# 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
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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.

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
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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
2,584
234
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