Forum Discussion
Bob_Landry
Jan 23, 2014Explorer
Bull Rider wrote:
Thanks for the input, I found a couple that will work, and some of the links are spot on. Look like 150 to 200 bucks is the going price.
I noted by surfing the web that many RVer's use these adapters to split out a 50 amp. service to two 30 amps for two RV's. Or the run one 30 amp to their RV and then use a 20 amp converter on the other leg to run a free standing A/C or other HD appliance.
For some reason his boat electrical won't function properly unless both 30 amp connectors are being fed. And I thought that RV electric was complicated.
Thanks again for the input.....
I built mine for about $75. I've seen the Marinco version online for a little over $100, but you'll have to do some surfing.
Interesting that his boat has to have both legs plugged in to work properly. I've done a lot of marine electrical work and have never run across that. If he has an auto-transfer switch in the mix, it could possibly be related to that. I can't think of anything that's shared that would require both power sources, but those boats have been around for a while and I've seen some pretty creative wiring done by unknowing owners.

About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,262 PostsLatest Activity: Jun 12, 2025