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Replacement Surge Module for Power Watchdog Surge Protector - 30 Amp

Replacement Surge Module for Power Watchdog Surge Protector - 30 Amp

Item # HU48FR
Our Price: $28.39
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Shipping Weight: 0.28 lbs
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Replaces the surge module for your Portable Power Watchdog Surge Protector (HU97FR). 1-800-940-8924 to order Hughes Autoformers accessories and parts part number HU48FR or order online at Free expert support on all Hughes Autoformers products. Great prices and Fastest Shipping for Replacement Surge Module for Power Watchdog Surge Protector - 30 Amp. Accessories and Parts reviews from real customers.
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  • Reviews (18)
  • Q & A (0)
  • Videos (2)
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Hughes Autoformers Accessories and Parts - HU48FR

  • RV Surge Protectors
  • Surge Module
  • 30 Amp
  • Hughes Autoformers

Replaces the surge module for your Portable Power Watchdog Surge Protector (HU97FR).


  • Replaces the surge module for your Power Watchdog 30-amp surge protector (HU97FR)
    • Module absorbs voltage spikes until it is fully worn out
    • Offers 2,400 joules of surge protection
  • Easy installation - open the surge protector, unplug the worn out module, and plug the new one in
    • No soldering needed


  • Model number HU97FR, Power Watchdog surge protector with Bluetooth - portable - 30 Amp

RSP30PWD Replacement Surge Module for Power Watchdog Surge Protector with Bluetooth - 30 Amp

Replaces RSP-30-PWD

Installation Details HU48FR Installation instructions

Video of Replacement Surge Module for Power Watchdog Surge Protector - 30 Amp

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Hughes 30 Amp Power Watchdog Surge Protector Replacement Module Installation

What's up everybody, it's A.J. with Today we're gonna be checking out this replacement surge module for your 30 amp Power Watchdog smart surge protector without EPO. This is gonna be that part that you replace on the inside here after a few surges and down the line at burns out, you don't have to buy a whole new unit you can just get this part, we're gonna open it up and put it in there. You got a Phillips head screwdriver, I'm gonna remove these six screws all around. The next step is just to unscrew the cap on the plug side, and now you should pull it apart.

Now we're just gonna start pulling apart the plugs, getting that out of the way. All I have to do, is under these three screws here, pull out the bad board and set the new one back in its place. Now we'll just put all the screws back in. With the board screwed back down, just put the plugs back together and just reassemble the whole thing. Really was that easy.

We just used a screwdriver and got them pretty quick. Replaced that board on the inside. Now it should be working like it was brand new. I really like the fact that you don't have to buy a whole brand new one, you can just replace that easy part yourself and now you know how to do it too. Well, thanks for hanging out and I hope this helped..

Customer Satisfaction Score:

Customer Reviews

Replacement Surge Module for Power Watchdog Surge Protector - 30 Amp - HU48FR

Average Customer Rating:  4.7 out of 5 stars   (18 Customer Reviews)

Replaces the surge module for your Portable Power Watchdog Surge Protector (HU97FR).


Ordering and shipping went well and the unit arrived in good shape.

When I ordered the Power Watchdog I liked the idea of the replaceable surge module, the LED status lights that I can use to test the power pedestal plug before I connect my trailer to it, and the ability of the unit to measure the voltage and current and bluetooth that information to an app on my phone. Should there be a power surge, this unit will be one more level of protection for the electronics in the trailer.

I connected the Power Watchdog to power today and connected the trailer to it. The LED lights all lit up green indicating all was well. I downloaded and tested the IOS app that comes with the unit. It is basic, but seems to get the job done. I could see the voltage and current draw of the trailer in "reasonable real time". As I turned items off and on in the trailer, the current draw measured by the Power Watchdog would change showing me the draw of all the electical items on at that time.

So far it works as advertised.............I am looking forward to using it on the next camping trip.

C. C.


After a year, the Power Watchdog continues to work great. I use it a lot to check the condition of the parks power pedestal before I connect my trailer. I also like the fact that I can connect to the unit via the Bluetooth app and monitor the voltage and current being drawn by the trailer. So far the unit works as advertised. I am looking to add some form of cover to the load plug of this unit to help shield it from moisture. I have not had any issues with this, but considering the rain that I camped in during the last trip, I would prefer the electrical connections not be exposed to rain.


Great product perfect fit. Will buy an again if I ever need another one.


Have not had to use it yet. Glad for the peace-of-mind having it.


I have been looking at this Surge protector for a while now. My brother was camping in a private campground this Spring when he began smelling Smokey. When he went to where he was getting his power from his Surge protector had already fused together. Needless to say it saved his RV. This Watchdog Surge protector since it has Bluetooth can warn me a head of time regarding the Campgrounds wire integrity. Thank you...I have been shopping etrailer sometime since 2009.


This is my second purchase from etrailer. The first was a brake controller as I was new to pulling a camper. Both purchases were delivered flawlessly and quickly. The brake controller was as advertised and has worked like a charm. I am confident the new purchase will too should I need it. (It's a replacement module for a surge protector).


I bought this to have on hand if needed. Great feature to be able to change out the surge protector module on the 30 amp power watchdog. So, have not installed this but, I'm sure glad I won't have to buy a whole new power watchdog if the module wears out.


Haven't had to use it yet. Original equipment Works as advertised..


excellent service, arrived ahead of schedule. Everything looks good



I have not used both items yet hopefully I don't










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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Michael B
Installed by:
Michael B
Employee Dustin K
Video Edited:
Dustin K
Employee Mary K
Written by:
Mary K
Employee Amanda M
Edited by:
Amanda M
Employee Aidan B
Video by:
Aidan B
Employee Cody B
Updated by:
Cody B
Employee Manda E
Updated by:
Manda E

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