Phoenix Contact Gmbh + Co. Kg

Steffen Pfortner

Thomas Meyer

Andrei Siegel

Rainer Durth

Peter Berg

Ralf Lange

Friedrich-Eckhard Brand

Thorsten Heil

Oliver Thoren

Jurgen Ahlemeyer

The invention relates to a space-saving isolating arrester, having

Space-saving isolating arrester

The object of the invention is an overvoltage protection apparatus with monitoring function having a parallel circuit of two branch circuits, wherein the first branch circuit has a first overvoltage protection device and a second overvoltage protection device that are connected in series, wherein the second branch circuit has a third device and a fourth device that are connected in series, wherein the first overvoltage device and the third device have a first shared voltage potential during operation, and wherein the second overvoltage device and the fourth device have a second shared voltage potential during operation, wherein a first measuring tap is provided between the first overvoltage protection device and the second overvoltage protection device and wherein a second measuring tap is provided between the third device and the fourth device, with a signal being derived from the voltage between the first measuring tap and the second measuring tap that provides state information in relation to the first overvoltage protection device and the second overvoltage protection device.

Overvoltage protection apparatus with monitoring function

The object of the invention is a device () for protecting a component (EB) against thermal overload. The device () has an actuating mechanism (B) which is brought into thermal contact with the component to be protected (EB) when in use, and which is capable of activating a switch (S) upon reaching a certain temperature T. The switch (S) can be used both as a disconnection switch and as a short-circuiting switch in relation to the component to be protected (EB), with the switch (S) furthermore having a selection mechanism (A) with which one can choose whether the switch (S) should be used as a disconnection switch or as a short-circuiting switch in relation to the component to be protected (EB).

Device for protecting a component against thermal overload

The invention relates to a base element (ST, ST, ST) for receiving an overvoltage protective module (M, M, M) for use in a bus system, having a first bus connection arrangement (BK) for contacting a first bus potential (L), a second bus connection arrangement (BK) for contacting a second bus potential (L), a third bus connection arrangement (BK) for contacting a signal bus (L), wherein the signal bus in a first state indicates the occurrence of a fault and in a second state indicates the non-occurrence of a fault, wherein a fault indicates a missing or incorrectly received or faulty overvoltage protective module (M, M, M), wherein the first and second bus potential are to be used to supply arrangements on the overvoltage protective module (M, M, M), wherein the base element further comprises an electronic monitoring arrangement (UE), wherein the electronic monitoring arrangement (UE) identifies whether an overvoltage protective module (M, M, M) is received, wherein, if an overvoltage protective module (M, M, M) is received in the base element (ST, ST, ST), the second state is signalled via the signal bus, and, if no overvoltage protective module (M, M, M) is received in the base element (ST, ST, ST) or if the overvoltage protective module (M, M, M) is received incorrectly or if the overvoltage protective module (M, M, M) is faulty, the state of the signal bus remains unchanged, wherein the base elements (ST, ST, ST) can be clipped onto a mounting rail (TS, TS), and the first bus potential (L), the second bus potential (L) and the signal bus (L) are guided in a recess in the mounting rail (TS, TS).

Base element for accommodating an overvoltage protection module, and modular bus system

Systems and methods for overvoltage protection are disclosed. According to one illustrative implementation, an overvoltage protection device is provided having one or more overvoltage protection elements and a measuring device for monitoring the overvoltage protection elements. Further, the measuring device may include an evaluation device, which is designed to count pulse-like overvoltage events which are arrested by the overvoltage protection element, wherein the evaluation device is connected to the overvoltage protection element via a light-measuring device and/or a device for identifying a current flow. In further implementations, overvoltage protection devices may comprise an evaluation device which, on the basis of the counted pulses and/or an identified current flow, may determine whether the overvoltage protection element is still operational, is previously damaged, or is unusable, and/or an alarm device, which indicates whether the overvoltage protection element is still operational, is previously damaged, or is unusable.

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Springe, Germany

Steffen Pfortner