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
    2
    0
    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

    Member

    Oct 11, 2012
    488
    56
    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
    2
    0
    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
    2,575
    230
    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.

    Ken
     
Loading...