30 amp =

wouldn't the microwave be about 1100 watts. the clock/radio/etc. minimal?
bumpy

Power in WATTS is Voltage times Amperes.

If you simply plug in, and do not turn on any loads, you
are using 115 Volts times 0 Amperes = 0 Watts

If you add load, say 10 Amperes, you are drawing
115 Volts times 10 Amperes = 1150 Watts = 1.15 Kilowatts

This holds for a 30 Amperes rated circuit, but not for other
types of circuits.

The microwave is only going to be pulling amperage when it is cooking something. Otherwise the clock on it is going to pull a fraction of a fraction of an amp. If everything but the microwave clock and the light on the radio are off, I would guess you are pulling way less than 1/10 of an amp. But you are probably forgetting many other loads that come on when you plug in. Things like the battery charger, the converter, maybe the fridge etc. What exactly are you trying to figure out?

The maximum is 120x20=2,400W for 20A plug.
120x30=3,600W for a 30A plug.
2x120x50=12,000W for a 50A plug.

Metaphor 7182 wrote:
.. with nothing pulled from the house electrical to the vehicle (microwave, clock, radio, etc.)?

If nothing is "pulled" it is near zero. Is that what you mean?

This was, for the record, the most uninterpretable question I have ever read. I have no idea what is being asked here. I probably know the answer, being well versed in electronics and electricity but....

Brian

Go buy a KillAWatt which will measure how much power a device uses. Plug it into your house and then your mh into the KillAWatt. It will show you how much power you mh is using just sitting there. You can then turn on each appliance and determine its load.

Not sure if this is the answer you're looking for, but when I connect up my Roadtrek 210P with nothing running in it I see a 2-3amp draw. This is when the batteries are fully charged, when they're down a bit the draw goes up to about 10amp.

Not a clue what you are asking. The power draw is absolutely and only dependent on the equipment running in the RV. Has absolutely nothing to due with what type 110volt circuit you plugged into up until you trip the breaker for over.

Exactly what did you calculate?

VintageRacer wrote:
I have no idea what is being asked here.

Maybe it's a Metaphor. :)