Guide to 50 Amp Generators

Portable generators with 120/240V 50A (14-50R) receptacles and a list of other ports (L14-30R, L5-30R, 5-20R, 12VDC, etc.) are large, sturdy, and powerful units, capable of providing plenty of energy over a longer period of time.

50 Amp portable generators are often used as RV generators, camping generators, in emergencies, during blackouts and outages, on construction sites, and similar. They are usually powered by gas or gas/propane combination (dual-fuel models), with some larger industrial/commercial models featuring diesel engines.

Updated: April 10, 2024.

On This Page:

Intro to 50 Amp Portable Generators Westinghouse WGen9500TFc DuroMax XP12000EH Champion 100111 A-iPower SUA12000E Pulsar G12KBN Maintenance and Safety Frequently Asked Questions (FAQ) Few Final Words

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Intro to 50 Amp Portable Generators

50 Amps portable generators are balanced designs offering plenty of power (up to 10kW/12kW, sometimes even more) and are well suited for RVs, camping, home emergency situations, and similar.

Also, 50 Amp portable generators are heavy units, weighing 220+ (100+ kg) easily, and they can't be carried around by a single person - 'portable generator' means that they have wheels and can be towed/pushed by an adult, ATV, truck, car or similar vehicle.

In order to operate properly, these units must be maintained as recommended by their manufacturers - always keep the Owner's Manual close and if unsure about something, check it first.

No matter how user-friendly modern power generators are, they are not just 'plug-and-play' devices.

When trying to find 'the best' 50 Amp portable generator, many details determine which unit is actually 'the best' one. Since these details often depend on personal requirements, needs, and habits, it is rather hard to find the best models to suit everyone.

Nonetheless, with so many models on the market, some of them do stand out. Here is our list of the Top 5 best power generators with 120/240 Volts 50 Amp power outlets (14-50R) suitable for powering RVs and all other similar applications.

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.

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Westinghouse WGen9500TFc Tri-Fuel Portable Power Generator

The Westinghouse WGen9500TFc Tri-Fuel Portable Generator is a versatile and powerful unit designed for a variety of applications, from emergency home backup to outdoor recreational use.

The unit features a robust 457cc 4-Stroke OHV Westinghouse Engine that can deliver 9500 running watts and 12500 starting watts on gasoline, 8500/11200 watts on propane, and 7500/9500 watts on natural gas.

Obviously, this generator stands out for its tri-fuel capability, allowing users to switch seamlessly between gasoline, propane, and natural gas without needing to shut off the unit.

Westinghouse WGen9500TFc features a Push-Button Electric Start and a remote start key fob for added convenience, allowing the users to start a generator even from a warm bed when camping or RVing. However, just in case, the unit also features a manual recoil start.

Note: the package also contains a battery float charger - when the unit is not in use and is stored for a longer period, use the battery charger to keep the starting battery charged.

The unit also includes a carbon monoxide (CO) sensor for safety, automatically shutting down if dangerous CO levels are detected. Westinghouse WGen9500TFc also comes with other safety features, including automatic low-oil shutdown and overload protection.

The unit's runtime is up to 12 hours of runtime on a 6.6-gallon (25 liters) gas tank at 25% load, 8 hours @50% load using gas, and 7 hours @50% load using 20 lbs propane tank.

The physical dimensions of the Westinghouse WGen9500TFc are (L x W x H) 27.2 x 26.1 x 26.5 inches (~69 x 66.3 x 67.3 cm) and it weighs 215 pounds (~97.5 kg) dry.

Westinghouse WGen9500TFc is portable thanks to a foldable handle, a pair of transport wheels, and a lifting hook.

The unit offers a range of outlets for different needs, including:

• 120/240V 14-50R
• 120/240V L14-30R
• 2x Duplex 120V 5-20R
• ST Switch

Note: all outlets feature rubber covers.

The VFT Data Center provides real-time updates on voltage output, frequency, and lifetime hours, facilitating maintenance and monitoring.

The noise levels are relatively low for a generator of this size and power, operating at around 74 dB.

Westinghouse WGen9500TFc comes with a 3-year limited residential warranty, a 1-year limited commercial warranty, and Lifetime Technical Support.

This generator's tri-fuel capability, combined with its power output and safety features, make it an excellent choice for those needing a reliable power source in various situations.

For more reviews and recommendations, feel free to follow the Westinghouse WGen9500TFc Tri-Fuel Portable Power Generator Amazon link (the link opens in the new window).

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DuroMax XP12000EH Dual Fuel Portable Generator

DuroMax XP12000EH Dual Fuel Portable Generator is powered by an 18HP 457cc Duromax engine, providing 9500 running watts when powered by gas, 8075 running watts when powered by propane, 12000 starting watts when being powered by gas and 10200 starting watts when powered by propane.

DuroMax XP12000EH features an 8.3-gallon (~31.4 liters) fuel tank, ensuring a runtime of 10 hours at 50% throttle using gas and 5 hours at 50% throttle using a 5-gallon propane tank. The muffler design ensures an acceptable noise level of 74 dB at a 23 ft (~7 m) distance.

