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7 Best 50-Amp Extension Cords for Your RV

Sometimes parking close enough to electrical hookups is just not an option. This is exactly why Rvers should always carry a 50-amp extension cord with them. 

But which cable is best? Join us as we learn more about these extension cords and some of the best options on the market today.

What is a 50-Amp Extension Cord?

A 50-amp extension cord is a long cable, typically 20-50 ft, that connects your RV power cable to an electrical hookup. RV power cords come in different sizes, the most common being 20, 30, and 50 amps. 

Most RVs have 30 or 50 amp cords. However, there are a few differences between these two cable gauges. 

First, the 30-amp plug has three pins and carrys one 30 amp circuit. A 50-amp plug has four pins and carries 2 50 amp circuits. That extra pin is necessary because a 50-amp cable brings in two 120V wires for a total of 240V. A 30-amp only has one hot 120V pin. Therefore, a 50-amp plug can draw up to 12,000W of power, and a 30-amp plug can only do 3,600W. 

Ultimately, the 50-amp cord is the largest cable and can typically bring electricity to the larger or additional appliances you’ll commonly see in big RVs.

Pro Tip: In addition to having a high-quality power cord read our article about using a good surge protector with automatic shutoff is a great way to protect your RV.

When Do You Need a 50-Amp Extension Cord?

Simply put, 50-amp RV extension cords are necessary when the RV power supply cord will not reach the electrical hookups. For example, you’ll need a 50-amp extension cord if your power cable isn’t long enough to reach your electrical hookup. 

Just be aware of the safety rules of extension cords. You should only use them when necessary, and they shouldn’t be a permanent solution. You should also ensure a secure connection between all plugs and power supplies. 

Additionally, check that your plug connections are never left on the ground or in places they can get wet. You can always purchase or make simple boxes to protect your plugs.

RV extension Cord Adapters
RV extension cords are necessary if you cannot get close enough to an electrical hookup.

Pros and Cons of a 50-Amp Extension Cord

Its possible to use lower amperage extension cords but you will limit what you can draw in your RV. Learn more about using smaller cords in our article “Can You Hook a 30 Amp RV to 50 Amp Power?

There are many benefits of a 50 amp size extension cord. First, they have a lower gauge wire, making them more efficient and safer because lower wire gauges create less voltage loss, resulting in lower resistance. And lower resistance reduces the likelihood of electrical fires. 

Another benefit is they typically range from 15 – 25 ft long. This is the perfect length for an extension cord because longer cable lengths lead to voltage drops. A cable of this size also coils up compactly, which makes it easy to transport and store. 

User-friendly handles make it easy and safe to connect and disconnect your power supply as well.

Keep in mind that even with a large 6 gauge 50 amp extension cord you will notice a voltage drop under heavy loads when using it. A voltage drop can cause many issues with appliances in your RV. Using 100 feet of 50 amp RV cord is still not a great idea if you plan to use a lot of power. Keep in mind that you should limit your power consumption when using long cords.

Pro Tip: Learning about the electrical system in your RV can be complicated, so we made a guide with Helpful RV Electrical Basics for Beginners.

Multiple extension cords hanging on wall.
Regular household extension cords are not a good idea to connect your RV.

Can You Use a Household Extension Cord for Your RV?

It is possible but its not a great idea because they don’t have the proper wire gauge. Household extension cords use a 14 or 12-gauge wire, smaller than 50-amp extension cords that use a 6/3 gauge and 8/3 gauge for the ground wire. 

Therefore, using a household extension cable would cause too much electricity to flow through a smaller gauge wire and damage the cord. It could also damage your RV’s electrical system and even start a fire. So, find an appropriately gauged wire for your RV.

If you choose to do this, be sure to minimize your power use and use an inline breaker on the extension cord for safety.

Electriduct GFCI Inline with 18" Single Outlet...
  • Class A GFCI | 15 Amp | Automatic Reset
  • NEMA 5-15 P&R connectors | 12/3 SJTW cord
  • UL and CUL designated rainproof for outdoor use | OSHA compliant

7 Best 50-Amp Extension Cords for Your RV

Finding a high-quality cable for your RV can get complicated. Here are seven of the best options that should help you with your search.

#1. Camco 30’ PowerGrip Heavy-Duty Outdoor Extension Cord

Price: $144.35

The Camco 50-amp extension cord is 100% copper wire with a heavy-duty, flame retardant, and heat-resistant PVC covering. It’s made of 6/3, and 8/1 gauge wiring rated for 50-amps and transmits 120V and 12,500W. It also comes with an adjustable cord for organizing and carrying strap for transporting and storing the cable. 

Camco Power Grip 30-Ft 50 Amp RV Extension Cord -...
  • POWER YOUR RV EFFORTLESSLY: Power up your RV with Power Grip's...
  • PREMIUM DESIGN & ENGINEERING: This ultra-flexible RV must-have is...
  • 100% COPPER WIRE CONSTRUCTION: Get reliable power with standard...
camco product shot of extension cord.
Camco is a well established RV brand that will help you not get caught without the power you need.

