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Old 06-25-2011, 02:08 PM   #1
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Join Date: Jun 2011
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Add breaker to converter

I have an Elixir 20A converter with one TBBD 15/20 Amp Ac Breaker --Twin Single Pole-- installed. I am adding a small window air conditioner and would like to add a second circuit breaker.
1. IS that easy to do? I took out the existing one and saw the wires but I am not sure how to connect the second one?

2. Does the second one have to be the same TBBD 15/20 Amp type breaker? Or can it be any single/twin pole breaker (two 20 Amps or two 15 Amps) and any make. I have seen some at Home Depot with a BR replacement designation:

Eaton Cutler-Hammer 15 amp 2 in. Double-Pole Type BR Replacement Circuit Breaker - BR215 at The Home Depot

3. What gauge wire will I have to get (#12)?

Would really appreciate your help.

p.s. I'll try to upload a picture of my simple ELX 20 converter
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Old 06-26-2011, 06:57 AM   #2
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Location: South Eastern PA
Posts: 21,367
Well it certainly appears you have physical room to add up to 4 new circuits. Just remember that adding the circuit does NOT increase rated capacity of the camper.

You have a 20 amp main and feed wire. If you added 4 new 20 amp (or 15 amp) circuits you will still only be able to pull 20 amps total through the main.

If you add a 20 amp circuit you would use 12 gauge wire.

If you add a 15 amp circuit (recommended) 14 gauge wire (black, white, bare copper ground) will be lighter; easier to work with and the 15 amp rated GFCI outlet will be less expensive (required to keep the camper "code").

Increasing the main size will be a CERTAIN fire hazard if you did manage to draw more than 20 amps due to wiring in the feed line and the components in the power center.


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Old 06-26-2011, 07:10 AM   #3
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Thanks, man, for your quick and helpful reply. It all makes sense. Much appreciated. J
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