Best RV Surge Protectors of 2020 – 30 Amp or 50 Amp Power Protection

| Last Updated: March 8, 2021

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Surge protectors are an essential part to any RV. While traveling, these ensure your hookup is safe and without future complications.

In this review, we’re going to take a look at some of the top models and explain why they stand out. With this, we’ll be discussing a few pros and cons for each model, in addition to their main features.

If you’re new to the RV lifestyle, rest assured we’ll provide some basic information related to surge protectors and whether or not they are necessary. If you’ve had some questions, you certainly won’t want to skip this article.

Our Top Picks for Best RV Surge Protectors

  • Identifies faulty park power
  • Can analyze circuits
  • Provides surge protection
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  • Surge suppression
  • Rugged pull handle
  • Total surge protection
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  • No installation
  • Auto power shut off
  • 3 surge protection modes
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Comparison of the Best RV Surge Protectors

  • Identifies faulty park power thus protecting your electronics
  • Has the ability to analyze circuits which helps in verifying any pedestal power
  • Able to provide surge protection of up to 4,200 joules which makes it the best overall product
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  • Provides surge suppression of up to 1,650 joules
  • Rugged pull handle makes it easy to plug it into shore power
  • Complete surge protection at an economical price makes this unit best for the money
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  • Requires no installation; 30 amp cord plugs directly to the box
  • EMS automatically turns off the power in case of low or high voltage
  • Three modes of surge protection make it one of the best 30 amp surge protector
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  • Plug-and-play replacement parts make repairs quick and easy
  • Multi-mode surge protection makes it the best 50 amp surge protector
  • Computer inside this portable unit is designed with state-of-the-art microprocessors
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  • Ability to present error code readings saves time
  • Protection against multiple power problems provides peace of mind
  • Digital display conveniently identifies readings such as frequency, AC power information, etc.
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  • Able to identify faulty power within seconds
  • Surge suppression rating of up to up to 2,100 joules
  • Reduces the risk of damage to your RV’s electrical components
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  • Weather-resistant unit protects electrical appliances in all weathers
  • Prior to your electrical cord connection, diagnostic lights will indicate faults
  • Circuit analyzers protect your RV from improperly wired electrical boxes and power surges
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  • Warranty: lifetime
  • Thermally protected
  • Rated for: 50 A / 240V/120V / 12,000 W
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  • Best Portable Surge Protector for RV
  • Built-in analyzer capable of reading a variety of circuit related problems
  • Weather resistant with included rain cover
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  • Made with an extensive power diagnostic system that can read a variety of faults
  • Provides immediate wireless warnings to your mobile if problems occur
  • Built-in power delay provides safety for sensitive equipment
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What is a Surge Protector?

If you’ve ever asked, "What’s a surge protector?" - there’s no need to feel out of the loop. A surge protector is a device designed to protect your RV from sudden electrical surges, and low or high, unexpected spikes of voltage.

While the chances of this happening are often slim, investing in one of these is a necessary consideration that will save you hundreds, if not thousands, should anything go wrong. Simply put, these are an insurance policy and wise one-time purchase.  

Do I Need an RV Surge Protector?

Yes. There’s no ifs, ands, or buts when it comes to purchasing one of these. Just as you wouldn’t skip out on RV insurance, you shouldn’t skip out on buying one.

What to Look For in a Surge Protector

There are several things you should keep in mind when shopping. These include:

RV Electricity Supply

The most important thing is to make sure it is compatible with the electricity supply of your RV. There are two standard power supplies– 30-amp and 50-amp. Both of these come with a different plug, therefore, make sure you get the right one.

Diagnostic Abilities

A basic model will shut down in case of a power surge. However, the latest and most innovative models can be used as diagnostic tools for power supplies. If you like to try out new campgrounds constantly, you should invest in a model that indicates whether the pedestal has been properly set up.

LED Display

Another important feature is the LED display. It serves as a caution or indicator in case of irregularities in the power supply. It is best to choose one that has a bright LCD display and is easy to read.

Portable or Hardwired

There are portable or hardwired. Portable models are lightweight, and easy to carry around. Moreover, the installation of such units is easy. On the other hand, hardwired units require professional help for installation, but it is easier to keep an eye on them once they are installed.

