Overvoltage protection arrangement for use in e.g. low-voltage system, has terminal elements fixed relative to two counter-contact elements, where fixation of terminal elements are released during heating of clamping element

摘要

The arrangement has a temperature-sensitive band shaped clamping element (24) i.e. plastic band, partially shifting two terminal elements (12, 14) of an overvoltage protection component (10) i.e. varistor, at a contacting state. The terminal elements are held relative to two counter-contact elements (18, 20) by the clamping element in a fixed manner. The fixation of the terminal elements are released during heating of the clamping element above a critical temperature of the clamping element, so that contacting between the terminal elements and the counter-contact elements is interrupted.