acdii

I have this in my trailer, https://www.campingworld.com/surge-g...-amp-hardwired It protects against low voltage as well as surge. It wont connect power to the mains until it has run tests on voltages to make sure it is stable, then after about 3 1/2 minutes will power up the trailer. It is hardwired and it does have the option of a remote panel. I have mine buried under the refer so can't see it, but it works very well. I had a 15 amp extension cord hooked up and with the AC on, it would shut down power after a while as it was detecting low voltage. I checked the extension cord and sure enough, there was corrosion in the plug

Steve83

For my money, the best name in surge suppression is Tripp Lite (makers of the IsoBar - the first surge suppressor with insurance). I'd be looking at these, or something similar:




This is a bidirectional inverter/charger (unlimited UPS/battery bank maintainer):

brwarrior

Yes a surge suppressor will take the hit for things. Some of the newer trailers have a lot more electronics in them or if you bring along electronics (TVs, DVDs, laptops, etc.). The unit I have provides protection for more than just surge (lower or high voltage, miswired receptacles and open neutrals). I know there's one rare issue they can't protect from but I forget what it is exactly and nothing protects from it. These units have a small 2 pole (for the 30amp 120 volt units or a 3 pole for 50amp 120/240V units) definite purpose contactor (see in bluewoo's photos) that the electronics will close when all of the tests complete and pass. A small display will show you current status (voltage, frequency, current, errors).

Bluewoo

It has blocked my power because the camp ground had the AC voltage turned up due to high demand, the camp ground was only half full and my protector would not allow 128 volts to come thru until I hit the bypass on the readout - 1 hour later the power co showed up and reduced it to 120 volts and I was able to turn it back on.
Bypass is just making a connection as if it wasn't there, I was nervous but the KOA told me about the issue so I was ok.

BlackBoost

Yeah too much AC voltage is bad for DC charging systems. My AC/DC Charger/Converter is always unplugged because the DC side is strictly solar charged. The AC side of my TT only powers my air conditioner and the wall outlets in the TT.

tomt5078

This is the one I have and it doesn't work at all - it's being shipped back as we speak - I think its junk - JMO

bmach

Tomt, why do you say it is not working?

i2oadi2unnei2

Not enough content to label it as 'junk'; Maybe you got lucky and got a dud? Or maybe it did its job and protected your stuff then you realized it doesn't work? Again not enough content.

jag1886

Thanks guys. I will look at the Progressive brand.

Like2Hike

On my 12v lead to my 7-pin jack I have a 40A breaker to protect the wire as it runs the length of the frame, engine bay to rear bumper. I wonder if that is what the OP is referring to?