double-pole double-throw switch
double-pole double-throw switch[¦dəb·əl ¦pōl ¦dəb·əl ¦thrō ′swich]
A six-terminal switch or relay contact arrangement that simultaneously connects one pair of terminals to either of two other pairs of terminals. Abbreviated dpdt switch.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.