Addressed by the acronym __________, a single-pole, double-throw switch can also be either single-break or double-break in configuration.
Single-pole indicates a single switch is being operated.
Instead of being just opened or closed, double-throw indicates that the movable switch contacts are being thrown from one set of stationary contacts to another set of stationary contacts.
In other words, a single operator activates two switches: in one position, one set is NO and the other set is NC.
When switched to the other position, the NO contacts are now held closed and the NC contacts are now held open.
A) SPST
B) SPDT
C) DPDT
D) DPST
Show Answer
Answer:B
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