As an eyelid opens, the eye can see, meaning the
switch is on.
When the eyelid closes, we can't see, meaning the
switch is
off.
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In a toggle switch you have a lever that you turn to one side or to the other to make the current flow to one side or to other, or to not flow at all.
...
Toggle switches
- \u201cP\u201d for pole;
- \u201cT\u201d for throw;
- \u201cS\u201d for single;
- \u201cD\u201d for double;
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(1 or | means on.) IEC 60417-5008, the power-off symbol (circle) on a button or toggle, indicates that using the control will disconnect power to the device. (0 means off.)