Types of Surge Protectors

Below are some of the main types:

Basic Surge Protectors

As the name presents, a basic model is a very straightforward model to get the job done. Their user-friendly design is intended to protect your RV from low or high spikes of voltage so your circuitry isn’t suddenly fried. The reasons for these occurrences can be the result of unstable surges at RV parks or forces of nature such as lightning strikes.

Complete Surge Protectors

While basic units are a safe, general model, complete surge protectors are well-known for being a top-of-the-line investments.

Despite their higher price tag, these models are worth the cost since they typically pay for themselves in the long-run, providing peace of mind should problems arise. As with basic protectors, complete models defend against low and high voltage, as well as high and low line frequency, open ground, and faulty wiring.

When it comes down to it, we can’t encourage you enough to buy one of these. Just be sure to keep in mind your lifestyle and needs to determine which type is best.

Quick Take - The Best RV Surge Protectors

Before you go any further, here are best RV surge protectors: 

  1. Surge Guard 44270 - 50-Amp
  2. Progressive Industries SSP30X
  3. Progressive Industries SSP-30XL

Review of the Best RV Surge Protectors

Now we’re going to switch gears and focus on the best RV surge protectors. As mentioned, we’ll be reviewing each product’s main features, then diving into a handful of pros and cons, as noted per recent buyers.

Surge Guard 44270 Entry Level Portable Surge Protector - 50 Amp


  • Portable and Easy to Use Product
  • Includes Indicators That Show Power Status
  • Shows Active Protection With a Visual Indicator
  • Detects Open Ground, Open Neutral, and Polarity Issues
  • Weather-Resistant Which Allows it to Work Even in Severe Weather Conditions


  • Absence of a Lock Could Be a Problem
  • Must Be Plugged in Any Time You Are at a New Campsite

What Recent Buyers Report

The majority of buyers are satisfied with this product. They find the Surge Guard 44270 a high-performing product at amazing prices. Another great feature appreciated by many users is its ability to save the electrical system in all kinds of weather, including rain, snow, high temperatures, and even in thunderstorms.

Why it Stands Out to Us

The 44270 is a highly portable product making it one of the best products available. It features protection of up to 4,200 joules. This is particularly helpful as the power supply in a campground is not always steady. You can have a power surge in the form of lightning, have an incorrectly wired power pedestal, or suffer major damage from low voltage.

Who Will Use This Most

This product is particularly helpful to RV owners, as it can protect their expensive electronic equipment from damage. Its ability to detect faulty park power and analyze circuits has saved many campers from serious loss. Without this product, you may lose your television, computer, refrigerator, converter, batteries, propane detector, water pump, or anything else connected to your rig with the help of wires.

What Could Be Improved and Why

One thing we find inconvenient about this product is the absence of lock, which makes this unit prone to being stolen. Moreover, every time you go into a campground, you will have to plug it in, which could be a bother.

Bottom Line

If you are an RV owner with expensive electronics, it is important to safeguard your appliances from significant damage due to inconsistent power at campgrounds. This product is perfect for such users as it not only offers surge protection, it analyzes circuits to verify pedestal power and identifies faulty park power as well.

Best for the Money:
Progressive Industries SSP30X

Progressive Industries 30 Amp Portable RV Smart Surge Protector (1 MIN), SSP-30X


  • Surge Failure Warning Protects Your RV
  • Thermally Protected, Which Increases its Durability
  • Lifetime Warranty Ensures That it is a Good Quality Product
  • Bright 3-Color LED Indicators to Make it Easy to Spot Any Issues
  • Built-In Polarity Tester Checks the Power Source Status Prior to Use
  • Reverse Polarity, Open Ground, and Open Neutral Detection Within Seconds


  • Claiming Lifetime Warranty is Difficult
  • Absence of LCD Display Makes This Unit Slightly Inconvenient

What Recent Buyers Report

This product comes highly recommended. Many users have attested to its high performance and ease of use. When you plug it in, it analyzes the circuit, and if everything is all right, it will turn itself on, thus allowing the power to go to your RV. This feature is very appreciated by users, as it protects your RV from any problem or spike in power.

Why it Stands Out to Us

Well-designed and easy to use, the SSP30X from Progressive Industries helps to protect your investment. It is highly portable and does not require any installation. It also features an in-built polarity tester that checks the power source status before use. This surge protector has a failure indicator and is thermally protected for longevity. The LED display has three indicators, which are bright and colored. This is particularly helpful as you can easily spot any discrepancies with the power supply. The price is also affordable for those on a budget. 

