Antminer A3 Electricity Setup Help?

[Pantoflascrypt017]

Hey guys,

I am a complete noob when it comes to this and what gear i should have for my electricity setup. I have an A3 on the way and will be my first time mining so just need some advice on the electricity setup etc. I am living in the EU and my house has 250v setup i think, i will post pictures of the breaker and electricity box for reference. I am just wondering firstly what PSU should i purchase? I think the APW3++ should be ok from what research i have done but maybe there are cheaper/ better options i don't know. I am also looking at getting a PDU and wondering what specifications i should be looking for with that, i am on a budget so the cheaper the better of course but ultimately i want to make sure that when i am mining it is safe i.e i don't overload the circuit and have an extra fire risk.

The specs of the miner are like this...
– DC voltage input: 11.60~13.00 V
– DC current input @12V DC: 98.8 A +7%
– DC Power @12V DC input: 1186 W +7%
– 220VAC Power @25℃, 93% conversion efficiency of APW3: 1275 W + 7%
– 220VAC Power efficiency @25℃,93% conversion efficiency of APW3: 1.56 mJ/MH + 7%

Am i right in thinking that the way to calculate amperage is by dividing the miner wattage around 1300w by the circuit volatge 250v so around 5.9amps for the miner? Also i think that in my house all the sockets in the downstairs part of the house are on the same circuit so thats quite a few devices etc, how do you know how much each circuit can handle?

As i said i will attach pictures to help anyone that understands electrics see how my setup is, all in all i am just a little confused with amps and how much a circuit particular circuit can handle. Any advice on how to understand and what psu/ pdu would be suitable for me would be greatly appreciated cheers guys!

P.S on a side note i live in a very hot country in the main part of summer July/Aug the temps regularly exceed 40+ celsius whats the best way to keep the miner cool? Or is it almost impossible at those temps?

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[SingMine]

****The best advice I can give is to have an electrician or at least someone familiar with electrics to visit you.****

If you have any doubt about it at all you should spend the call out fee and get a professional advice. Mining isnt worth burning your house down. Its very difficult to give accurate advice in a thread without knowing the age or installation of your electrics.

That said, you probably shouldn't have any issue running one miner in your house. Most electrical appliances dont draw much but pay attention to things like Kettles, irons, washing machines, dryers, electric heater or air conditioning. Too many of these on the same ring at the same time could in theory overload you.

Cooling and noise are another matter. You are aware how noisy they are arnt you? For cooling you can get 6 inch flexible ducting and try and draw in air from a cool part of the house (air con?) and also more importantly use the ducting to expel the warm air through a vent.

Or, send your miner to be hosted somewhere and not be concerned about any of the above. Depending on the cost of electricity where you live, you may find that it works out cheaper to have your miner somewhere like Canada or Iceland.

Enjoy!

[Pantoflascrypt017]

Thanks for the reply, you're probably right just need to find someone i can trust to give suitable advice and not try and upsell me on something that i wont need, i mean my house has 240v anyway so they can suggest that to me but anything else they say i might need i wouldn't know if they are genuinely offering it as something i need or just an extra way to get more money from me.

Actually now you mention it the washing machine will be in the same room as the miner, so obviously they'll be on the same circuit i guess, the washer wont be on 24/7 of course but when we have it running would that be a problem you think? Its the coolest room in the house and the best place to avoid the noise etc thats why it will be in there.

Do you have any reccommendations for places to host my miner if i decide to do that? How does it work, surely they take quite a hefty fee from you?

[SingMine]

In the UK house run 230v. the socket ring will start/end in the fuse box usually in a 32Amp breaker. (go check your fuse box; often the rings are labeled). So you can draw 32*230 = 7360W on the entire ring. The highest rated fuse you will find in an appliance plug (including your A3; and yes the Bitmain APW3++ is the easiest way to go). 13 *230 = 2990W, therefore the maximum total wattage you can have plugged into an individual socket is 2990W. I believe you need to not exceed 80% of maximum load (someone please correct if wrong) of this if you are running continuously (like a miner). 80% of 2990W is 2392W. So in theory each socket can draw a max of 2392W until you reach the total ring load of 5888 (80% of 7360W).

Typically a washer will be around 700W but may go higher for shorter periods of time. All appliances will have a sticker telling you the info.

The A3 is 1186W and a washer of 700W so these could both be on the same ring (probably best not to have them in the same socket), with quite a few other appliances.

Again, I am not an electrician so if anyone else here has and more informed information please chip in. If in doubt get it checked!!!! But one miner shouldn't cause you an issue. What country are you in?

Places to host? There are various companies in various countries, so check the forum. I have recently started hosting with KPM Hosting (kpmhosting.com) in Canada, they post on here so use the search function and stick KPM in it or email them from their website.

[pradobo]

Any kind of semiconductor requires cooling. T=20..25 C is perfect. Cheap option to use fan or put the miner outside to the balcony or basement. You can use any suitable PSU or multiPSU system. Server PSU are very reliable and efficient, but ATX are quiet and have 3-7 years warranty.
I'd recommend 2xBeQuiet! 750W Pure Power or Enermax Platimax 1700W. Do NOT use Chinese BTC PSU. They are very bad and even fire-causing.