Just in case no one knows, modern US buildings use 20A per breaker. I would know, my father's in the construction industry and can read breaker amperage's just like anyone else.
Not quite. Residential construction still runs 15A breakers for most circuits, and 20A for places like bathrooms/kitchens that need more current (hair dryers, griddles, microwaves, etc). High-power draws like ranges, HVAC, and dryers get dedicated 240v circuits at either 30 or 60A.
They're using 14AWG for the 15A circuits, but for the 20A runs they're using 12AWG. NEC prohibits using undersized wire, and doing so would be nearly suicidal anyway.
Commercial construction tends to standardize on 20A, but even new houses I've seen in the last couple years have been majority 15A.
But while in theory a 20A circuit could handle a 2400W power supply, most installations aren't meant for 100% continuous load (defined as 3 hours or more). Yes, the breaker is rated for 100%, but that's at 40C ambient in open air. Once it's packed into a packed into a panel with 20-30 (or more) other breakers and the door is shut, things could hit 40C quite easily. So basically the rule of thumb is to not to exceed about 80% continuous load on any given circuit.
I think they're SLOWLY starting to move to 20A as standard, but since heavier wire costs more money, a contractor's gonna save wherever he can unless the client specifically asks for it (12AWG is roughly 30% more per foot, last I checked, so a good $500 difference on a 2500sq-ft house).
Exactly right. If you've ever noticed how stiff 12AWG is, it is because it is not pure copper, but a mostly-copper alloy. Pure copper is almost too soft to be useful, and since copper is expensive, it is alloyed to reduce cost and increase strength.
Looks like the 2 - 3 kW power is inevitable near term trend for gamers and HPPC and bitcoiners routinely used even more. I afraid that my PC outlet often drains the current close to the limit. The 2kW power supply allows to run 220-240V and the laundry room drier clearly runs from 220-240V, but how to find is it 1-phase or 3-phase current? What type of splitters for the drier and computer best to use?
Sometimes companies make demo products they don't plan to sell in order to sucker journalists into talking about them and, as a side effect, advertising the brand. All you really need is a non-working or barely working mockup. Concept cars are a fine example. They generate attention for a low investment cost and they never really see actual production so that's possibly what these are for.
Then again, I'm hedging my bets with a comment making fun of them while I'm here since it can go either way and I'd never want to be accused of underestimating the stupidity of people that play video games on PCs as a primary hobby.
The labels all read 230V EU. I'd assume if you grey marketed imported one of these into the US you could use it, but would need a 240V NEMA 6-20 or 6-30 outlet (with 14-20/30 also working but the split phase neutral not being connected) and cord to use it.
"AMD's Ryzen Threadripper WX and Intel's Xeon W-3400-series – CPUs that can devour all the way to 900W under heavy loads – as well as NVIDIA's GeForce RTX 4090 graphics cards (or, well, H100 PCIe for AI), 2,000W PSUs are no longer entirely overkill"
Just like a previous article about a case full of holes, you just have to mention the highest end hardware and people will fall all over themselves to feel that a giant PSU is totally justified and that the must have one to support the 300W their computer demands. I'm excited! Here's hoping for more products that are marketed as supportive of the current fastest computer parts that are attempting to land halo sales. It's not like the buyers were going to do anything else useful with that money so it may as well be extracted from them anyhow.
I think general home users are not the target audience. But I can see some labs using this PSU to power quad 4090s for machine learning. Students generally prefer a plug and play solution and hates HPCC.
That's a reasonable suggestion and I hadn't considered it. I suppose that I'd consider most students lacking the buying power to make that sort of purchase and an institution leaning toward some sort of commercial server solution if they were to fund ML hardware for research purposes.
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Threska - Tuesday, June 18, 2024 - link
Breaker, outlet, what's not to worry?https://www.quora.com/How-many-watts-can-an-Americ...
ballsystemlord - Tuesday, June 18, 2024 - link
Just in case no one knows, modern US buildings use 20A per breaker.I would know, my father's in the construction industry and can read breaker amperage's just like anyone else.
ballsystemlord - Tuesday, June 18, 2024 - link
EDIT: 20A for the breakers.They also run 14AWG wire.
