Camco RV Power Defender Voltage Protector - 30 Amp

Part Number: CAM55301

84 Reviews | 48 Questions

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$380.30

Retail:$477.40

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camco rv surge protector 30 amp cam55301

camco rv surge protector portable cam55301

camco rv surge protector 30 amp portable

camco rv surge protector power defender voltage - 30 amp

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Feature Breakdown: Camco RV Power Defender Voltage Protector

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This 30-amp voltage protector helps protect your RV from damage caused by low or high voltage and power spikes and surges. It automatically disconnects when dangerous voltage levels are detected and reconnects when voltage levels stabilize. Great Prices for the best rv surge protector from Camco. Camco RV Power Defender Voltage Protector - 30 Amp part number CAM55301 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Camco RV Surge Protector - CAM55301

Features:

Voltage protector protects your RV from excessive voltage and power surges
- Automatically disconnects when dangerous voltage levels are detected
- Reconnects when voltage levels stabilize (between 102V-132V)
Female end connects to your RV's 30-amp power plug
Male end plugs into a 30-amp receptacle
Built-in handles on each end make unplugging the cord effortless
Water-resistant unit protects electrical components
Multilevel surge protection works together with diagnostic lights to visually alert users to faults
Reconnect delay protects sensitive equipment, like air conditioner units, by not rapidly cycling power
- Resets after 140 seconds

Specs:

Overall dimensions: 16" long x 5" wide x 4-1/4" deep
Amps: 30 amps
Voltage: 125
Energy dissipation: 2,800 joules
Warranty: 1 year

55301 Camco Motor Home Power Defender Voltage Protector - 30 Amp

4.9

84 reviews

5 Stars		(75)
4 Stars		(9)
3 Stars		(0)
2 Stars		(0)
1 Star		(0)

by: Diann 03/19/2026

We bought a new one because our 10 year old one started malfunctioning. Now this poor thing traveled for 10 years. This included a trip up the Alcan and back, in the trailer. It worked well. Hopefully the new one will work as well, since we plan on going up and back the Alcan Summer of 2027!

Mike L.

3/20/2026

That sounds like a blast, Diann! Hope you have a great time!!

by: Ric 10/30/2017

etrailer has become my new "GoTo" company for my RV needs. My Camco 30 Amp surge protector was here in two days. and we use it this weekend. It worked as advertised, but that is what you would expect from Camco. The etrailer price was lower than any place else, including other sites.

Ric One Year Later

10/30/2018

Still very pleased with the Camco surge protector. We use it at every site that we stay. We camp at a lot of COE parks, some of which have been around for awhile. Given the age of some of the COE infrastructure, at least we know our electronics and appliances arent going to be fried.

by: Larry 01/25/2019 One Year Later

The Camco RV Power Defender has been great for me. Twice it has saved the electrical system in my motorhome so it has more than paid for itself. Contractors get in a hurry and wire outlets sometimes with reverse polarity, unaware to campsite owners and campers. This can cause a short in your RV and a shock potential when you think appliances are turned off and they still have a live current running through them. I would highly recommend this product .
E-Trailer sells these at an affordable price so there is no reason not to have one to protect your RV from costly repairs.

by: Bill C. 08/18/2019

Great price , no disappointments. This a quality unit. Rather large but after the first time using it got use to it. Works great as advertised. I used a quality bike cable lock to secure this to the RV park post ( for security reasons) this is a investment that I want to protect like my RV and electrical system ,etc. After doing much research about a surge protectors I realized that this would be valuable tool for protection from electronic /electrical problems saving me a ton of money and down time use of my RV. The unit constantly diagnosis the in coming power and has easy to understand led lights. I would highly recommend this product. etrailer prices were great, shipping is as always fast and packaged carefully as with all my purchases from them .

by: Joseph 08/28/2018

Works great and the best price and service. etrailer has great customer service so you always get the right parts.

