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04-06-2020, 08:30 AM
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#1
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2 Rivet Member
2021 30RB Classic
Lombard
, IL
Join Date: Mar 2020
Posts: 48
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Surge Protector: Internal vs. External?
Hello all
Just joined and we'll be ordering our new Airstream hopefully this week.
Trying to decide if an internal or external is the way to go on surge protector. A little nervous if there's a huge power spike (lightning strike, etc?) may fry an internal unit causing issues and/or access for repair replacement of componentry?
Dealer will include SP of my choice and install if I decide on an internal unit.
Thanks for any help.
Greg
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04-06-2020, 08:45 AM
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#2
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Rivet Master
2012 25' FB International
Trent Woods
, North Carolina
Join Date: May 2013
Posts: 3,120
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I won't try to influence your choice as you will see both used and liked. Just don't let anyone tell you that you need the internal model to see operating parameters. I have a Southwire external and it communicates via Bluetooth to an internal display.
Larry
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04-06-2020, 08:49 AM
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#3
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Site Team
2017 30' International
Broomfield
, Colorado
Join Date: Apr 2009
Posts: 3,555
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I like my external one. Progressive Industries - it not only protects for surge but also low / high voltages, etc..
Has an LED display that shows you current / voltage on each leg, plus any fault information. If it were to fail I am not stranded without 50A shore power, I just plug into the pedestal without it.
https://www.progressiveindustries.net/ems-pt50x
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04-06-2020, 08:55 AM
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#4
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,000
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^
X2
Can be used other than with the AS, plus if it does get cooked it's easier to return for re-build.👍
Bob
🇺🇸
__________________
I’m done with ‘adulting’…Let’s go find Bigfoot.
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04-06-2020, 09:37 AM
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#5
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2 Rivet Member
2018 28' Tommy Bahama
Silver City
, New Mexico
Join Date: Aug 2017
Posts: 76
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FUNCTION: Both the same
THEFT PROOF: Internal is tougher to steal but, nothing is really theft proof.
(I have an external with cable lock - a hefty cable/lock cutter will negate the "theft-proof" status - if they really want it, they'll get it.)
If your dealer is offering to install a "free" internal, I'd go for it.
__________________
Class A Safari Trek 2830 - SOLD; TC Lance 1010 - SOLD;
TT Arctic Fox 30U - SOLD; TT Forest River Mini - SOLD;
Class B+ Pleasure Way Pursuit - FS; $$$$ - GONE
If it ain't broke I can break it
A dime still makes a pretty good screwdriver
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04-06-2020, 09:39 AM
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#6
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2 Rivet Member
1992 26' Land Yacht
Wickes
, Arkansas
Join Date: Dec 2007
Posts: 70
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Sticky Fingers Protection
One benefit that I have found for the internal hardwired m,odel is that I do not habe to worry about someone having "Sticky Fingers" borrowing it.
__________________
Bob & Dorothy
1992 Land Yacht TT
WBCCI # 4550
Arkansas Razorback Airstream Club
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04-06-2020, 09:40 AM
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#7
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Moderator
2015 25' FB Flying Cloud
2012 23' FB Flying Cloud
2005 25' Safari
Santa Rosa Beach
, Florida
Join Date: Jul 2006
Posts: 13,159
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Greetings from the Florida Panhandle
Hi Greg. I would definitely recommend the external unit. If an internal unit trips, you may end up dead in the water if it cannot be reset. With the external unit, you can just find another power source and plug in directly.
Brian
__________________
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with ProPride
2020 Silverado 2500 (Vivian)
2023 Rivian R1T (Opal)
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04-06-2020, 09:45 AM
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#8
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Married with Airstream
2004 25' International CCD
Vancouver Island
, British Columbia
Join Date: Apr 2018
Posts: 934
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IMHO the external unit is the way to go ... you can secure the unit to prevent it from "growing legs". If it trips or blows can be easily replaced etc.
__________________
La Dolce Vita Brick & Mona
We're Married With Airstream dot com
2004 International 25CCD Registered Name "Blue Streak"
2013 F-150HD FX4 SuperCrew Lariart (MaxTow) "Red Dragon"
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04-06-2020, 09:49 AM
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#9
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4 Rivet Member
2016 30' Classic
Houston
, Texas
Join Date: Aug 2015
Posts: 344
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I am a fan of the Progressive Industries external unit EMS PT50X. I lock it to the campsite's power pedestal. Easy. Not really certain where I would put an internal unit in my 30' 2016 Classic had I gone that route. Have not had a need to read the monitor remotely via bluetooth, etc.
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04-06-2020, 09:57 AM
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#10
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.-. -...
2017 25' International
Niagara-on-the-Lake
, ON Canada
Join Date: May 2016
Posts: 1,837
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All of the internal units that I have seen hum when in operation. If you have a FB model this could be annoying when trying to sleep.
__________________
Ray B.
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04-06-2020, 10:07 AM
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#11
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3 Rivet Member
2016 27' International
Anacortes
, Washington
Join Date: Jul 2017
Posts: 103
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We had an internal one installed before picking up the new AS at the dealer. Out of sight, out of mind, why not? But they never told us about the things we would experience, thus some consternation I had before finally learning. For instance:
1. When connecting to shore power, or to a generator - it takes seemingly a minute or more before you will hear a clunk which is the sound of the SP approving the power. Lights on!
Sometimes it seems forever! Just relax. It took me too long realizing the delay is just the SP checking things out.
2. The SP at least in our case was installed behind the power panel. So, to see what is happening with it, one has to remove the power panel. Ugh.
