| 摘要 |
An overvoltage protection element with a housing, with at least one overvoltage limiting component which is located in the housing, with terminal elements for electrical connection of the overvoltage protection element to the current or signal path which is to be protected, and with a state display which has a display element for display of the state of the overvoltage protection element. A conclusion about the state of the overvoltage protection element is easily possible as a result of a thermally activatable, endothermic material being both in thermal contact with the overvoltage limiting component and also in mechanical contact with the display element of the state display. When the overvoltage limiting component is heated above a certain minimum temperature, expansion of the thermally activatable, endothermic material produces a change in position of the display element whose magnitude is a measure of the heating of the overvoltage limiting component.
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