Originally Posted by Icescreamer
Can someone shed some light on what an EMS is? Seems like a lot of you are recommending it and I have no idea what you are talking about.
Appreciate any insight.
An RV Electrical Management System protects your trailer and all the electronics from surges, spikes, and damaging conditions from faulty shore power supplies in campgrounds. I've provided a link to a very good model for 50 amp. They also make them for 30 amp. They aren't cheap, but just consider it cheap insurance - compared to the kind of damage that can occur.
I plug mine into the shore power pedestal before I unhitch. When plugged in, it will tell you if there are any problems with the power supply. If there is, I move to another site. It will also protect from low voltage (which can damage your A/C) and other dangerous conditions.
You can have them hard-wired into your trailer, but then it's a pain to remove when you trade. However, the portable can be stolen. So it's a personal decision as to which way you go. I chose portable - I've never had anything stolen in a campground.
2015 Jay Flight 32RLDS Elite
2012 Chevy 2500HD Crew Cab LTZ (6.6L Duramax/Allison)
Equalizer Hitch (1200# bars)