Joseph One Year Later

8/28/2019

No problems works great

by: R. Taylor 10/15/2017

Writing a great review for etrailer is so easy. Fast delivery. Great products. Fantastic prices. Everything I have purchased has been terrific. I am completely satisfied and I would gladly recommend etrailer to anyone. The camco rv power defender voltage monitor is just what I was looking for.

by: Robert 03/14/2020

We have used this product now for 30 days in over a dozen different state parks and commercial RV parks. It has worked exactly as advertised. There have been no problems with the product.

This product gives us the peace of mind and reassurance that the electrical system, appliances and electronics in our camper are safe and protected from electrical spikes, surges, and out of range voltage variations.

A quality product and valuable insurance.

by: Ronald 10/13/2022 One Year Later

Hasn't failed yet. Only issue is it is bulky to pack. Status lights a real help.

Ronald One Year Later

10/14/2023

Still working as designed. A little clumsy to pack and store but electronically does the job.

Mike L.

11/5/2023

@Ronald Glad to hear the # CAM55301 RV Power Defender is working well for you!

by: Dickydo 06/15/2017

As always etrailer is top notch with great service. Have not had time to use the CAM55301 power defender yet ,but will be using for the next two weeks. Sure it will work fine. THANK ETRAILER YOU ARE ALL THE GREATEST!!!!!!

by: Chancey B 01/05/2017

This thing is HUGE !! Hope the power pole at the camp grounds will hold it. :) Looks like it is a very well made unit. I won"t know until spring when we start camping. Very friendly and fast service. Have bought from these people before and nothing but good to say. Will continue to in the future also. Thanks eTrailer and Ashley.

by: Joanne H 08/19/2017

this was backordered and etrailer did me the favor of expediting delivery just as soon as they received the item because I needed it before departing on a trip with my trailer. THANKS!!! Great customer service!

by: Joe D 06/20/2016

Just got back from my first camping trip. used the surge protector, worked great. Had to figure out how it worked in the beginning to turn it on I had a problem with my camper's outlet kicking off to many things plug in at the same time. Once I iron out the bugs, I had no more problems I would recommend this product Thank you

by: Jim W - Las Vegas 03/13/2019

A power surge can happen anytime and you absolutely need to protect your substantial RV investment with the appropriate rated surge protector. I trust CAMCO products and etrailer is an excellent sourcing partner that I've relied on for years.

by: Philippe P 03/29/2020 One Year Later

Satisfied. Work as advertised.
It is sturdy, well made, dropped it a few times and still works. Used it near freezing temperatures and kept working. It saved me from a bad campground electric setup once. Doesn't require special care or handling, I keep it in my truck bed.

by: Texas guy 08/30/2019 One Year Later

Had another brand that I purchased from [camping retailer]. When it went dead after only 2 years (and only 8 camping trips) I called the manufacturer who said [camping retailer] had sold me a "sitting in the warehouse" old outdated product....which could not be fixed.
Very happy with my new Camco power protector. Will always shop at etrailer first.

by: Tenly 02/16/2023 One Year Later

I have used the surge protector at RV sites and at home. I can be assured my Roadtrek is protected against faulty wiring and power surges. It is easy to use, and ruggedly built.

by: JOEL 08/31/2019 One Year Later

Worth every penny!. Use it every time power is hooked to TV wether at rv park or at home on generator. Works everytime as it should

by: Jeff d 05/08/2019 One Year Later

Possibly too sensitive. I was at a site and it kept resetting, knocking out the Air conditioner in late June in Houston.
Gives good peace of mind and I've used it at every other site since.
It's a sizeable and heavy piece of equipment.

by: Don L. 05/08/2019 One Year Later

I have not had any damage to electronics or anything else since I started using this unit and there has been a few power outages and surges of power off then on again quickly which is usually when the voltage spikes would occur and possibly cause the damage.

by: Bruce 06/15/2018

Received my product yesterday. I'm excited about using it to protect my 5th wheel camper. Ill be going out in a couple of weeks. Great transaction and quick delivery time (3 days.) Thanks George and the rest of your team for providing great products. I truly appreciate you taking care of us budget conscious consumers.

