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Old 09-15-2007, 09:32 AM   #15
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Uwe - what are the advantages of the round vs. flat. Does it stay connected better?
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Old 09-15-2007, 09:49 AM   #16
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Quote:
Originally Posted by 3Ms75Argosy
Uwe - what are the advantages of the round vs. flat. Does it stay connected better?
Yes, and it is a very positive connection. I often had to wiggle the plug when I was using the 7-flat, and clean out corrosion.
But the real reason is that the round pin connectors carry twice the current over the flat pins. 20A rating for the flat pin, 40A for the round pin. Providing that you have a 10g or better charge wire, this can really make a difference in battery charging, and also safely provide a more stable current to the trailer without fear of overloading the trailer connector. This is especially important for 12V refrigerator users, or in my case, trailers with electro/hydraulic brakes.
I have attached a .pdf with trailer connectors.
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Old 09-15-2007, 10:14 AM   #17
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Or you could use a 9 pin, that's what come with my 86 excella. then you can sister up a few of the round pins, provide enough current to set off some sort of nuclear devise, or have the right turns going left, bachups forward, brakes stopping on go and going on stop.reefer heatin,heater freezin. just give me a flat 5. lol
how's the new rig newguy? Burbmen rule.
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Old 09-15-2007, 11:30 AM   #18
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Originally Posted by doorgunner
Or you could use a 9 pin, that's what come with my 86 excella. then you can sister up a few of the round pins, provide enough current to set off some sort of nuclear devise, or have the right turns going left, bachups forward, brakes stopping on go and going on stop.reefer heatin,heater freezin. just give me a flat 5. lol
how's the new rig newguy? Burbmen rule.
Nuclear device....not a bad idea. Nuclear reactor for boondocking power, downsized to fit into the bumper compartment.

The new Suburban is doing great, so far. Drives nice.
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Old 10-03-2007, 02:13 PM   #19
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Here you go. I just went down this road last week. See where I changed the colors on the wires coming from the camper to the Tow vehicle. On the flat 7 pin RV change the black to the blue. The yellow to black and the blue to yellow. The color code from the AS for the electric brakes , backup lights and power does not line up to the color code of the RV 7 pin flat. The brake lights, ground, left and right signals do line up with the right color codes. Good luck.
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Old 10-03-2007, 02:19 PM   #20
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Originally Posted by mountainman1
Here you go. I just went down this road last week. See where I changed the colors on the wires coming from the camper to the Tow vehicle. On the flat 7 pin RV change the black to the blue. The yellow to black and the blue to yellow. The color code from the AS for the electric brakes , backup lights and power does not line up to the color code of the RV 7 pin flat. The brake lights, ground, left and right signals do line up with the right color codes. Good luck.
Thank you!
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Old 10-03-2007, 02:48 PM   #21
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Glad to help. I lost some sleep on this one.
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