Phoenix Contact Gmbh + Co. Kg

Markus Philipp

Joachim Wosgien

Rainer Durth

Christian Depping

Michael Tegt

Jan-Erik Schmutz

The invention relates to a contact for a varistor (VAR), comprising a first feed element (ZL) which is suitable for connecting to a supply network, and a plurality of electrical connection points (V, V. . . VN) which are at a distance from one another and are suitable for making multiple connections to a pole of said varistor (VAR). The plurality of electrical connection points (V, V, . . . VN) and the first feed element (ZL) are electrically interconnected, and the plurality of electrical connection points (V, V, . . . VN) are each designed with fuse elements (F, F, . . . FN) such that local shorting of one part of the varistor (VAR) can be achieved by disconnecting the local electrical connection point (n) (V, V, . . . VN) in question.

Contact element for varistor

An overvoltage protection element having at least one overvoltage limiting component in a housing, terminal contacts for electrical connection of the overvoltage protection element to a path to be protected, an electrically conductive connecting element and with a spring system acting on the connecting element, a first terminal contact being directly connected with the first pole of the overvoltage limiting component, the connecting element being in electrically conductive contact with the second terminal contact and the second pole of the overvoltage limiting component via a thermally separating connection. With the thermal connection separated, the connecting element moves out of electrically conductive contact with the second terminal contact and the second pole of the overvoltage limiting component by the force of the spring system an insulating disconnecting element connected to the connecting element is moved between the second terminal contact and the second pole of the overvoltage limiting component.

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Berkatal, Germany

Markus Philipp