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Old 10-31-2019, 01:12 PM   #1
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Model: Thor Outlaw 38RE
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Rookie Question - surge protector

When I talked to a seller and asked if a surge protector would convey, be said that the RV has one built in and doesnít need one. Thatís counter to what Iíve heard elsewhere.

I donít want to go without protection. So - is he correct?

Itís a 2017 Thor Outlaw 38RE.

And it I do need to get a protector, what should I look for? Any pros and cons?

Thanks in advance!
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Old 10-31-2019, 01:17 PM   #2
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It's always better to have one...
I have a Progressive Industries EMS, and I always use it. My Tiffin also has a built-in protector.
I'd rather stop the problem at the pedestal; than let it got to my RV's electrical system...
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Old 10-31-2019, 02:33 PM   #3
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Quote:
Originally Posted by WearyTraveler View Post
When I talked to a seller and asked if a surge protector would convey, be said that the RV has one built in and doesnít need one. Thatís counter to what Iíve heard elsewhere.

I donít want to go without protection. So - is he correct?

Itís a 2017 Thor Outlaw 38RE.

And it I do need to get a protector, what should I look for? Any pros and cons?

Thanks in advance!
As far as I know you do not have an EMS. Only Aria, Tuscany and Venetian coaches in the Thor MC stable that are equipped with Surge Guard electrical management system (EMS). Surge Guard is only one company of several that makes a RV EMS. They are two types of EMS - portable and hard wired. If you chose a hard wired, then do you install it before of after the ATS?
I have a Progressive EMS with remote monitor installed after the ATS. Progressive recommends their AMS be installed before the ATS to protect the ATS. I prefer it after the ATS so I can monitor the generator's load and frequency.
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Old 10-31-2019, 04:03 PM   #4
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He may have installed one after he bought it. A lot of people here have done that. Ask him.
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Old 10-31-2019, 10:24 PM   #5
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Quote:
Originally Posted by Bob Denman View Post
It's always better to have one...
I have a Progressive Industries EMS, and I always use it. My Tiffin also has a built-in protector.
I'd rather stop the problem at the pedestal; than let it got to my RV's electrical system...
I have to concur
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Old 10-31-2019, 11:14 PM   #6
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Thank you all for the info. I just bough one. Progressive 50A. Figure it’s cheap insurance...
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Old 11-01-2019, 01:40 AM   #7
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To my knowledge no RV's come with an EMS installed. There is a company using the letters EMS but they are installing a load sheading system. Complete different thing. There are 3 things on the market as far as protection goes.

Surge protector. It is just that protecs for high electric surge and nothing more. It is a one hit wonder. It works one time and self distructs.

EMS. protects from high and low voltage. Will nor let voltage thru if the source is not correct.

Hughes Autotrans boost low voltage 10%

Hughes auto trans in front of EMS is the best protection.
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Old 11-01-2019, 03:38 AM   #8
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We use a surge protector. Cheap insurance IMHO. Couple weeks back we were in a full campground, state park in Indiana. Walking around the campground I was surprised at how many TT ‘s and MH were plugged into the pedestal without any kind of surge protection. To each there own. I’ll use the surge protector.
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Old 11-01-2019, 11:57 AM   #9
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That's a good description of all three systems.
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Old 11-01-2019, 12:34 PM   #10
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You are much more likely to find low voltage than get hit by a large surge in a campground. Surge protector on my house is 30 years old and has never seen a surge. Two lights on greet me every AM.
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Old 11-01-2019, 12:37 PM   #11
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You are much more likely to find low voltage than get hit by a large surge in a campground. Surge protector on my house is 30 years old and has never seen a surge. Two lights on greet me every AM.
So then something like the Hughes would be better than just a surge protector?
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Old 11-01-2019, 12:41 PM   #12
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Originally Posted by Bob Denman View Post
It's always better to have one...
I have a Progressive Industries EMS, and I always use it. My Tiffin also has a built-in protector.
I'd rather stop the problem at the pedestal; than let it got to my RV's electrical system...
Yo, BOB. Check and see if you have a built in load sharing device. I haven't heard of a built in EMS yet. The is a company (forgot the name) That installs a load sharing device with the EMS letters on it. Very confusing.
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Old 11-01-2019, 12:48 PM   #13
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So then something like the Hughes would be better than just a surge protector?
Not unless it is a newer Hughes autotrans with built is EMS and surge protection. You MUST read the specks. on all of them.

Surge Protector, EMS and Autotrans are 3 entirely different things and do different jobs. EMS Includes a surge protector. The general public missuses the name Surge Protector because they don't know any better and nobody corrects them so they think they known what they are talking about.

I was installing Surge Protectors in the 70's LONG before any EMS was thought about.
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Old 11-01-2019, 01:09 PM   #14
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Originally Posted by cavie View Post
Yo, BOB. Check and see if you have a built in load sharing device. I haven't heard of a built in EMS yet. The is a company (forgot the name) That installs a load sharing device with the EMS letters on it. Very confusing.
I should have been more precise with my language...
The Tiffin has a built-in surge protector lurking in the "Juice-Bay"...
I felt that Progressive's EMS would offer more protection, and stop potential problems out at the pedestal.
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Old 11-01-2019, 02:28 PM   #15
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Originally Posted by cavie View Post
To my knowledge no RV's come with an EMS installed. There is a company using the letters EMS but they are installing a load sheading system. Complete different thing. There are 3 things on the market as far as protection goes.

Surge protector. It is just that protecs for high electric surge and nothing more. It is a one hit wonder. It works one time and self distructs.

EMS. protects from high and low voltage. Will nor let voltage thru if the source is not correct.

Hughes Autotrans boost low voltage 10%

Hughes auto trans in front of EMS is the best protection.
The Surge Guard ATS model 40450 is installed on Thor MC's high end diesel coaches, all Entegra diesels and high end Newmar diesels. <https://rvpower.southwire.com/products/transfer-switches/surge-guard-50a-rvc-automatic-transfer-switch-model-40450/>. It has all the EMS functions except for load shedding. The reason this ATS is used is it is RVC compatible for remote monitoring allowing better management of shore power and generator power. While it cannot automatically boost voltage 10% like the Hughes, SG 40450 does so much more than a typical EMS plus ATS combination.
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Old 11-01-2019, 04:59 PM   #16
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The Surge Guard ATS model 40450 is installed on Thor MC's high end diesel coaches, all Entegra diesels and high end Newmar diesels. <https://rvpower.southwire.com/products/transfer-switches/surge-guard-50a-rvc-automatic-transfer-switch-model-40450/>. It has all the EMS functions except for load shedding. The reason this ATS is used is it is RVC compatible for remote monitoring allowing better management of shore power and generator power. While it cannot automatically boost voltage 10% like the Hughes, SG 40450 does so much more than a typical EMS plus ATS combination.
Yep. That is the latest thing out on the market. EMS/ATS combo. No autotrans

Very hard keeping up with all the new market staff and even harder to try and explain it all to a newbee
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