Thread: Inverter help ?
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Old 05-28-2020, 04:09 PM   #9
JRTJH
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Join Date: Mar 2011
Location: Gaylord
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Quote:
Originally Posted by Grizzlyjim660 View Post
First i don’t appreciate your sarcasm. But very much do appreciate Johns help !! To rephrase my question, if the MAIN breaker is flipped off does that prohibit ANY juice to flow through the RV ? I’m not an electrician, which is why I’m here asking questions. Thanks
There are TWO electrical systems in every RV. The first is the 12 volt (battery system) and the other is the 120 volt (shore power/generator/inverter system).

The two are not interconnected, however the converter does provide both 12 volt power to the trailer systems AND charging power to the battery. The converter uses 120VAC to produce 12VDC for the trailer systems. Other than that "converter function" the two systems are not connected or inter-related.

If you turn off the "main breaker" you turn off all 120VAC to the trailer, stop the converter from operating and cause all 120VAC at the outlets, all appliances to stop functioning.

So, if you connect a 1600 watt inverter to the battery and plug the output into the trailer shore power connection, you'll be powering the entire trailer 120VAC system. Turn the main breaker to OFF and you stop powering everything in the trailer's 120VAC system. The battery would still be powering the inverter and the inverter output would still be going to the trailer shore power connector, into the trailer power center, but would not travel past the main breaker.

In previous posts, I attempted to explain that attempting to power your RV's 120VAC system with a 1600 watt inverter would require an extremely large battery bank, especially if you intend to operate the microwave. Operation of the microwave" will deplete a typical battery bank in one to two minutes of operation on high power. In other words, pop a bag of popcorn and you'll deplete the charge in a typical GP24 battery.

It's not going to be as "simple as buying an inverter and an extension cord to run it back to the trailer shore power connector. You'll need to consistently "turn off electrical items to prevent overloading your inverter and discharging your batteries. You'll need an extremely large (and equally heavy) multiple battery system to provide power, and even then, you'll need a reliable and "campground friendly" means to recharge the batteries every day after a "night of popcorn and TV"....
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