Who Will Use This Most

The compact and sleek design of this unit makes it perfect for outdoor use. Moreover, it does not require any installation. Therefore, you can easily take it camping with you. It is thermally protected, thus making it suitable for various campgrounds.

What Could be Improved and Why

An LCD display helps to monitor amp and volts. We feel that the inclusion of an LCD could greatly enhance customer convenience in this product.

Bottom Line

The SSP30X from Progressive Industries is an excellent RV surge protector which is designed with an added benefit of a built-in polarity tester. Moreover, if there is a problem such as a bad wiring or a spike, it shuts itself down, thus safeguarding your RV.

Best 30-Amp Surge Protector:
Progressive Industries SSP-30XL


  • Affordably Priced
  • Robust and Very Durable
  • Directions are Straightforward and Easy to Follow
  • Excellent Customer Service from Progressive Industries


  • Plastic Cover May Have Difficulty Closing All the Way if Your Power Plug Has a Little Handle on it

Progressive Industries is a-well recognized manufacturer among RV electrical components and has delivered the 30 amp, 313.1163 SSP-30XL for those in need. Complete with a cover, this model is safeguarded to manage temperatures ranging from -40C to 105C and is weather-resistant for harsh conditions.

This is a 120V, plug and play model, that features LED lights and comes with a lifetime warranty. As a basic model, it performs well and offers failure and miswired indicators, along with open ground and neutral and reverse polarity detection.

On top of being very functional, this product is sleek and compact, thus minimizing space when the time comes to pack up. Simply remove the protector from the plug in and you’re ready to hit the road. Keep in mind, if you’re looking for something a little heftier, Progressive Industries offers a wide assortment.

Bottom Line

When it comes down to it, the bottom line with Progressive Industries’ SSP-30XL is that this is the ideal model for RV-ers of all experience levels. It’s ease of use and versatility ensures your RV's safety while traveling and it’s reasonably priced, making for a well-rounded model. As noted, if you’re on the hunt for a Progressive Industries model that’s not the SSP-30XL, be sure to continue onto Amazon from here to view more options.

Progressive Industries HW50C Hardwired EMS Surge & Electrical Protection- 50 Amps


  • Long Cable Easily Attaches to Your RV
  • Certified Product is Easy to Install
  • Great Technical Support Offered By the Manufacturer
  • Surge Failure and Miswired Pedestal Indication
  • Accidental 240V Protection and A/C Frequency Protection
  • Detailed Instruction Manual Makes Installation Very Simple
  • Remote Scrolling Digital Display Continuously Scrolls Through the Power Source Information


  • May Make a Humming Sound That is Not Appreciated By Customers

What Recent Buyers Report

There are many features of this product that users find attractive. It protects the RV from surges from shore or the generator without any issue. It is hardwired, therefore, you can leave it at the campsite without worrying about it being stolen. It also boasts an external display that helps monitor amp draw, voltage, and hertz.

Why it Stands Out to Us

The HW50C from Progressive industries is very easy to install. The manual is very detailed and provides explicit instructions regarding use with both the external source and the generator. Even after long hours of use, there are usually no issues. Besides, this product comes with codes that help you troubleshoot in case of an error.

Who Will Use This Most

This unit is particularly helpful for people who travel a lot and like to visit various campgrounds. Users can keep the remote display with them to monitor electrical appliances and devices, thus ensuring there is no overload. This feature is particularly handy for people who need to keep a close eye on voltage and amp draw.

What Could be Improved and Why

The unit makes a humming sound when it is plugged in. Therefore, it is not suitable for installation near the master bedroom. However, by addressing this issue, the manufacturer can greatly enhance its performance.

Bottom Line

The HW50C is a top-of-the-line product that protects all the electrical appliances in your RV from power drops and surges. It keeps the users informed about how much amperage they are using at all times. Although it is a bit expensive, it provides users with complete peace of mind. Moreover, this product also enjoys great technical support from the manufacturer.

