| 摘要 |
The invention relates to device for overvoltage protection comprising the terminals (00) for connection to the protected electric circuit, between which there is arranged the current path, in which the varistor protective element (3) is connected, between whose one output electrode and one terminal (00) for connection to the protected electric circuit in the current path the point (X) of intentional cutting off the current path is created, while to the point (X) the thermal cut out device (TCD) is assigned. Between the point (X) of intentional cutting off the current path and the adjacent outmost varistor (30) of the varistor protective element (3) in the current path an electric element being switched by voltage (4) is connected.
|
