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Old 10-13-2017, 09:06 AM   #1
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2005 30' Classic
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12volt breaker reset buttons.

I believe that Airstreams made for the US market use breakers to protects the 12v circuits, whereas for some reason those for Canada use one-time fuses for 12v. At least I think that is the way it was when our 2005 Classic was new.


Although we live in Canada we imported our trailer and so it is equipped with
breakers.

According to the manual the breakers supposedly have a button that pops out when tripped.

As yet, we have never tripped a 12v breaker, but in looking at them, I don't see any evidence of these reset buttons. It looks more to me as though we have the type of breakers that reset automatically - although I'm not sure.

Can anyone elaborate as to whether some trailers do have auto reset breakers?

Maybe ours are in fact manual reset type and I just cannot see the buttons as none have ever tripped.

Just wondering!
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Old 10-14-2017, 07:45 AM   #2
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Hmmmm - 48 views, but no comment! I guess I'll just have to go on wondering if the breakers do have reset buttons or not, I don't see any and have looked quite closely!
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Old 10-14-2017, 09:02 AM   #3
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12 volt breakers are generally auto reset. They are a thermal breaker as apposed to a bi metallic strip that melts in a fuse.

It is not uncommon with a low current draw to have the breaker cycle so fast that you can hear it click on and off repeatedly. Canada is known to have a better electrical code the the US. As such Canada wants the circuit to open and remain open if the is a fault not sit there and cycle on and off.
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Old 10-14-2017, 09:31 AM   #4
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Our 2005 Airstream, made for and sold in the USA market, didn't have any 12vdc breakers. I've since added one for the Barker hitch jack. Seems the glass 30a fuse only tripped on drizzly or rainy mornings when I was ready to hitch and go. Open tonneau cover, dig around to find parts box, find 30a replacement fuse. There's a better way. Besides, that fuse was mounted at the load end of the 10ga wire instead at the line end near the battery where it belongs. I replaced it with a 30a breaker that, like Howie says, automatically resets.

I also have a 30a breaker with manual reset in my parts box. Red button pops out when it trips. If I install a 12vdc breaker inside the trailer I'd use the manual reset one. Agree with Howie, safer to not have a breaker cycle off and on autonomously.
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Old 10-14-2017, 09:51 AM   #5
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Hi

There is a lot of cut and paste in AS manuals. As a result you will find references to a variety of things in the words that do not match what is in the parts list. My Classic does appear to have a whole bunch of push reset 12V breakers. I've never tripped any so who knows if they work or not ....

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Old 10-14-2017, 10:14 AM   #6
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Quote:
Originally Posted by Wingeezer View Post
I believe that Airstreams made for the US market use breakers to protects the 12v circuits, whereas for some reason those for Canada use one-time fuses for 12v. At least I think that is the way it was when our 2005 Classic was new.
My 2012 Airstream uses fuses for almost every 12v circuit. It uses thermal breakers for only 3 circuits, and all three of these thermal-breaker-protected circuits also bypass the use/store switch.
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Old 10-16-2017, 01:01 AM   #7
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Airstream has used manually resetting, "Class 2," circuit breakers forever on their USA trailers. They are located in the DC power box behind a metal door. There is a little black button that pops when it trips. The button is hard see as it is underneath the bus bar on that end of the breaker. Just use a mirror to make it easier. They are located connected to the DC Battery Bus for individual circuits and there is one for each battery within 18" of the battery.
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Old 10-17-2017, 02:37 PM   #8
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My '86 Sovereign 25 ft. has auto resetting breakers. I don't know if they are original or added by the previous owner. My '77 had single element fuses.
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