High current vacuum circuit interrupter with beryllium contact
High or medium tension circuit breaker
High or medium tension circuit breaker
High power RF coaxial switch
High power switching apparatus
High pressure arc extinguishing chamber
High rupture capacity circuit-breaker
High speed actuating mechanism
High speed switching device for switch and breaker
High speed vacuum interrupter
High tension arc-blast circuit breaker
High tension circuit breaker
High tension circuit breaker having a dielectric blast gas
High tension circuit breaker including a dielectric gas used for
High tension circuit breaker with low operating energy
High tension circuit-breaker having a dielectric gas under press
High tension vacuum switches
High voltage air disconnect switch incorporating a puffer type l
High voltage air disconnect switch incorporating a puffer-type l
High voltage circuit breaker