I just finished installing a Multiplus-II 3000 12v in my RV trailer. My shore power plug feeds directly into the 120v-IN on the Multiplus.
I never really thought about it until I finished my install, but if I was to hook up to shore power at an RV park and run the air conditioning through a 30amp shore power supply, is this something can safely be done for many days on end? I assume (hope) the Multiplus can handle this.
Your MP2 is able to passthrough 50 Amps. If you do not exceed this, there will be no problem.
Hope it helps
Jens
They’re built for that purpose so yeah, they can handle it.
As long as they have proper cooling of course.
That reminds me of another question. I’ve read a lot about proper cooling. But I haven’t seen anything saying what is a recommended maximum temperature for the MP2?
The Datasheet says it will start derating output power above 25°C, with output values provided up to 65° ambient.
The temperature derating calculator app says power will be 0 when >65°C so I’m going to guess that’s the hard limit 
The general rule in electronics is that any rise in temperature with 10° will cut a component’s lifespan in half.
So better to keep 'em closer to 25°C than to 35°C (or higher).
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