![]() ![]() I checked the original specs and they do not indicate what the inspiration for the 0 and 1 was, so unless someone can come up with a reference either way, it's unknown. Now, the page has been edited to contest this origin. A soft power button, which is much more common, is electrical and appears the same when the device is on and off. Unlike a switch, a circuit breaker automatically does this and shuts off the power. Press-ON-Press-OFF soft toggle action, where a short button press of a tactile switch latches the circuit ON and another toggles it back OFF or, A Press-ON-Hold-OFF action, where a short press turns power to a circuit ON, but a longer button hold is needed to toggle it OFF. Previously, the Wikipedia page on this symbol had said the circle comes from 0 and the line comes from 1. An electrical switch serves the purpose of controlling the flow of. The meaning of 0 for off is quite commonly seen, with other electrical equipment, such as heaters, where there can be several power levels. ![]() They require pressure to open and close a circuit, to reduce accidental activation. And glue guns take a few minutes to heat up so that’s annoying (and possibly dangerous) Rocker switches are panel-mounted switches that are used with appliances, light control, power tools, industrial machines, motor, and surge protection. ![]() The next day we got home to find our new glue gun had arrived. #Electric on off switch trialQuality German engineering made the heater silent so there was no way to tell by listening. And, of course there is no label on any of the on-off switches which lead you to having to guess through trial and error, one switch box at a time, which one of them provides the power for the area of the house containing the light switch. We were recently in a hotel in Berlin Germany and the room heater had the line-circle (| O) symbol on it and we couldn’t remember whether line means on and circle means off, or the line means off and circle means on. ![]()
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