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Topic: I need help with amps and S7... - page 2. (Read 1959 times)

legendary
Activity: 1302
Merit: 1068
January 26, 2016, 12:13:42 AM
#9
Are you using a 240v/30 amps (breaker) or 120v/30 amps? Based on the calculations you would definitely need 30 amps with 120v. I didn't plan to use a PDU. Just an EVGA or Bitmain's PSU plugged directly into the outlet.

Does 30 amps help them run more efficiently? So am I still correct to assume I can run 2 miners on a 240v/30 amp circuit (basically use top and bottom of the outlet). I have the power available.

Better power density. And with all the people reporting miner failure because of electric surge, you'd probably want to use surge protectors and PSU with UVP/OVP, like the EVGAs.
member
Activity: 79
Merit: 10
January 26, 2016, 12:06:01 AM
#8
Are you using a 240v/30 amps (breaker) or 120v/30 amps? Based on the calculations you would definitely need 30 amps with 120v. I didn't plan to use a PDU. Just an EVGA or Bitmain's PSU plugged directly into the outlet.

Does 30 amps help them run more efficiently? So am I still correct to assume I can run 2 miners on a 240v/30 amp circuit (basically use top and bottom of the outlet). I have the power available.
legendary
Activity: 1456
Merit: 1000
January 25, 2016, 11:41:15 PM
#7
I've gotten feedback on some other sites saying 20 amps is the way to go. The calculations are: S7 uses roughly 1300watts...so 1300w / 240v = 5.41 amps...so each S7 needs around 6 amps. If you put an outlet with two available plug sockets on the 240v/20amp circuit then that would be ideal. You could run two miners on your 240v/20 amp circuit. Other input is appreciated as I am not an electrician.

Any reason they went with the 20 amp?   Unless it is you don't have the extra amps I would go 30 amps.

You will thank me when you get a 30 amp PDU and have 30 amps worth to power miners vs 20.   I don't see an advantage of 20 unless it's all you can handle.  I personally went 30 as I had enough amps and wanted 30 amp PDU vs 20 amp PDU.
legendary
Activity: 1302
Merit: 1068
January 25, 2016, 09:46:55 PM
#6
I've gotten feedback on some other sites saying 20 amps is the way to go. The calculations are: S7 uses roughly 1300watts...so 1300w / 240v = 5.41 amps...so each S7 needs around 6 amps. If you put an outlet with two available plug sockets on the 240v/20amp circuit then that would be ideal. You could run two miners on your 240v/20 amp circuit. Other input is appreciated as I am not an electrician.

Ahh, be careful, the S7 power consumption at the wall is now 1410-1480 depending on PSU efficiency, so if you come up with tight calculation, you could bust.
member
Activity: 79
Merit: 10
January 25, 2016, 09:44:58 PM
#5
I've gotten feedback on some other sites saying 20 amps is the way to go. The calculations are: S7 uses roughly 1300watts...so 1300w / 240v = 5.41 amps...so each S7 needs around 6 amps. If you put an outlet with two available plug sockets on the 240v/20amp circuit then that would be ideal. You could run two miners on your 240v/20 amp circuit. Other input is appreciated as I am not an electrician.
legendary
Activity: 1456
Merit: 1000
January 25, 2016, 08:55:33 PM
#4

I think your looking at wrong examples.  His electrician asked how many amps on 240..... so were talking about a breaker. Example - http://www.amazon.com/Siemens-Q230-240-Volt-Circuit-Breaker/dp/B00002N5HJ

I think 30 amps as long as electrician say's you have that much you can do.  But I was hoping someone else would agree, or comment better if there is a better option to tell electrician.   
hero member
Activity: 1063
Merit: 502
RIP: S5, A faithful device long time
legendary
Activity: 1456
Merit: 1000
January 25, 2016, 04:12:52 PM
#2
I plan on installing 240v outlets for my new S7's. My electrician is asking how many amps? I cannot find this information on the Bitmain website. Thanks as always!

I suggest reading on 240 a little more.  He is asking about the breaker amps.   I personally would ask 30 if your breaker box can handle it.  Then get a 30 amp PDU, make sure he put's in the plug that you need for the PDU.

Wait for someone else to confirm before you tell him.  But I would say 30 as long as you can handle it. 
member
Activity: 79
Merit: 10
January 25, 2016, 01:05:47 PM
#1
I plan on installing 240v outlets for my new S7's. My electrician is asking how many amps? I cannot find this information on the Bitmain website. Thanks as always!
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