2 30 amp pigtail to a 50 amp

[roy2]

i am wondering i seen a 2 30 amp pigtail to a 50 wondering if they work at this camp ground im at now. some of the elect boxes have 2 30 amp pluges on them for 2 different spaces.has anyone used them.i had my 2012 montana i used the 30 amp plug and the 110 plug to the 50 amp. as i remember didnt work to good burned the 110 plug some. dont think i was able to run both a/c s at the same time. but now maybe i think i could since i can run both a/c s now on the 30 amp. only if the temp is below 91 when it goes over 91 it blows the breaker. also after i bought this monster while in az i was paying for my elect on my montana i was paying 92.00 a month for my elect for the last 3 months i was there useing the same amount elect before my elect bill was cut in half 42 bucks a month what a good suprize i had.so maybe those pigtails will work better this time.
have any of you tryed them yet?? there are a couple of parks we go just have 30 amp service. thanks roy

 

[danemayer]

Without getting into a technical explanation, let me just say that using this type of adapter could be dangerous because you don't know how the pedestal is wired.

 

[CDN]

Hello,

I have a double 30 to 50 amp adapter. Built by Progressive Industries.

Then two neutrals are tied together as well the two ground connections.

I use this in Ontario provincial parks. The pedestals are wired with 240 volts and each 30 amp has a separate breakers. I check with a voltmeter prior to use.

This will allow two AC's to be run plus water heater and any other load. I also have a Progressive EMS installed ahead of the Landmark power management system.

No GFCI on 30 amp no issues with that.


Brian

 

[danemayer]

If the two 30 amp breakers are on the same phase, then I believe your neutral wire in the coach could be carrying up to 60 amps. In a normal 50 amp pedestal, the two hot wires are on opposite phases, so the neutral is never carrying more than 50 amps.