Phoenix Contact Gmbh & Co.

Phoenix Contact Gmbh + Co. Kg

Joachim Schimanski

Martin Wetter

Eberhard Lehmann

Klaus Scheibe

Joachim Wosgien

Gerd Kracht

Rainer Durth

Michael Tegt

Christian Birkholz

Gerhard Wolff

Karsten Trachte

J&ouml;rg Tews

Volker Danowsky

Aspects of the innovations herein relate to surge protection devices. Such surge protection devices may have an arrester. The arrester may produce an equalization between different potentials and arrest a surge current during use. A sensor may be provided on the arrester, said sensor generating an electric switch-off signal. A switching device may receive the switch-off signal and separate the arrester from an electric circuit, the switching device and arrester being arranged in a physically separate manner from each other.

Surge protection device

An overvoltage protection device for protection of low voltage electrical installations, has a device base part with terminals for phase conductors and ground or neutral conductors and at least one overvoltage protection element, with at least one arrester which is located in a housing. The base part of the device has at least one telecommunications contact which has a switch for remote indication of the state of at least one overvoltage protection element, the base part of the device having plug contacts which are connected to the terminals, and the overvoltage protection element having corresponding connector contacts so that the overvoltage protection element can be plugged onto the base part of the device. The overvoltage protection device is improved by the overvoltage protection element having an optical status display and the optical status display and the switch of the telecommunications contact being actuated via a common mechanical actuating system.

Overvoltage protection device

An overvoltage protection device ( ) with a first electrode ( ) which has a first arcing horn ( ), with a second electrode ( ) which has a second arcing horn ( ), with an air-breakdown spark gap ( ) which is active between the arcing horns ( ), and with a housing ( ) which accommodates the electrodes ( ), has the two arcing horns ( ) shaped and arranged relative to one another such that they diverge from a lower ignition area ( ) to their outer ends ( ), so that the air-breakdown spark gap ( ) widens outwardly, proceeding from the ignition area ( ). The overvoltage protection device ( ) has a current carrying capacity which is as high as possible and a high network follow current extinction capacity with an overall height which is as small as possible by the first arcing horn ( ) being made in the shape of a truncated cone and the second arcing horn ( ) being located concentrically around the first arcing horn ( ).

Overvoltage protection device with concentric arcing horns

An overvoltage protection element for diverting transient overvoltage, with two electrodes ( ), each of which has a current terminal ( ), an air-breakdown spark gap ( ) between the electrodes ( ) and a housing ( ) which holds the electrodes ( ). The overvoltage protection element with an air-breakdown spark gap ( ), with reference to the operating voltage, the lightning surge current and network follow current carrying capacity behavior and the network follow current extinguishing behavior meets current requirements in a special way by the electrodes ( ) being located parallel to one another.

Overvoltage protection element system

An overvoltage protection element for diverting transient overvoltages, with two electrodes ( ), each of which has a current terminal ( ), an air-breakdown spark gap ( ) between the electrodes ( ) and a housing ( ) which holds the electrodes ( ). The overvoltage protection element with an air-breakdown spark gap ( ), with reference to the operating voltage, the lightning surge current and network follow current carrying capacity behavior and the network follow current extinguishing behavior meets current requirements in a special way by the electrodes ( ) being located parallel to one another.

An overvoltage protection system with an overvoltage protection element (1) and an ignition aid which triggers the overvoltage protection element (1), the overvoltage protection element (1) having two main electrodes (2, 3) and an air-breakdown spark gap (4) which acts between the main electrodes (2, 3). An overvoltage protection system having a relatively small and also largely constant operating voltage is implemented by there being an ignition circuit (5) with an ignition voltage output (6) as the ignition aid, the overvoltage protection element (1) having an ignition spark gap (7) which acts between the main electrodes (2, 3) with at least one ignition electrode (8) and the ignition electrode (8) being connected to the ignition voltage output (6) of the ignition circuit (5).

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Detmold, Germany

Joachim Schimanski