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Old 09-02-2014, 11:33 AM   #1
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draws in amps

A friend was over who has an amp meter and we checked the draw in amps of various parts of our trailer as well as a number of items inside it. These number will probably vary from one unit to another, but it does give a pretty good idea of how much power common items carry:

Power draw in trailer in amps all adjusted for basic draw

basic draw 0.2 CO detector, microwave clock

air conditioner 12.2
awning 0.3
bedroom slide 1.4 Schwintek
coffee maker 4.5 one cup drip
curling iron 0.5
fan high 1.8
fan low 1.3
fireplace 6.0
fridge 2.4
front jacks down 1.1
front jacks up 2.1
furnace 2.6
hair dryer 10.8
hot water 10.3
LED lights 0.2 each set of 2 4 ceiling lights
microwave 9.3
non-LED 2.0 for all 10 together
non-LED 0.6 table only 3 lights
non-LED 0.2 set of 2
porch light 0.3
rear jacks 0.7
scare light 0.4
slide out 2.0
small table fan 0.1 on high
toaster 5.8 2 slice
TV 0.3
vacuum 8.9 Dyson cannister
water pump 0.6
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Old 09-02-2014, 11:38 AM   #2
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That's good info, but like you said it will vary from one unit to another.
The one thing I question is what you stated for amp draw on the AC. Seems a little low. Also, did you have any allowance figured in for starting amps on anything?
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Old 09-02-2014, 12:03 PM   #3
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My friend Jim had the amp meter on the wire going into the trailer. He would wait for the meter to read the minimum, then I would switch on something. He got a number, I wrote it down, then turned it off. We repeated for each item. The amps showing was basically the starting. I turned on the curling iron, for example, and we got the number. I know the thing cycles on and off while it is in use. The a/c unit was also on start-up. We did not run anything for any length of time.

The unit was plugged into a 30 amp RV plug we have at our house.

We were surprised the slides didn't take that much.
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Old 09-02-2014, 01:55 PM   #4
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I was surprised to see front jacks drew more amps to raise then to put down. And why front and rear are not the same?
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Old 09-02-2014, 02:09 PM   #5
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The front jacks raise the front of the fifth wheel. A lot of power needed for that as there is a lot of weight there. Lowering it is less work. The rear jacks do not raise or lower the unit, only stabilize it.
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Old 09-02-2014, 02:11 PM   #6
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Quote:
Originally Posted by Loneoak View Post
The front jacks raise the front of the fifth wheel. A lot of power needed for that as there is a lot of weight there. Lowering it is less work. The rear jacks do not raise or lower the unit, only stabilize it.
Duh...Got ya.
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Old 09-02-2014, 02:58 PM   #7
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In conferring with my husband, who was at the amp-meter with Jim (I was in the trailer) he said that they did wait for the draw to stabilize a bit before giving me the numbers. The a/c was just turned on, so once the draw is stabilized, then it is working hard to try to cool the unit.
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Old 09-03-2014, 10:15 AM   #8
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Good info there. And interesting on how much some things draw.
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Old 09-03-2014, 10:28 AM   #9
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So, while I'm vacuuming, my wife's staying cool with the a/c on, while drying here hair, making coffee and toast at the same time. She also wants instant oatmeal so there goes the microwave.

Happy as a lark until the neighbors at the campsite come over from next door and ask why their power keeps surging?

No idea?
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Old 09-03-2014, 01:40 PM   #10
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When we were at the rally I was vacuuming with the a/c on and the breaker outside flipped.
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