this post was submitted on 02 Nov 2023
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I recently got some free gear* from a business that was vacating their space, including a hefty UPS and some PDUs that use 3 prong twist-lock plugs. I'm not familiar with this type of plug, and I'm wondering if I can just use an adapter to power it with my regular outlets. The cables look beefy and I don't doubt they could draw some high amps.

EDIT: Okay, looks like there are multiple types of "twist lock" plugs in the NEMA standard. I'll have to go into the basement and figure out which one I'm looking at, and probably just look up the UPS spec sheet as well.

*^Also ^a ^Sonicwall ^NSA ^3600 ^and ^two ^Dell ^s3148 ^switches.

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[–] jmarmorato1@alien.top 1 points 10 months ago

Depends on the unit- there is a twist lock 20 amp 120v NEMA plug, but that's very unlikely to be what's going on here. You probably need a 30 amp outlet at 240 volts, but be aware of what voltage this specific UPS runs on. If it's 208, you may not be able to use it at all. If it's 240, you can get an outlet installed to power it.

[–] user3872465@alien.top 1 points 10 months ago (1 children)

Only question I have is: The fuck? Why is there so many standards and different outlet types?

As someone Living in Germany we have exactly one for basically everything.

With the only exceptions being higher current industrial uses in single and 3 phase. and they are also the same among themself only in 16-32 and for 3phase in 64 and 128A variants.

That picture is madness.

[–] ianfretwell@alien.top 1 points 10 months ago

So you have 'exactly one' and then proceed to describe 4 others that you also have...ok...

[–] highdiver_2000@alien.top 1 points 10 months ago

CEE form connectors 16A and 32A. https://en.wikipedia.org/wiki/IEC_60309

Input to the UPS, depending on the capacity can be 16A or 32A, Single phase.

Output is usually 16A CEE form to the Power Distribution Unit. (PDU)

Unlikely you can use this for the home.

RTFM