A 50 amp portable generator is a generator that offers you a 50 amp outlet. The next question that comes to our mind is why we need a 50 amp outlet. A 50 amp outlet is required to connect heavy loads to your generators such as an RV, powerful appliances at home or work, and construction sites.
Things to take care of while buying a 50 Amp Portable Generator
Before you begin looking for the best generator with a 50 Amp plug, it is better to know what you are looking for and avoid mistakes while buying. First of all, it must meet your power needs so that you don’t have to make any compromises. It must have an affordable running cost, must be durable and user-friendly. It must also be easy to move from one place to another.
To help you in selecting the best 50 Amp generator, we have developed this guide. It will present you with the best 50 Amp generators available in the market, along with a buying guide and a FAQ section. After reading this guide/review, you will identify your needs and buy a generator that is best suited to your needs.
Portable Generators with 50 Amp Plug Comparison Chart
Terms used in the below table along with their meanings:
Gas Tank Size (Gallons)
Runtime @ 50% Load (Hours)
G & P
G: 12,000, P: 11,400
G: 9,500, P: 9,025
G: 8.83, P: 7.2 @ 40 lbs tank
30 x 29 x 26/224
G & P
G: 12,500, P: 11,200
G: 9,500, P: 8,500
G: 12, P: 8 @ 40 lbs tank
27.2 x 26.1 x 26.5/220
G & P
G: 11,500, P: 9,500
G: 8,300, P: 7,500
G: 8.5, P: 6 @ 40 lbs tank
27.3 x 20.6 x 21.9/214
28.5 x 21.6 x 24 /216
G & P
G: 10,000, P: 9,000
G: 8,000, P: 7,000
G: 12, P: 9 @ 20 lbs tank
28.5 x 22.2 x 21.8/209
27.3 x 26 x 27.8/230
35.7 x 32.7 x 35.8/347
If you are willing to buy a 50 amp portable generator, check the following seven best generators.
1. DuroMax XP12000EH Portable Generator– Best Dual Fuel 50 amp Portable Generator
DuroMax offers one of the best generators with a 50-amp outlet. The 457cc engine in the generator can produce 12,000 watts starting power, 9,500 watts running power on gasoline and 10,200 starting watts on propane, and 8,075 running watts on propane. You can utilize this power to run heavy machines at home, your RV, and worksites.
It is a highly portable machine because of its heavy-duty wheels and foldable handle. The outlets consist of one 120/240V 50-amp plug, two 120V 20A GFCI protected outlets, one 120V 30A, one 120/240V 30A, along a 12V 8A DC outlet. You can run various machines without any issues.
XP12000EH is an electric start generator. The MX2 technology enables the generator to double the 120-volt amperage. You can get 120V power from each of the 120V outlets or operate the unit at 120V or 240V together. This feature makes the machine versatile and increases its functionality.
The tank size (8.3 gallons) is big enough to give a runtime of up to 9 hours at 50% load. You can monitor the fuel level with the built-in gauge and check the working parameters of the generator through the display screen. The machine has various safety features like low oil shutdown, overload, surge voltage, and short circuit protection. It is also EPA and CARB certified.
2. Westinghouse WGen9500DF Portable Generator– Most Fuel Efficient
The next machine on our list is from the house of Westinghouse. It is also a dual fuel machine and is built around a 457cc Westinghouse engine. The engine produces 12,500 peak watts and 9,500 rated watts on gasoline. The output on propane is 11,200 starting and 8,500 running watts. The starting power provided by this unit is more than the one reviewed above. It means that you can use it to start heavier appliances.
The runtime is 12 hours on gasoline and 6 hours on propane with half load. The runtime is also impressive. With one full tank, you can run your AC, refrigerator, and other essentials for one night without any fluctuations.
Please note that the machine produces 74 dBA running sound, and it is in line with other generators in the same category. You can also start the generator with a remote. It is a CARB-certified and EPA-approved machine. You can use this machine in all 50 states. It is a valuable buy with an impressive residential warranty and safety features like low oil shutdown, overload protection, and surge voltage protection.
You get a 120/240V 50-amp outlet, four 120V GFCI household outlets, one transfer switch ready 120/240V 30A outlet, and one smart switch ready outlet. The outlets are enough to run a wide variety of appliances. You can move the machine with heavy-duty wheels and a handle.
3. WEN DF1100T Portable Generator– Quietest Pick
It is an affordable and reasonable generator to meet all your power needs. The starting wattage is 11,000 watts and the running wattage is 8,300 watts on gasoline. The peak power on propane is 9,500 watts and rated power is 7,500 rated watts. This machine is an ideal fit to run your heavy appliances, power RVs and run your tools at a worksite.