3. One other thing, and it relates to the Camco power cord dog-bone adapters. I do not recommend these at all! The ground pin is horribly defective. My first one broke off and I did not realize it had, but after much grief in why my SP was seemingly not working, I found the ground pin was missing. Stupid me I bought another one so I could get power back. It wasn't long before the pin broke on that one. Looking the pin over, it is so poorly manufactured - do not buy. Harbor Freight sells a really nice dog-bone, well made for what $6. I bought two. Impressive.
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04-06-2020, 10:12 AM
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#12
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Moderator
2004 30' Classic Slideout
Fenton
, Missouri
Join Date: Mar 2002
Posts: 10,408
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I went with the external unit also. I carry a separate locking device to keep it from easily being lifted although nothing is foolproof. After a lot of comparisons I settled on a Progressive Industries EMS PT30x. I chose it specifically because of it's warranty both on normal usage and the fact that Progressive will also replace or repair it if it sacrifices its life saving my trailer. Not all lifetime warranty units are under warranty once they give up their life on a surge. It pays to read the warranty fine print when you shop. There are other lifetime warranty units out there, but in their warranties they tell you that the warranty does not cover the unit giving up its life due to voltage surges. So in those cases they did their job, but now you have to buy a new one.
Jack
__________________
Jack Canavera
STL Mo.
AIR #56 S/OS#15
'04 Classic 30' S.O.,'03 GMC Savana 2500
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04-06-2020, 10:18 AM
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#13
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Rivet Master
2017 16' Sport
N/A
, N/A
Join Date: Nov 2017
Posts: 1,789
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Worth noting, the Progressive Industry EMS has a lifetime warranty, good because these units run a few hundred dollars. I tether mine with a cable and lock to the campground pedestal, best case is it makes stealing a little difficult.
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04-06-2020, 10:22 AM
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#14
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1 Rivet Member
2014 30' International
Delphi
, Indiana
Join Date: Sep 2017
Posts: 14
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Surge Protector
We have a hard wired surge protector installed under the refrigerator behind the breaker panel. My only comment is that if you get the "hard wired" model you SHOULD ALSO HAVE THE REMOTE DISPLAY INSTALLED - they are inexpensive and easily allow you to easily monitor line voltages, amp usage, and faults. I installed the remote display a few years ago - simple
straightforward install. Also, makes it easy to track how much current each appliance uses when plugged into shore power, if you like to keep notes about that sort of thing, so when you are plugged into 15 or 20 amps at a small campground you will know exactly what you can run.
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04-06-2020, 10:22 AM
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#15
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4 Rivet Member
2012 28' International
Prince Edward County
, Ontario
Join Date: Nov 2013
Posts: 338
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We've had the Progressive Industries external unit for over five years with no trouble at all. It even shut down once to protect us and the AC from low voltage. I have no experience with the internal model.
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04-06-2020, 10:25 AM
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#16
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3 Rivet Member
2013 30' Classic
Key West
, Florida
Join Date: Dec 2015
Posts: 186
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I installed an internal model EMS-HW50C from Progressive Industries with a wired remote control & display. Works flawlessly, comes with life time warranty. In 5 years use has tripped twice due to power issues that potentially could have damaged the trailer electrics.
The unit has a "by pass" switch on the control unit, but only use it if you are confident that the detected fault causing the unit to trip, wont damage anything or cause a safety issue.
An internal unit properly installed will add value and convenience to your rig. The only reason I can think of to use an external surge protector is that if you have more than one trailer and share the unit between them.
Be sure to select a UL rated system, no matter which way you go.
www.progressiveindustries.net
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04-06-2020, 10:32 AM
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#17
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Rivet Master
2008 19' Bambi
2012 23' Flying Cloud
2016 25' Flying Cloud
Bandera
, Texas
Join Date: Jun 2012
Posts: 786
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We have an “outie”, a simple one from Camco. We had a Progressive EMS but found when used in tandem with a voltage regulator (which we bought for a 2 month México caravan) we had continual on-off cycling. Were I considering a new unit, I might consider installation of an “innie” voltage regulator to deal with low voltage situations.
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04-06-2020, 10:55 AM
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#18
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2 Rivet Member
2014 27' FB International
Dallas
, Texas
Join Date: Dec 2013
Posts: 29
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Surge Protector
We had the Progressive Industries HW50C Hardwired EMS Surge & Electrical Protector (50 Amps) installed when we bought our 27 FB Sterling. I absolutely LOVE having an internal unit. Contrary to previous post there is NO lag time when hooking up to power. The display unit was mounted above our light switches right inside the RV door, making viewing easy from say, the dining table. It has saved our butt a number of times, including identifying a reverse polariry issue, which the RV park corrected later. To override the system, you simply turn it OFF. Power then works, but is NOT protected (or recommended).
I saw it on Amazon today for $325 - worth every penny.
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04-06-2020, 10:58 AM
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#19
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2 Rivet Member
2021 30RB Classic
Lombard
, IL
Join Date: Mar 2020
Posts: 48
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Quote:
Originally Posted by Midwest Greg
Hello all
Just joined and we'll be ordering our new Airstream hopefully this week.
Trying to decide if an internal or external is the way to go on surge protector. A little nervous if there's a huge power spike (lightning strike, etc?) may fry an internal unit causing issues and/or access for repair replacement of componentry?
Dealer will include SP of my choice and install if I decide on an internal unit.
Thanks for any help.
Greg
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Would also appreciate any brand recommendations...
Thanks!
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04-06-2020, 10:59 AM
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#20
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3 Rivet Member
2018 16' Sport
St. Louis
, Missouri
Join Date: May 2019
Posts: 217
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30 amp progressive internal. A little over a year, tripped once, I have remote led mounted at foot of bed. Zero humming noise. There is enough to worry about hook ups, one less thing if it is internal.
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