Go Back   Thor Forums > Thor Tech Forums > Motorhome Tech Topics
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 04-24-2019, 01:19 PM   #1
Member
 
Grizz's Avatar
 
Brand: Thor Motor Coach
Model: ARIA 3901
State: New Jersey
Posts: 48
THOR #5141
Power protection?

I have a question. My rig came with a Surge Guard ATS, According to the specs/manual it is supposed to do the following:







Surge Guard* 50A Model 40350-RVC

Automatic Transfer Switch



RVC Compatible with Full RV Power Protection
120/240V, 50A, 60 Hz





  • Transfers to generator power automatically when energized after 30 second delay (generator mode). When both shore and generator power are available, generator dominates after a 30 second delay. Once generator shuts down, shore power activates after 3 second delay.
  • Total electrical protection from faulty park power
  • Provides protection against:
    • Power surges
    • Open ground
    • Open neutral
    • Low (<102V) and high (>132V) voltage
    • Reverse polarity
    • Miswired pedestal
    • High and low frequency
  • Multi-mode surge suppression
  • RVC communications allows instant display of voltage, current, and fault conditions on an RVC compatible device
  • Indicator lights on front of ATS indicate presence of input power for L1 and L2
  • Optional remote power monitor LCD Display (Part number 40299 sold separately)
    • Displays voltage and amp draw (RMS)
    • Easy to navigate faults in plain English
  • 65A, FLA mechanical interlocking contactors
  • UL approved UL1008 full transfer switch rating
  • UL/CUL listed



Do I need/want extra surge/power protection? Like the PI



EMS-PT50X

They both seem to do the same thing?



Or...would a Hughes Autoformer, that seems to do the same thing plus gives you a boost in a low voltage situation be a better option?


Don't know but would like to.
__________________

__________________
Grizz is offline   Reply With Quote
Old 04-24-2019, 02:11 PM   #2
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 1,897
THOR #12231
No, your good to go.... No need to spend extra money.

I installed a Surge Guard (hard wired inside RV) on my RV last winter but I still have the orginal cheaper surge protector that you use at the power pole. So I still plug the cheap one in to see if the pole is Okay before plug the in the RV.

So if you want to have a cheap ($99 or less) to check the pole first that might be something your intested in (but really not needed).

Or if you know what your doing a $15 multi meter will work to check it out as well (lots of youtube instructions on how to use mulit meter).
__________________

__________________
2017 Axis with 25.4 floor plan. Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights.
Long & Winding road is offline   Reply With Quote
Old 04-24-2019, 02:23 PM   #3
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,112
THOR #6411
Yes the devices are equivalent; however, the Progressive EMS has a lifetime warranty An auto transformer draws more amperage from the pedestal in order to increase the voltage up to 10% or 12 volts. Thus, when the pedestal is supplying 6,000 watts at 105 volts (57.1 amps) to the coach with an auto transformer, a coach with an auto transformer will supply 117 volts and 51.2 amps to the coach but draw 63 amps from the pedestal. Hughes auto transformer has some other functions built-in that are the same as found in an EMS.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 04-24-2019, 02:29 PM   #4
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 1,897
THOR #12231
I guess really if your full timing you might see a need for the Hughes but for most of use (IMO) its not needed. Plus they are pricey the last time I looked.

A good quality "built in" surge protector that protects from HI and LOW voltage is all that is needed for 90% of us (IMO).
__________________
2017 Axis with 25.4 floor plan. Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights.
Long & Winding road is offline   Reply With Quote
Old 04-24-2019, 02:35 PM   #5
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 9,222
THOR #8860
My RV also has the onboard power protection. I am going to add the Progressive EMS at the pedestal in order to try to catch any problem before it hits the rig!
__________________
Good Sam Member 843599689
FMCA Member F473304

Current coach: Tiffin Wayfarer 24 BW
Former coach: Thor Outlaw 29-H
Bob Denman is offline   Reply With Quote
Old 04-24-2019, 02:43 PM   #6
Member
 
Grizz's Avatar
 
Brand: Thor Motor Coach
Model: ARIA 3901
State: New Jersey
Posts: 48
THOR #5141
Ok Thanks! I can use a multi meter and that's a good idea.



Seems like the installed ATS with power protection is all I need.