Portable RV Surge Protector Portable EMS-PT30X RV Surge Protector , Black


  • Built-In Locking Bracket Reduces the Chances of Theft
  • Extremely Rugged and Able to Withstand Tough Wear and Tear
  • Straightforward Use Makes it Suitable for All Experience Levels
  • Lightweight, Thus Making it Easy to Transport From One Place to Another
  • Lifetime Warranty Shows the Confidence of the Manufacturer in its Product
  • Weather Shield and Protective Outer Shell Allows it to Work in Harsh Environments


  • Is a Bit Expensive Compared to Other 30-Amp Models

What Recent Buyers Report

Buyers loved the fact that this product works as advertised. They find this product confirms whether the circuit is working properly or not before allowing power flow. Moreover, it displays the amps being consumed, thus letting you know if the limits are surpassed. Recent buyers have reported that it works perfectly even in harsh weather conditions. They are satisfied with its performance as it provides unfailing protection to their RV and electrical appliances.

Why it Stands Out to Us

The EMS-PT30X from Progressive Industries is one of the toughest products available that is capable of protecting your RV against incorrect wiring and fluctuating voltages. Its durable housing allows this product to function efficiently in almost all weather conditions. We also appreciate the security locking bracket, which keeps the product safe and close to the power source. The tough Lexan shell protects this unit from bumps and knocks.

Who Will Use This Most

This product is designed for people who travel in their RV the whole year-round. This weather-resistant product will not let you down in any weather condition. Moreover, when you travel to various campsites, you might experience unexpected surges at parks. This high or low spike could cause damage to your fans, air conditioners, and other electrical appliances. By investing in the EMS-PT30X, you can continue your camping journey, knowing that your valuables are safe from any mishap.

What Could be Improved and Why

This is a sound insurance policy. This innovative product is designed by a well-known company that stands behind its products and strives to exceed the expectations of its customers. Although this product is a little expensive than other products available, the peace of mind that it provides its users is priceless.

Bottom Line

If you want a model that provides maximum electrical protection, then the EMS-PT30X is the product for you. It is difficult to find a product that offers complete EMS protection against multiple power supply issues better than this unit.

Surge Guard 44260 Entry Level Portable Surge Protector - 30 Amp


  • Works Efficiently in All Weather Conditions
  • Pull-Out Handle Makes Unplugging Very Easy
  • Indicator Alerts to Any Problems With the Power Supply
  • Tests For and Indicates, Correct Polarity, Open Ground, and Open Neutral
  • Circuit Analyzer Verifies Pedestal Power to Protect Against Faulty Electrical Supplies


  • The Lights on This Product are Hard to see in Sunlight

What Recent Buyers Report

Buyers are pleased with this product as it is a durable item that performs efficiently. They love its weather-resistant feature as it does not fail in dry or rainy weather. It analyzes the polarity and protects against surges, thus protecting their electrical appliances. They feel that it is a must for RV-ers as it checks the campsite power, eliminates surges, and alerts the user if the power is not correct before hooking up.

Why it Stands Out to Us

Ineffective power at RV campsites can ruin expensive electronics, but with this innovative product, you can prevent this damage. This highly portable product identifies ineffective power and analyzes circuits to verify pedestal power. Its Easy T-Pull plug handles are a convenient feature that we find simplifies its use.

Who Will Use This Most

This product is a must for people who want to protect their investment. Most RV-ers do not mind spending a little extra if it ensures their RV against surges. However, this product provides good value for value. Moreover, this unit is not bulky, which is why people who go on frequent trips in their RV can easily store it on-board.

What Could be Improved and Why

The indicator on this product illuminates to show the power status. However, users have reported that the lights are hard to see in the sunlight, thus making it difficult to make out the readings. Bright lights would better illuminate the indicator and make it easy to find out the power status.

Bottom Line

Inconsistent power supplies at RV campsites could cause significant damage. With the Surge Guard 30-Amp, you can minimize potential conditions that could cause irrevocable damage to your electronic equipment.


  • Very Affordable
  • Durable Solid Exterior
  • Features Contoured Grip
  • Helpful for Detecting Reverse Polarity
  • Compact and User-Friendly for All Experience Levels


  • Lights Can Be Difficult to See in the Daylight
  • Some Have Reported That it Has Burned Up When Put to the Test Against Storms
  • Does Not Come With Fancy Bells and Whistles as With Other Models

This innovative, 30-amp surge protector is another top pick of ours and the perfect addition for your next camping trip. The Camco Power Defender is backed by a one-year warranty and features a voltage monitor to protect against random changes in electrical current.

