnellinger

A device for protecting a user includes a first current path including a first and second conduit, and a monitoring device for detecting an imminent overload of the electric user. In an embodiment, the monitoring device includes a first temperature measurement unit, a support, an evaluation unit and a first transducer to produce an electrically conductive connection between the first and second conduits of the first current path. The first temperature measurement unit is, electrically insulated from the first transducer and includes a first temperature sensor. An additional electrically insulating material; is arranged on a first lateral surface of the support between the first transducer and the support and the first temperature sensor is arranged on the support to detect a temperature of the first transducer. The evaluating unit is configured to detect an imminent overload at the user on the basis of temperatures detected by the first temperature sensor.

Device for protecting a user

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.

Overload release, in particular for a circuit breaker

A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the contact piece has a passage through which a tappet is guided.

Contact slider unit for a switching unit, in particular for a circuit breaker

A device is disclosed for protecting a consumer, with a first current path having two lines, and a monitoring arrangement for detecting an imminent overload of the electrical consumer. In order to enable the detection of an imminent overload of a consumer, it is proposed that the monitoring arrangement includes a first temperature measuring unit, an evaluation unit and a first measuring element, which establishes an electrically conductive connection between the two lines of the first current path. The first temperature measuring unit is electrically isolated from the first measuring element and includes a first and a second temperature sensor. The first and second temperature sensor of the first temperature measuring unit are configured to simultaneously record a temperature of the first measuring element and the evaluation unit is configured to detect an imminent overload of the consumer based upon the recorded temperatures of the first temperature measuring unit.

Device and method for protecting a consumer

A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the stabilising element preventing bridge rotation is arranged on the contact piece.

A short-circuit release is disclosed, in particular for a power circuit-breaker, including an armature and a pole, that are located inside of a coil element; and a yoke plate and a terminal connection, which are arranged around the coil element. In at least one embodiment, a coil is wound on the coil element, the two ends of which are weldable on corresponding coil terminals from the same side.

Short-circuit release having an optimized coil connection

A short-circuit release is disclosed, in particular for a power circuit-breaker. In at least one embodiment, the short circuit release includes an armature and pole that are located inside a coil former and further includes a yoke plate and terminal connection that are positioned around the coil former. Arranged opposite the yoke plate is a magnetic plate resting against the terminal connection.

Growing community of inventors

Sulzbach-Rosenberg, Germany

Bernhard Rösch