by: Bob A 10/02/2019 One Year Later

Works very well. Has gone through several power service interruptions with no issues.
Glad we researched these for the camper. Even though it costs a bit more than others it certainly is worth it for a one time purchase to protect your investment.

by: David 01/27/2019

Camco Voltage protector worked works good

Found unit at lower price and etrailer Low Price Guarantee worked well
I will be getting all my trailer needs from them if they offer what I need

Thanks

by: Mike C. 01/12/2017

Received item today, service and price was excellent from etrailer, always a good experience.

by: Michael 08/13/2019

I have used the power defender several times. It is easy to install and had given me peace of mind. I highly recommend it

by: Ted 05/25/2021 One Year Later

This item has saved my bacon a couple of times at campsites which had problems with their electric service. It is cheap insurance.

true

Show More Reviews

See what our Experts say about this Camco RV Surge Protector

Do you have a question about this RV Surge Protector?

Does Camco RV Power Defender Circuit Analyzer Reset Itself After a Surge
Camco does make a version of the Camco RV Power Defender Circuit Analyzer Dogbone # CAM55312 that does automatically reset itself with the Voltage Protector part # CAM55301 but the part # CAM55312 will only take one surge before it needs to be replaced. It's like a fuse whereas the Protector is like a breaker in that it resets. I attached a review video for the Protector for you to check out as well.
view full answer...
Hooking Up Surge Protector for 30 Amp Camper to Plug Into 50 Amp Power Source
If your camper is wired for 30 amps I highly recommend using a 30 amp surge protector. The potential issue with using a higher-rated 50 amp surge protector is that it wouldn't be triggered soon enough to protect any appliances you have that are rated for 30 amps. To hook up your 30 amp camper to a 50 amp power source you will want to first connect a 30 amp voltage protector (like the Camco # CAM55301 for a reseting protector or # CAM55312 for a one-time-use protector) to the camper. Then...
view full answer...
Is A Straight Style 30A to a 50A Adapter Better than a Dog Bone Style Adapter?
Hi Brian, great question! The adapter part # A10-5030AVP can plug directly into the 50A receptacle, then plug your 30A surge protector into the adapter, followed by your RV’s power cord. That would work just fine, however I still recommend a dog bone style cord, let me tell you why. The dog bone style is easier to plug in and unplug, especially one with handles. It also put's less stress on our outlet. When you use a straight adapter (like the A10-5030AVP), it sticks straight out from...
view full answer...
Recommended Adapter and Surge Protector for 50 Amp System to 30 Amp Shore Power
With your 50 amp camper system, I recommend using the Power Grip RV Power Maximizer - 50 Amp Female to 15 Amp Male and 30 Amp Male # CAM55025 to allow you to plug into 30 amp power supplies. Then you will use a surge protector like # CAM55306 for multiple surge protection or # CAM55313 for single time surge protection. Many people use the Camco Power Grip Cable with Lock # CAM44290 to protect their investment. Unless you convert your entire system to 30 amp, I don't recommend using a...
view full answer...
How to Connect Surge Protector When Using 30 Amp to 50 Amp RV Adapter Power Cord
You have it exactly right. Starting at the RV you will plug in your 30A power cord like # A10-3025ED90 which will connect to the 30A surge protector, such as the Camco # CAM55312 or the multilevel # CAM55301. Then from the surge protector you will use your adapter like # A10-5030FHVP to plug into the 50 amp shore power outlet.
view full answer...
Blue Light On Camco RV Power Defender CAM55312 No Longer Illuminating
I spoke with my contact at Camco regarding your RV Power Defender Circuit Analyzer # CAM55312. He said that if the blue surge protector light is no longer illuminating on your unit then it has experienced a surge episode (and protected your RV!). This may have happened with your 30 amp home outlet or it could have happened the previous time you used the analyzer at a campsite. Since this particular model provides one-time-event protection, it is no longer able to provide surge protection...
view full answer...
Comparing Camco RV Circuit Analyzer and Voltage Protector for 30 Amp Service