One of the major features to this model is the fact that it holds up well against extreme weather conditions and is designed to work with your lifestyle. For those moments when you’re managing hookups in the dark, this surge protector comes with built-in lights to indicate a variety of faults and keep you up to date on what matters most.

On top of everything, this model is sleek and compact, making for easy travel and storage. It’s affordably priced and has been well-recognized by many who have used it firsthand.

Bottom Line

From those who’ve used the 30-Amp Camco Power Defender, nearly all report that this is a reliable, well-built surge protector and performs exactly as intended. While there may not be any high-end features, such as with some of the other models on our list, most users note that in regards to its price and functionality, this surge protector is excellent.


  • Made in the USA
  • Replacement Parts are Easy to Install Since They’re All Plug-and-Play
  • Operated Via a Microprocessor to Keep your RV Safe from Electrical Spikes and Surges


  • Bulkier Than Other, Smaller Models
  • Learning Curves Vary With Installation

The last model on our list is the Progressive Industries EMS-LCHW50. This hardwired RV surge and electrical protector is a complete unit that has been recognized by many for being a step up for those RVs with larger power demands.

This unit is UL certified and also comes with a lifetime warranty. With this, users protected against open neutral and reverse polarity, open ground, and under or over voltage occurrences.

Additionally, this particular model comes with a digital display that circulates through a variety of information so you’re in the loop as to what’s going on with your RV. On the display, users can expect to see feeds related to current, frequency, varying voltages, and error codes should any arise.

Bottom Line

The bottom line with Progressive Industries EMS-LCHW50 is that making the decision to go towards a complete, hardwired model may be a wise move for some. For campers seeking out a one-and-done solution, this is your go-to model. This unit features all the bells and whistles and is sure to protect against random surges that could severely damage your RV or personal electronics.

Best Portable Surge Protector for RV:
Surge Guard 44280

Surge Guard 44280 Portable Surge Protector - 120V, 30A,Black


  • A lightweight option
  • Features unambiguous functions
  • Offers amazing element resistance
  • Comes with a rain-proof cover to provide durability and weather resistance


  • Does not offer added security features 

What Recent Buyers Report

According to most Surge Guard users, this RV surge protector is an easy-to-install and easy-to-use unit. It makes sure to test the pedestal before it passes the power over to the RV, thus providing full protection from any potential electrical damage. This surge sacrifices itself to provide the RV with protection and is worth having one when you’re setting up the camp. 

Why it Stands Out to Us

This surge protector is a lightweight option, which makes it very easy to use. Apart from being lightweight, it also features a weather-resistant housing and a rain-proof cover that increases its durability. You can leave it outside in the bad weather without having to worry about it getting damaged. 

Moreover, the Surge Guard 44280 can be used to monitor a variety of electrical problems. It comes with indicator lights that let you know in case of an open-ground, an open neutral, a reverse polarity, reverse ground, and an open circuit, etc. This surge protector analyzes the quality of the power supply constantly, which allows it to identify any potential issue before it causes any serious damage. 

Bottom Line

Overall, the Surge Guard 44280 is a great surge protector that you should check out if you’re in search of one that offers you both quality and is affordable. It is a portable option designed for 30 amp connections. You can easily install and use it without having to scale it before you take your RV out on the road again. 

HUGHES AUTO Autoformers PWD30-EPO-H Power Watchdog Smart Bluetooth Surge Protector Plus EPO with Auto Shutoff - 30 Amp Hardwire Version


  • Offers 2,400 Joules of advance surge protection
  • Four-second power delay after it has been plugged in
  • Has a smart circuit analyzer that is connected to your smartphone
  • Features a built-in 90-second power-on delay to protect your AC unit after a fault
  • Provides complete LED park power diagnostics along with all the wireless fault alerts


  • Does not feature weatherproof connections

What Recent Buyers Report

Most RV users love this particular Hughes model because it is very easy to use. You can connect it to your smartphone, which allows you to stay updated regarding the power conditions. You get a comprehensive analysis of your RV’s power system, making sure to prevent any sort of electrical damage. You can use the app and find out how much power you are consuming, what your RV needs, etc., and it keeps you updated in real-time. 

Why it Stands Out to Us

The Hughes Autoformers PWD30-EPO is a 30-amp surge protector that offers 2400 Joules of advanced surge protection for your RV. This surge protector features built-in Bluetooth connectivity that allows you to monitor the power conditions on your smartphone, that too, in real-time. You will receive text alerts of any potential dangers to help prevent any catastrophe from happening. 

