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  • electrical - How many amps per leg on a 220V circuit? - Home . . .
    220-240v in the U S is 2 legs of a single phase The 2 legs come off the transformer and have a center tap (the neutral) each leg to neutral is 120v or 240 leg to leg If it were part of a multi phase phase system the leg to leg value would not be the same as adding each leg to neutral voltage –
  • GFCI Required for 220v outlets? - Home Improvement Stack Exchange
    It is a 2020 NEC change 210 8(A) Dwelling Units All 125-volt through 250-volt receptacles installed in the locations specified in 210 8(A)(1) through (A)⁠(11) and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel
  • electrical - Old kitchen range only has 3-wires, how to wire correctly . . .
    Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
  • receptacle - What types of electrical outlets are found in a typical . . .
    Note, also, that you can perfectly well plug a 15 amp plug into a 20 amp outlet I have exactly that situation 3' from me--I had an electrician run an extra line, it feeds two pairs of 20 amp outlets (the cost of two pairs of 20 amp outlets vs a single pair of 15 amp outlets was only a few dollars )
  • 120v vs 240v Mini Split Efficiency - Home Improvement Stack Exchange
    Power wise equal btu's and equal seer rating should use the same power Depending on balance of load on half the transformer winding a 120v may produce an efficiency problem with the transformer, but I've never seen a study of the ability or inability of the residential meter to compensate for that
  • electrical - Can I do two 220V on a single line? - Home Improvement . . .
    I am in the process of adding subpanel This question is a continuation from my previous question Can I do two 220V receptacles on a single 20A line? The equipments will be drawing max 3A and 13A
  • electrical - Why Do 240V Circuits Not Require Neutral? - Home . . .
    All electric circuits require 2 "sides" or "legs" of power regardless of voltage or polarity be it a 12 v DC circuit in a car or a 120 v AC wall outlet or a 220 v dryer outlet 1 hot leg is 120 volts, 2 hot legs is 240 volts across both legs with a 120 volt circuit we only use 1 hot leg, so what is the 2nd leg going to be if not the other side
  • electrical - Can I use 2 black THHN wires for a 240v line? - Home . . .
    The answer is yes you can run your 2 hots the same color and they can be any color except white, gray, or green If your circuit is only 220 (240 in modern terms) you will also need a ground, the ground can be metallic conduit or if using pvc conduit a green is normally used
  • wire - Why is the neutral conductor sometimes undersized in AC . . .
    220 61 Feeder or Service Neutral Load (A) Basic Calculation The feeder or service neutral load shall be the maximum unbalance of the load determined by this article The maximum unbalanced load shall be the maximum net calculated load between the neutral conductor and any one ungrounded conductor
  • electrical - Should I use 12 2 or 12 3 to wire a 220V electric . . .
    Refer to the total amps for the heater Base the wire selection on this number The wire size should be xx 2 WITH GROUND Try to get wire with black and red conductors for 220 volts If the wires are black and white the white wire MUST be pemantly marked red or black Black and white conductors ar ok for 120 volt





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