Single-Pole, Double-Throw. A switch or relay configured so that one terminal can be connected to either of two other terminals.

Refers to a switch that has a single current path but is capable of routing the input to either of two outputs.

Single Pole / Double Throw: an electrical switch capable of controlling two different circuits. Also: An electrical switch with one set of terminals that terminate ar actuate a single circuit.

Abbreviation for Single Pole Double Throw. Refers to a three terminal switch or a relay (electromechanical or solid-state) having one normally open (Form A) contact and one normally closed (Form B) contact that have an electrically common point (complementary switching). Also known as Form C.

Single-Pole Double Throw. A property of a switch in which one terminal can be connected to one of two other terminals.