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RV-Dreams.com Home -> RV-Dreams Community Forum -> RV Maintenance and Technical Tips -> Generator question
Post Info TOPIC: Generator question
MarkS


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Generator question
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I'm confused. Looking at an onan 6kw (QD6000) unit, I find it is single phase and has a 30 amp breaker. They specifically state that it will easily run two AC units.

30 amps, single phase, two ACs? Is it magic or am I missing something?



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Lucky Mike


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more than enough power......

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TRAILERKING


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http://power.cummins.com/onanpowerWeb/navigation.do?pageId=962&parentId=533&linkName=RV%20Generators

Should have a 50 amp capability.

The nice thing with that model is it's a variable speed depending on load demand. Quieter and better on fuel and wear & tear.



-- Edited by TRAILERKING on Wednesday 25th of June 2014 12:27:25 PM

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Bill and Linda


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Mark:

Looking at the spec sheet –

https://powersuite.cummins.com/PS5/PS5Content/SiteContent/en/Binary_Asset/pdf/Consumer/specsheets/a-1486.pdf

This unit has a two pole, 30 amp breaker.  That means you can have two 120 volt legs, each breakered at 30 amps, to feed each leg of the coach.  A maximum of 50 amps total between them, but with the dual 30 amp feeds each AC unit will have plenty.  Most AC units draw around 15 amps if they are 15,000 BTU units.  A bit less if they are 13,000 BTU.  AC units are, or should be, on opposite 120 volt legs in the coach.  This is the normal way they are wired.

FWIW, I’ve actually run my two 15K AC’s off one 30amp breaker but that’s all that was on in the coach.  Everything else was on inverter or gas and it was a solid 30 amps without much voltage drop.

Properly wired you should be just fine.  More than enough, IMO.  I assume you’re going to mount this on the tractor – hence diesel.

Bill



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