If you own an RV, you most likely have a lot of electrical appliances around your rig such as an RV air conditioner, coffee makers, or RV TV but either way, it is very important to protect them with an RV Surge Protector.

 Power supplies fluctuate which can affect these appliances negatively. In an unfortunate circumstance, your power supply may blow out your appliances. This would end up in you spending a great amount of money just to get the appliance/s fixed.

Before we move on, what is an RV Surge Protector? This is a device used by RV owners to prevent drastic voltage fluctuation of your electrical appliances. A standard surge protector can protect your appliances from a sudden upsurge while an advanced surge protector can adjust the power to protect the RV and can protect you from miswiring.

You must be careful in choosing an RV Surge Protector since the well-being of your appliances will depend on your choice. When choosing the right surge protector, you must first consider a lot of factors such as should it be portable? Or hard-wired? Do I need 30 Amp or 50 Amp? These are just a few of the many things you should consider before buying. Luckily, we are here to help you choose what RV Surge Protector is best for you.

What Are The Different Types of RV Surge Protector

Primary Surge Protector

They don’t only protect RV appliances, they also protect the inner wiring. It has greater visibility and can mostly protect against electrical surges. But, its effectiveness and power mean that they’re harder to install.

Secondary Surge Protector

This is the most common surge protector which is small and portable so it can be plugged to any outlet. Though, they’re not as powerful as a primary surge protector, they’re still favored by RV users.

Power Strip

It is a type of secondary surge protector which can be connected to a power outlet and has a lot of sockets which allows you to connect several appliances. Power strips are generally used to cut off power when fluctuation occurs.

Uninterrupted Power Supply

These types of surge protectors runs on battery and are available in a variation of styles. Similar to the power strip, it cuts off power in case of fluctuation which protects your appliances.


Progressive Industries HW5OC

Progressive Industries HW5OC

Surge Protection: 5-Mode / 3,580J / 88,000A. Ratings: 50A / 120V/240V / 12,000W.

This is simply one of the best hard-wired, 50-amp surge protectors. It offers complete protection with its 50 Amp and is permanent since it’s hard-wired. Rated 3580 joules and 88,000 amps.

They offer instant electrical surge protection, it reacts in a matter of seconds and disconnects immediately the power supply to the RV. Not only does it protect you from external conditions, it also protects the RV from human folly. However, it will not function if you plug them into a 240-volt power source.

The Progressive Industries HW5OC is also equipped with a legible LED that displays information such as, line voltage, amp, frequency, and more. 

It comes with a 14’in cable but you can extend it by adding a 4-conductor phone cable. You could also contact the manufacturer to create a custom cable length which retails for $1.25 per foot.

However, a big drawback of this surge protector is the sound it makes. Though the sound isn’t too loud, it’s still heard clearly, especially at night since it’s connected to the RV itself.


·      It only takes a single installation.

·      Provides complete protection.

·      No one can steal it. 

·      You can read the display from the inside of the RV.

·      It comes with a lifetime warranty.


·      It generates a buzzing sound.

·      Because it is a hard-wired protector, you might need external help which will cost you extra bucks.

Surge Guard 44290

Surge Guard 44290

 Surge Protector – 120/240V, 50A. Features surge protection indicator and thermal sensor to indicate overheating plug/receptacle. Weather resistant with a rain-proof cover.

The Surge Guard 44290 is a portable 50-amp, rated at 4200 joules and 65,000 amps. Since it’s not an advanced surge protector, it can only protect against voltage upsurge. This is a budget-friendly protector for those who only need basic protection. 

These also come with LED displays that show electrical issues. But it doesn’t automatically cut off power supply when fluctuation occurs so have to keep an eye and cut off the power supply yourself when you start noticing something’s wrong.

The surge protector is built with an overheat indicator that starts flashing when the plug or receptacle overheats. It is also weather resistant so you can still connect it even when it’s raining heavily. 

Lastly, it comes with an anti-theft lock ring located at the cord which is very essential since this surge protector is portable, it’s prone to theft. But, if the thief is determined, they will still be able to get the surge protector. The anti-theft just gives the owner more time to catch the thief.


·      There’s no installation needed, you just need to connect it.

·      Can protect against power surges.

·      Has a lifetime warranty.


·      It doesn’t automatically stop the power supply unless it’s a voltage upsurge.

·      Even though it comes with an anti-theft lock ring, someone can still steal it.

·      It has to be plugged in the campground every time you move.

·      It can touch the ground when the power source is low.

Progressive Industries HW5OC

Camco 50 Amp RV Power Defender Voltage Protector

RV Electrical Protection: Protects your RV from dangerous high (>132 VAC) and low (<102 VAC) voltage levels as well as power surges. Integrated Surge Protection: Up to 4, 200 Joules

This RV Surge Protector is portable, with 50-amp, and rated at 4200 joules. The Camco Dogbone 55313 comes with diagnostic lights that indicate when there’s an issue with the connection before you can connect the RV’s power cord to the electrical outlet. It is also weather resistant.

