At this time the inside of the trailer has a double pole breaker box. Isn't that the only way that I can use 220 input with 110 devices? One circuit is pos to neutral and the other circuit is neg to neutral? Each 110 circuit has a 20 amp breaker.
No such thing with AC current
. ... You are talking DC current, of which you don't have. Each of those single pole breakers only puts out 120 volts. There is no need for transformers of any kind for 120 volt service. ... 120 & 240 volt is the standard line voltage. This was changed in the US, from 110 & 220 I think in the 1960's (?). You get 240 volt service by using TWO 120 volt circuits together (120 + 120=240 volts). This is the US standard. European residential standard wiring is 230 - 250 volts based circuits (hot legs).
The outside of the trailer has nothing yet. But, I planned on using the generator 220 output and plugging this into an outside box which allows me to get better use of the total current. I was planning on a generator plug in something like this on the outside of the trailer
A US made common generator puts out 120 volts on two hot legs if the gen set can supply 240 volt service. There is no need for a transformer. You only need to match the outlet receptacle with a the correct MALE PLUG.
So, if I have a 220 plug on the outside of the trailer wouldn't I need a 110 to 220 converter to plug into it with 110 from a fair? I realize I could just run an extension cord into the trailer and use it from the inside.
1st) ... you didn't say what size the double pole main breaker was in the main panel. ... There should be incoming electrical wire to the main panel, are these in place? Or, do you have to install these wires?
I have the double pole breaker box installed as well as the wiring for lights as well as some electrical plugs. ...
I presume you are again referring to the main panel box: or another one?????
... I can change the input box to be 110 if necessary. I hope I have finally made myself clear on what my issues/questions are.
Is this another box outside the trailer??? You stated the outside has nothing.
OK .. since you stated the main breaker is double pole, it should be a 30 amp or a 50 amp breaker. If it is a 30 amp, I recommend changing it to a 50 amp. Pull out the existing breaker and take it to the hardware store and match it with a 50 amp replacement. You stated there is nothing on the outside, ... so next install incoming wire with 25 ft. of slack with a 50 amp male plug. Buy about 30 ft of 6/4 outside power cord; connect into the top of the power panel and put a 50 amp male plug on the outside end.
Now, buy or make a 30 amp male to 50 amp female pig-tail to use with 30 amp service boxes.
You should now be set to go.
<message edited by edwmax on Sun, 09/18/11 3:13 PM>