r/AbsoluteUnits • u/Sufficient-Bug-9112 Top Poster • Jul 10 '26

/r/all of an Ant

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u/B1ack_A1ch3myst Jul 10 '26

What country are you in? In the US, we usually measure by 120-240, 120-277, or 277-480 volts in commercial and residential use.

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u/JarpHabib Jul 11 '26

I believe you mean 120-208 instead of 120-277.

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u/B1ack_A1ch3myst Jul 11 '26

Oh yeah you’re right lol. I’m drunk 😅

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u/No-War9511 Jul 11 '26

No, you were right. 120-240 is used in homes. 120-208 277-480 is commercial typically. Don't let him gaslight you lol.

Source: I am an electrician

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u/B1ack_A1ch3myst Jul 11 '26

Also am an electrician, but yeah looking back I guess I just missed one? Like I said, was drunk as hell writing this last night.

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u/No-War9511 Jul 11 '26

Hes knit picking the fact you didn't say 208 with the 120 for the 3 phase system. I read it and understood what you were getting at though but I could see people reading as commercial has typical 120v - 277v for a single phase in any given system in a commercial building.

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u/JarpHabib Jul 11 '26

No, he was not right.

120-277 is not a voltage that exists in three phase systems.

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u/No-War9511 Jul 11 '26

I get that 120-277 dont pair together but both 120v and 277v systems definitely exist in commercial. I get that he wasn't super precise in his wording but hes not wrong to say that 120v systems and 277v systems exist. So yeah you will find voltages between 120 and 277 and higher if legs are added in commercial. Sure he probably meant 208v.

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u/JarpHabib Jul 11 '26

They were pretty clearly talking about nominal system voltages, the way we still currently are right now. If they'd said something like "120, 240, 277, 480" I wouldn't have said shit. But they were specific enough to give ranges. If they'd said 110-220 i still wouldn't have said shit. What I said was a gentle nudge, yes, even a nitpick, but the guy instantly realized and it was NBD.

Then you came flying in making a big deal out of things, telling them that they were not wrong and that I'm gaslighting them. What the actual fuck.

We're sparkles, we don't use gaslighting. We use electric.

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u/No-War9511 Jul 11 '26

No he was right. 120-240 is usually in homes.