I would love to be able to use the 6KW quiet diesel in my motorhome as a backup generator at the house. One problem is that the house needs 240V while the generator makes 120V. I have not had good luck finding 120V to 240V transformers. I am not an electrician but I remember something about isolation transformers changing the phase of the current but I don't remember if it is 180 degrees which is needed to make to 240V or only 90 degrees. Anyway, is there anyone out there with experience on this that has a good solution? I would like to be able to supply 4kw at reverse phase in case the load is off balance in the wrong direction.

You can feed both 120 volt legs of your house by jumping the one hot leg over to both legs off the house. You will not have 240 volts to power things like the stove, dryer, A/C, but both legs of the house power will be charged with 120 volts.

Good solution is to not power any of the 240V items...turn all those breakers off and do the above.

Get a manual transfer switch: https://www.homedepot.com/p/Reliance-Controls-50-Amp-10-Circuit-Manual-Transfer-Switch-A510C/206503336

If and when you rig things so you can use your RV genny for your home, remember that for safety's sake, install a transfer relay or manual switch in your home service. If you don't you WILL back feed power into the utility's grid and that could injure or kill some one. If you don't understand what to do, hire an electrician.

call an electrician. Have him install a Generator lock out to match your house panel. You cannot supply 240 volts from your gen. You will have access to any 120.

240V from 120V generator | Good Sam Community

25 Replies

cavie
Explorer
Jun 03, 2019
call an electrician. Have him install a Generator lock out to match your house panel. You cannot supply 240 volts from your gen. You will have access to any 120.
D_E_Bishop
Explorer
Jun 03, 2019
If and when you rig things so you can use your RV genny for your home, remember that for safety's sake, install a transfer relay or manual switch in your home service. If you don't you WILL back feed power into the utility's grid and that could injure or kill some one. If you don't understand what to do, hire an electrician.
pianotuna
Nomad III
Jun 03, 2019
Get a manual transfer switch: https://www.homedepot.com/p/Reliance-Controls-50-Amp-10-Circuit-Manual-Transfer-Switch-A510C/206503336
Ivylog
Explorer III
Jun 03, 2019
Good solution is to not power any of the 240V items...turn all those breakers off and do the above.
DownTheAvenue
Explorer
Jun 03, 2019
You can feed both 120 volt legs of your house by jumping the one hot leg over to both legs off the house. You will not have 240 volts to power things like the stove, dryer, A/C, but both legs of the house power will be charged with 120 volts.

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240V from 120V generator

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