And in case the conditions are too dangerous, the EPO feature automatically shuts down the unit. Once the conditions are stable, the unit will automatically turn back on. 

Bottom Line

Keeping all this in mind, it can be said that this Hughes model is one of the best smart surge protectors available in the market. It provides you protection from all potential electrical dangers. It makes sure to keep your RV and its appliances safe and secure by turning off the power if the conditions get dangerous. Moreover, it keeps you updated with alerts regarding your smartphone's conditions, making the whole procedure effective and a lot more secure. 

Surge Guard 34830 Portable Model with LCD Display - 30 Amp


  • Portable and Easy to Move Around
  • Compact in Design and Easy to Use
  • Power Surge Suppression of Up to 2,450 Joules
  • Protects Your Investments From Faulty Park Power
  • Built-in Intelligence Promotes Ease of Use and Operation
  • English LCD Display Makes it Easy to Monitor the Readings
  • Automatic Reset Function Instantly Works on Power Restoration
  • Continuously Monitors for Amp Draw, Voltage, and Reverse Polarity


  • Display Light is Prone to Damage Over Time

What Recent Buyers Report

Satisfied buyers can’t stop singing the praises of this product. They particularly love the feature which enables them to get amperage and voltage readouts. It tells them the total amount of electricity they are drawing, while protecting their unit from campground electrical supply problems. Moreover, its overheat protection feature shuts it down temporarily, thus saving from over/under voltage, overheat, and surges.

Why it Stands Out to Us

When you are camping, you do not want any harm to come to your electronic equipment and appliances. This product provides protection to your television, microwave oven, oven toaster, refrigerator, computer, air conditioner, etc. It provides peace of mind to users that their appliances will not be damaged due to faulty park power, as this is a common problem across RV campgrounds and parks.

Who Will Use This Most

This product is specifically designed for all travel trailers, motorhomes, and 5th wheels with 30-amp service. It saves RV owners from having any issues with the electricity supply at campgrounds. They can go for sightseeing without worrying about something going wrong with the power at the campsite.

What Could be Improved and Why

We find that the display light on this unit is not very durable. Although this is not a major issue, fixing this would be a great convenience for the users.

Bottom Line

This portable unit is designed with built-in intelligent features that promote ease of operation and use. Even first-timers will have no trouble operating it. It is a reliable product that is big on performance and functions. This is not a product to miss when you are looking for a good portable RV surge protector that protects your rig against faulty connections and power surge.

Surge Guard 34850 Portable Model with LCD Display - 50 Amp


  • Portable,Lightweight, and Easy to Use
  • Able to Work Efficiently in All Weather
  • Protects Your RV From Faulty Park Power
  • Automatically Resets Once Power is Restored
  • Lifetime Warranty Provides Users With Peace of Mind
  • Compact Design With Convenient Plug Disconnect Handles
  • Continuously Monitors for Reverse Polarity, Surge Failure, Voltage and Amp Draw


  • Does Not Include a Surge Failure Indicator

What Recent Buyers Report

This amazing product provides buyers with complete protection against the common over and under-voltage, which is common in RV parks. They are particularly happy with its power-on time delay feature, which prevents heavy loads from cycling on and off in the case of power flickers. The LCD display shows line voltage for both current draw and phases, thus allowing users to keep an eye on their power consumption. Many buyers find this feature very useful as they can operate their appliances accordingly.

Why it Stands Out to Us

We particularly like this product as it protects RV-ers from severe electrical damage, which could result from faulty park power. It shuts down automatically when a low and high voltage or open neutral is present. Moreover, once the power problem is resolved, it will automatically reset. Another great feature is the 128-second delay prior to reconnecting the power as it provides additional protection to the electrical appliances on the RV.

Who Will Use This Most

This product is ideal for people who want to relax and enjoy their vacation, knowing that their electrical appliances are safe from any unforeseeable power problems. The digital readout also helps users keep an eye on how much each 120V circuit is pulling at any given time.

What Could be Improved and Why

Although this product has many invaluable features, it does not have a lock, which could cause an inconvenience. You have to buy a separate lock to keep it from being stolen. Also, it does not have a surge failure indicator, which could cause inconvenience for users.

