double-pole switch[¦dəb·əl ¦pōl ′swich]
A switch that operates simultaneously in two separate electric circuits or in both lines of a single circuit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
In electric wiring, a switch which has two blades (and associated contacts) for opening or closing both sides of a circuit simultaneously.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.