In simplest terms, the Camco RV Power Defender Circuit Analyzer part # CAM55310 acts as a fuse and the Camco RV Power Defender Voltage Protector part # CAM55301 acts as an auto-resetting circuit breaker. Therefore, if the fuse blows it will need to be replaced but if the circuit breaker trips it will go back to functioning as normal once the fault is corrected.
view full answer...
Which 30 Amp Camco Surge Protector will Reset Itself After Triggering
The Camco RV Power Defender, part # CAM55312 can only withstand a single surge. It cannot reset its surge protector once its used, and will need to be replaced. There is a version that will reset itself though and for that part number you'd want # CAM55301.
view full answer...
Recommended RV Surge Protector Voltage Regulator for 30 Amp Power System
For any trailer or motorhome system, I recommend using a surge protector to protect your trailer electronics and components from issue. For your 30 amp system I recommend at least the Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 30 Amp # CAM55312 which will protect from a single surge has indicator lights of faults. This will require replacing after a surge and will not allow you to safely reconnect your system after a fault so you would be taking a risk if you reconnect....
view full answer...
Differences Between Camco Circuit Analyzers and Power Defenders
You are correct. The 30 Camco RV Power Defender Voltage Protector # CAM55301 is like a circuit breaker and automatically resets if there's a surge whereas the 50 amp Circuit Analyzer part # CAM55313 is like a fuse and it only can handle one surge. For a 50 amp breaker style you'd need the part # CAM55306.
view full answer...
Joules of Surge Protection for the Camco Voltage Defender
I spoke to my contact at Camco and he informed me that the Camco RV Power Defender Voltage Analyzer # CAM55310 that you referenced offers 1,050 joules of surge protection but it's primary function is to determine if a power outlet/pedestal is wired correctly. For more voltage protection you may be more interested in the # CAM55301 that offers 2,450 joules of protection or the part # CAM55306 that provides 3,850 joules of protection. Review videos for all three products are attached.
view full answer...
Comparison of Camco Circuit Analyzers and Voltage Protectors
Camco Power Defender voltage protectors, parts # CAM55301 and # CAM55306, have a bit more protection than the circuit analyzers, parts # CAM55310, # CAM55312, and # CAM55313. Both the analyzers and protectors have diagnostic lights for faults but beyond that the analyzers are just surge protectors. The voltage protectors go a little further by detecting the voltage and shutting off if the voltage level falls below 102V or goes over 132V. The voltage protectors also reset themselves...
view full answer...
Is it Normal for 30 amp Camco RV Power Defender Voltage Protector to Not Work With 50 amp Service
The Camco RV Power Defender Voltage Protector # CAM55301 that you referenced automatically disconnects when it senses that the voltage levels are at a dangerous point. Since it automatically reconnects when the voltage levels stabilize (between 102V - 132V) I am wondering if the service that you are hooking up to is too much for the adapter. This would explain why it isn't working. I would try testing the 50 amp service to make sure that it is outputting power and if it is you can then...
view full answer...
How To Use a Surge Protector When Hooking Up a 30 Amp Camper To a 50 Amp Service
It sounds like you are wanting to use a surge protector when hooking up your 30 amp trailer to a 50 amp service. If that is the case then this can be done but you would want to use a 30 amp surge protector. I recommend using the Camco RV Power Defender Voltage Protector part # CAM55301 with the Power Grip RV Power Cord Adapter part # CAM55175. The camper pulls power from the shore outlet, not the other way around. The camper would never pull more than 30 amps unless there was an issue...
view full answer...
30 Amp Trailer Compatibility with 50 Amp Extension Cord
You can still use your 50 amp extension cord to the outlet and just use an adapter like the Mighty Cord RV Power Cord Adapter Plug - 30 Amp Female to 50 Amp Male - Round # A10-5030AVP. You will still need a 30 amp cable like the Mighty Cord RV Power Cord with Handle - 30 Amp Male to Twist Lock Female Connector - 25' Long # A10-3025ED90 or if you have the retractable hardwired cable then you just use the adapter to utilize your extension cord. You may want to consider the a circuit defender...