The engine features both recoil and electric start, automatic idle control, and a standard low oil shutoff system. Also, the unit is EPA and CARB approved for use in all 50 states.

DuroMax XP12000EH weighs 236 pounds (~107 kg) and can be loaded manually by four adults in the back of a truck - with great care, of course. The frame is very strong and features collapsible handles, while a pair of wheels features rubber tires.

Physical dimensions are 40 x 29 x 27.5 inches (~101.6 x 73.7 x 70 cm).

Power outlets include:

• 120/240V 50A (14-50R),
• 120/240V 30A (L14-30R),
• 120V 30A (L5-30R),
• 2x 120V 20A (5-20R).

DuroMax XP12000EH allows the user to operate the generator at both 120V and 240V simultaneously or at 120V only with full power.

DuroMax XP12000EH features a great selection of power outlets, may be powered by both propane or gas, it is a rather strong generator (9500/12000W), very user-friendly, etc. Practically, the only drawback is the fact that power outlets are not covered.

For more reviews and recommendations, feel free to check DuroMax XP12000EH Dual Fuel Portable Generator Amazon link (link opens in the new window).  

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Champion 100111 15000/12000 Watt Portable Generator

Champion 100111 15000/12000 Watt Portable Generator is powered by a 717cc V-Twin Champion engine providing 12000 Running Watts and 15000 Starting Watts.

The engine features an electric start with an easily accessible battery allowing the user to recharge the battery when the unit is stored and to replace it when needed.

The physical dimensions of the unit are (L x W x H) 33.9 x 31.1 x 33.1 inches (~86.1 x 79.0 x 84.1 cm) and it weighs ~330 pounds (~150 kg) dry.

Due to its size and weight, the unit features a pair of 12-inch (~30 cm) transport wheels and a lifting hook - thanks to the foldable handles, the unit can be transported via wheels to shorter distances by a single adult.

Fuel tank capacity is 10.9 gallons (~41.3 liters), while oil capacity is 1.4 qt. - engine comes with an automatic low oil shutdown system.

Maximum runtime on a 50% load with a full tank is ~9 hours, while noise levels are at ~78 dB.

The list of outlets includes:

• 120/240V 50A (14-50R),
• 120/240V 30A Locking (L14-30R),
• 120V 30A Locking (L5-30R),
• 2x GFCI 120V 20A Duplex (5-20R).

 All outlets feature a protective cover - they protect from dust and similar dirt, but they are not intended to protect outlets during rain and similar!

Champion 100111 power generator also features 5-Mode Intelligauge, displaying session & total runtime, volts, frequency, and power output.

The unit comes with a 3-year limited warranty.

Champion 100111 power generator is EPA certified and CARB compliant.

If You are looking for a rather powerful power and versatile power generator, consider this unit - there are perhaps more compact, lighter, and even cheaper units, but what You pay is what You get.

For more reviews and recommendations, feel free to check the Champion 100111 15000/12000 Watt Portable Generator Amazon link (link opens in the new window).   

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A-iPower SUA12000E Gasoline Powered Generator

A-iPower SUA12000E Gasoline Powered Generator is powered by a 459 cc engine, providing 9000 running watts and 12000 starting watts, and with its 7-gallon (26.5 liters) tanks, it features 9-hour runtime at 50% throttle.

A-iPower SUA12000E weighs 'only' 221 pounds (~100.1 kg), and it can be loaded and unloaded on a truck by four adults - again, with great care, of course. Also, the unit features a pair of transport never-flat wheels and collapsible handles.

The unit features standard recoil and electric starting systems.

The noise level is at 78 dB.

Power outlets include:

• 120/240V 50A (14-50R),
• 120/240V 30A (L14-30R),
• 4x GFCI 120V 20A (5-20R),
• DC 12V.

A-iPower SUA12000E comes with a wide variety of covered power outlets. Also, it comes with a 2-year residential and a 1-year commercial warranty.

A-iPower SUA12000E power generator is suitable to power even larger RVs, but it is also very suitable as a construction site power generator, for camping, in emergencies, and similar.

For more reviews and recommendations, feel free to check A-iPower SUA12000E Watt Gasoline Powered Generator Amazon link (link opens in the new window).  

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Pulsar G12KBN Heavy-Duty Portable Dual Fuel Generator

The Pulsar G12KBN Heavy Duty Portable Dual Fuel Generator is powered by a 457cc 4-stroke, air-cooled, internal combustion engine, ensuring 12000 peak watts and 9500 running watts on gasoline, and 9500 starting watts and 8550 running watts on propane.

Its dual-fuel capability allows for easy switching between gasoline and propane, enhancing flexibility.

Pulsar G12KBN features an electric start for convenience and a manual recoil start system as a backup.

The runtime is up to 12 hours of operation @50% load on an 8-gallon (~30.3 liters) tank. The engine is protected by a low-oil automatic shutdown system.

The physical dimensions are (L x W x H) 28.5 x 21.8 x 22.2 inches (~72.4 x 55.4 x 56.4 cm), and it weighs 209 pounds (~95 kg).

