Abstract: An electrical installation arrangement includes an electrical power distribution network and/or at least one first electrical device. In order to reduce complexity of electrical installation arrangement and increase safety of people and facilities, a detector is provided for determining a fault source using blind source separation, e.g. for locating at least one first electrical fault source, in particular at least one first fault current source and/or a first overload area. The detector is hereby disposed on and/or in the electrical power distribution network and/or the at least one first electrical device.

Abstract: A residual-current circuit breaker includes at least one summation current transformer through which at least one first lead and one second lead of a network to be protected are guided. At least one secondary winding is arranged on the summation current transformer and operatively connected at least indirectly with at least one energy storage element. At least one discharging resistor is switched in parallel with the energy storage element. The residual-current circuit breaker has a trip element which is operatively connected with break contacts in the at least one first lead and the at least one second lead. In order to reduce unexpected cut-offs of a network to be protected, the at least one discharging resistor includes a first partial resistor, and a second partial resistor switched in series with respect to the first partial resistor, with a least one electric signaling device operatively connected, at least indirectly, with the first partial resistor.

Abstract: A residual-current circuit breaker includes at least one summation current transformer through which a first lead and a second lead of a network to be protected are guided. At least one secondary winding is arranged on the summation current transformer and operatively connected, at least indirectly, with an energy storage element. A trip element is operatively connected with break contacts in the first and second leads. In order to reduce expected cut-offs of a network to be protected, an electric signaling device is operatively connected, at least indirectly, with the energy storage element.

Abstract: A switching device for disconnecting and switching at least one line of a power supply is disclosed. The switching device may be, for example, a residual-current-operated protective device or a combination switch and includes a line-voltage-independent trigger device, a trigger element, such as a trigger relay, associated with the line-voltage-independent trigger device, as well as a line-voltage-dependent trigger device. The line-voltage-dependent trigger device has means for triggering the trigger element that is associated with the line-voltage-independent trigger device. The switching device has a simple construction, a reduced number of components, and also an enhanced functional reliability compared to a conventional switching device.

Abstract: A switching device has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device for disconnecting the two switching contacts is operatively connected to a short-circuit trigger device which is arranged in the region of the input terminal and triggers the disconnect device. The short-circuit trigger device includes a U-shaped yoke and a movable hinged armature, which simplifies the design.

Abstract: A tripping module for a switching device includes at least a magnetic system having at least an armature, a coil, and a yoke. The coil is arranged about the armature, and the yoke is arranged about the coil. The armature is provided for tripping at least indirectly a disconnecting apparatus of the switching device. In order to increase security in electric installation arrangements, the yoke includes at least a bent sheet-metal part.

Abstract: A switching device, for example a circuit breaker, has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device is provided for disconnecting the two switching contacts. For triggering the disconnect device, an overcurrent trigger device and/or a short-circuit trigger device are in mechanical operative connection with the disconnect device by way of a reversing lever. The reversing lever includes a first lever arm with a trigger extension that can be actuated by the overcurrent trigger device and/or by the short-circuit trigger device, and a second lever arm with an actuating extension for triggering the disconnect device. To ensure safe operation, the actuating extension is configured to be resiliently compliant.

Abstract: A switching device has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. An overcurrent trigger device which includes a bimetallic element heated by an electric current flow is provided for disconnecting the two switching contacts. A thermal insulator is arranged in the attachment region of the bimetallic element for reducing heat transfer from the bimetallic element as well as for increasing the accuracy and the degree of reproducibility for triggering the switching device. The switching device can be implemented as a circuit breaker.

Abstract: A switching device has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device is operatively connected to at least one of the input terminal and the output terminal for disconnecting the two switching contacts. An arc quenching chamber composed of a plurality of metal plates is arranged in the region of the switching. At least two of the metal plates abut one another at least over a region to attain high reliability and operational safety even after repeated disconnects.

Abstract: In a switching device (1), in particular a line circuit breaker and/or a residual current circuit breaker, having a housing (2) and having switching contacts for closing and/or opening at least one circuit, wherein a tripping apparatus for automatically disconnecting the switching contacts is provided, wherein the housing (2) has at least one front side (3), the invention proposes, for the purpose of meeting changing requirements from the market or the customers quickly, flexibly and at favourable cost, clipping a cover cap (4) onto the front side (3).

Abstract: A switching instrument, in particular circuit breaker and/or ground fault circuit interrupter, includes a switch lever for manual closing and/or opening of switching contacts, and a tripping unit for automatically separating the switching contacts. The switch lever has an actuating projection and a separate grip which is attached onto the actuating projection.

Abstract: A switching device for disconnecting and switching at least one line of a power supply is disclosed. The switching device may be, for example, a residual-current-operated protective device or a combination switch and includes a line-voltage-independent trigger device, a trigger element, such as a trigger relay, associated with the line-voltage-independent trigger device, as well as a line-voltage-dependent trigger device. The line-voltage-dependent trigger device has means for triggering the trigger element that is associated with the line-voltage-independent trigger device. The switching device has a simple construction, a reduced number of components, and also an enhanced functional reliability compared to a conventional switching device.