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30A Hardwire Surge Guard

Catalog Item # 69522
This Item is In-Stock and Ready to Ship
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$219.97 SAVE $40.02

Reg $259.99

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This 30 amp Surge Guard product monitors shore power continuously and shuts off when it detects excessive voltage or open neutral conditions that could damage electronic equipment in your coach.
Like its 50 amp partner, the 30 amp hardwire is permanently installed within the bay of your coach, preventing potential theft and damage from the elements. Optional Remote LCD Display conveniently and remotely monitors RV electrical power.


  • Automatic reset on power restoration
  • Automatically shuts off the power when the following is present: Open neutral, Low (<102V) and High (>132V) Voltage, and Multi-mode surge suppression
  • Caution indicator light indicates: Miswired pedestal, Reverse polarity, and Elevated ground voltage
  • 128 second reset delay protects A/C compressor.
  • 2450 Joules of power surge protection.
  • Easy installation
  • Optional Remote Power Monitor LCD Display (Sku 69524)

This item qualifies for Product Protection coverage! Protect Your Investment! Product Protection eliminates out-of-pocket expenses and protects against costly product repairs or replacement. We’ll cover 100% parts and labor for up to two years following the expiration of your manufacturer’s warranty. Warranty service is available at any Camping World SuperCenter.

Technical Specs

Tech Specs

Weight: 4 lbs.


Manufacturer: Technology Research Corp

Mfg Part #: 34520-002

Tech Notes:

Electrical Rating: 120V, 30A

Surge Suppression (Joules): 2,450

Max Spike Current: 6,500A

Over/Under Voltage: Yes

Open Neutral Protection: Yes

Reverse Polarity Protection: Yes

Miswired Pedestal Indication: Yes

Dangerous Current on Ground Wire Indication: Yes

Time delay at power up (128 Sec): Yes

UL Listed: Yes

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30A Hardwire Surge Guard: Customer Reviews

Camper's Choice Rating

(4 Based on 10 Reviews)

Easy installation (1)

Reviewed by 10 customers


Very disappointed

0 out of 0 people found this review helpful.
August 17, 2015
I just purchased this item and found it very easy to install. After turning it on the buzzing noise was god awful loud and annoying. Our camper is 26' and you can't get away from buzzing noise inside. There is no way I'm putting up with that noise. REMOVED AND RETURNING. Do not buy this product. Very disappointed.
Pros: Easy installation
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Works Great!

0 out of 0 people found this review helpful.
September 01, 2014
A great must have unit. Camping World installed and was done very professionally. However, I have to run the generator for the 2 min start delay that comes with this surge protection unit. I would have preferred the install to bypass the generator as all Onan's have their own built in protection. Otherwise, great set-up!
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Installed in a truck camper

0 out of 0 people found this review helpful.
May 16, 2014
Went in easy. Less than a wired model. A slight hum, but I enclosed it.
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Second Time Is A Charm

0 out of 0 people found this review helpful.
May 11, 2014
Received the unit earlier than expected, was packed nicely with good instructions. Unfortunately when I went to install I heard a rattling sound inside the unit. The harder I shook, the louder it rattled. I called CW and the service agent agreed this was not good. She arranged for UPS to pick up the defective unit, no charge, and upon receiving it at CW a replacement was immediately shipped out. Again it arrived earlier than expected so I was able to install in time for our first trip. All is good in the land of Oz! It is a pleasure dealing with CW.
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Nice Piece

0 out of 0 people found this review helpful.
March 18, 2014
Installed the Surge Guard and monitor myself in about 3 hours. Instructions were good and easy to follow. It is nice to look at monitor and be able to determine amp draw at anytime. Works real well to educate wife on why you can only run certain things at one time on 30 AMP. These units are 100 times better built than what I have previously bought and no worries about theft.
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Best way to protect your RV

0 out of 0 people found this review helpful.
February 20, 2014
Works fantastic and the installation at CW Houston was superior and fast. Definitely would recommend the product.
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Peace of mind

0 out of 0 people found this review helpful.
December 23, 2013
I just had this installed by my electrician to limit possible failures and for my families safety. It just made good sense.
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30A Surge Guard #34520

0 out of 0 people found this review helpful.
November 20, 2013
Instructions are clear on how to install and wire. It is large (5.3Wx11.12Lx3.78D) to install inside a travel trailer and it makes a constant humming sound. So be careful about installing inside the sleeping area as sound may be annoying. The manufacturer fails to tell you about this sound drawback.
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30A Surge Guard

0 out of 0 people found this review helpful.
July 19, 2013
Terrific. So far no problems. Only negative is there is not enough description on how to view and interpret the faults.
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30A Hardwire Surge Guard

0 out of 0 people found this review helpful.
July 17, 2013
After reading and hearing some of the bad stories of people losing their fridges and or air conditioners to surges in power or dips I decided to purchase this item. We have an 2003 Keystone fifth wheel and it was a breeze to install and I'm not a licensed electrician either, but by following the instructions it was an easy task. We feel very safe now when we travel to different camp grounds knowing that we are protected. Also after reading about the possibility of the portable surge guards being stolen this was a no brainer.
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Q & A

Product Question & Answer

7 questions : 7 answers
Expand All
Where can I get the optional LCD display?
1 answer(s)
Is this unit CSA approved for shipping to Canada?
1 answer(s)
once installed and powered up, do they make any kind of noise like constant buzzing and how loud?
1 answer(s)
Is there any warranty?
1 answer(s)
Can you run a Honda generator with this in line surge protector?
1 answer(s)
What country was it made in? Are there installation instructions?
1 answer(s)
What are the physical dimensions of this Surge Guard unit?
1 answer(s)

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