Power Protection Device, Do you?

Have a Progressive EMS unit and wired so even the Generator power has to go through it.

I just purchased a Hughes Autoformer 50amp for my rig. I frequently experience low voltage conditions at various places I camp. I am currently at a seasonal site and have been experiencing voltage as low as 98v and never goes above 115v with no load.
With the Autoformer plugged in, my voltage maintains at 117 to 122 volts even under load conditions. This is probably the best $500 I have spent in a long time. It does offer some surge protection, but not like a true surge protector. That will be my next purchase.

I use the Surge Guard as seen here:
Surge Guard at Camping World
It took me having appliances blown up twice to get the message. Don't wait that long! Both times the service center did not properly attach the cord to the RV and the ground (or neutral?) did not connect causing an over-voltage condition (at least 150V....that's as high and my meter reads). Since the installation I have come upon 1 campground where there was a defective breaker and power on only one leg (voltage unknown) and one with no apparent ground. The campgrounds actually did not seem to care, they just moved us to a different location. In neither case did I ever see someone come to look at the faulty connections.
I installed the hard mount unit as I happened to have easy access to the wires but the portable units work just as well. They are just not quite as convenient.

Im using the Progressive Industries EMS-LCHW50 (50A hardwire) - its saved me TWICE now....once from a reversed polarity pedestal (the park owner didn't even know they had an issue)....several pedestals were wired wrong....and a second time from low power (under 103vac that wouldint even latch my transfer switch).

it would have saved me 3 times (but i didn't own it) and i burnt up my converter charger (at a race track) and had to run my generator more than planned that weekend.

Mine is wired IN LINE (no chance of theft) between the pedestal & my transfer switch.

IMO you want more than just a surge protector - you want something thats gonna protect you from bad wiring (open ground, too high or too low voltage and 240v).

I mounted mine in the electoral bay -

In my opinion, Progressive Industries makes the best you can get for RVs. They also come with a lifetime warranty that they live up to. We have the EMS-HW50C on our coach and it has worked impeccably.

Hi,

I do use one of those 3 LED voltage detectors to make sure that the polarity is correct before plugging in my RV to the campground power.

I plugged in once to a reversed polarity campground site (30 amps) and it shorted out my inverter/charger. This might not happen with every inverter/charger, as mine is special with a ground to neutral bond that is not in most inverters.

I do not have undervoltage protection, but also have a digital volt meter plugged into my kitchen receptacle, where I can watch the voltage. Look for a Kill-A-Watt, a modern version of what I have that can also measure wattage being used by the receptacle that is built into the device.

When I am under 105 volts, I will either shut off my A/C or plug in my voltage booster transformer.

When visiting friends, it is best to plug in to the laundry room receptacles. They have dedicated 20 amp circuits (required by NEC code since the 60's) that run to the washer and dryer. Those two circuits are not shared by the house loads, such as any exterior receptacles, that might have all the bedroom loads on it, or other loads.

It is also possible to build a 30 amp 4 wire dryer adapter to a 50 amp RV receptacle. You only need the 30 amp dryer cord, and a 50 amp surface mount stove receptacle, both sold at Home Depot or any hardware store. Then you can visit friends homes, and have a full 7,000 watts available to run two A/C units, or many other things all at once!

Fred.