Just like all the other machines on our list, it has a 120/240V 50-amp outlet. Other than this, you get one 120V 30A outlet, four GFCI 120V 20A outlets, and a 12V 8A DC outlet for battery charging. The outlets are enough to run a variety of machines at one time. You can also connect this machine with the main electric panel of your home through a transfer switch.
You can start the generator with a key or pulling roper. The runtime of this machine is also impressive, and it gives up to 8.5 hours runtime with a full gasoline tank. The runtime with propane depends on the load applied and the size of the propane cylinder. To get more runtime, you can switch the fuel type with an easy-to-use fuel selector switch.
One fantastic feature of this machine is its low running sound. It is less noisy than DuroMax and Westinghouse. The machine has features like a digital display, automatic low oil shutdown, overload protection, surge voltage protection, and short circuit protection.
4. A-iPower SUA12000E Portable Generator– Inexpensive
A-iPower is known for making quality generators at an economical price. This machine is a gasoline-powered generator and can produce 12,000 starting and 9,000 running watts. The output is enough to run heavy appliances at home and power RV appliances like AC, refrigerator, TV, stove, and all the other small devices and tools at a worksite. It is important to highlight that this is a gasoline-only model, and you won’t be able to use it once your gasoline stock ends.
It comes with a 120/240V 50-amp outlet, one 120/240V outlet, and four 120V 20A GFCI outlets, along with a 12V 8A DC outlet. The machine makes sure that you can connect all your appliances without any issues, and you don’t have to buy external cables or convertors with it. All the outlets are protected with rubber coverings to keep dust and water away.
You can start the 459cc engine with a push button or a recoil starter. One of the best things about this generator is a bigger fuel tank (7 gallons) which ensures longer runtime (up to 9 hours @ 50% load), so you can continue your work without any interruptions.
You can easily move the generator around with the help of big and never-flat wheels and an ergonomic handle. Please note that this machine is not CARB compliant, so it can’t be sold or purchased in California.
5. Pulsar PG10000B16 Portable Generator– Lightest
Next up, we have another dual fuel 50-amp generator on our list. Pulsar has been around for quite some time now and is well known for making quality portable generators. The machine has a 420cc engine which can produce 10,000 watts peak power and 8,000 watts rated power on gasoline. For propane, the maximum output is 9,000 watts, and rated power is 7,000 watts. The power range is lesser than the dual fuel generators reviewed above, but you can still run-heavy machines, RVs, and tools without any issues.
The generator has one 120/240V 50-amp outlet, four 120V 20A household outlets, one 120V 30A outlet, and one DC charging outlet. The outlets are enough to connect heavy machines, household items, and other devices at one time without extensions.
The generator is lightweight and compact, making it highly portable with the help of big wheels and two drag handles. You can start the machine with a push button or pull the recoil starter. What’s most impressive about this unit is its runtime. It has the highest runtime compared to all the generators reviewed above. A full gas tank can last for 12 hours with a half load on the generator. Propane’s runtime is also outstanding.
The unit keeps the appliances, the machine itself, and the user safe through its safety features. It comes with an hour meter to let you stay ahead of the maintenance schedule. Please note that it is not CARB compliant but comes with an EPA certification.
6. Champion Power Equipment 100161 Portable Generator– Best 50 amp Portable Generator with Volt Guard
When we talk about the best portable generator with a 50-amp plug, Champion’s 100161 deserves a spot on the list. It has a 439cc gasoline engine and can produce 9,375 starting and 7,500 running watts. The output makes an ideal machine for small to medium-sized homes, RVs, and running small tools at worksites.
Apart from a 120/240V 50-amp plug, you get an RV-ready 30A 120V outlet, one transfer switch ready 120/240V 30A outlet, and four GFCI 120V 20A GFCI protected household outlets. Please note that there is no DC outlet for battery charging. You can start the engine with a remote (80 feet), key, and manually. So, a cold start won’t be an issue in this model.
As far as the runtime is concerned, it is 8 hours on a 6-gallon tank. It is important to highlight that there is no fuel gauge in this model. The machine operates at 74 dBA at a distance of 23 feet. The noise rating is a bit higher compared to machines with higher outputs. It is EPA and CARB certified with a 3-year limited warranty. The unit comes with surge voltage, overload, overheat, and short circuit protection. All these features make it a great machine to own.
7. CAT RP12000E Portable Generator– Heaviest Unit
CAT RP 12,000E is a feasible option for people that need more power than an average 50-amp portable generator can produce. The generator features a powerful 670cc V-twin OHV engine and delivers 15,000 starting and 12,000 running watts. It is ideal for big homes, large RVs, and running heavy tools at worksites. You won’t feel the need to look for secondary units or power banks to run your small tools or appliances with so much power. The output has less than 5% THD, making it safe for sensitive tools and appliances.
