What Type Of Fuses For RV?

Electricity lights up the modern world, and sometimes that light can turn into a fire hazard. Hence a small device called ‘Fuse’ – comes into action.

Fuses prevent any such accidents from happening and protect the electrical equipment from energy overloads. 

Almost every mechanical or electrical tool and equipment in this modern world have a fuse. RVs are no exception- they also require fuses to prevent any fatal disaster. However, there are many different types of fuses for different mechanisms and purposes in an RV.

In this article, we are going to talk about every aspect of RV fuses- So stay hooked till the last to know more about RV fuses.

What kind Of Fuses For Rv?

Recreational vehicles or RVs have various types of fuses in use. Whether to fix a blown fuse or for ensuring RV replacement fuses it is a must to know what kind of fuses an RV usually requires. 

What kind Of Fuses For Rv

Glass Cartridge Fuse

These kinds of fuses are mostly made of ceramic, porcelain, or glass, and they are very tiny and fragile yet very useful.

Glass Cartridge Fuse

They are mostly used to prevent short circuits in any equipment and power lines of an RV. They protect both the wire and the equipment.

Blade fuses

Depending on the amperage, blade fuses can be made of silver, copper, alloy, aluminum, and zinc. What kind Of Fuses For Rv?

Blade fuses

There are various types of blade fuses. The 12 volt 15 amp fuses for RV batteries are usually bladed fuses. Besides that, all the ATO and ATC fuses that are used in any automotive, including RVs, are blade fuses.

Slow Blow Fuses

These fuses usually take more time than any normal fuse to blow, and that is why they have been used for certain purposes. Place that encounter big blows for a very small amount of time. Mostly such power disruption occurs when we switch on some heavy electric equipment, like a motor or air conditioning.

Slow Blow Fuses

Slow blow fuses are mostly used for air conditioning and refrigerators in an RV.

Circuit Breakers

These fuses are everywhere, from the garage to the office to an RV. They are actually big switchboards, and their sole purpose is to provide protection to the whole electric circuit of the RV against any kind of overload or short-circuit.

Circuit Breakers

Electronic appliances like refrigerators, air conditioning, or microwaves that uses the 120 AC power line- must have a circuit breaker for protective measure.

Solar Fuses

It depends- if the RV has a solar panel, then it is supposed to have a solar fuse, and if it doesn’t have a solar panel, then there’s no reason for it. They are also known as PV fuses.

As solar panels can sometimes have a very high DC voltage, these fuses are mostly 1000 V DC.

Solar Fuses

There is an RV electrical wiring diagram, to show you the whereabouts of all the fuses placed in your RV.  Even you can build a camper van fuse panel box by yourself with proper knowledge of this diagram.

Do Rv Inverters Have Fuses?

An inverter’s job is to turn 12V DC power into 120V AC power.

A fuse is a must-have device in any inverter to protect both the inverter and the wirings. Therefore, all RV inverters generally have fuses.

Do Rv Inverters Have Fuses

An ANL fuse holder is a great device to protect such a high-power battery feed and inverter in an RV.

What Is The Difference Between ATO And ATC Fuses?

ATO and ATC fuses are basically two-blade type fuses for automotive. They are mainly there to protect the wirings in the car. 

It often gets confusing- if these two are for the same purpose or not, or if they are the same or different.

What is an ATO fuse?

ATO is a specific kind of automotive blade-type fuse that was invented by a company called ‘Littlefuse’ in 1976.

What is an ATO fuse

Upon googling the term ATO- a lot of resources may lead you to false information that the ‘O’ in the name stands for open. Whereas, there s no such fact behind that. The company wanted to patent it by the name AUTO, as it was intended to be used in automotive- but that name wasn’t available. That’s why inventors went for the name ATO.

What is an ATC fuse?

ATC stands for ‘automatic transfer case’- which is a fuse dedicatedly made to be used in vehicles and low voltage control circuits. The company ‘Bussmann’ owns the patent for these fuses.

What is an ATC fuse

Plenty of the resources entails that the ‘C’ stands for something close- but there is no truth behind any such information.

Differences between ATO and ATC fuse

Basically, ATO and ATC fuses are for the same purpose and do not have any major differences. 

They are just two fuses produced by two different companies, with two different names, and invented at two different times. In fact, both of them have the same amperage, and that’s why it is possible to interchange them.

Are Rv Fuses And Car Fuses The Same?

RVs and cars- are two different kinds of vehicles with different applications and features. Necessarily, RV fuses and circuit breakers are different from any car.

Even the RV fuse size and the car fuse size do not match. 

Are Rv Fuses And Car Fuses The Same

An RV can be compared to a travel trailer, which itself is a vehicle; thus, it requires a lot of different fuses than a mere car.

Do All Rv Converters Have Fuses?

Converters are essential equipment for an RV. They basically convert the 120V AC power line into a 12V DC power line. This is a very serious task cause whenever the RV is connected to any other outer electric source- it mostly receives the power in 120V AC, whereas a lot of equipment is powered only on 12V DC. 

Do All Rv Converters Have Fuses

In such a serious conversion of such heavy energy, a fuse can prevent any accident, both the wirings and equipment.

Thus, all the RV converters have fuses, and mostly they use 35 amp fuses.


Electric fuses are very simple and small- but the task is huge. No one knows how many times it has saved your equipment from going into ruin or prevented a massive fire breakout. Hence, it is important to gather as much knowledge as possible about fuses on your RV.

We have provided you with enough knowledge or at least laid out the outline to help you form your own blade fuse kit.