50 amp auto reset Circuit breaker

[Texan]

Originally Posted by rohrmann

This is the breaker as installed in our 3402. I did not replace the other 40 amp breaker because it has never tripped.

I'm fixing to replace my breaker in a couple of days. My rv is the same model as yours. Could you tell me which wire goes to which post on the new breaker. In the photo it shows you now have only one old breaker. The work looks easy but i want to be sure and make the right connections.Your new breaker in the picture looks like it was installed upside down, is that correct? It looks like you used 3 wires and i know one has to be from battery but i want to make sure the others are correct. I've never had any of my breakers trip buti want to do this improvement before i have trouble. Thanks.

[Texan]

rohrmann, disregard my question, i got a flashlight and looked at the old breakers and now see how it is installed. Looks pretty simple. I'll install it tomorrow. Thanks.

[cw3jason]

You have a residential fridge. the 100 amp is for the converter. this is how it will look on your setup

[Dixie Flyer]

Originally Posted by Texan

rohrmann, disregard my question, i got a flashlight and looked at the old breakers and now see how it is installed. Looks pretty simple. I'll install it tomorrow. Thanks.

This explains my set up, thanks. This will be a simple fix.

[Dixie Flyer]

Originally Posted by cw3jason

You have a residential fridge. the 100 amp is for the converter. this is how it will look on your setup

We have the same set up with the fridge. I now know how to install the circuit breaker, thanks.

[Texan]

Thanks for the help rohrmann . My breaker came in the mail today and i went ahead and installed it. Took all of 30 minutes and that's with me drilling out the old connections to 1/4 inch to fit the new studs. Any reason to change out the other breaker and if so then what size. The breaker i removed is 50 amp and i think the other one is 40 or 50 amp. just not sure.

[rohrmann]

I never had an issue with the other breaker, so it is still installed and still has never tripped, and we full time and have done so for over five years. I'd leave the other breaker alone until or if it ever causes an issue. I would not want to unnecessarily increase a breaker size if it is not tripping. Replacing a 40 or 50 amp breaker with an 80 amp breaker, as we have done is only because the wrong breaker was originally installed.

[Texan]

Thanks, i was a little leery about jumping from 50 to 80 but read where Keystone was advising to increase to 80 amp so i feel confortable about it. I manually kicked my breaker with the shore power hooked up and the slides still worked but when i unhooked shorepower and manually kicked breaker the slides wouldn't work. Is that correct? I wired the breaker just like the old breaker so everything should be correct, jumping from the other breaker to 80 amp for battery current.

[masterdrago]

Okay, some confusion in this 5r new guys brain. The OP said colder weather. Is this below freezing while trying to run slides or level up? And man, what a wiring mess. My big breaker on the left as in Dixie Flyer's pix is a 150amp to the inverter. The two smaller on the right are unknown amps but the far right one is a feed to several smaller wires with the input side a connection to the small middle breaker. the middle feeds both to the underbelly (mini fuse circuit board in hall??) and to the hydraulic pump. Is it the middle one that Keystone is recommending to replace with the 80amp?

[cw3jason]

Originally Posted by masterdrago

Okay, some confusion in this 5r new guys brain. The OP said colder weather. Is this below freezing while trying to run slides or level up? And man, what a wiring mess. My big breaker on the left as in Dixie Flyer's pix is a 150amp to the inverter. The two smaller on the right are unknown amps but the far right one is a feed to several smaller wires with the input side a connection to the small middle breaker. the middle feeds both to the underbelly (mini fuse circuit board in hall??) and to the hydraulic pump. Is it the middle one that Keystone is recommending to replace with the 80amp?

Yes, its the middle one that feeds the pump. see the picture I posted earlier in the thread

[masterdrago]

My middle breaker is a bit different than yours Jason. On the input side (right) it has a smaller red wire dropping down with a Maxi auto 30 amp fuse inline. I have no idea what it powers or protects.

[cw3jason]

Originally Posted by masterdrago

My middle breaker is a bit different than yours Jason. On the input side (right) it has a smaller red wire dropping down with a Maxi auto 30 amp fuse inline. I have no idea what it powers or protects.

yes, I see that, but it doesn't matter. its on the input side and does not use that breaker for protection. it was just another stud to get power from. the circuit only protects the items on the output side, which of course is your hydraulic pump.

[Dixie Flyer]

Replaced the 50 amp breaker with the 80 amp breaker yesterday. Thanks for all the help and advice.

[CaptnJohn]

Originally Posted by mlh

I think the real reason there is no wiring diagram is it’s expensive to produce the blueprints and then go by them. You haft to produce the print look them up on paper or on a computer and the make sure you follow them. It’s expensive and not necessary to build a camper.
I have a machine shop, make hundreds of parts, dozens of products without a single blueprint or computer drawing. To have them would only slow things down and not in any way add to quality. Any time we needed to change something we would haft to modify all those prints now we just do it, with no time lost. Montana does it the same way.
Lynwood

I agree it is not required. I doubt your shop would leave such a mess as found under all 5er though. Now Montana is proud to use different colored wire to make things easier to trace. It should work. However, do not think you can use a like year/model for reference as different colored wires are used and routed differently (can it be called routed) to the same destination.

[Gradified]

Can you provide me with that TSB? I've looked and the info I found is it was dated 030103 and the item number is 10002240. Keystone says they don't have a record of that and it doesn't apply to my 2010 Model 3455SA. I have intermittent operation of the slides but it's not associated with cold weather. It may be misalignment, debris or a seal hanging up so I'm not sure it forcing it by allowing more current to draw is the answer.

[Golfmedik]

I believe this is it. It is aimed at the newer campers I believe, but they've used the same type breakers for years and if yours has hydraulics, use your own discretion.

[BB_TX]

Mine had the problem even in hot weather. First replaced the 50 amp with another 50 amp. Worked for a year before starting again. Installed two 40 amp breakers in parallel. Never tripped again. And that was a number of years ago.

[Dixie Flyer]

There is a picture above that shows how the circuit breaker is installed. I put an 80amp breaker in line replacing the old breaker and have not had any problems since. Easy fix.

[Starman]

Cw3jason, I have my new 80a to install. Looking at the pic. you posted, it looks like the 80a is down stream of the 50.
What am I missing?

[BB_TX]

Originally Posted by Starman

Cw3jason, I have my new 80a to install. Looking at the pic. you posted, it looks like the 80a is down stream of the 50.
What am I missing?

I think if you look carefully at the picture you will see a black wire with large yellow lug to the left side terminal of the smaller OEM breaker with the red cover. That would be from the battery. Then there is a black jumper, also with yellow lugs, from that same terminal to a terminal of the first larger breaker. And from that terminal a jumper to the second larger breaker. That puts all three breakers in parallel, none in series. That thing with the red “lips” I think is not a breaker.

Hopefully Jason will be along to confirm that.