Bottom Line

A highly versatile and durable unit, the Surge Guard 34850 is best for recreational vehicles, motorhomes, and travel trailers that make use of 50A service. The display continuously monitors and reveals power faults, thus making it an essential accessory for RV owners.


  • Reasonably-Priced
  • Grips Make Plugging and Unplugging the Unit Safer
  • Clear Reporting of Polarity Ensures Users Know If/When to Adjust Circuitry
  • Provides Peace of Mind When Camping at Questionable Parks or During Sudden Storms


  • Model is Not as Sleek and Compact as Other Models
  • Bright Yellow Color Stands Out - Many Recommend Securing it to Something to Protect Against Theft

As a leader among the circuitry industry, Camco continues to deliver excellent products at an affordable price. The 50-Amp Camco Dogbone RV Circuit Analyzer does just that and ensures your RV is fully protected whilst hooking up to parks and pushing through severe storms.

This dogbone model features power handle grips and is rated to protect up to 4,200 joules. Built into the unit are diagnostic lights to indicate faults and keep you well informed of any mishaps you may encounter. With this, the unit is designed to be weather-resistant and take on a variety of harsh environments.

The model we’re highlighting is the 50-amp unit, but keep in mind that Camco also offers a 30-amp unit. Just take a look at some of the ups and downs encountered by those who’ve used this surge protector firsthand.

Bottom Line

The bottom line with the 50-Amp Camco Dogbone RV Circuit Analyzer is that aside from its bulky design and bright yellow appearance, this surge protector works as it’s intended to and is a simple solution to protect RV electronics.

RV Surge Protector Pros and Cons 

If you’re planning on spending time on the road in your RV a lot, then you must equip yourself with a surge protector. However, if you’ve never used one before, then you might be curious about how it’ll benefit you. Here are some pros and cons of using these surge protectors for your RV. 


Firstly, let's start with the pros. 

Ensures Safety 

A surge protector helps promote safety while you’re on the road. You don't have to worry about possible electrical damage caused by shocks and fire hazards in the RV as it deals with different power issues and helps ensure maximum safety.  

Faulty Power Outlets

With pedestal power outlets, you can never determine which one is faulty and which one is safe to use. However, with a surge guard, you can easily find out as it immediately alerts you if you’re trying to hook the RV to an unregulated or broken outlet. 

Regulating Power Flow 

A surge protector helps regulate the electrical power flow. This way, only a certain amount of power reaches your RV appliances, ensuring that they operate effectively and don’t suffer from any damage due to unwanted voltage flow.


The biggest advantage is that a surge protector acts as insurance for your investment. It is an affordable piece of equipment that can save you from serious damage. 


Now let’s talk about some cons of using a surge protector. 

Short Lifespan 

The only con is that these surge protectors don't last you a long time. They have a limited lifespan as they absorb all the unsafe voltage while protecting your RV and its appliances from spikes and surges. And soon, they end up sacrificing themselves in order to prevent serious electrical damage. 

Comparison Overview 

If you own an RV, you might have heard of the terms EMS and surge protectors; however, you might be confused about the two devices and the main difference between them. Well, here is a comparison between the two to make things easier for you to understand. 

RV EMS vs. Surge Protector

There isn’t much difference between the two. An EMS is an electrical management system designed to protect your RV from various electrical issues that could cause severe damage. 

On the other hand, surge protectors, more commonly referred to as power strips, help protect your electronics from severe voltage spikes caused by a lightning strike or due to a blown transformer. 

Dealing With Different Number of Problems

The main difference between an RV EMS and a surge protector is that the former deals with a number of electrical power problems, whereas the latter helps provide protection mainly from large spikes of electrical issues. 

Therefore, an EMS will help provide you protection from all sorts of potential electrical risks. It immediately turns the power off as soon as it identifies an issue that can lead to much bigger issues for your RV and the appliances. 


Surge protectors tend to be more affordable than an EMS; however, when it comes to protecting an RV’s electrical system and all the appliances, it is always better to rely on an EMS for protection. 

How to Hook Up an RV Surge Protector

If you’re planning on going on an adventure in your RV, make sure to install a surge guard before you head out. However, if you don't have any idea how to install one, go through the following steps. 

  1. You’ll see six gauge, three wires, one hot, one neutral, and one ground that will go into the EMS. You have an input and an output on the guard. Make sure the power is turned off. 

