| 摘要 |
A voltage surge protection device comprises a voltage surge limiter and a disconnecting device with electric contacts. Said disconnecting device comprises a first connecting electrode electrically connected with a first connecting pad, a second connecting electrode electrically connected with a second connecting pad, and a third switching electrode electrically connected to the second connecting pad. An actuating mechanism moves the third electrode to cause continuous opening of the electric contacts. The protection device comprises a disconnector against short-circuit currents connected in series between the third electrode and the second connecting pad Said disconnector is disconnected from the circuit when an electric arc is switched between the first connecting electrode and the second connecting electrode.
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