Single pole, double throw. —Single pole..one set of contacts —Double throw..relay contractor can close to pole on the right or to the left. Analogy…Most light switches are ST while a switch that controls Raising or lowering a projector screen is DT with the center position null.

“Is the spdt ?”

Asked by Jake 5 years ago

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Viper - Relay Assembly Kit - Black-Front_Standard

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Single pole, double throw. —Single pole..one set of contacts —Double throw..relay contractor can close to pole on the right or to the left. Analogy…Most light switches are ST while a switch that controls Raising or lowering a projector screen is DT with the center position null.
Answered by RangerFred 3 years ago
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