30 or 50 AMP surge protector

if your rv is set up for 50 amp power get a 50 amp surge protector. if you ue a portable one like me, just plug your surge protector into your 30 amp adapter cable.

Steve

Is your rv 50amp get 50amp will work with 30 AMP campground service
If you're rv is 30 AMP get that

I have a 50amp trailer and a 50 amp protector, when plugged into 30amp I get a fault.
It still works however(the power). Just has a fault light.

You can always use a 50 amp EMS with 30 amp service, but you can't go the other way. I'd get a 50 amp EMS and call it good. I had 2 SurgeGuard and had both of them fail due to water intrusion. The new ones look different and may work better but I wouldn't trust them. I'd go with the EMS-PT50X.

I would go with an autoformer, which includes surge instead of just a surge device. Low voltage kills far more than high voltage surge.

RockyMt wrote:
I have a 50amp trailer and a 50 amp protector, when plugged into 30amp I get a fault.

What is the fault? Best to have the error fixed.

For the OP get full EMS protection not just the lowest cost unit with only surge protection. And +1 to get a unit that matches your RV power.

Like said, if your RV is 50 amp, get a 50 amp unit. It will work on 30 amp with an adapter.

Best unit to get is the Progressive Industries EMS, to protect your trailer. The cheap surge only units are no much use. The EMS units monitor the power voltage for high and low as well as the frequency and surge protection.

I like the hard wired unit mounted in the RV with the remote read out pannel,
https://www.progressiveindustries.net/ems-lchw50

An autoformer with surge protection, as pianotuna suggested, is a better way IMO.

pianotuna wrote:
I would go with an autoformer, which includes surge instead of just a surge device. Low voltage kills far more than high voltage surge.

If you get an actual EMS unit, it will protect from surge and low voltage. I highly recommend the Progressive Industries hard-wired version. A little more effort to install, but far more convenient from there on.

Yes, match your unit with the rating of your camper. Our camper is a 50A setup, though it rarely ever pulls more than about 25-30 amps. We have a 50A hard-wired EMS.

Lwiddis wrote:
An autoformer with surge protection, as pianotuna suggested, is a better way IMO.

With an EMS, low voltage will require that you pack up and go home if the voltage is low. This will help the shortage of campsites issue.