MAIN FEATURES:
1. Simplified arc quenching method
The spiral contact assures a high arc driving efficiency.
2. Simplified construction and high quality
Since complete degassing and hermetical seal are processed
in a vacuum furnace, vacuum degree can be maintained for a
long time.
3. No evacuation tube
Since manufacturing of vacuum interrupters using ceramics
envelopes is done in a vacuum furnace, no evacuation tube
is necessary.
4. Slim body
Since new contact materials are developed, external dimensions
are reduced.

MAIN APPLICATIONS:
· Vacuum circuit-breakers
· Vacuum switches
· Vacuum contactors
· Transformer tap changers
· Rail line circuit-breakers
· Autoreclosers
· Special duties,
e.g. for multi-operation section switches