Protecting your Trailer’s Electrical System & Electronics

We’ve been traveling for almost a year now without a surge guard on the Airstream. I know, dangerous stuff. One zap to the trailer could cause a total electrical meltdown and not just to the expensive electronics inside — the entire Airstream electrical system. There were quite a few times that we’d run out in the rain during a lightning storm to unplug the Airstream. And let me tell you, it gets stuffy in here quick without the AC running! Surges can happen even during a clear sky, so it’s best to make sure your electrical system is protected. Being a vintage model (sometimes difficult to find replacement parts), we wanted to make sure that not just the electronics were protected, but the entire electrical system as well.  We ended up going with the Southwire SurgeGuard 34830 (model 34850 if you have a 50-amp system). Southwire offers a variety of models depending on your specific needs. We decided on the 34830 because of the high joule rating (surge suppression measurement), availability of a factory lock, and the diagnostics system built into the unit. Hookup couldn’t be easier. Just plug your trailer shore power connection into the SurgeGuard and then to the power pole. I really like how it checks for grounding and polarity issues, high and low voltage, and does all of this before sending power to your trailer. Your power source is analyzed within 128 seconds of being plugged in and if all checks out, it sends the power to your trailer.  For those of you who are looking for a hard-wired solution, you’d want to look at models 35530 or 40420. They also sell an extension cord so you can stow the surge away and out of view.

Now there’s no more running outside to unplug during storms or worrying about a surge getting through to the Airstream due to poor power quality. If you haven’t already protected your trailer, check out Amazon or your local RV shop to find the best model for you.

Jason

Jason

Jason renovated a 1975 Airstream in 2016 and travels the US with his wife and mohawk-sportin' poodle. He's a student pilot, self-taught Airstream plumber/electrician, natural navigator and a lover of the outdoors.
Jason

Leave a Reply