how do you wire a 220v line for multiple miners in the US? - page 2.

mdude77

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Quote from: philipma1957 on September 04, 2017, 09:05:52 PM

just found this pdu and grabbed 2 of them

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

got this power cord

4 of them https://www.monoprice.com/product?p_id=24202

and will use 2 of these psu's for each pdu

http://www.parallelminer.com/product/2400-watt-power-supply-kit-for-gpu-mining-94-efficiency-200-240v-ethereum-eth-zec-dash/

How much power does a 741 *really* use? I have 245v at the wall, using the PSU above. When I have two 741s running off one PSU, the PSU sounds like a jet engine. When plugged into 3 of the 4 "cards" for two 741s, it sounds much better.

I've seen the 741 listed as using ~1150w, but I've also seen it say "+15%". Which is it? I have a killawatt, but it's the 110 version, so I can't measure the power usage.

Even if it's 1150w exactly, that's 2300w on a 2400w psu, which is pretty high imho. I'm thinking two PSUs for three 741s is a much better idea.

Thoughts anyone?

M

jstefanop

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Quote from: QuintLeo on September 05, 2017, 04:59:37 PM

If wire up multiple outlets, you don't NEED to use a PDU.

8-)

Yep my farm is made up of a bunch of these

6kw IOT PDU for 50 bucks worth of parts wired directly 30A breakers, with full control anywhere in the world on my iPhone Cheesy

QuintLeo

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If wire up multiple outlets, you don't NEED to use a PDU.

8-)

HashZilla

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Quote from: QuintLeo on September 05, 2017, 08:15:40 AM

Quote from: HashZilla on September 04, 2017, 05:16:12 PM

Here is my complete shopping list from panel to power supply...

Circuit Breaker to match your power panel
http://www.ebay.com/itm/NEW-SQUARE-D-HOM230CP-HOMELINE-30-AMP-DOUBLE-POLE-CIRCUIT-BREAKERS-6721344-/311302683815?epid=691118573&hash=item487b15fca7:g:fYcAAOSwPYZU7QzP

Some wire

A Device box
http://www.ebay.com/itm/Madison-Electric-MSB1G-One-Gang-Device-Box-with-Depth-Adjustable-/112438725322?hash=item1a2ddecaca:g:YFgAAOSw1x1UP4hK

An outlet
http://www.ebay.com/itm/Pass-Seymour-locking-receptacle-L6-30R-MADE-IN-U-S-A-30-amp-250V-twist-lock/390917364485?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Outlet cover
http://www.ebay.com/itm/NEW-LEVITON-Commercial-1-Gang-Stainless-Steel-Power-Outlet-Wall-Plate-84020-040/352146065381?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

APC 4-outlet PDU
http://www.ebay.com/itm/APC-AP9570-Basic-Rack-Power-Distribution-Unit-PDU-1U-208V-30A-Rack-Mountable/391768769897?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Power cords
http://www.ebay.com/itm/Monoprice-3ft-16AWG-Power-Extension-Cord-Cable-3-Conductor-PC-Mon-C13-C14-Black/371192776255?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Based on the cost of circuit breaker, wire and outlet the PDU would be cheaper.

You have to have the breaker anyway, no matter how you set the circuit up.
Same on the power cords.

When I rewired the heaters in my current location, it cost me less than $50 ALL UP to set up a pair of 20 amp 220 circuits with 3 outlets EACH (though 20/20 hindsight I'm thinking I should have put 4 or 5 on each - I might end up changing that eventually.)
I have NEVER seen a PDU that was $25 or less unless it was broken.

I was assuming you use 1 set of breaker/wire for each outlet as opposed to multiple outlets on 1 breaker.

QuintLeo

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Activity: 1498

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Quote from: HashZilla on September 04, 2017, 05:16:12 PM

Here is my complete shopping list from panel to power supply...

