Repeatedly usable high-operating-speed circuit protection device using reed members

Abstract

The present invention provides a circuit protection device that comprises at least one set of reed members having a pair of reed members, wherein each of the reed members is constituted by a magnetic material and disposed in such a way as to be opposed to the other of the reed members and has an end disposed in such a manner as to be apart by a predetermined gap from and contactable with an end of the other of said reed members, magnetic-field generating unit placed in vicinity of the reed members set and adapted to generate a holding magnetic field for maintaining a state, in which the end of the reed members are in contact with each other, after the ends of the reed members are attracted to each other and the contacts are closed and a contact gap reduction unit for reducing the gap to a gap corresponding to a pull-in of the magnetic field generated by said magnetic-field generating unit.

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