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Old 09-12-2015, 02:12 PM   #11
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You can't determine what breakers are attached to which leg of the incoming power in a 50A distribution panel from a picture like Oakman's. You can assume that the breakers are distributed to both sides of the power line.

The disttribution of power is controlled by the design of the buss bars that the breakers plug in to. Most breaker boxes are designed with adjacent breakers connected to different legs of the power line which facilitates installing a double breaker for a 220V appliance. RV boxes may not be designed this way to decrease costs.

If you want to see how the power is distributed, you'll need to remove the individual breakers and examine the structure of the buss bars behind them.

Phil
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Old 09-12-2015, 05:34 PM   #12
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Old 09-12-2015, 06:04 PM   #13
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Originally Posted by pmsherman View Post
You can't determine what breakers are attached to which leg of the incoming power in a 50A distribution panel from a picture like Oakman's. You can assume that the breakers are distributed to both sides of the power line.

The disttribution of power is controlled by the design of the buss bars that the breakers plug in to. Most breaker boxes are designed with adjacent breakers connected to different legs of the power line which facilitates installing a double breaker for a 220V appliance. RV boxes may not be designed this way to decrease costs.

If you want to see how the power is distributed, you'll need to remove the individual breakers and examine the structure of the buss bars behind them.

Phil
I can understand that pmsherman, but from what I have observed they seem to be set up like the very first pic I posted in the opening post. The label on that 50 amp distribution panel clearly shows the L1 and L2 sides (it shows line 1 and line 2) and which side of the main breaker they are on.

I guess I should not assume they are all like that one pic though. I will go to progressives and wfco websites and see if they have distribution panels set up different than the pic. Will post after I find out.
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Old 09-12-2015, 06:29 PM   #14
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Old 09-12-2015, 06:39 PM   #15
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Just like at your house, it is best to try to balance the loads. That means about the same amount of amps drawn on both sides.
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Old 09-12-2015, 07:04 PM   #16
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Wired in the EMS today so I took the opportunity to remove the main breaker.

It's wired L1 to one side and L2 to the other breakers.
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Old 09-12-2015, 07:20 PM   #17
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Originally Posted by pmsherman View Post
The disttribution of power is controlled by the design of the buss bars that the breakers plug in to. Most breaker boxes are designed with adjacent breakers connected to different legs of the power line which facilitates installing a double breaker for a 220V appliance. RV boxes may not be designed this way to decrease costs.
OK Phil, you had me curious. It appears that we are both correct. From what I have been able to see/read from the WFCO, Progressive Dynamics, and Parralax sites is that the horizontal 50 amp distribution panels (with a dual 50 amp breaker in the center) are indeed setup with the left side being L1 out from the center of the main 50 amp breaker(s) and the right side is a separate L2.

As you stated, this is for cost savings and dual purposes. These 50 amp panels can be also be used as 30 amp panels, which then only the left L1 side is used as per this from WFCO.

http://wfcoelectronics.com/wp-conten...ion-Manual.pdf

I can't find as something as near detailed from Progressive Dynamics or Parallax but will keep searching. This was interesting and I learned something, and may can help members with it.
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Old 09-12-2015, 07:22 PM   #18
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Wired in the EMS today so I took the opportunity to remove the main breaker.

It's wired L1 to one side and L2 to the other breakers.
Thanks for that information, RubyDually. It does help.
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Old 09-12-2015, 07:33 PM   #19
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I want to thanks everyone that is posting pics again, as it is extremely helpful and informative.

I have noticed something so far. It appears every 50 amp distribution panel, no matter what RV model, is a WFCO.

I wonder now if Forest River is only using that brand?
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Old 09-12-2015, 07:33 PM   #20
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If you blow up my picture there's a breaker labled CONV for the life of me I can't figure out what that stands for...

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