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Class 218/87 - Magnetic synchronous contacts


Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including secondary contacts which operate
No. of patents: 1
Last issue date: 02/10/2004


NumberTitleIssue Date
6689980Circuit breaker having hybrid arc extinguishing function
A circuit breaker having a hybrid arc-extinguishing function includes: an upper shell; a lower shell coupled to the upper shell to form an extinguishing chamber (S) filled with an insulation gas; a movable electrode movably installed at the upper shell an... 		02/10/2004
 
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