The tank size is 13.2 gallons, and the machine can run for more than 11 hours at 50% load. The machine has an idle control feature which is rare in conventional portable generators, and it helps enhance the runtime. The power-runtime ratio is impressive and beats all the models reviewed above. The outlets on this model support the output capacity and give the users freedom to run as many appliances as they need. Out of the 8 outlets, one is 120/240V 50A plug, one is 120/240V 30A outlet, two are 120V 30A outlets, and four are 120V 20A outlets. It also features a DC outlet for battery recharging.
Unfortunately, there is no recoil starting back up, and you can start the machine with only the electric start option. It can be troublesome if the electric starting mechanism malfunctions. Other features in this machine are a data center, low oil shutdown, overload protection, and surge voltage protection. It is only EPA approved machine; you can’t use it in California.
Consider the following factors when purchasing the best portable generator with a 50 amp plug.
Output and Power Needs
All generators with a 50 Amp plug are significant and provide way more power than a small generator/inverter. So if your power needs are around 2000-3000 watts, you must look for a smaller generator. 50 Amp generators are big boys, meant to power heavy appliances. Selecting the right power output is the first thing while looking for a generator. The best way is to make a list of all the devices you want to power at your home. Find out the starting and running wattage of each machine and then calculate the total. Let’s look at examples for RV and home power calculation charts.
|Appliances||Starting Wattage||Running Wattage|
|1/2 HP Furnace||2350||875|
|1/2 HP Well Pump||2000||900|
|1/2 HP Sump Pump||2000||900|
The starting wattage of all the appliances is 12,350 watts, and the running wattage is 6,475 watts. In this situation, you would need a generator with a running wattage of a maximum of 7,000 watts. It is best to add some cushion before buying a generator so you can adjust any extra load on your generator. Now you know how to calculate the wattages. You can edit the table according to your needs.
|Appliances||Starting Wattage||Running Wattage|
|10000 BTU Air Conditioner||2000||700|
|Laptop and Phone Charger||500||500|
Please note that the starting wattage in the example above is 7,170 watts, and the running wattage is 5,470 watts. In such a situation, a generator with 6,000 running watts will serve the purpose for you. You may have different needs than the one listed above. The purpose of these charts is to help you calculate your wattage needs and assist you in buying the best generator.
Apart from a 50 Amp plug, you also need power outlets to manage other appliances and power extensions. Your generator must have a 3-leg outlet, car charger outlet, USB outlet, and 2-leg output.
Your generator must have a control panel to assist you in operating it. A fully advanced control panel will tell you about the working condition of the generator, total hours used, wattage drew, and other readings. You will also find buttons and controls on the control panel.
Portable generators are better than standby generators in the sense that they are movable.
50 amp portable generators are very large and heavy, but they come with wheels and folding handles for effortless transportation.
The heaviest 50 amp generator on our list is the CAT RP12000E. It weighs 350 pounds, but it includes durable wheels, folding handles, and a lifting eye for easy mobility.
Single Fuel or Dual Fuel
You can either select a single fuel portable generator or a dual fuel portable generator. But dual fuel generators give you the benefits of both gas and propane at the same time. So, it is better to select a dual fuel generator either for homes, construction sites, or camping.
Most of the 50 amp portable generators feature recoil and electric start options; however, some units also include a remote start. If it is not easy for you to turn on the generator manually, buy a unit featuring a remote start.
Tank Capacity and Runtime
Always find a 50 amp generator with a big fuel tank. Take the example of CAT RP12000E. It has a 13.2-gallon gas tank, but it is not fuel-efficient, so it fails to give high runtime. On the other hand, Westinghouse WGen9500DF has a decent fuel tank of 6.6 gallons that gives 17.5 hours of runtime at quarter load.
So, along with a big-sized fuel tank, make sure your 50 amp generator is fuel-efficient.
If you are a resident of California, make sure you are buying a 50 amp generator approved by CARB (California Air Resources Board).
Look for a generator that has the lowest noise rating. Though it is not directly related to the generator’s performance, it is related to your peace of mind. You don’t want your neighbors to curse you for disturbing their sleep. You can also use mufflers/silencers to reduce the exhaust sound of your generator.
An ideal generator will offer you safety from working hazards such as voltage surge, low oil and fuel, protection from overloading, and overheating. The frame material, grounding, and generator cover make your experience safe.
Don’t ignore a generator with a warranty. It will help you save hundreds of bucks in case your generator starts troubling you after purchasing it. Hence the warranty is vital. It is also important to read the terms and conditions associated with the warranty.
The last thing to consider is price. Don’t overspend too much but be generous while you are buying a generator. A generator is a long-term investment. The safety of your family, appliances, and generator depends on it. Hence, don’t compromise on quality by saving a couple of hundred bucks.
Ease of Maintenance
Make sure your heavy-duty generator is easy to maintain. It must be easy to fill and drain the oil or fuel. Also, your generator must have a VFT data center to schedule routine maintenance easily.