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- Thread starter Excalibur
- Start date

If you have answers, please help by responding to the unanswered posts.

Should be fine, on a 50-amp circuit with the dogbone after it for your 30-amp trailer.

-Don- Redcrest, CA

Two ways you can use it. 50-30 and 30-50 adapters so you can plug your 30 amp RV into it's 50 amp outlet and then plug it into a 30 amp outlet NOT only will this work and work very well but the Spike supression is several times greater than if you get the 30 amp model.

Plug it into a 50 amp outlet and use just the adapter for the RV to it.. Half the spike supression of the first opton but still more than a 30 So still good.> Some parks may charge more

No problem doing that. I currently do that without issues.

The 50-amp service is 50-amps each line, for a total of 100 amp capacity when used for 120 VAC each line.Not sure if the 50 monitors each leg for current 25 each or total.

Think of the "50-amp" as if for 240 VAC which is available on a 14-50R.

240 volts times 50 amps=12,000 watts

120 volts times 50 amps=6,000 watts each line for a total of 12,000 watts. Same total power (watts) either way.

IOW, the difference between 30 amp and 50 amp service at 120 VAC is NOT 20 amps, but is a 70-amp difference in capacity, assuming it's wired for the max current on a 14-50R as they normally are. The 30-amp service is a single 120 VAC line, the 14-50R is two 120 VAC lines.

-Don- Redcrest, CA

To add to what Tom just responded, the device does monitor and protect from both over and under voltages. If something should short in the RV, it's own circuit breakers would open before the limit on the source was reached since each RV circuit has a separate breaker, usually either 20A or 15A.Not sure if the 50 monitors each leg for current 25 each or total.

Over current protection is NOT a function of the EMS. that's a Function of the Circuit breakers. The main beaker INSIDE the RV and the park's breaker Outsider the RV. but it's not a function of the EMS.Using a 50 amp on a 30 will not give you over current protection I do not believe. Not sure if the 50 monitors each leg for current 25 each or total.

If you have a display they REPORT the current in each leg but they do not "Monitor" it.Using a 50 amp on a 30 will not give you over current protection I do not believe. Not sure if the 50 monitors each leg for current 25 each or total.

They monitor voltage and possibly some other things but not current. That's the job of the circuit breaker.

RV 50A service is 2 50A legs. The main breaker panel inside the RV is designed to keep them separated so no 240V connection can be made. The 50A CG pedestal outlet is wired exactly the same as a 4-wire 240VAC outlet. this explains everything,Using a 50 amp on a 30 will not give you over current protection I do not believe. Not sure if the 50 monitors each leg for current 25 each or total.