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Old 01-04-2009, 05:30 PM   #1
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In a couple of weeks, we will be heading out to Mexico for approximately two months and I am concerned as to whether or not I should purchase a surge guard. I currently have the newest editon of the Hughes Autoformer that has built in surge protection.
Most parks in Mexico are noted for high voltage and of course are not always 50 amps. I would be using a pigtail going down to either 30 or 20 amps.
Comments and thoughts as to whether or not I should supplement my autoformer with a surge guard or forget the autoformer and purchase a surge guard.
Thanks in advance for your comments/recommendations.
Bob
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Old 01-04-2009, 05:30 PM   #2
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In a couple of weeks, we will be heading out to Mexico for approximately two months and I am concerned as to whether or not I should purchase a surge guard. I currently have the newest editon of the Hughes Autoformer that has built in surge protection.
Most parks in Mexico are noted for high voltage and of course are not always 50 amps. I would be using a pigtail going down to either 30 or 20 amps.
Comments and thoughts as to whether or not I should supplement my autoformer with a surge guard or forget the autoformer and purchase a surge guard.
Thanks in advance for your comments/recommendations.
Bob
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Old 01-04-2009, 08:10 PM   #3
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Bob, I use both in mine. I have the autoformer (Power Master in my case) first in line to handle the low/high voltage situations followed by a Surge Guard. The autoformer has some surge protection, but I believe the surge guards are a bit stouter. I use this set up here in the US. I don't know that I would want any less in Mexico.
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Old 01-05-2009, 04:48 AM   #4
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Bob,

I also have used both for several years. I use a Progressive Industries EMS HW-50C instead of the Surge Guard. These units (both Progressive and TRC’s) are much more than a surge protector. They monitor(24/7)not only voltage levels – but also items such as line frequency, open ground, reverse polarity and will protect you against an open neutral. Open neutral = fried equipment. I also have a remote display inside the coach which tells me the voltage level and amp usage on each of my 50 AMP circuits. If the EMS has to kill the power to the RV it also displays an error code telling me why.

My EMS is permanently installed because I will not travel without it. I chose the Progressive unit because the “MOV board” is user replaceable vs. having to send the Surge Guard back to the factory. I am not sure that this is such a big deal, as in 10 years I have not had to replace one. I have the EMS first in line to protect the Autoformer. Living in Florida, I prefer not to have to ship a 40 pound “boat anchor” back and forth across the country for repairs, warranty or not.
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