Circuit Breaker to match your power panel
http://www.ebay.com/itm/NEW-SQUARE-D-HOM230CP-HOMELINE-30-AMP-DOUBLE-POLE-CIRCUIT-BREAKERS-6721344-/311302683815?epid=691118573&hash=item487b15fca7:g:fYcAAOSwPYZU7QzP

Some wire

A Device box
http://www.ebay.com/itm/Madison-Electric-MSB1G-One-Gang-Device-Box-with-Depth-Adjustable-/112438725322?hash=item1a2ddecaca:g:YFgAAOSw1x1UP4hK

An outlet
http://www.ebay.com/itm/Pass-Seymour-locking-receptacle-L6-30R-MADE-IN-U-S-A-30-amp-250V-twist-lock/390917364485?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Outlet cover
http://www.ebay.com/itm/NEW-LEVITON-Commercial-1-Gang-Stainless-Steel-Power-Outlet-Wall-Plate-84020-040/352146065381?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

APC 4-outlet PDU
http://www.ebay.com/itm/APC-AP9570-Basic-Rack-Power-Distribution-Unit-PDU-1U-208V-30A-Rack-Mountable/391768769897?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Power cords
http://www.ebay.com/itm/Monoprice-3ft-16AWG-Power-Extension-Cord-Cable-3-Conductor-PC-Mon-C13-C14-Black/371192776255?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Based on the cost of circuit breaker, wire and outlet the PDU would be cheaper.

You have to have the breaker anyway, no matter how you set the circuit up.
Same on the power cords.

When I rewired the heaters in my current location, it cost me less than $50 ALL UP to set up a pair of 20 amp 220 circuits with 3 outlets EACH (though 20/20 hindsight I'm thinking I should have put 4 or 5 on each - I might end up changing that eventually.)
I have NEVER seen a PDU that was $25 or less unless it was broken.

mdude77

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Activity: 1540

Merit: 1001

Quote from: philipma1957 on September 04, 2017, 09:47:08 PM

Doesn't the 30 day warranty on the psu concern you?

M

Made by delta. It seems good
[/quote]

I mis-spoke. 30 day warranty.

I'd be concerned about it frying my mining equipment. Or worse.

It's like a car battery. You could get the cheap 30 day warranty one, or the more expensive 5-year warranty one.

Perhaps I'm jaded. I had bitmain PSU's blow a few days after their warranty expired. Never again will I buy a cheap PSU.

M

philipma1957

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'The right to privacy matters'

Quote from: mdude77 on September 04, 2017, 09:35:18 PM

Quote from: philipma1957 on September 04, 2017, 09:05:52 PM

just found this pdu and grabbed 2 of them

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

got this power cord

4 of them https://www.monoprice.com/product?p_id=24202

and will use 2 of these psu's for each pdu

http://www.parallelminer.com/product/2400-watt-power-supply-kit-for-gpu-mining-94-efficiency-200-240v-ethereum-eth-zec-dash/

Doesn't the 90 day warranty on the psu concern you?

M

Made by delta. It seems good

mdude77

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Activity: 1540

Merit: 1001

Quote from: philipma1957 on September 04, 2017, 09:05:52 PM

just found this pdu and grabbed 2 of them

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

got this power cord

4 of them https://www.monoprice.com/product?p_id=24202

and will use 2 of these psu's for each pdu

http://www.parallelminer.com/product/2400-watt-power-supply-kit-for-gpu-mining-94-efficiency-200-240v-ethereum-eth-zec-dash/

Doesn't the 30 day warranty on the psu concern you?

M

philipma1957

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Activity: 4116

Merit: 7849

'The right to privacy matters'

HashZilla

member

Activity: 89

Merit: 10

Here is my complete shopping list from panel to power supply...

Circuit Breaker to match your power panel
http://www.ebay.com/itm/NEW-SQUARE-D-HOM230CP-HOMELINE-30-AMP-DOUBLE-POLE-CIRCUIT-BREAKERS-6721344-/311302683815?epid=691118573&hash=item487b15fca7:g:fYcAAOSwPYZU7QzP

Some wire

A Device box
http://www.ebay.com/itm/Madison-Electric-MSB1G-One-Gang-Device-Box-with-Depth-Adjustable-/112438725322?hash=item1a2ddecaca:g:YFgAAOSw1x1UP4hK

An outlet
http://www.ebay.com/itm/Pass-Seymour-locking-receptacle-L6-30R-MADE-IN-U-S-A-30-amp-250V-twist-lock/390917364485?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Outlet cover
http://www.ebay.com/itm/NEW-LEVITON-Commercial-1-Gang-Stainless-Steel-Power-Outlet-Wall-Plate-84020-040/352146065381?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

