Quote:
Originally Posted by Matty Rich
The Onan on board is 5500 and can run the whole trailer. I’ve ran my trailer on both a Honda 7000 and Predator 9500 with no problems. Not sure who would need 12000 watts for a fifth wheel.
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The fact that you "can run the whole trailer" on a 5500 watt generator does not mean that it provides THE SAME power input as shore power.
Using a 5500 watt generator to "replace" a 12000 watt source is very much like putting a 3 cylinder 1100 cc diesel engine in a F350 to "replace" the 6700 CC V8 engine. It'll likely get you to town and back, but hitch a heavy load behind it and it'll start having "brown outs and power surges" just like that ONAN strains to keep up when "running the whole trailer"....
There is no way 5500 watts can "replace" 12000 watts. Once you turn on two air conditioners, the refrigerator, using hot water (on electric power), turn on a electric griddle or fry pan and using the microwave, that 5500 watts won't be providing sufficient power to prevent a low voltage/high amperage condition... That is a "perfect storm condition" that puts your compressors in the air conditioners and the refrigerator at risk.....
Simply put, a 5500 watt Onan generator is capable of running a 50 amp RV USING GOOD ENERGY MANAGEMENT PRINCIPLES, but is less than one half of what shore power provides (5500 watts vs 12000 watts).