I am trying to power something that requires 16A of current using 3 different power supplies.


  • I am not sure how much current my power socket can output or how I might go about checking this.

  • I am assuming for now that it is only 10A just to be safe.

  • I am wondering if there is any way that I can power this thing that requires 16A of current.

Possible solution

In the instructions it says:

if operating at home, please power it via two sockets located on separate power rails

I am not exactly sure what this means or if I even have two separate power rails. Could someone please explain to me how I might go about using two separate power rails?

Thank you!


closed as off-topic by Brian Carlton, Enric Blanco, Wesley Lee, laptop2d, R Drast May 8 '17 at 14:09

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design." – Brian Carlton, Enric Blanco, Wesley Lee, laptop2d, R Drast
If this question can be reworded to fit the rules in the help center, please edit the question.

  • 4
    \$\begingroup\$ Need more detail. For starters: What is it? \$\endgroup\$ – Dampmaskin May 7 '17 at 21:14
  • \$\begingroup\$ This sounds sketchy. Does it have two separate power cords? This is not normal, and potentially unsafe. It is common in server computers to have two or more power supplies connected to multiple circuits for redundancy, but then you want each one to be able to handle the full load in case one breaker flips. Combining outlets to increase current capacity is at the very least uncommon. \$\endgroup\$ – Evan May 7 '17 at 22:33

Your profile idicates you are in Seattle WA, so I would assume your AC outlets are protected by 15 Amp circuit breakers, so you should restrict the load on any one circuit to 12 Amps.

You should therefore, plug your device into two independent (not fed from the same breaker) outlets.

  • 1
    \$\begingroup\$ Modern code in the US actually exclusively uses 20 breakers and wiring (AWG 12) for standard outlet circuits. 15 amp circuits (AWG 14) are only used for lighting or other fixed loads, or maybe if a circuit feeds only a single outlet. The standard NEMA 5-15 outlet is still a 15 amp outlet, and older wiring may use true 15 amp circuits. \$\endgroup\$ – Evan May 7 '17 at 22:19
  • 2
    \$\begingroup\$ Not even clear that it is AC, though. The terminology is "power rails." A strange terminology if one is describing mains AC outlets, in my opinion. \$\endgroup\$ – mkeith May 7 '17 at 22:29
  • \$\begingroup\$ @Evan: Thanks - I'm in Canada, and I think 15 amp circuits are common here for outlets. If the OP's outlets are fed from 20 amp breakers, he is probably safe using a single circuit, provided there are no other significant loads on it. \$\endgroup\$ – Peter Bennett May 7 '17 at 23:25
  • 1
    \$\begingroup\$ @pudility: the 50 Amp circuits are likely to be 240 volt, for electric stove, and probably electric heating - I can't think of any other reason for a 50 A circuit. These circuits likely won't have a readily-accessible outlet. (if in a workshop, one may be an outlet for a welder.) \$\endgroup\$ – Peter Bennett May 8 '17 at 0:12
  • 1
    \$\begingroup\$ Yeah, higher current circuits have special outlets, you won't find a 50 amp breaker feeding a standard outlet, that would be a gross code violation. \$\endgroup\$ – Evan May 8 '17 at 3:38

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