208VAC current draw

Discussion in 'General Electronics Chat' started by Brian Pahlas, Oct 20, 2014.

  1. Brian Pahlas

    Thread Starter New Member

    Oct 20, 2014
    If we have a 220VAC L6-20 connection and we have a load of 2400W, then 2400W / 208V = 11.5 A.

    Is that 5.75 amps per hot leg ? Or can it not be expressed that way.

    Thanks for your help,
  2. pwdixon


    Oct 11, 2012
    So if i read this right an L6-20 connection is just a mains connector with a live, a neutral and an earth.

    How did 220VAC suddenly become 208V when you wanted to calculate the current?

    If by hot leg you mean live/neutral then the full current passes through both pins I'm afraid.
  3. Brian Pahlas

    Thread Starter New Member

    Oct 20, 2014
    We generally say 220V, but we really only get about 208V. I used 208V for a more accurate calculation, but it was not really necessary for this example.

    A NEMA L6-20 has two hot legs and a ground ( X, Y, G ) . This is being used to power a large projector.

    Thank you for your time and help.
  4. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    220/230/240vac is the standard voltage between the two phases of the residential power supplied in the USA. 110/115/120VAC is taken from neutral to either phase. 208vac is the voltage taken between any two phases of a three phase Y-system, with 120vac from any phase to neutral.