It’s biggest drawback is its vulnerability. Since this surge protector is portable and left outside the RV, it is prone to being stolen. The indicator lights aren’t very bright during daylight, you really have to get close to see properly. However, at nighttime the indicator lights are very visible.


·      Budget-friendly.

·      Very easy to use and understand.


·      Similar to the Surge Guard 44290, it only indicates the issue but it doesn’t automatically cut off the power supply.

·      Sometimes difficult to plug.

·      The indicator lights aren’t very reliable.

·      It doesn’t come with an anti-theft lock.

Progressive Industries EMS-PT30X

Progressive Industries EMS-PT30X

Surge Protection: 3-Mode / 1,790J / 44,000A. Ratings: 30A / 120V / 3,600W.

The Progressive Industries PT30X is a portable 30-amp that is rated at 1790 joules and 44,000 amps. It is EMS which provides complete surge protection. It can identify issues and cut off the power supply in a matter of seconds.

A lot of portable surge protectors can only protect your RV from sudden electricity upsurge but can’t automatically turn off the power supply. However, the progressive Industries PT30X has an advanced surge protector which monitors the power and reacts very fast.

It’s 100% weather resistant and has a Lexan housing all-weather shield that protects not only the surge protector, but the shore power cord’s entrance into the electrical unit as well.

Since it’s quite heavy for a portable surge protector, it’s quite difficult to connect.


·      Protects the RV from power-related issues.

·      No installation required.

·      Has a lifetime warranty.

·      Has a built-in locking bracket.

·      Has Lexan housing all-weather shield.


·      It’s expensive.

·      It can only be used vertically.

·      Can easily be stolen even when locked.

·      Doesn’t perfectly fit in all power stations.

Progressive Industries SSP30 Smart Surge

Progressive Industries SSP30 Smart Surge

Surge Protection: 3-Mode / 825J / 22,500A max current spike. Ratings: 30A / 120V / 3,600W

It is a portable, 30-amp with a rated 825 joules and 22,500 amps. 

This acts as more of a surge indicator rather than a surge protector. It can protect you from overheating and an upsurge up to its capacity (825 joules) but beyond that, it’s useless. 

Has LED light indicators to determine issues but, just like most portable surge protectors, it only warns you, it doesn’t automatically turn off the power supply.

A big drawback is it’s not weatherproof since portable surge protectors are placed outside the RV. Everytime it starts to pour, you still have to disconnect it which is a hassle.

It also doesn’t include an anti-theft lock which makes it vulnerable to theft.


·      Very lightweight.

·      No installation required.

·      You can connect it to most electrical outlets.

·      LED light indicators are bright.

·      Automatically turns off in case of surge failures.


·      Not weatherproof.

·      It can’t protect your RV appliances from serious power surges.

·      It’s more of a surge indicator rather than a surge protector.

·      Can be stolen easily.

·      Can only withstand 825 joules.

TRC Surge Protector 44260

TRC Surge Protector 44260

Identifies faulty park power plus offers 2100 Joules of surge protection

The TRC Surge Protector 44260 is a portable, 30-amp that is rated at 2100 joules. 

This plug is designed to have a low profile so that it can easily fit into a receptacle cover. Its indicator lights are very hard to see in sunlight but at night, it’s very noticeable. 

This portable surge protector can only do two main things. It checks the polarity to provide protection against upsurge but once again, doesn’t cut off power supply automatically. 

It comes with a lock that you have to break before you can steal it.


·      Has 2100 joules which is impressive for a 30-amp surge protector.

·      You can simply just plug it in.

·      It can identify faulty wiring.

·      It’s weather resistant.

·      Equipped with a lock hasp.


·      Its indicator lights are too weak.

TRC 44750 Surge Guard 30-Amp Portable with Shock Shiel

Technology Research 44750

10/3 AWG cord.120-Volt, 30-Amp, 510 Joules.

This is a portable, 30-amp surge protector with 510 joules. It comes with a shock shield and extremely limited joules which means that it could be fried with just a small upsurge. But, it will prevent your RV appliances from getting fried. 

The device will turn off if it counters a surge and it will stay turned off until you manually reset it. A big issue with this model is it doesn’t have sufficient LED indicator lights. 

If you want a budget-friendly and portable surge protector to keep your appliances safe from short and electric spikes, this is the way to go but, this is not suitable for when you’re looking for something that can protect you from low voltage.


·      Has a shock shield.

·      Weather resistant.

·      It has ergonomic plug handles.

·      Automatically turns off the power supply when there are ground faults.


·      It has no protection from low voltage.

·      Has very limited joules.

·      It will get fried with one massive power surge.

·      You have to manually reset it after a power surge.

·      Has NO LED lights.