APC 4-outlet PDU
http://www.ebay.com/itm/APC-AP9570-Basic-Rack-Power-Distribution-Unit-PDU-1U-208V-30A-Rack-Mountable/391768769897?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Power cords
http://www.ebay.com/itm/Monoprice-3ft-16AWG-Power-Extension-Cord-Cable-3-Conductor-PC-Mon-C13-C14-Black/371192776255?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Based on the cost of circuit breaker, wire and outlet the PDU would be cheaper.

fusion0389

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Activity: 324

Merit: 250

Quote from: QuintLeo on September 04, 2017, 03:49:23 PM

It might be less expensive to just wire up that 220v circuit with more than one outlet.

There is NO REASON you can't do so - it's just not the norm in North America since most "220 outlets" are intended for high load items like electric driers and electric water heaters and central air/VERY high capacity window air units that DO soak 15 amps or more even at 220 while low-load items are normally wired for 110.

DON'T do this if you don't know what you are doing though - just like ANY electrical work.

I've got to agree!!!

QuintLeo

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Merit: 1030

It might be less expensive to just wire up that 220v circuit with more than one outlet.

There is NO REASON you can't do so - it's just not the norm in North America since most "220 outlets" are intended for high load items like electric driers and electric water heaters and central air/VERY high capacity window air units that DO soak 15 amps or more even at 220 while low-load items are normally wired for 110.

DON'T do this if you don't know what you are doing though - just like ANY electrical work.

fusion0389

sr. member

Activity: 324

Merit: 250

Quote from: mawk01 on September 04, 2017, 01:31:05 PM

Quote from: mdude77 on September 03, 2017, 07:44:42 PM

Quote from: Flying Hellfish on September 03, 2017, 07:29:30 PM

Just bring an L6-30R to the "rack" level and use a PDU like this for local distribution.

https://www.tripplite.com/5-5.8kw-single-phase-basic-pdu-208-240v-outlets-6-c19-32-c13-l6-30p-10ft-cord-0u-vertical~PDUV30HV/

This was the first one I found but there's tons of different ones, APC/Schneider has a big range of them as well. North American Data Centre's are full of these things.

They come in basic, metered or fully monitored flavours and price can get up there!

Edit: Also look at the 1U horizontal versions as well, less outlets than the monster above and a lot smaller.
Like these ones: https://www.tripplite.com/products/power-distribution-units-pdus~15?1692=Basic

Thank you very much! I knew they had to exist, I just didn't know what to search for.

M

Hey guys...I'm in the US, and getting a workshopped wired for 240v right now....so I ordered a couple of these....but they came with a plug like below??

http://www.ebay.com/itm/Perfect-EMC-100-885-137-Rack-PDU-Power-Strip-200-240VAC-24A-Carling-Technologies/142494153802?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D46089%26meid%3D0c601e5b7ae84320b3b0339dfa1c75f3%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D401192529590&_trksid=p2047675.c100005.m1851

Can anyone tell me what I'm to do with that? Thanks...

looks proprietary.. not worth trying to fool with it imo. trash it and get one with a common plug.

fusion0389

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Activity: 324

Merit: 250

Quote from: mdude77 on September 03, 2017, 10:07:17 PM

Quote from: philipma1957 on September 03, 2017, 09:26:37 PM

eBay has good used ones

wait for a link

use 10 gauge wire and only one of these to your circuit breaker box 30 amp double pole 240 volt breaker

http://www.ebay.com/itm/L6-30R-Turn-Twist-Lock-Locking-Receptacle-Outlet-30A-250V-2P-3W-L6-30-U9W2-/122602838371?

good item below can do

24 amps x 240 = 5760 watts if you are lucky you get 239-241 volts from the power company

or 24 amps x 220 = 5280 watts if you are not lucky you get 219 -223 volts from power company

http://www.ebay.com/itm/EMC-100-885-137-12-Outlet-PDU-Circuit-Breaker-200-240VAC-24AMP-100-885-138-/331940002835?

4 avalon 741's pretty easy

5 meh maybe maybe not. depends on heat and volts.

Thanks. Seems the PDU should be 30a, not 24?