#2. Leisure Cords 25’ Extension Cord

Price: $139.99

The Leisure 50-amp extension cord has a 50-amp male and 50-amp twist-lock female end that are watertight for increased safety and comfort. It’s also constructed with the standard 6/3 and 8/1 gauge wires to transmit 125V. It also comes with a 1-year warranty. 

Leisure Cords 25' Power/Extension Cord with 50 AMP...
  • This 25 foot, 50 Amp locking power cord allows you to connect the...
  • Plug: 14-50P - Receptacle: SS2-50R -The cordset is manufactured...
  • Watertight molded plug and connector ends for safety and...

#3. Conntek 15’ UL Listed RV Extension Cord

Price: $114.94

The Conntek 50-amp extension cord has ergonomic heavy-duty molded plugs with LED indicator lights. The interior wiring is 100% copper with 6/3 and 8/1 gauge wiring that is UL certified. 

The Underwriter Laboratories (UL) “has the strictest metrics in product safety and manufacturing techniques,” which means one can trust a product with UL Certification.

Conntek 15304 15-Feet, 50-Amp RV Extension Cord...
  • Plug (Male): NEMA 14-50P
  • Connector (Female): NEMA 14-50R
  • Jacket: STW, Hard-service cord & Outdoor Rated
Extension cord attached to RV.
Don’t let distance stop you from getting the full electric set up you want.

#4. Kohree 50’ RV Power Extension Cord with Grip Handle

Price: $246.66

The Kohree 50-amp extension cord has a watertight, molded plug with a twist lock female end and LED indicator light. The interior wiring is 100% copper 6/3 and 8/1 gauge and has a PVC covering, which improves water resistance, conductivity, and flexibility. The 50 feet should be plenty long to connect to electrical hookups when needed.

Kohree 50' RV Extension Cord 50 Amp Generator...
  • ⚡【Heavy Duty Extension Cord 50FT】6/3+8/1 Gauge STW wire...
  • ⚡【 Twist Lock Design】50 Amp Male to 50Amp Female locking...
  • ⚡【Finger Grip Plug & 90°Heads】Allows you to plug in or...

#5. RVGUARD 50’ RV Power Extension Cord

Price: $247.33

The RVGUARD 50-amp extension cord has the standard 100% copper 6/3 and 8/1 gauge wiring with an STW jacket. It also has a disconnect handle and LED indicator light on the plug. It’s also easy to organize and store with the bag and carrying strap.

RVGUARD 50 Amp 50 Foot RV Power Cord, 14-50P to...
  • Electrical Rating: 50 amp RV power cord, with 50A male (NEMA...
  • Superior Durability: constructed from durable and weather...
  • Disconnect Handle: Easier to plug in and plug out without...
Close up of an extension cord
Depending on your RV, a 30-amp extension cord can also work well.

#6. CircleCord UL Listed 30’ RV/EV Extension Cord

Price: $149.63

The CircleCord 50-amp extension cord is made from pure copper wire with “a heavy-duty flame retardant, heat resistant, UV resistant PVC,” which protects from the natural elements. Both female and male plugs have ergonomic grips for easy and safe connecting and disconnecting. It also comes with a printed storage bag.

CircleCord UL Listed 50 Amp 30 Feet RV/EV...
  • 【ELECTRICAL RATING】 50A, max rate 6250 Watt (125V) / 12500...
  • 【UL LISTED】 High quality standards. Pure copper wiring coated...
  • 【MULTIPLE USE】 NEMA 14-50 plug 50 Amp extension cord is suit...

#7. GoWISE Power 15’ 50 Amp RV Extension Cord

Price: $74.99

Although this cable comes with an economical price tag compared to others on this list, it’s still a high-quality product. However, it’s significantly shorter than others we mentioned. The GoWISE 50-amp extension cord is 15 ft. long and has molded male and female connectors and handles. It also comes with a carrying and storage strap.

Pro Tip: Still unsure what extension cord is best for you? Read more to find out What Kind of RV Extension Cord Do You Need for Your Camper?

Is a 50 Amp Extension Cord Worth It?

There are some cases where a 50-amp extension cord may not be worth it. For example, an RV with 30-amp supply cords or a power pedestal with 30-amp hookups won’t have much use for a 50-amp extension cord. 

However, most situations and the many benefits of a 50-amp extension cord have proven that purchasing and keeping one on hand is always worth it. And, if you’re buying one of these 7 cords, you’ll have a high-quality cable in storage.

What is your go to extension cord for your RV? Drop a comment below!

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About Tom Morton

Tom, a Pacific Northwest native, is our technical genius. Born in Washington and raised in Alaska before settling in Michigan. He's the man who keeps our operation running, both figuratively and literally.

With a background in Electrical Engineering, Tom specializes in RV solar systems and lithium batteries. He made history as the first documented individual to use a Tesla battery module as an RV battery. Tom has personally assisted countless RVers with system installations and has educated thousands more through his videos and articles.

Cinematography is another of Tom's passions, showcased in his work on the Go North series. You can see his camera skills on display in The RVers TV show on Discovery Channel and PBS where he also stars as a co-host.

Tom's mechanical expertise extends beyond RVs to boats, planes, and all things mechanical. He's renowned for taking on maintenance and repair projects single-handedly and is often spotted underneath RVs, making him the technical backbone of our endeavors.

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