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GordonThree's avatar
GordonThree
Explorer
Aug 01, 2014

30 amp to 30 amp Y cable?

cable wired like this: 30 amp male to two 30 amp female

Does such a beast exist, how would you search for it?

I find plenty of 50 amp male to two 30 amp female cables.

Was recently at an older CG that didn't have spots very well defined, so there were 2 trailers trying to share a power box with only a single 30 amp outlet (and the 15 amp was there but...) rather than flip a coin or come to blows over who's 30 amp outlet it was (not marked btw), I was thinking a y-cable would be a good compromise. sure neither rig could draw the cull 30 amps all the time, but the surge current would be there that the 15 amp just can't supply.

20 Replies

  • Bobbo's avatar
    Bobbo
    Explorer III
    I use a 30 amp male to 15 amp female adaptor plugged into my 30 amp outlet in the garage. It lets me use that plug for my 120v air compressor. The only time I use the 30 amp outlet for 30 amps is when I move the RV into the driveway to load/unload. I can run the A/C while parked. I don't use the adaptor then.
  • I made a 50 amp male to two 30 amp female pigtails so I could pick the best side of the outlet for my RV. if I was building something I would build that and then just use a 30 amp to 50 amp adapter to feed it?
    bumpy
  • GordonThree wrote:
    strange what they decide to mass produce ... I picked up an interesting adapter from Camco a few days back... it lets me plug a 15 amp cordset into a 30 amp outlet... that's 30 amp male and 15 amp female.

    So some Joe could plug a 100 ft L-cheapo 16 gauge extension cord into a 30 amp outlet, and make it glow at night without tripping the 30 amp breaker.
    I use one all winter. My Jeep and camper park next to each other, and the only plug on the outside of my garage in that spot is my 30 amp. So, I use one of those adapters instead of wiring in another outlet, so I can use my block heater.
  • What kind of nuthouses are some of you staying in?

    When I built the (small) park in Las PeƱas, I ran three six gauge wires to each pedestal, each featuring 50-amp ganged 240 breakers, and a duplex fed with a 20 amp site breaker and 10-gauge.

    It's not reassuring reading to realize that many of you are staying in places seemingly built by Snuffy Smith. I can forgive Mexicans wiring things like they were strings of outdoor Christmas lights but you folks are Americans.
  • Sounds like you are trying to get 60 amps from 30 amp CB. Can't happen.
  • Golden_HVAC wrote:

    Many times the campground owner feeds a site with a 30 amp circuit breaker, and then might have a 30 and 20 amp circuit breaker in the power post at your site. So you might not be able to use the 20 amp and 30 amp without tripping the main feeding the campsite, depending on how it was wired of course.

    I was at one campground with a split wired 20 amp receptacle at each site. SO basically I had to use a 30 to 15 amp adapter, then the neighbor also used a 30 to 15 amp adapter, even though both sides of the normal household plug in where wired to two separate circuit breakers. (yes this happens - even in your own home where they wire the washing machine and dryer in your own laundry room). It worked, but I Was not happy, and did not need to run the A/C that night. Good thing I guess.

    Good luck with your problem!

    Fred.


    30 amp female to 15 amp male I can understand... I use one all the time with my generator. but flip that around, just seems dangerous. I guess the adapter assumes the other end of the cordset will have a 15 amp breaker.
  • What makes you think that there is a 15 amp breaker on the 15 amp receptacle? You would be better off using a 15 amp receptacle than sharing a 30 amp, with someone trying to use a air conditioner on it. When both A/C's are running on 30 amps, you would trip it with just the additional load of the battery chargers.

    Working with a full 20 amps is better. Hopefully it is not to hot, as your A/C will draw more amperage while it is warmer.

    Many times the campground owner feeds a site with a 30 amp circuit breaker, and then might have a 30 and 20 amp circuit breaker in the power post at your site. So you might not be able to use the 20 amp and 30 amp without tripping the main feeding the campsite, depending on how it was wired of course.

    I was at one campground with a split wired 20 amp receptacle at each site. SO basically I had to use a 30 to 15 amp adapter, then the neighbor also used a 30 to 15 amp adapter, even though both sides of the normal household plug in where wired to two separate circuit breakers. (yes this happens - even in your own home where they wire the washing machine and dryer in your own laundry room). It worked, but I Was not happy, and did not need to run the A/C that night. Good thing I guess.

    Good luck with your problem!

    Fred.
  • strange what they decide to mass produce ... I picked up an interesting adapter from Camco a few days back... it lets me plug a 15 amp cordset into a 30 amp outlet... that's 30 amp male and 15 amp female.

    So some Joe could plug a 100 ft L-cheapo 16 gauge extension cord into a 30 amp outlet, and make it glow at night without tripping the 30 amp breaker.
  • No, you are not going to find anything like that. You certainly could make one but there's no reason anyone would mass produce such a device. I am not even sure what kind of side effects such a device might have on one RV or the other.

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