So I saw in a voskcoin video on electric setup about using a PDU, he was showing a 30amp PDU, with a lot of these ASICs running close to 15amps each you could only get 2 per PDU, less if you follow the 80% rule, so why use a PDU with ASIC unless it’s just for the smaller boxes?
I don’t see a reason for a pdu, especially if you are doing your own electrical.
Pdu’s are used to hook up to the psu not the Asics miners. So there could be multiple psu’s hooked up to to one pdu. Pdu also offer extra protection like surge and grounding. Also a 240v hook in the us will have only one outlet as it is a dedicated circuit hence the 80 rule.
So to use more than one psu on that outlet you would need a PDU so you could power more than one psu.
Yes but if the asic is pulling 15 amps you wouldn’t be able to run 2 on the same PDU anyways without maxing the 30amp PDU, the power supply for the asic is still gonna be pulling 15amps to feed the asic, maybe even a little more as the power supply is going use some amps for itself?
The Amps to the Asics is completely different to the psu. The 30 amps is what it pulls at the wall/outlet to the psu. The psu converts it from AC to DC which is a completely different.
I have a s7, s7-ln, r606 and rgb fans all connected to one pdu.
Hmm, instetesting. I was going by the wattage of the asic and dividing by the 220v, guess it doesn’t work that way. So question, for a 3200watt asic, what size.power supply does it require and amp draw? I was thinking of running a 60amp circuit to allow for the Basics with an 80% load but now it seems my thinking on that is incorrect?
Also, on a side note, I see some ASIC pictures where it looks like a hey have spots for 2 plugs to hook up?
I’m doing my research now and am planning on picking up a few miners next month, so far behind the times I could slap myself… But better to start later than not at all!
60 amp circuit will give you 48amp @80% you lose 2amps per 10amps. Plus 60 amp will require min 6 gauge wire standard US houseold wire is 12/14and 10 for dryer and 8 for cooker hookups. 6 gauge will be expensive and unless your getting a separate breaker box a 60 amp breaker will be using upto 60% on a 100 amp circuit and up to 30% on a 200 amp circuit. Thought to take into consideration.
A common mistake is the wattage you use the same amount of wattage on a 110 as you do on a 240v circuit the difference between the two is on 110 there is 1 hot wire and on 220 there are 2 hot wires each carrying 110v. This is why the amps is half as the load is split between the to hot wires.
For psu’s they have to be capable to handle the wattage. The newer bigger Asics have two psu usually built in to the Asic hence the two plugs.
3200 watts on a 220v circuit is around 14.55amps and 29.10amps on 110v.
So for a 30amp circuit you could run 1 as your 80% is 24amps
For a 40 amp circuit you could run 2 as your 80% is 32amps.
For a 60 amp circuit you could run 3 as your 80% is 48amps.
Those numbers are just based on Asics using 3200 watts.
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You are correct in your calculations. Wattage is the universal factor to determine power draw whether ac or dc. If you pull 3200 at the wall, that’s 15ish amps depending on what the exact voltage is. It can vary from 220 to 240v but the amps will fluctuate with the voltage to match wattage. This is the same for ac &dc.
Use the 80% rule always, not worth burning up equipment or a house. I just got my s19j too and am going through this. If you look at the pdu watt rating they are actually 5800 or so for a 30 amp plug. If I could put two miners on it then I would spend the 300+ on one.
I’ve decided on using a 240v 20a plug on a dedicated 20a double pole breaker. The receptacle has two outlets on it which you need. Since the entire miner draws under 14 amps one receptacle should do one miner. Two nema 6-15p to c13 cords allow you to go from the plug directly to the miner so there are a minimum of failure points.
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Personally I would not get a 20amp circuit not because it won’t be able to handle it but more because you cannot add to it. You limit yourself to just the s19j. If you wanted to expand your mining farm you would have to run another circuit. (At more cost) But if you ran a 30 or 40 amp circuit you would be good to go.
