double-pole switch

double-pole switch

[¦dəb·əl ¦pōl ′swich]
(electricity)
A switch that operates simultaneously in two separate electric circuits or in both lines of a single circuit.

double-pole switch

In electric wiring, a switch which has two blades (and associated contacts) for opening or closing both sides of a circuit simultaneously.
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References in periodicals archive ?
A six-position double-pole switch ($3 from Radio Shack) is used to select any one of the six species by lighting a small pane under its photo on the upper panel as well as to activate a push-button on the lower panel next to the pane for the associated larva.