Which transformer do you recommend for 2 Antminer D3?

[may142012]

Hi, i am from USA and new to mining, i don't want to break the circuit in my house for running the miners for 24/7. So which transformer do you recommend to run at least 2 Antminer D3 or even S9? I have been looking for something like this. http://www.ebay.com/itm/5000-Watt-Heavy-Duty-Voltage-Regulator-Converter-Transformer-Step-Up-Down-5000W/361930490550?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

[philipma1957]

Hi, i am from USA and new to mining, i don't want to break the circuit in my house for running the miners for 24/7. So which transformer do you recommend to run at least 2 Antminer D3 or even S9? I have been looking for something like this. http://www.ebay.com/itm/5000-Watt-Heavy-Duty-Voltage-Regulator-Converter-Transformer-Step-Up-Down-5000W/361930490550?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

won't work

is it your home   put in a 30 amp   240 volt line  use 10 gauge wire .

I have a link

wait for it.


this is exactly the way to go

https://bitcointalk.org/index.php?topic=2192299.msg22020934#msg22020934

okay  a 30amp pdu  like this


http://www.ebay.com/itm/Genuine-HP-EO4501-Server-Power-Distribution-Module-228481-002/232449268221?


has 4 sockets    

it is rated at 24 amps internally to protect your  30 amp circuit breaker.   that complies with  the 80% derating.   it is a cheap price for good used gear



it can run 4 of these  psu's  at 1300 watt draw each


http://www.parallelminer.com/product/2400-watt-power-supply-kit-for-gpu-mining-94-efficiency-200-240v-up-to-24-gpu/

 buy 4 of these
https://www.monoprice.com/product?p_id=24206


buy 4 of these pico psu's

https://bitcointalk.org/index.php?topic=2040729.msg20802414#msg20802414



this setup above will do 4x  1300 watt rigs  safely on a 30 amp  220/240 breaker  with an  l6-30r

http://www.ebay.com/itm/Pass-Seymour-locking-receptacle-L6-30R-MADE-IN-U-S-A-30-amp-250V-twist-lock-/390917364485?




and the 30 amp circuit breaker for 240 volts  needs to use 10 gauge wire to that  l6-30r   



cost for all above is about


50-60   pdu
420      psu's    oh use   code slush  for 5% off
 20      power cords   
 10      l6-30r
100     for the pico psu's

about  600  bucks    to run   24 gpus on four 6 card rigs.


don't cheap out all the shit above works is tested and should work for years.
[/quote]

in your case  you could buy 2 psu's since you want less power.

and you could expand later.

[NotFuzzyWarm]

Ditto to what Phil said.
Every single one of those Consumer-grade step/up/down transformers are a piece of shi**. Tried that route several years ago and despite only pulling 1,400w each from 2 of those - both rated for '3kW - they were literally crispy fried in less than a month. There is a reason they are so cheap - very thin wire in the primary and secondaries along with simple paper insulation.

If you absolutely need to use a transformer, get a REAL commercial/industrial rated one from Grainger, McMaster or AutomationDirect.com. They are absolutely bullet-proof.

[philipma1957]

Ditto to what Phil said.
Every single one of those Consumer-grade step/up/down transformers are a piece of shi**. Tried that route several years ago and despite only pulling 1,400w each from 2 of those - both rated for '3kW - they were literally crispy fried in less than a month. There is a reason they are so cheap - very thin wire in the primary and secondaries along with simple paper insulation.

If you absolutely need to use a transformer, get a REAL commercial/industrial rated one from Grainger, McMaster or AutomationDirect.com. They are absolutely bullet-proof.

yeah but  cost wise  it is a losing  game  a quality one runs 250 usd and will do 1500 watts  he would need  to spend  250 for 1 transformer and say 120 for a server psu  total cost of 370 to run 1 s-9


and this is   370 

https://www.evga.com/products/product.aspx?pn=120-G2-1600-X1

it will run 1 s-9

if he did what I said  600 + say 200 to the electrician for the 220/240 line

total 800  and he can run 4 s-9s

vs 4x 370 = 1480 to run 4 s-9s  with 120 volt outlets and every out let  must be the only thing on the circuit.

[NotFuzzyWarm]

Ditto to what Phil said.
Every single one of those Consumer-grade step/up/down transformers are a piece of shi**. Tried that route several years ago and despite only pulling 1,400w each from 2 of those - both rated for '3kW - they were literally crispy fried in less than a month. There is a reason they are so cheap - very thin wire in the primary and secondaries along with simple paper insulation.

If you absolutely need to use a transformer, get a REAL commercial/industrial rated one from Grainger, McMaster or AutomationDirect.com. They are absolutely bullet-proof.

yeah but  cost wise  it is a losing  game  a quality one runs 250 usd and will do 1500 watts  he would need  to spend  250 for 1 transformer and say 120 for a server psu  total cost of 370 to run 1 s-9

and this is   370  
https://www.evga.com/products/product.aspx?pn=120-G2-1600-X1
it will run 1 s-9. if he did what I said  600 + say 200 to the electrician for the 220/240 line

total 800  and he can run 4 s-9s  vs 4x 370 = 1480 to run 4 s-9s  with 120 volt outlets and every out let  must be the only thing on the circuit.

Exactly. As I hopefully implied there are reasons that a commercial/industrial xmfr is (substantially) more expensive than the crappy 'international voltage converter' transformers are. A real one has to pass all codes and even under full load will last many many decades.

Point is - is ALWAYS better to just bite the bullet and get proper 220V power. Got an unused electric dryer outlet in the laundry room?