M

Go with as high of an AMP rating as you can get. You never want to run your equipment at 100% of their design limit. 80% of the limit is generally considered safe for 24/7 use. I used 8 AWG copper cable between my breaker and the L630 receptacle as it has an ampacity of 40 amps so that gave me the overhead i was comfortable with.. From there, a used PDU from ebay is all you need just like phil suggested.

mawk01

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Activity: 128

Merit: 100

Quote from: mdude77 on September 03, 2017, 07:44:42 PM

Quote from: Flying Hellfish on September 03, 2017, 07:29:30 PM

Just bring an L6-30R to the "rack" level and use a PDU like this for local distribution.

https://www.tripplite.com/5-5.8kw-single-phase-basic-pdu-208-240v-outlets-6-c19-32-c13-l6-30p-10ft-cord-0u-vertical~PDUV30HV/

This was the first one I found but there's tons of different ones, APC/Schneider has a big range of them as well. North American Data Centre's are full of these things.

They come in basic, metered or fully monitored flavours and price can get up there!

Edit: Also look at the 1U horizontal versions as well, less outlets than the monster above and a lot smaller.
Like these ones: https://www.tripplite.com/products/power-distribution-units-pdus~15?1692=Basic

Thank you very much! I knew they had to exist, I just didn't know what to search for.

M

Hey guys...I'm in the US, and getting a workshopped wired for 240v right now....so I ordered a couple of these....but they came with a plug like below??

http://www.ebay.com/itm/Perfect-EMC-100-885-137-Rack-PDU-Power-Strip-200-240VAC-24A-Carling-Technologies/142494153802?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D46089%26meid%3D0c601e5b7ae84320b3b0339dfa1c75f3%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D401192529590&_trksid=p2047675.c100005.m1851

Can anyone tell me what I'm to do with that? Thanks...

mdude77

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Activity: 1540

Merit: 1001

Quote from: bdog1234 on September 04, 2017, 02:20:28 AM

Your welcome. Just be careful. If you are not familiar or comfortable doing this type of thing consult an electrician. I am not an electrician but I have wired up several shops, wells, etc and felt comfortable doing it myself.

Remember these loads are continuous so any standard amp ratings you see you need to multiply by .8 for example 12 ga wire normally on a 20 amp circuit is only good for 16 amps continuous.

Understood. I'm building everything for no more than 80% capacity.

I did some quick math and it seems that the improved efficiency of using 220 instead of 110 will pay for itself in the long run, especially if your electricity is > $0.01/kWh.

M

Philopolymath

sr. member

Activity: 558

Merit: 295

Walter Russell's Cosmogony is RIGHT!

SERIOUSLY? are you kids too lazy or too incompetent to do a simple google search..or both...

How to set up 220v

www.youtube.com/watch?v=DqefJ2MQrRo&t=10s

Plug and receptacle
www.homedepot.ca/en/home/p.20-amp-flush-receptacle-250v6-20r.1000174840.html

HashZilla

member

Activity: 89

Merit: 10

Has anyone found a cheaper plate than this...

http://www.ebay.com/itm/Leviton-DuraPort-Industrial-1G-1-Port-Stainless-Steel-Wallplate-Cover-D6710-1S1/232466298672?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D46086%26meid%3Daed7f2dbb6d74a7b81d205438c320d46%26pid%3D100011%26rk%3D2%26rkt%3D4%26sd%3D391851141961&_trksid=p2047675.c100011.m1850

bdog1234

full member

Activity: 132

Merit: 100

Your welcome. Just be careful. If you are not familiar or comfortable doing this type of thing consult an electrician. I am not an electrician but I have wired up several shops, wells, etc and felt comfortable doing it myself.

Remember these loads are continuous so any standard amp ratings you see you need to multiply by .8 for example 12 ga wire normally on a 20 amp circuit is only good for 16 amps continuous.

mdude77

legendary

Activity: 1540

Merit: 1001

Quote from: bdog1234 on September 04, 2017, 12:27:22 AM

It is easy and cheap to wire up a subpanel. The subpanel boxes are $30 or so run a heavy wire on a big breaker to it and then use smaller breakers and wire for each miner. All available at Home Depot.

I ran 4 ga wire to a sub panel on 70 amp breakers and put 8 110v 20 amp breakers in it. It will power 8 miners.

That's a decent idea. Thank you.

M

Topic: how do you wire a 220v line for multiple miners in the US? - page 2. (Read 2096 times)