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Old 09-11-2017, 08:54 AM   #21
speedster100
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Thanks for the help guys, all changed over left the old one mounted until I see if it fixes the issue when we get out on the road again. Much appreciated.
 
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Old 05-14-2019, 12:35 AM   #22
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Originally Posted by rohrmann View Post
All the wiring is original, and I did check the wire to the pump, and it is #4 strand copper, which is why the 80 amp breaker works. Smaller wire would be too small for the 80 amp breaker. Also, the breaker I installed is a manual reset style, which I have never had to reset, but I believe they make a self reset type breaker too, but I did not see the need for this.
Just replaced my dealer-installed 50 amp with the recommended 80 amp frame circuit breaker, and immediately got no power at the pump! Then I remembered someone mentioned the little arm on the 80 amp Bussman that acts as a disconnect. Pushed it into the breaker housing and voila !

Thanks again to all who share the information and help us newbies avoid those big bills and hair-tearing sessions.
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Old 07-07-2019, 09:03 PM   #23
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replying to an old post on the 80 amp circuit breaker

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Originally Posted by John Neeley View Post
Where did you find that 80 amp breaker?? I am having problems with mine also, but goes into the shop on Tuesday for hopefully a quick look and repair. My existing breaker is a 50 amp non-resetable. Also, I have a smaller wire connected to one of the posts of the pump breaker, which isnt show in the above pictures.
I was reading through this thread and was wondering if you figured out the reason for the smaller wire. I have the same setup in my 2018 Montana and was planning to install the 80 AMP breaker tomorrow. Not sure what to do about the extra wire, except to just hook it up in the same configuration to the new breaker. The smaller wire runs through a red connector that says "30 AMPS" on it.
Thanks!
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Old 07-08-2019, 10:36 AM   #24
Leftie Canuk
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Originally Posted by MJohnston View Post
I was reading through this thread and was wondering if you figured out the reason for the smaller wire. I have the same setup in my 2018 Montana and was planning to install the 80 AMP breaker tomorrow. Not sure what to do about the extra wire, except to just hook it up in the same configuration to the new breaker. The smaller wire runs through a red connector that says "30 AMPS" on it.
Thanks!
MJohnston: I didn't determine the purpose of the 30 amp wire, just put the wires back as I found them before I swapped in the 80 amp breaker. So far, no problems.
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Old 07-11-2019, 08:01 PM   #25
MS 2018 Montana
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Help! I want and need to replace the 50 amp circuit breaker for the hydraulique pump to a 80 amp one and I cant find it. We have a 2018 3000RE Legacy Package Montana. And yes, we have called our dealer and they can't or won't help us with that unless we bring it in...I won't do that! They are juste the Worse...! Thanks for the help in finding that circuit breaker.
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Old 07-11-2019, 08:27 PM   #26
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Google "bussman 80 amp circuit breaker" or just go here and order it https://www.amazon.com/Bussmann-BP-C.../dp/B001PYL1VM
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Old 07-11-2019, 08:40 PM   #27
MS 2018 Montana
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Sorry...that is my first post and I'm a bit nervous! In my post I said that I couldn't find the breaker...I met that I couldn't find it in my RV! I've already ordered the 80 amp circuit breaker that I found on Amazon...thanks for the help on that! Now if I could only find where the 50 amp to be replaced, is located. Thank you for your help and patience!
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Old 07-12-2019, 05:46 AM   #28
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find your pump set up, there should be a thick RED cable follow it back towards the battery. there should/will be a breaker between pump and battery, that is the 50amp you want to replace. 80 amp will look different and larger than the 50 amp.
up here in Michigan the 50 was resetting all the time with the cold weather, made the swap and no issues sense good luck.
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Old 07-12-2019, 11:16 AM   #29
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Originally Posted by MS 2018 Montana View Post
<snip>
...Now if I could only find where the 50 amp to be replaced, is located. Thank you for your help and patience!
</snip>
Take a look at post #2 in this thread to see Bob's pictures of the breaker location.
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Old 07-12-2019, 12:11 PM   #30
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Originally Posted by L0veless View Post
find your pump set up, there should be a thick RED cable follow it back towards the battery. there should/will be a breaker between pump and battery, that is the 50amp you want to replace. 80 amp will look different and larger than the 50 amp.
.......
I am guessing wire colors differ on models and years, but mine and pictures of others I have seen the wire to the pump from the battery is a large BLACK wire. In any event, look for a pump similar to the picture below. The device sitting on top of the pump is the reverse polarity contactor and the wire to the center post on top will be the power wire from the battery thru the auto reset 50 amp circuit breaker. Follow that wire to find the breaker that needs to be replaced by the 80 amp breaker. There will be 2 or 3 breakers probably mounted to the wall near the battery. But the one with the wire to the pump is the one.
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Old 02-12-2021, 05:34 PM   #31
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Where do I get breakers?
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Old 02-12-2021, 05:49 PM   #32
speedster100
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Auto electric supply, Napa or similar should carry them... I'd personally get the auto reset 80amp one. Some have got the manual reset tho...
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Old 02-12-2021, 06:02 PM   #33
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Originally Posted by jackfalkenhagen View Post
Where do I get breakers?
Here you go.

