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Old 02-01-2011, 03:52 PM   #1
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Surge Protection

I am interested in feedback from anyone that has installed one of the Progressive Industries surge protection units. Perhaps the EMS-HW30C?

I am giving thought to installing such a unit in our AS.
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Old 02-01-2011, 04:26 PM   #2
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I don't have one but they're just MOVs in a metal box.

They will provide a degree of protection from transients, for sensitive electronics. Since sensitive electronics generally already have their own MOVs, the additional surge protection only helps for those transients that are big enough to blow up the MOVs in your electronics but not big enough to blow up the somewhat larger MOVs in the Progressive Industries device.

It is a fairly narrow window that isn't hit very often, which is why I don't have a surge protector.
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Old 02-01-2011, 05:30 PM   #3
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surge protector

The Airstream recommends a surge protector of some kind, however in reality probably only one in twenty use a surge guard. ( info from dealer)

I have learned that surge protectors can explode and generate shrapnel and start fires. ( some evidence online) Thus a "permanently" mounted surge protector could theoretically present a risk.

I recently purchased an inline " Surge Guard" for my unit.

In our fifth wheel (traded in for the AS) we plugged into a very respected and relatively new campsite. A power surge occurred and blew out our $1700 inverter!!!!

Surge Guard---don't leave home without one!!
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Old 02-01-2011, 09:46 PM   #4
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Quote:
Originally Posted by Zigidachs View Post
In our fifth wheel (traded in for the AS) we plugged into a very respected and relatively new campsite. A power surge occurred and blew out our $1700 inverter!!!!

Surge Guard---don't leave home without one!!
How do you know a surge protector would have helped?
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Old 02-02-2011, 02:51 PM   #5
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Surge Guard

Great question!!! But I certainly am aware of what happened without it!

I don't think there is any device which will protect our units in all cases, but--some insurance is better than none.

Since that very costly event, I also have "rigged" a circuit testor to check the "pole" before plugging in. I found the info online and can include it if you are interested.

My insurance covered all but the deductible, which was the dealer responsibility who made the mistake in the first place. Again this all happened on a fiver.

Zigi
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Old 02-02-2011, 03:36 PM   #6
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Quote:
Originally Posted by nickmeloy View Post
I am interested in feedback from anyone that has installed one of the Progressive Industries surge protection units. Perhaps the EMS-HW30C?
nickmeloy......I didn't think I wanted to spend the money ($260) to buy one until I spoke to two campers in a state campground we were staying at in Florida that both had major damage from a problem in the campground electric service that wiped out their refrigerator, TV and some other electrical appliances. The one camper was moved next to my site while they were getting replacement parts for his RV. I tried to pick up a device in Florida and they only had a less expensive device that only provided surge protection. As soon as we got home I ordered a Progressive Industries Electrical Managment System (EMS-PT30C) that provides protection for high voltage, low voltage, surge protection, reverse polarity protection, open neutral protection, open ground protection, A/C frequency protection, and accidental 220V protection. The unit will shut down the service to your RV if there is any problem with the service coming to the RV. It also displays the voltage, amps, line frequency and the error code of any problem it has detected. It's been working for 2-4 month periods of continuous camping and have not had any problems. I have noticed that when there is an interruption in service from the utility, the device has a delay built in that delays the unit from reconnecting to the campground service as soon a service is restored. The only issue is that you may have to lock it at the campground electric service connection so it does not find a new home.
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Old 02-06-2011, 03:54 PM   #7
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surge protection

on my last trip (last fall) i had my converter (or is that inverter) go out, I could not get my batteries charged from shore power. I was traveling the end of Oct. and the solar was very limited. My question, is the surge problem common enough to justify the costs (275 or so) for a good surge protector for the system? Do all of you use surge protectors? I suspect that, in spite of traveling most of the trip on solar, I did hit bad power during one stop and shortly after, I was no longer get charge to the batteries. I have a new converter installed by the dealer, and the five hundred bill is not wanted again. advice appreciated. I have had the unit for two years, love traveling in it and plan on leaving again this week (out of the Wisconsin snow to the south-lands) Thanks for any thoughts you might share.
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Old 02-06-2011, 08:48 PM   #8
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I believe that surge protectors are a poor value for the cost and weight, which is why I don't use one.

The MOV style ones in the $275 price range mainly protect against lightning hits but with most campground wiring being underground it is really rare to get a bad enough hit through the power lines for the MOVs to help. I've camped in lightning storms on a hill with shore power connected with no concern and no problems.

Converters fail for many reasons or no reason at all and surges are usually not the problem. Wrong voltage, maybe, due to an open neutral. But, a better way to solve that might be to get a dual-voltage converter so it doesn't matter. Xantrex makes a couple that will run on anything from 90-250 volts.

If the campground has an open neutral somewhere and it damages your trailer you can and should get them to pay for repairs, with the assistance of the courts if necessary. There's no reason for this to happen other than poor maintenance and sloppy wiring. I don't think the problem is bad enough to warrant the use of expensive and heavy autoformer-like devices which are the only thing that will really provide any protection.
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Old 02-06-2011, 09:18 PM   #9
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i've seen no thread on the exact model gizmo in the op...

but many older threads are useful on the broader topic.

http://www.airforums.com/forums/f449...ard-57351.html

http://www.airforums.com/forums/f37/...rmer-7248.html

http://www.airforums.com/forums/f37/...city-9309.html

http://www.airforums.com/forums/f37/...ard-68261.html

cheers
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Old 02-06-2011, 11:04 PM   #10
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Surge Protection

Quote:
Originally Posted by nickmeloy View Post
I am interested in feedback from anyone that has installed one of the Progressive Industries surge protection units. Perhaps the EMS-HW30C?

I am giving thought to installing such a unit in our AS.
We have the Progressive Industries EMS for 50 Amp service. I can only relate our experiences.

We were at Lake Mozingo in MO a few times over the last few years. We had no issues when parked in the lower camping area but when parked in the upper area the EMS was constantly kicking the power off. It was so frequent that we just unplugged and ran off of our solar system. We have some friends and family that insist on the upper area ...until last fall anyway. They just would not accept that the AC units in there rigs were kicking on and off and not cooling effectively due to electrical issues at the campground. Neither has surge protection.The electrical system on our friends Nuway was so fried the unit was totaled by the insurance company. Our family members AC was burned out on her MH. Keep in mind that we were unaware that the wiring on the lower camping area had been done by professional electricians and the wiring in the upper camping area by the bath house had been done by city workers. We found this out after the fact.

So IMHO is the Progressive Unit effective and worth spending th $$ on? ??
The answer is a definite yes.

JC installed our unit behind the panel in the underbed storage area which made it easy to connect to the AS electrical system coming into our unit. The control unit is mounted outside the bedside closet/shelf above the nightstand opening for easy access. The connecting line from the unit to the control panel is hidden inside the closet.

We feel the money was well spent and the unit has performed very well.


Hope this is helpful to you,
'shaker
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