Quote from: stompix on Today at 01:22:10 PM

Quote from: mikeywith on Today at 03:34:14 AM

Quote from: philipma1957 on October 05, 2023, 02:40:21 PM

you will use 5400 watts so you need a 30 amp 240 volt circuit

240v won't cut it for the hydro miners, you need 3 phases 380-415v (10A on each phase), depending on your country specs, for anyone who doesn't know what 3-phase wiring is, you can't just use three wires coming from the same phase and assume the miner will work, most houses will likely run on a single phase setup, so it won't be easy to supply 3 phase appliances,

Hmm, I don't get the part about the v here.
Speaking just for my area but in Europe, we've changed from 380v to 400v transmission before consumer so the phase is up from 220v to 230v but we are on 30A here so my 4000W oven has no trouble with it.

Isn't this more a thing of maximum kvA rather than voltage?

It reads that the psu takes 380-415ac

that's 3 phase.

which means 3 hot wires not 2.

most homes in usa have 2 separate 120volt hot wires which will give 240 volts single phase.

my mine is 3 phase 460 volts there are 3 hots which our transformer drops to 232 volts 2 hots

If you are buying this miner it is commercial if you are in USA as home do not have 3 phase.

thanks to mikeywith for finding that.

https://shop.bitmain.com/product/detail?pid=000202309271329420372NbWET50062F

Specifications
Purchasing Guidelines
Warranty
| Specifications

Product Glance
Model   S21 Hyd.
Algorithm | Cryptocurrency   SHA256 | BTC/BCH/BSV
Hashrate, TH/s(1-1)   335
Power on wall @35°C(1-2), Watt(1-1)   5360
Power efficiency on wall @35°C(1-2), J/TH(1-1)   16.0
Detailed Characteristics
Power Supply
Power supply AC Input voltage, Volt(2-1)   380~415V AC
Power supply AC Input Frequency Range, Hz   50~60
Power supply AC Input current, Amp(2-2)   12
Hardware Configuration
Networking connection mode   RJ45 Ethernet 10/100M
Miner Size (Length*Width*Height, w/o package),mm   339*163*207
Miner Size (Length*Width*Height, with package),mm   570*316*430
Net weight, kg   12.3
Gross weight, kg   13.6
Environment Requirements
Inlet water temperature, °C
NEM(2-3)

HEM1(2-3)

HEM2(2-3)

35

45

50

Water flow, L/min   8.0~10.0
Water pressure bar   ≤3.5
Working fluid(2-4)   Deionized water/Pure water
Liquid PH   8.5~9.5
Diameter of water pipe connector, mm   DN10
Storage temperature, °C   -20~70
Operation humidity(non-condensing), RH   10~90%
NOTE:

(1-1) The Hashrate value, Power on wall, and Power efficiency on wall are all typical values, The actual Hashrate value fluctuates by 3%, and the actual Power on wall and Power efficiency on wall fluctuate by 5%.
(1-2) Inlet water temperature.
(2-1) Caution: Wrong input voltage may probably cause server damaged.
(2-2) Three-phase AC input, 10 A per wire.
(2-3) NEM: Normal Energy Mode; HEM: High Energy Mode.
(2-4) If the water conductivity is ≥100 μs/cm, the fluid must be replaced. The water conductivity is less than 20 μs/cm when the system is running at the first time.