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Old 11-18-2011, 08:15 PM   #1
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Electrical Panel in 2012 Superlite 305RLS

I've been pestering Jayco with questions ever since I was considering purchasing one and lately more questions since I've ordered one. I don't want to wear out my welcome with them so I'm looking to the forum for information.

My question, I'm planning some upgrades when I get the unit and one question I have to people with a Superlite 305 RLS is if there are any empty spots to add circuit breakers in the fuse panel?


P.S. I hope Jayco is as responsive once I've get my unit as they have been so far ..... I'm impressed with their quick responses.

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Old 11-19-2011, 05:00 AM   #2
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I don't know about that specific camper, but generally I see spare 12 volt fuses but rarely spare breakers. I doubt you will get a very specific answer from Jayco. They are a little shy when it comes to supporting mods - and I can understand that.

Curious what you are wanting to add? Maybe there are other ideas that can help.


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Old 11-19-2011, 10:59 AM   #3
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One thing you might check with your panel. There is two sizes of circuit breakers - A full width size and a half width size. I wouldnt change the MAIN 30AMP Full Size Breaker but any of the other installed breakers that are full width sizes you should be able to remove that one and replace it wil two half-width size breakers in the same slot. They just snap into place once you remove the fron panel. Just be sure to get the same brand that is used. LOWES electrical department has all the major brands of circuit breakers in both full width and half width sizes.

My Power Distribution Panel (WD8900 series) has five full width circuit breaker slots in it...
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Old 11-19-2011, 11:00 AM   #4
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One of the mods I want to do is to add two electrical power bars. One near the stove / counter area (on the wall) and one on the side of the table. Want them on a separate circuits so we can use kettle at the same time as the toaster, or have a heater plugged in and make a cup of coffee, etc.

cheers and have a great day
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Old 11-19-2011, 06:28 PM   #5
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Do you know if your new trailer has 30 amp or 50 amp service? Of course, those are the limits to the overall power available to use in your trailer.

With the 30 amp service in ours, I find that often have to shed load - like turn the refrigerator to propane or to turn the water heater to propane - to allow the use of another high consumption item.
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Old 11-19-2011, 08:07 PM   #6
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I am on my 3 fw, and never seen one with space for another breaker, they just don't do it, .
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Old 11-20-2011, 08:05 AM   #7
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Originally Posted by rthibodaux View Post
I am on my 3 fw, and never seen one with space for another breaker, they just don't do it, .
It's going to vary from RV to RV. The 2011 330RLTS (yes, I know it's a TT) has one empty space that can hold a double half pole breaker module and a single pole breaker that can be replaced with a double half pole breaker module. Some brands of panels can accept single half pole breakers but, since Jayco use the double half pole breaker modules, I suspect that is all that is available for them.

This is an example of a single pole breaker:

This is an example of a double half pole breaker module:

Both half poles can be either 15A or 20A only or a combination of a 15A and a 20A breaker. If your panel has an empty slot, you can add up to two circuits in that slot. If none of the slots are empty but you have at least one single pole breaker, by replacing the single pole breaker with a double half pole breaker module which will give you one additional circuit for each single pole you replace.

There is also a possibility your RV will have an unused circuit you could steal from. For example, if it is wired for two A/Cs and you have only one, you could disconnect the wiring for the unused A/C location from the breaker (I would just cap off the wire and tuck it to one side instead of cutting it off in case you ever decide to add the second A/C or sell the RV) and use that breaker for your new circuit.
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Old 11-20-2011, 10:41 AM   #8
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Everyone, thanks very much for all this information.

Looks like one way or another I will be able to add one or two additional circuits once the new fifth wheel arrives. Now I'll be able to make my coffee, burn my toast, and watch the morning news all at the same time.

cheers and have a great day.
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Old 11-20-2011, 01:56 PM   #9
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Definitely let us know how it goes with your new 5'er. When do you take delivery? Where do plan to go for the maiden voyage?
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Old 11-20-2011, 09:55 PM   #10
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Thumbs up

This might help.

There is no room to add another breaker in my 2011 30.5 RLS.
Here are a few photos of the stock arrangement

and here is a link for the Progressive Dynamics PD4045 Power Center.

Link to PD4045

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