You should be able to find a 30A-50A long Adapter from WALMART but can also be ordered from AMAZON.
This is a diagram what you need to pickup. The 30A side has MALE connectors and the 50A side has FEMALE connectors.
Google Image
You can see in the diagram that the two hots are tied together so the 30A SERVICE will feed both of your 50A legs in your trailer.
Here is another diagram showing this example.
As stated above you will have to watch which high wattage appliances are being used at the same time as you only have a total of 30AMPS to use from the generator. If you try to use both air conditioners at same time it will trip the 30A GENERATOR BREAKER.
Roy Ken
