Overvoltage protection arrangement for direct and alternating voltage networks, has capacitor additionally connected after varistor in series circuit with break-over diode element

摘要

The overvoltage protection arrangement has a series circuit containing a break-over diode element (3) with a varistor (5) between two direct voltage terminals (1,2) of a network to be limited to a defined voltage value. A capacitor (9) is additionally connected after the varistor in the series circuit. A discharge resistor (8) is connected in parallel with the capacitor.