The fifty amp plug is 240. They just go phase to neutral on two different legs, not phase to phase, so you never actually use 240 volts in the trailer. The fifty to thirty adapter just uses one phase to neutral...
So, yes, you'll be okay using the 50 to 30 adapter plug shown above...
-Red
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Somebody ought to clean these windows. There is a tremendous buildup of gook all over them...
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