I’m only looking to host 2, maybe 4 machines locally. .10/kw isn’t good enough for me to host them all here.
great discussion so far! I was figuring the 60amp circuit to where I will have the miners then split off to outlets for the machines, keeping with the 3200watt for ease of calculations that would allow me 3 big miners, if I went 2 30amp circuits it would basically limit me to 2 miners as 2 15amp miners would max out a 30amp circuit, I have a 150amp service, so I se the point about the 60amp circuit taking up so much of that but 2 30amp circuits would be the same situation but with the 60amp I would have more options? if my thinking is correct.
Also, the 2 PSUs on the bigger miners, I am thinking they each run 220v at 1600watts for this example? so I would need 2 outlets per machine?
what would you consider max # of miners for as residential location? seems about 3 big units would be it, or smaller combinations, I wouldn’t want to go more that 48amps total (hence the 60amp circuit I was thinking of)
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You could do 1 outlet with the 60amp circuit and that’s were a PDU will come into play. The 6 gauge wire will be alot more expensive than 10 gauge.
Having one outlet and a good pdu that tells you your amp draw etc …you would know what you have left over so you could add smaller miners like gold shells. Where as if you just got 6 outlets you would be limited to just the 3 miners and would have to buy a PDU anyways if you wanted to add anymore smaller miners to the circuit.
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I would definitely love to go with a 60 amp metered PDU and just plug everything into that but I haven’t been able to find one looking around online, all the 60 amps I found have been 3phase. Anyone have any luck or links for a 60 amp metered PDU?
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Here is a site that offered 60A single phase pdu http://rackmountpdu.com a 60a circuit is more industrial hence why the 3phase pdu’s. But you could always go with 2 30A pdu’s on the same circuit.
Thanks. I saw them but didn’t see the single phase unit… expensive, lol… Problem with going to 2 30 amp PDUs then you come back to the lower 30amp 80% limit unless the PSU is safe to load at max 30amp usage without any problems?
My thinking is the 48amps of a (80% 60amp circuit) give more options than 2x 24 amps of (2x 80% 30amp circuit) unless I’m over thing it.
If a 30amp PDU is good to run 24/7 at max amprage then 2 30amp PDUs on a 60amp circuit seems the way to go.
Just trying to maximize the amount of miners I can add before pissing off my wife with the noise… Haha
It may just come down to convenience, and everyone’s situation is different. In my case I need to run more power to the back of my garage in order to build a sound box and vent the heat. I will run conduit to a 125amp sub-pannel. Then right beside that place the outlets for miners. Different miners, different wattage of course. If I remember correctly a kd5 can be run on a 15 amp 240 circuit, while the s19s need 20 amps. This posibility allows 5 amps for other miners. Every 3rd kd5 allows a 4th and so on. It takes a little planning and I have the advantage that I run my own electrical (not an electrician tho). I will not be using a pdu, in my opinion it is not needed and for the cost I can run a lot of wire. Whatever you do just be careful, the first person that gave me advise on mining was an electrical engineer and had to have the main line to his house replaced - he was in the process of melting it.
Thanks for the input Shoe. I’ll be running my own electrical as well, have upgraded my service from a 150 panel to a 200 panel at my previous house, not a “certified” electrician either but have the knowledge to do it. I think running the 60 amp circuit and then breaking it off to outlets as needed is gonna be the way I go, would be nice to just plug in a PDU and branch off but the cost savings can go-to a future miner or even offset the materials for when I wire this up. Thanks for all the input everyone! Great thoughts and ideas all around! Looking forward to setting this up and start mining the beginning of the year!
As an electrician the only real issue I can see with the 60A circuit is the wire. You will need min 6 gauge wire which is expensive depending how far away the miners will be from the breaker. Plus you have to keep it to code when you branch out to the outlet circuits.
The way I would do it would be to run the 6 gauge wire to a 60A sub panel. This will allow you to run 20A circuits to the miners and also allow you to stepdown to 12 gauge wire which can handle 20amps non continuous and 16A continuous which is what 80% rules is for. And a lot cheaper than 6 gauge wire.
You could also run additional circuits to run off smaller miners to get the most out of your Amp allowance.
Wiring the sub panel would be easy as the two hot wires from the breaker would be your l1 and l2. Run a common and ground back from the sub panel to the main.
That is exactly what I was thinking of doing! The breaker panel is at the front of the garage and I’m going to run to the middle of the opposite side and then sub panel from there to different circuits. Thanks for confirming my ideas!