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Old 08-21-2019, 07:18 PM   #127
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Originally Posted by KanzKran View Post
I think you meant 10,000 AIC (Amperes Interrupting Rating). That's basically a short-circuit rating, or the max current it can interrupt safely, and is very common especially among small breakers. 22,000 AIC is another common rating.

And 10kA isn't that much in a dead short. Even a little 14 gauge copper conductor can pass thousands of amperes for a cycle or two before glowing like a bulb, so even little 15A single-pole breakers have a rating like that, or higher.

Or I could be way off on what you said, but I've never seen a breaker with a wattage rating: just current, voltage or voltages, and AIC rating, and sometimes with a high-magnetic or HACR notation.
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Old 08-22-2019, 05:06 AM   #128
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Unfortunately the breaker and box went out with the garbage this morning I wish I had taken a picture of the nomenclature. I'm sure it ended in 120/240 rms 10000. I could have supposed watts. The numbers 10000 was definitely on that same line.
The 10000 was not watts. It was an amp raring as stated in another post. Breakers have nothing to do with Watts. Breakers are rated in amps.
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Old 08-22-2019, 05:13 AM   #129
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Every breaker I can find on the web has a 10 KA interrupt rating regardless if its a 15, 20, 30 or 50 amp breaker.

10kA is the fault current rating of the breaker, not the normal load rating. Remember that a circuit breaker is a protective device. What the 10kA means is that the breaker is capable of interrupting a 10kA short circuit current.
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Old 08-22-2019, 05:14 AM   #130
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Sure makes me wonder, why the variance here? I would assume that 240 volt residential service came along before 240 volt RV service. Residential service is easy in that the number of amps a panel is rated for is the total amps available. This makes perfect sense.

So who's the wise guy that decided to use a different method of labeling 240 volt RV pedestals? Why do we call it 50 amp service when there's actually 100 amps available?
There is absolutely no difference between an RV 240 service and a residential service. Not now. Not ever. A 240 volt 50 amp service is 50 amps 240 volts. A 30 amp rv service is 120 volts. 30 amps 120 volts. THAT's what is available.

200 amp residential service is 200 amps. In 50 years I NEVER HEARD "400 AMPS AVAILABLE"
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Old 08-22-2019, 05:29 AM   #131
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Lol,,,guees i havnt heard of this 50/100 ,,curious how this is derived???
Do a search. There is no deriving and there is no 100 amp RV service. Unless you go to an RV resort. MH exclusive park. Although you better not say "Park" to the manager.
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Old 08-22-2019, 06:26 AM   #132
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Hey, maybe it meant 10kAIC, but the 10000 was written out. I'll see if I can corral the maintenance person and snap a picture of the E.T.N

Or maybe it said: Interrupt Rating AC:10000, but I did not see the words Interrupt Rating. The picture will be more than my 1000- words.
Not to belabor the point, but here's a couple of breakers with 22kAIC or AIR markings. The 22000 is spelled out on the box, where there's lots of room, and shortened for that tiny label on the breaker itself.

15A, single-pole, 22kA https://www.alliedelec.com/product/s...115h/70799730/

20A, single-pole, 65kA (65000 written out on the breaker)
https://www.homedepot.com/p/Siemens-...20HH/301656290
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