airblast circuit breaker

airblast circuit breaker

[′er‚blast ′sər·kət ′brāk·ər]
(electricity)
An electric switch which, on opening, utilizes a high-pressure gas blast (air or sulfur hexafluoride) to break the arc.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.