Re: 240 V breaker/phase question
- From: "Jeff" <jrw8888@xxxxxxxxx>
- Date: Mon, 31 Oct 2005 18:25:27 GMT
Your question is a little unclear to me. My answer would be any 240V
appliance must be fed by the proper size double breaker so that if one leg
trips, they both trip or if you turn off the breaker to replace the plug for
example, you will be turning off both legs.
<zaphoidbe@xxxxxxxxxxx> wrote in message
news:1130777732.646316.23870@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>I am getting ready to install a 2000W 240V heater that will be supllied
> by a 30A subpanel running off the main panel (10/3 w/g).
>
> I have a "1/2 size" dual 15A breaker I pulled out of the main panel a
> while ago, but was thinking I will need a full size breaker, so that
> the two 120V suppies to the heater will be running off different phases
> in the subpanel. The way the 1/2 size breaker feeds off the main panel
> is through only one "side", so that both 120V to the heater will be
> essentially supplied by the same 120V feed from the main panel, so the
> two 120Vs to the heater will be "in phase". If I use a standard size
> breaker, then it will bridge the two sides of the subpanel, so it will
> supply the heater with two 120V from different phases. Is this a
> correct assumption?
>
> thx
>
.
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