Operating on a 20amp circuit

road-runner wrote:
Mine came from the factory with a 30 amp main breaker and 4x 20 amp branch breakers. All the wiring except the flexible part to the slideout is 12 awg yellow romex.

Thanks for the above answers. Good to know 20 means 20 in newer RVs when folks have questions and issues.

I don't know if they still make "Canadian versions" with 15s and 14 wire for some of the branches except the 20 for the air conditioner.

Mine also had that WH or MW switch on the same 15a circuit so you could only run one or the other at a time, but the USA version had them on their own 20a branches.

(No, we did not have to strike a flint to get the stove-top going :) )

Mine came from the factory with a 30 amp main breaker and 4x 20 amp branch breakers. All the wiring except the flexible part to the slideout is 12 awg yellow romex.

BFL13 wrote:
Do American RVs have all 20a breakers with 12AWG wire to 15/20 receptacles?

The 2003 Komfort 5er we had with a Parallax 7300, had schematics in the manual showing the USA version had a 30a Main and all the branches were 20a. The Canadian version we had of the same trailer (made in Oregon) had a 30a Main and one 20a with the rest 15a with 14 wire. All the receptacles were 15a.

I find it hard to believe the factory had 12 wire and 15/20 receptacles in the 2003 USA version, but don't know.

What about these days? Do American RVs all come with all 20a breakers and 12 wire for everything? You need the 20/15 receptacles of course, since you still get lots of appliances to plug in with 15a plugs.

New stick houses are getting more 20a circuits these days than before. But "up here" they still have some 15s.

I can't speak for other RV's, but the one I have has 12g as the smallest wire, the breakers are all at least 20 amp, but the outlets do not have the 20 amp sideways slot. The outlets are 15 amp outlets. That being said, it is my understanding that the only difference between a 15 amp outlet and a 20 amp outlet is the way that slot is cut in the plastic face.

I think most on this forum understand the difference between 15 amp, and the 20, with heavier wire, especially the 15 Dutchmen mentioned, with the old glass screw in fuses. I can run any single high draw on 20 amp, even my 15K AC.

Jerry

road-runner wrote:

BFL13 wrote:
Do Americans now say "20a" when they really are talking about 15a with 14 wire, or do they mean actual 20a with 12 wire and the sideways plug-ins?

My guess is that they mean a circuit with a 20 amp breaker, that has 12 awg wire to a combo 15/20 amp outlet, or possibly just a 15 amp outlet. If an extension cord is used, it will be anything from 12 awg to 16 awg, but even if 12 awg, will likely not have the sideways prong on the plug.

Do American RVs have all 20a breakers with 12AWG wire to 15/20 receptacles?

The 2003 Komfort 5er we had with a Parallax 7300, had schematics in the manual showing the USA version had a 30a Main and all the branches were 20a. The Canadian version we had of the same trailer (made in Oregon) had a 30a Main and one 20a with the rest 15a with 14 wire. All the receptacles were 15a.

I find it hard to believe the factory had 12 wire and 15/20 receptacles in the 2003 USA version, but don't know.

What about these days? Do American RVs all come with all 20a breakers and 12 wire for everything? You need the 20/15 receptacles of course, since you still get lots of appliances to plug in with 15a plugs.

New stick houses are getting more 20a circuits these days than before. But "up here" they still have some 15s.

BFL13 wrote:
Do Americans now say "20a" when they really are talking about 15a with 14 wire, or do they mean actual 20a with 12 wire and the sideways plug-ins?

My guess is that they mean a circuit with a 20 amp breaker, that has 12 awg wire to a combo 15/20 amp outlet, or possibly just a 15 amp outlet. If an extension cord is used, it will be anything from 12 awg to 16 awg, but even if 12 awg, will likely not have the sideways prong on the plug.

Do Americans now say "20a" when they really are talking about 15a with 14 wire, or do they mean actual 20a with 12 wire and the sideways plug-ins?

I get the strong impression on this forum they say "20a" no matter what. True? Makes it hard to know what people are really talking about without a translator/interpreter/cultural advisor. :)

The OP can at least confirm he means 20a for real in this case.

Thanks.

If I couldn't live on 15 amps I'd quit.

20 amps will be lots. I'd consider running a 500 watt electric heater, to reduce propane use.

I often boondock in winter on just 15 amps. I do have a hybrid inverter/charger which allows me to "dial down" demand to 13 amps, preventing any over load.

Lonnie,

You will also want to note if there are other things running on this circuit, like a freezer in the garage. Easy to over look and each item adds up.