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sandy43

Hockley, TX

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Posted: 06/22/12 04:56pm

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Is their a chart that shows (estimate) what each appliance uses for amps. If I use my 50 amp cord (or 30 amp cord) what can I turn on. This would be very helpful to me and hopefully others. Thanks

wolfe10

Texas

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Posted: 06/22/12 05:00pm

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Assuming your RV is 50 amp, the first piece of math is:

With 50 amp RV outlet, you have 100 amps of power available.

With 30 amp RV outlet, you have 30 amps of power available.

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pianotuna

Regina, SK, Canada

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Posted: 06/22/12 05:09pm

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Hi,

Or to speak in watts with a 50 amp RV there are 12000 watts available and in a 30 amp RV only 3600 watt may be used.

On of the best ways to find out what demand is is to use a kill-a-watt meter. For example my water heater plate says 1400 watts--but in fact only draws 1151.

watt meter

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hershey

Albuquerque,(fulltime) NM, USA

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Posted: 06/22/12 06:05pm

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A 50 amp RV plugged into a 50 amp shorepower can use everything thats on the RV all at the same time.
My stick and brick home I sold only had 100 amps and never threw a circuit.
A 30 amp RV plugged into a 30 amp shorepower can use one AC at a time unless you have an Energy Management System on the RV.
You can use your microwave but not together with the washer/dryer or electric water heater. You really need to use only one high useage item at a time. Those being:
AC, Electric water heater, washer/dryer, microwave, electric heater, and last but not least, my wives turbo charged electric hair dryer.

hershey - albuquerque, nm
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skipnchar

Topeka or somewhere else

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Posted: 06/22/12 06:08pm

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Stop turning them on when you trip a breaker, is the easiest way to know when the circuit is overloaded.

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bluebirdPT36

NE Tn

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Posted: 06/22/12 07:01pm

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pianotuna wrote:

I do not own a kill-a-watt___they seem to be a handy gadget.
My question is about the wattage of your water heater. Isn't voltage an important factor on the amperage draw of a resistance load? At what voltage did you read 1151 watts? Was it significantly less than the tag on your heater?

2oldman

Wilson Creek WA

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Posted: 06/22/12 07:32pm

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sandy43 wrote:

Is their a chart that shows (estimate) what each appliance uses for amps.

I'm sure google knows.

pianotuna

Regina, SK, Canada

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Posted: 06/22/12 07:42pm

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Hi,

I do not remember the voltage being low--and I'm a stickler and do not run items below 108 volts. Nominal in my location is 120 volts.

The number plates appear to have little relationship to reality--only once has one been within 5% of the actual measured load. I have check the meter and it is correct.

* This post was edited 06/22/12 07:59pm by pianotuna *