double-break switch[¦dəb·əl ¦brāk ′swich]
Switch which opens the connected circuit at two points.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
In electric wiring, a switch which opens a conductor at two points.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.