Which way should it be wired?

[Tinstar]

My coach uses the Marinco 6364CRN Marine 3-Pole 4-Wire Female Electrical Connector to supply 50-Amp power to my coach. I have an extra Marinco plug (separate from my 50 amp power cord). I was thinking about getting a 30 amp cord and wiring it to the Marinco plug. I can eliminate the 30 to 50 amp adapter (dog bone) when only 30 amp is available AND I wouldn't have to drag out my 50 amp cord.

My question: Does it make any difference if I wire the 30 amp to L1 or L2? I wouldn't think it would make a difference but wanted some expertise before I did it.

Thanks for any help.

[BigRabbitMan]

dougrainer wrote:
You need to wire(jump) L1 and L2 together. If you do NOT, then your transfer switch will not work and if no transfer switch only 1/2 of the 120 breaker panel will have power. I have this type cord in our shop for ease of moving the cords and have built one that is 50 feet long which is cheaper than using a 50 foot long 4 wire 50 amp cable. We use them just to get quick 120 power to a 50 amp coach when we do not need more than 30 amps of power. Doug

My coach is wired for 50 amps, but I also did not like the heavy cord. But in my case, I replaced the heavy cord with a lighter 4 wire cord as both of my circuits are limited to 30 amps each at the coach and I can never draw an actual 50 amps. It made my life easier!!!

[crasster]

lakebum wrote:

CharlesinGA wrote:

lakebum wrote:
Not sure how that would help. Seems like it would be a lot easier to just use this adapter

Instead of that Camco PO$, how about a quality adapter such as this....

http://www.progressiveindustries.net/#!rv-30-50-adapter/c1uvx

I had a brand new Camco 30 amp plug the broker put on my cord before I bought it (dealer brokered it for an estate) but the Camco plug (same as on the adapter) is so tiny and cheesy, and only held together with two screws (and one of the new screws was broken off by the moron who put it on the cord) that it lasted just a day after I got home before I removed it and installed a half decent Leviton TT30 plug.

Don't get me wrong, Camco makes some good products, but their electrical stuff is not.

Charles

I will keep that in mind. I have not had any trouble with my adapters, I have a bunch of different configurations and they all are holding up fine so far.

Yes, I use those adapters as well an no problems.

[lakebum]

CharlesinGA wrote:

lakebum wrote:
Not sure how that would help. Seems like it would be a lot easier to just use this adapter

Instead of that Camco PO$, how about a quality adapter such as this....

http://www.progressiveindustries.net/#!rv-30-50-adapter/c1uvx

I had a brand new Camco 30 amp plug the broker put on my cord before I bought it (dealer brokered it for an estate) but the Camco plug (same as on the adapter) is so tiny and cheesy, and only held together with two screws (and one of the new screws was broken off by the moron who put it on the cord) that it lasted just a day after I got home before I removed it and installed a half decent Leviton TT30 plug.

Don't get me wrong, Camco makes some good products, but their electrical stuff is not.

Charles

I will keep that in mind. I have not had any trouble with my adapters, I have a bunch of different configurations and they all are holding up fine so far.

[dougrainer]

You need to wire(jump) L1 and L2 together. If you do NOT, then your transfer switch will not work and if no transfer switch only 1/2 of the 120 breaker panel will have power. I have this type cord in our shop for ease of moving the cords and have built one that is 50 feet long which is cheaper than using a 50 foot long 4 wire 50 amp cable. We use them just to get quick 120 power to a 50 amp coach when we do not need more than 30 amps of power. Doug

[Tinstar]

lakebum wrote:
Not sure how that would help. Seems like it would be a lot easier to just use this adapter

It would keep me from having to drag out 30 foot of 50 amp cable. Just dragging it out and rolling it back up later is a pita. I don't mind it at all if 50 amp service is available. I guess it might be easier for a one time thing but I often find campgrounds with only 30 amp service.

[time2roll]

Yes it matters L1 or L2.... so wire it to both same as a regular common adapter would be connected.

CharlesinGA wrote:
but a good EMS might report problems when it sees the same phase or waveform on one side

No trouble at all. They are specifically designed to work this way.

[CharlesinGA]

lakebum wrote:
Not sure how that would help. Seems like it would be a lot easier to just use this adapter

Instead of that Camco PO$, how about a quality adapter such as this....

http://www.progressiveindustries.net/#!rv-30-50-adapter/c1uvx

I had a brand new Camco 30 amp plug the broker put on my cord before I bought it (dealer brokered it for an estate) but the Camco plug (same as on the adapter) is so tiny and cheesy, and only held together with two screws (and one of the new screws was broken off by the moron who put it on the cord) that it lasted just a day after I got home before I removed it and installed a half decent Leviton TT30 plug.

Don't get me wrong, Camco makes some good products, but their electrical stuff is not.

Charles

[lakebum]

Not sure how that would help. Seems like it would be a lot easier to just use this adapter

[BB_TX]

The 50 to 30 adapter actually connects the L1 and L2 on the coach side together so that you have power to everything in the coach since the 30 amp end only has an L1.

I carry two power cords. A standard 50 amp cord for when I have 50 amp hookups. And a 30 amp cord with a 50 amp female (coach) end for when I only have 30 amp hookups. That 30 amp cord is much easier, especially in cold weather.

[CharlesinGA]

Ok, I deleted what I just wrote. You have a cord now that has a male on one end? (shore power pedestal end) and a female end on the other end of the cord, that plugs into a (recessed) male plug hardmounted on the vehicle? and you want to take a standard 30 amp RV cord and put another FEMALE end on it to mate to your vehicle?

If that is the case, yes, you can, and you should not have any problems. You may have a power management system that reports a dead input (L1 or L2 depending on how you wire it), and only part of the coach would be powered. You could add a L1 to L2 jumper to solve this, but a good EMS might report problems when it sees the same phase or waveform on one side, dunno, don't have any experience with this part of the equation at all.

Charles