Bussmann CB181F-80 80 Type I Flush Mount High Amp Circuit Breaker, 30Vdc.

https://www.amazon.com/dp/B008QDI9HY..._7B0oEbRQQ00AE
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Old 03-31-2021, 09:09 AM   #34
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No. You have two breakers, one for the hydraulic pump, which is the slides and the jacks, and the other breaker is for everything else in the rig. When I replaced the breaker to the pump, I did not replace the other breaker. I also do not remember where the other wire goes off the load side of the 80 amp breaker, just wired it the same as it was wired on the old 40 amp breaker. I also found some loose connections when I installed the new breaker, so it's a good idea to check everything you can while doing this.

original installation


80 amp breaker installed


80 amp breaker

Thank you Bob for posting these pictures. Today I am upgrading my 50 amp to the 80 amp circuit breaker. Is it ok to upgrade both breakers to the 80 amp ones? I bought two.
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Old 03-31-2021, 09:43 AM   #35
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Thank you Bob for posting these pictures. Today I am upgrading my 50 amp to the 80 amp circuit breaker. Is it ok to upgrade both breakers to the 80 amp ones? I bought two.
Personally if I had never had a problem with the second breaker I would not replace it with an 80 amp. And if I did, the first thing would be to make sure the wiring from it is sized to handle 80 amps. The wire to the pump is short, visible, and hanging in free air so heating is not really an issue. The wires from the other one disappear in different unseen directions.
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Old 03-31-2021, 09:48 AM   #36
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Personally if I had never had a problem with the second breaker I would not replace it with an 80 amp. And if I did, the first thing would be to make sure the wiring from it is sized to handle 80 amps. The wire to the pump is short, visible, and hanging in free air so heating is not really an issue. The wires from the other one disappear in different unseen directions.
Ok.....thank you Bill. Now I can begin.
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Old 03-31-2021, 11:59 AM   #37
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Since I originally posted about the 80 amp breaker, the other large wire on the same terminal as the pump wire is the one that connects to the main panel via the battery disconnect switch. You don’t have load from the panel when operating the slides and leveling system and when you are using the loads on the panel you aren’t operating the hydraulics, so this arrangement works just fine. As far as replacing the other small breaker for a larger one, I would not because all the loads that can be on it are much less than it is rated for and to double it will be like not having any protection on those circuits. If something were to short, you will seriously melt the wire that is faulted which could cause a fire.
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Old 03-31-2021, 12:34 PM   #38
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The other breaker not the one you replace for the 80amp is only a 30amp I would not change that to a bigger breaker as Bob has said.
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Old 03-31-2021, 03:12 PM   #39
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Quote:
Originally Posted by MJohnston View Post
I was reading through this thread and was wondering if you figured out the reason for the smaller wire. I have the same setup in my 2018 Montana and was planning to install the 80 AMP breaker tomorrow. Not sure what to do about the extra wire, except to just hook it up in the same configuration to the new breaker. The smaller wire runs through a red connector that says "30 AMPS" on it.
Thanks!
The smaller red wire that has the 30A inline fuse goes to your pre wired solar install.

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"https://youtu.be/mhE9pSum_nA"

Jaboni/Montana solar install
"https://youtu.be/gn3BIWaSb4c"
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Old 03-31-2021, 09:14 PM   #40
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80 amp / 50 amp / 30 amp

I did some thing similar. I used an 80 amp breaker for the hydraulic pump, a 50 amp breaker for the internal 12v fuse panel and a 30 amp breaker for every thing else. I found all of the breakers on Amazon.

I have a 2015 RL 3100. It was originally wired with a 50 amp and 30 amp self resetting breakers. The hydraulic pump would often cut out from the overloaded 50 amp breaker when I was hitching/unhitching. My 50 amp breaker was also tripping out at much lower than 50 amps due to it constantly tripping. It's performance was deteriorating from so much "use".

I'm not sure why Keystone was even using the 50 amp breaker for the hydraulic pump. The Lippert "Level Up" installation manual calls for an 80 amp breaker. I called Lippert and confirmed this.

I also was pretty impressed with Lippert customer service, they were both knowledgeable and responsive.
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