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Baja_Man's avatar
Baja_Man
Explorer
Aug 04, 2021

Surge Protector - Hardwired without transfer switch?

My new to me TT does not have a surge protector (SP), portable or hardwired. It also does not have a transfer switch (TS). I have not yet verified, but I assume the power cord used to connect my trailer to a power source (ex. power pedestal at campground) is connected directly to inverter/charger box where 120V and 12V fuses/breakers are located.

The last hardwired SP I installed was in my TH that had a built in genny. I installed the SP before the TS.

I want to install a SP in my TT. MY TT is 30amp.
Do I need to have a TS to utilize ALL aspects/benefits of the SP?
Or can the SP be installed anywhere between the power cord and the inverter/charger?

Thanks!

13 Replies

  • No TS needed unless you add a second power source such as an inverter.

    Just remove the wire from the main panel and connect to the SP inlet. Get a like piece of wire and connect the SP out to the panel. Done. This makes it easy to remove if needed.
  • Have installed a 30A hardwired Hughes Watchdog. Didn't put in a "switch" (aSSume you mean a switch to bypass the SP) but will be doing it soon. Found out that the SP would kick out when running AC on generator due to voltage dropping below (very momentary!!) the "protection" low limit. Since trailer is now on our own 10 acres (not travelling anywhere), only running when needed on generator, I have disconnected the SP so we can run the AC!! Hughes sees no problem with the unit, the gen mfg doesn't see any problem with the genny!! So, no SP being used at this time!!

    Just thought I'd mention it to help with your decision!!

    So, are you happy with your Outdoors "replacement"??!!