Forum Discussion
SoundGuy
Jun 19, 2018Explorer
Lenny K wrote:
Does this setup work for 50 amp if you use a 50 amp adapter?
SoundGuy wrote:
50 amp RV service is actually 100 amp service consisting of 50 amps across each of 2 legs so obviously if you wanted to check both legs you'd have to use 2 monitors. The simpler and better solution for those who have a rig wired with 50 amp main service is to invest in a 50 amp EMS which is designed to check & continuously monitor both legs of that 50 amp service.
DrewE wrote:
Basically correct, but it's inaccurate to call it a 100A service. It is a 50A 120V/240V split phase service. None of the wires or connections ever have 100A flowing, and you don't need wire sized to carry 100A, and you cannot power a single 100A 120V device should you happen to have such a beast. You can use up to 50A at 240V, or have two legs of 50A at 120V, but not a single leg at 100A.
No need to blow this out of proportion, I never said anything about 100 amp flowing through any single connection nor powering a single 100A 120v device. :S I merely responded to the question as to whether polarity checkers or type of dongle I built for myself for use with 30 amp campsite service is suitable for also checking 50 amp campsite service, the answer being no because 50 amp RV service is across 2 legs whereas 30 amp service is across a single leg ... but of course you already know that. :R
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