  2. Verify and make sure there is no power in any line. Disconnect the shore power, which is the input from the plug on the side of the RV that goes into the EMS. 

  3. Trim the ends of the wire with a wire stripper. Line up the wires, then attach them to the guard and screw it in. Then mount the guard, making sure to keep it away from any pipes and potential water leaks. 

  4. Install small clamps to take the pressure off the connection and put them up on the structure so that the wire doesn't yank on the guard while you're on the road. 

  5. Screw-in the wires in their respective places and make sure to screw in tight. The wires will be connected to the lines' side, and from the load side, the wires will extend towards the ATS. 

  6. Now hook up the control cable and then turn on the power. The guard will show you a delay. 

  7. Then run the wiring towards the EMS, inverter, and the battery monitor, and you'll be good to go. 

In case you still have queries regarding the process, you can watch the video mentioned below. 


Making the decision to move forward with a surge protector is one of the smartest moves for anyone with an RV. Regardless of whether you use your RV one time a year, or year-round, the time will come where you’ll find yourself in need. But, rest assured with a solid pick, this won’t matter.

All of the models featured on our list are reliable, affordably priced, and come with an insurance policy for unexpected damages. If you end up choosing a model from our list, please be sure to visit us again after testing it out and let us know about your experience. We love hearing from readers and look forward to hearing from you! Happy camping, everyone!

People Also Ask

There are many different models available in the market. They work as insurance for RV and the electrical appliances. Therefore, before making a decision, people often ask the following questions:

How to Use a Locking Ring on an RV Power Surge Protector

To prevent your surge protector from getting stolen, you need to make sure that you lock it. You can use a locking ring on your surge protector. All you have to do is to wrap the locking ring around the surge protector and then secure it to the pedestal power post. 

How Do I Reset My Onboard RV Surge Protector?

Nowadays, most high-quality surge guards do not feature a reset button. Instead, they come with an On/Off switch, which allows you to conveniently reset the power. Once you’ve turned off or reset the surge guard, wait for a bit. 

How to Test an RV Surge Protector

Once your RV surge guard reaches its limit, it can no longer take in any more unsafe voltage, so it stops working. Since these protectors do not feature any kind of display for indicating whether they are operating or not, it becomes difficult to monitor the joule's status. 

However, these protectors are integrated with LED indicators that let you know when they fail. Some high-end models feature an audio alarm that provides you with notifications. If you see a green LED illumination, then your protector is 100 percent functional; however, if you don't see the green light, that means there’s something wrong. 

How to Lock a Portable RV Surge Protector

There is the option of buying a portable surge protector; however, you need to know portable units are more susceptible to theft as you are required to leave them out of the RV along with the power cord. Therefore, you need to secure them to prevent them from getting stolen. 

To do so, you can use a bicycle chain and a padlock combination to secure it. Just tightly wrap the chain around the cord and put the padlock on. Alternatively, you can use a lockbox specially designed for protecting surge protectors. This helps by locking the protector and the power cable to the electrical pedestal. You can even use a locking cable, or you can get a hardwired surge protector instead. 

This method is quite similar to the bicycle chain method; you have to wrap the cable lock around your unit and then attach it to the pedestal power post.

How to Secure an RV Surge Protector

Many of the models come with locking brackets that make it easy to secure them to your RV. They are easy to install and reduce the risk of theft.  

How Does a Surge Protector Work?

In the case of an  increase in voltage such as faulty power supply or a lightning strike, a protector detects the current and helps to even-out sudden peaks of electricity in the supply. This reduces the chances of damage to electronic equipment.

How to Tell if a Surge Protector is Bad

Most are designed with three diagnostic LEDs that indicate the operational status of your surge protector before and after a surge. To find out if it is still working normally, look at the ‘Protection Present’ or ‘Protected’ LED on the front. If it is illuminated green, then your surge protector is good to go. However, if it does not illuminate, then there is something wrong with your model.

How Long Does a Surge Protector Last?

The components inside wear out a little more with each surge and there is no way to find how much protection remains. However, a good quality surge protector has an average life of three to five years.

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My husband and I live a life on the road so we figured no better way to share our journey than through a blog! While traveling place to place as RV noobies, we quickly realized how often we were in need of RV accessories and supplies. This led us to launch RV Expertise and sharing our top picks.