Dr_Derpface - Thursday, June 20, 2024 - link
Not quite. Residential construction still runs 15A breakers for most circuits, and 20A for places like bathrooms/kitchens that need more current (hair dryers, griddles, microwaves, etc). High-power draws like ranges, HVAC, and dryers get dedicated 240v circuits at either 30 or 60A.They're using 14AWG for the 15A circuits, but for the 20A runs they're using 12AWG. NEC prohibits using undersized wire, and doing so would be nearly suicidal anyway.
Commercial construction tends to standardize on 20A, but even new houses I've seen in the last couple years have been majority 15A.
But while in theory a 20A circuit could handle a 2400W power supply, most installations aren't meant for 100% continuous load (defined as 3 hours or more). Yes, the breaker is rated for 100%, but that's at 40C ambient in open air. Once it's packed into a packed into a panel with 20-30 (or more) other breakers and the door is shut, things could hit 40C quite easily. So basically the rule of thumb is to not to exceed about 80% continuous load on any given circuit.
I think they're SLOWLY starting to move to 20A as standard, but since heavier wire costs more money, a contractor's gonna save wherever he can unless the client specifically asks for it (12AWG is roughly 30% more per foot, last I checked, so a good $500 difference on a 2500sq-ft house).
dwbogardus - Thursday, June 20, 2024 - link
Exactly right. If you've ever noticed how stiff 12AWG is, it is because it is not pure copper, but a mostly-copper alloy. Pure copper is almost too soft to be useful, and since copper is expensive, it is alloyed to reduce cost and increase strength.SanX - Friday, July 12, 2024 - link
Looks like the 2 - 3 kW power is inevitable near term trend for gamers and HPPC and bitcoiners routinely used even more. I afraid that my PC outlet often drains the current close to the limit. The 2kW power supply allows to run 220-240V and the laundry room drier clearly runs from 220-240V, but how to find is it 1-phase or 3-phase current? What type of splitters for the drier and computer best to use?PeachNCream - Tuesday, June 18, 2024 - link
Sometimes companies make demo products they don't plan to sell in order to sucker journalists into talking about them and, as a side effect, advertising the brand. All you really need is a non-working or barely working mockup. Concept cars are a fine example. They generate attention for a low investment cost and they never really see actual production so that's possibly what these are for.Then again, I'm hedging my bets with a comment making fun of them while I'm here since it can go either way and I'd never want to be accused of underestimating the stupidity of people that play video games on PCs as a primary hobby.
kn00tcn - Tuesday, June 18, 2024 - link
stfu sick trollballsystemlord - Wednesday, June 19, 2024 - link
Be nice, kn00tcn.If PeachNCream wants to be a pessimist, that's his choice. It won't hurt you.
DanNeely - Saturday, June 29, 2024 - link
The labels all read 230V EU. I'd assume if you grey marketed imported one of these into the US you could use it, but would need a 240V NEMA 6-20 or 6-30 outlet (with 14-20/30 also working but the split phase neutral not being connected) and cord to use it.PeachNCream - Tuesday, June 18, 2024 - link
"AMD's Ryzen Threadripper WX and Intel's Xeon W-3400-series – CPUs that can devour all the way to 900W under heavy loads – as well as NVIDIA's GeForce RTX 4090 graphics cards (or, well, H100 PCIe for AI), 2,000W PSUs are no longer entirely overkill"Just like a previous article about a case full of holes, you just have to mention the highest end hardware and people will fall all over themselves to feel that a giant PSU is totally justified and that the must have one to support the 300W their computer demands. I'm excited! Here's hoping for more products that are marketed as supportive of the current fastest computer parts that are attempting to land halo sales. It's not like the buyers were going to do anything else useful with that money so it may as well be extracted from them anyhow.
erinadreno - Wednesday, June 19, 2024 - link
I think general home users are not the target audience. But I can see some labs using this PSU to power quad 4090s for machine learning. Students generally prefer a plug and play solution and hates HPCC.PeachNCream - Thursday, June 20, 2024 - link
That's a reasonable suggestion and I hadn't considered it. I suppose that I'd consider most students lacking the buying power to make that sort of purchase and an institution leaning toward some sort of commercial server solution if they were to fund ML hardware for research purposes.