Quote:
Originally Posted by linux3
OK, I'm an EE, retired.
Circuit breakers will trip just in time to protect themselves and burn out anything down stream.
If all you needed is the circuit breakers then why buy a surge protector?
In a proper electrical circuit everything must be sized and rated as required.
The surge protector is there to guard against Brown Outs, high voltage and spikes. Spikes, you know, what you get in a poorly designed campground when someone or a bunch of someones connect or disconnect.
Look, size devices for need not wishes.
But then RV salesman say my Silverado can pull a 32" camper.
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I never said, "All you need is circuit breakers"... I did say that the EMS doesn't protect against amperage overload.....
There is NO amperage protection (only visual monitoring and display) of the amperage load. If you exceed the amperage, it's the circuit breaker, NOT the EMS, that trips to protect the circuitry. So, whether it's a 100 amp, a 50 amp or a 30 amp EMS, it does, as you say, protect against brownouts, surges, spikes, ground issues, hot neutrals, but it does NOT protect against amperage consumption. That's entirely left up to the power panel in the trailer (for trailer distribution) and to the campground circuit breaker for "upstream protection".