Because i thought that it represent a power line that can be plugged on symbol and a closed line and thus without power supply but seen that in wikipedia said that it can come from 1 and 0 used in binary to represent on and off bits i don t know.
Power supply on off switch symbol.
O means the power is off and means the power is on.
To turn the power washer off press.
Iec 5009 the standby symbol line partially within a broken circle indicates a sleep mode or low power state.
They are the international symbols for power on and power off.
A flip of the switch in one direction turns the device on and a flip in the other turns the device off.
Because it means that devices with that broken o symbol are not truly off until they are unplugged.
My question is what is its origin.
On off power button symbols i o.
Some older devices instead have a power switch that accomplishes the same thing as a hard power button.
It does not really represent off it represents low power.
Why is this important.
To turn the power washer on press the down on the power switch.
The switch does not fully disconnect the device from its power supply this may appear on a toggle switch opposite a power on symbol alone on a pushbutton that places the device into a standby state or alone on a button that switches between on and standby.
The power switch is a rocker switch and it has two symbols on the face.
I know i line and o circle symbols are used to specify a switch that turn on and off the power supply.
I on but the o is really an interrupted circle with a line through it.