Basic SPST (Single-Pole,Single-throw) switch

Basic-SPST-Single-Pole-Single-throw-switch

Mechanical switches permit or interrupt the flow of current.
They are also used to direct current to various points.

The basic knife switch is the simplest switch.

OPEN = OFF , Closed = ON.

This is called an SPST (Single-Pole,Single-throw) switch.

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