view full answer...
Can 50 Amp Surge Protector Be Used with 30 Amp Power Supply
You can use a 50 amp surge protector on your 30 amp service but I would offer a bit of caution. If any of your appliances or items are rated at 30 amps and something happened that caused them to draw more power, the 50 amp surge protector would not trigger and you could suffer damage to those items. If you decide to use the 50 amp surge protector I recommend making sure everything is in good working order, but as I stated, if there were a problem it may cause damage because the circuit...
view full answer...
Can 30 Amp Surge Protector be Used on 50 Amp RV
A 30 amp surge protector can be used on a 50 amp RV but if you exceed 30 amps the surge protector is going to activate and prevent more than 30 amps from making it to the rest of the electrical system. So it would "work" but not be ideal Best solution would be a 50 amp surge protector like the part # CAM55301.
view full answer...
Does 50 Amp RV Need to Have 30 Amp Surge Protection Using 30 Amp Power
If you power your 50 amp service RV with 30 amp power you'll be fine as long as you are aware that your amperage is not lower than normal which means you won't be able to run as many electricity power accessories at any given time. The surge protector is for protecting the wiring of your RV though so there's no reason you'd have to go down to a 30 amp protector. Your RV can handle up to 50 amps so there's nothing that's going to harm it between 30 and 50.
view full answer...
Surge Protection Recommendation for When Operating RV on 30 Amp Power Source
What you'd want is a 30 amp surge protector like part # CAM55301 when you are using your setup on a 30 amp power source. You'd just need to plug this in line with your 30 amp wiring.
view full answer...
Recommended Surge Protector for a 2019 Winnebago Minnie Winnie Plus
Yes, the Camco RV Power Defender Voltage Protector part # CAM55301 is compatible with a 2019 Winnebago Minnie Winnie Plus. I spoke with Camco and they stated the Camco RV Power Defender Voltage Protector is not UL Certified but is CSA Certified.
view full answer...
Can the Camco RV Power Defender Voltage Protector be Used When Converting 50 Amps to 30 Amps
I do have options for you but a voltage protector like the Camco RV Power Defender Voltage Protector part # CAM55301 cannot be used when converting from 50 amps to 30 amps. Instead, you would just need to use a standard extension power cord with dogbone adapter. For this I recommend the Mighty Cord RV Power Cord Adapter part # A10-3050EHD which is 25' long. If you already have a 50 amp power cord that goes from the inlet on the RV to the outlet at the RV park you can just use the Mighty...
view full answer...
Can RV with 50 Amp Power Hook Up to 30 Amp Power Source
You can indeed connect your RV with 50 amp power to a 30 amp power source. To do this you can use an adapter like the Mighty Cord Generator Adapter # A10-G30450VP which is just a 50 amp female socket on one end and a 30 amp female connector on the other. As you mentioned, plugging into a 30 amp service is going to limit how many appliances you can have running at one time in the RV. As long as you are okay with this then you can physically hook up to the power source without issue. Technically...
view full answer...
Can RV with 50 Amp Socket use 30 Amp Service at Campground
Yes, you can use your RV that has a 50 amp outlet with a 30 amp power source by using the dog bone adapter like the part # A10-3050FHVP. You'd just have to make a note that you have a lower amount of amperage available for your accessories. The # CAM55301 that you referenced can be used and will help prevent you from drawing more than 30 amps.
view full answer...
Recommended Surge Protector for 30 Amp Trailer
For your 30 Amp trailer you will want the Camco RV Power Defender Voltage Monitor - 30 Amp # CAM55301. This will monitor voltage and automatically disconnect when dangerous levels are detected and then reconnect when voltage stabilizes. This is a great option to allow protection from multiple surges. You may want to consider the Camco Power Grip Cable with Lock # CAM44290 to secure your investment. If you were to use a 50 amp unit, then there could be spikes that could damage your...
view full answer...

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