Noise levels are at ~74 dB, which is acceptable for open-frame power generators of this power level.

The list of receptacles includes:

• 120/240V 50A (14-50R)
• 120/240V 30A (L14-30R)
• 4x 120V 20A (5-20R)
• 12V 8.3A DC

Pulsar G12KBN is one of the rare 50 Amps power generators that feature a 12V DC source, which should be used only for charging lead-acid batteries.

While the controls are easy to understand and use, one must note that receptacles don't have rubber covers.

Pulsar G12KBN comes with a 1-year limited warranty.

For more reviews and recommendations, feel free to check the Pulsar G12KBN Heavy Duty Portable Dual Fuel Generator Amazon link (the link opens in the new window). 

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Maintenance and Safety

Regular maintenance and strict adherence to safety precautions are paramount when operating 50 Amp portable generators, ensuring both the efficiency and longevity of the equipment, as well as the safety of its operators.

Regular maintenance, including checking oil levels, air filters, and spark plugs, can significantly extend the life of a generator, prevent breakdowns, and ensure it runs efficiently when needed.

Safety precautions are equally important; they involve operating the generator in well-ventilated areas to avoid carbon monoxide poisoning, using heavy-duty extension cords designed for outdoor use, and never operating the generator in wet conditions to avoid electrocution risks.

Together, these practices not only safeguard the equipment but also protect users from potential hazards, making them essential for anyone relying on a portable generator for power.

In short, keep the Owner's Guide close by and follow maintenance charts provided by the manufacturers. If something should go wrong with the unit, which is not maintained properly, claiming the warranty might be a problem. Just my 2c.

  

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Frequently Asked Questions (FAQ)

Here are some of the most common Frequently Asked Questions (FAQ) about 50 Amp and other power generators.

Before going into more details about 50 Amp 120/240 power generators, how to connect them to RVs, and the differences between 30 Amps and 50 Amps RVs, please watch this video:

What size generator do I need for 50 Amps?

In theory, one needs a 12000W power generator to run 50 Amps service provided by 120/240V 50A (14-50R) receptacles:

50A x 120V x 2 = 12000W

or

50A x 240V = 12000W

Remember, the 120/240V 50A (14-50R) plug features four prongs - 2x 120V, Ground, and Neutral Wires, and can be used as 120V and 240V.

Is there a generator with a 50 Amp plug?

Yes, there are numerous power generators with 120/240V 50A (14-50R) receptacles that accept 50 Amp plugs (14-50P).

What will a 50 Amp generator run?

The list of tools and appliances depends on the actual wattage that the power generator may provide, but 10-15kW units can power very large RVs and can even be used to power homes during blackouts - when powering homes, be sure to monitor power output regularly, because even such units may be overloaded ...

Will a 9000-watt generator run a 50 Amp camper?

Yes, but You may overload the generator - make a list of devices and appliances in the RV and try not to use them all simultaneously, at least not the most energy-hungry ones.

Will a 30 Amp generator run a 50 Amp camper? NEMA 120/240V 14-50R vs. NEMA 120/240V L14-30R

Yes, 30 Amp generator can be hooked to the 50 Amp camper using suitable adapter, but just be aware that the maximum usable output power of such a power generator is:

120V x 30A = 3600W

Turn on the AC unit, microwave, and a few smaller devices; the next appliance, for example, the toaster, will overload the generator.

On the other hand, 120/240V 14-50R receptacle is able to trasfer 50A @240V which is 12kW, much more than 3600W supported by NEMA 120/240 L14-30R.

Can I plug my 50 Amp RV into a generator?

Yes, but You need a special 50 Amp generator cord.

How to make a 50 Amp generator cord?

IMHO, go online and buy a 50 Amp generator cord from a reputable brand.

The price difference between getting the required receptacle, plug, and cable and ordering a factory-made cord is negligible - actually, it may be even more expensive to try to make a custom-built 50 Amp generator cord.

Is a 50 Amp generator better than 30 Amp?

It depends on what "better" means - power generators with 120/240V 50A (14-50R) receptacles may transfer more power, but they are open-frame, classic power generators, while smaller 30 Amp power generators are very often inverter power generators with enclosed construction, making them less noisy and more energy efficient...

Will 50 Amps power a house?

Since a power generator with 120/240V 50A (14-50R) receptacles practically means 120V x 100A, 12kW or so power generators may be used to power the house almost completely.

But, they should be connected properly, or else ...

How many Amps is a 7500 Watt generator?

7500W power generator is able to provide:

I (A) = 7500W / 120V = 62.5A

I (A) = 7500W / 240V = 31.25A

If the 7500W generator supports 120V/240V operation, it is capable of providing 62.5A @120V or 31.25A @240V.

  

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Few Final Words

Power generators, even the smallest ones, should be operated outside - these units create fumes that contain very poisonous carbon monoxide, which is a colorless and tasteless gas.

Also, 50A portable generators are not toys despite being designed as user-friendly units. Keep the unit's Owner Guide close by, and if unsure, check the instructions and/or contact support (usually via the manufacturer's official website).

And whatever You do, it is your own responsibility. For short, stay safe.