As far as the Hughes Autoformer, it is pricey! I can see how it might be useful if a CG has a low voltage situation but me thinks I'll put that on the back burner for now.



Thanks again I'm sure I will have many more questions and I'm really glad you all are here to answer them!
__________________
Grizz is offline   Reply With Quote
Old 04-24-2019, 02:55 PM   #7
Member
 
Grizz's Avatar
 
Brand: Thor Motor Coach
Model: ARIA 3901
State: New Jersey
Posts: 48
THOR #5141
Quote:
Originally Posted by Bob Denman View Post
My RV also has the onboard power protection. I am going to add the Progressive EMS at the pedestal in order to try to catch any problem before it hits the rig!

I see your point Bob. But I'm thinkin' (probably dangerous!) That the on board power protection does the exact same thing. Stops the problem before it gets to the rig. But I do see the safety factor in having the extra EMS in line. I guess my question is....is it really necessary? The Progressive EMS is about 340.00 the Hughes is about 500.00 so for an extra 160.00 I would get the added power protection and the voltage boost if necessary.
__________________
Grizz is offline   Reply With Quote
Old 04-24-2019, 03:40 PM   #8
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 9,222
THOR #8860
Is it necessary?
Probably not.
Will it help my Missus sleep better at night?
Definitely!
__________________
Good Sam Member 843599689
FMCA Member F473304

Current coach: Tiffin Wayfarer 24 BW
Former coach: Thor Outlaw 29-H
Bob Denman is offline   Reply With Quote
Old 04-24-2019, 03:44 PM   #9
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,112
THOR #6411
You are out west. It 100 F degrees and the campground voltage drops to 103 volts. Your EMS cuts power to the coach to protect the A/Cs and you suffer. With an Auto transformer, the voltage at the pedestal is 103 volts but the voltage the EMS sees is 113 volt and the EMS is happy and both A/Cs keep on humming.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 04-24-2019, 05:51 PM   #10
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 1,897
THOR #12231
Quote:
Originally Posted by Beau388 View Post
You are out west. It 100 F degrees and the campground voltage drops to 103 volts. Your EMS cuts power to the coach to protect the A/Cs and you suffer. With an Auto transformer, the voltage at the pedestal is 103 volts but the voltage the EMS sees is 113 volt and the EMS is happy and both A/Cs keep on humming.
Good point. I guess its all about how much you use your rig and where you use it at.

Full time or even 6 -7 mo a year + you see lots of high temps and have to have your AC all the time = get the Hughes.

Or Mostly a Weekender like me + I can live without my AC for a few hours if the Surge guard says the voltage is too low and turns it off.

Plus my rig is very small so I dont want to take up any extra room (or add weight) more than nessasary. But a large DP Class A like Grizz has.... it might be something to consider.
__________________
2017 Axis with 25.4 floor plan. Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights.
Long & Winding road is offline   Reply With Quote
Old 04-24-2019, 06:38 PM   #11
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 1,112
THOR #6411
Most Thor plant 750 coaches have room for the auto transformer under the bed with all the other electronics. I know mine does.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 04-24-2019, 06:50 PM   #12
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 1,897
THOR #12231
I could make some room under my bed... but its getting filled up with my inverter, surge guard, water accumulator tank, x wires and breaker etc. I have a corner bed.... so by the outside wall I have more room but its not easy to get to.
__________________
2017 Axis with 25.4 floor plan. Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights.
Long & Winding road is offline   Reply With Quote
Old 04-28-2019, 04:51 PM   #13
Member
 
Grizz's Avatar
 
Brand: Thor Motor Coach
Model: ARIA 3901
State: New Jersey
Posts: 48
THOR #5141
Just an update... I bit the bullet and ordered the Hughes AutoFormer. Whats the old saying "Better to have it and not need it then to need it and not have it" I like that one better then, "A fool and his money are soon parted".
__________________
Grizz is offline   Reply With Quote
Old 04-28-2019, 05:03 PM   #14
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 9,222
THOR #8860
Congratulations!
Be sure to let us know how tough the installation is.
__________________

__________________
Good Sam Member 843599689
FMCA Member F473304

Current coach: Tiffin Wayfarer 24 BW
Former coach: Thor Outlaw 29-H
Bob Denman is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 06:21 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2