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.
Topic: how do you wire a 220v line for multiple miners in the US? - page 3. (Read 2153 times)
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.
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
I don't want to speak for philipma1957 but basically with the load you will be putting on the circuit a 24A PDU should work. The issue isn't putting the 24A PDU on the 30A circuit the issue could come if you go over the 24A rating on the PDU (by adding more than the 4 miner load) as the 30A circuit won't clamp before the 24A PDU is overloaded. If the PDU is protected locally it should trip, if not then shit will get hot, melt and spark and maybe other bad shit.
Line voltage matters because circuits are just thermal protection. 240 will allow more watts drawn than 220 as the math above shows before reaching the 24A thermal limit. A "220V" NEMA rated PDU will be rated for voltages from 200-250 Volts at whatever amps it is designed for.
In the real world people don't generally allow or put branch circuitry with lower thermal protection than the breakers (with the exception of 15A receptacles on 20A circuitry in houses, but that's a whole different discussion!). The potential to overload the outlets is to great to allow this as common practice.
Bitcoin mining is about shaving costs to maximize profit. If you understand the mechanics, can do the math and are comfortable with it then hey certain options present themselves!
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.
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
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
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
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.
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
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
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
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
It seems life can be challenging for the US based miner who wants to use a 220v line for efficiency.
Let's use the Avalon 741 miner for example. It pulls ~1150 watts. That's as much as you can do on one 15 or 20 amp 110v circuit in the US.
However, if you have a 30 amp 220v circuit, you theoretically could have up to 4 of them on one circuit. 1150 / 220 = 5.2amps per unit. 80% of 30a is 24a. 5.2 * 20.9a, well within 80% tolerance.
But how do you wire the thing? Do 30a 220v power strips exist? Or do you daisy chain normal 20a 220v outlets together? The power strip idea seems the best, however I don't seem to be able to find any online.
Thanks for the input!
M
Let's use the Avalon 741 miner for example. It pulls ~1150 watts. That's as much as you can do on one 15 or 20 amp 110v circuit in the US.
However, if you have a 30 amp 220v circuit, you theoretically could have up to 4 of them on one circuit. 1150 / 220 = 5.2amps per unit. 80% of 30a is 24a. 5.2 * 20.9a, well within 80% tolerance.
But how do you wire the thing? Do 30a 220v power strips exist? Or do you daisy chain normal 20a 220v outlets together? The power strip idea seems the best, however I don't seem to be able to find any online.
Thanks for the input!
M
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