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WEN DF402iX - 3500/4000W Dual Fuel Open Frame Inverter Generator

The WEN DF402iX is a compact and lightweight open frame dual fuel inverter generator with a rated wattage of 3,500 W and a starting wattage of 4,000 W.

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Set an alert for the WEN DF402iX - Current lowest price: $528.00
Price History
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Price history for the WEN DF402iX
Latest updates:
  • $528.00 - November 15, 2023
  • $517.76 - November 12, 2023
  • $518.80 - November 9, 2023
  • $519.84 - November 3, 2023
  • $520.88 - October 31, 2023
  • $521.92 - October 28, 2023
  • $522.97 - October 24, 2023
  • $524.02 - October 21, 2023
Data source: walmart.com
Since: March 14, 2023
  • Highest Price: $536.75 - March 14, 2023
  • Lowest Price: $517.76 - November 12, 2023

Description

Zoom on the WEN DF402iX

In a nutshell, the WEN DF402iX is a compact and lightweight portable inverter generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Amateur DIY lovers
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating buffs looking to enhance their experience

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The dual-fuel technology of the WEN DF402iX allows for an output of 120V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 3,500W and a starting wattage of 4,000W. If propane-powered, it gives 3,200 rated watts and 3,600 starting watts. Additionally, as the generator is parallel capable (GNA50i parallel kit (opens in a new tab) not included), it can be linked to a second unit for more power.

This inverter generator gets running thanks to a conventional pull-start mechanism.

The DF402iX, with a fuel capacity of 1.85 gallon, reaches a run time of around 7 hours at 50% load utilizing gasoline (fuel consumption around 0.26 GPH). Alternatively, it can reach a run time of around 9.5 hours (on a 20 lbs tank - propane consumption around 0.49 GPH) with propane.

Delicate electronics can be plugged in an AC outlets safely, as the DF402iX generates a clean sine wave, reaching a <1.2% Total Harmonic Distortion (THD).

Outlets

The control panel features the upcoming 3 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (TT-30R) receptacle

It also sports 2 DC outlets: there's two 5V USB ports (USB-A) with which you may charge electronics, for example mobile phones or tablets, conveniently.

With its TT-30R receptacle (TT as in 'Travel Trailer'), this WEN generator is RV Ready.

Portability

With its dimensions of L19.8 x W13.8 x H18.9 in, the conventional, open frame design of the WEN DF402iX offers stability and allows the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

As the DF402iX's weight is only 66.1 lbs, it can follow you and your power needs anywhere. Moreover, its open frame design makes it incredibly easy to grab the frame in order to change its location.

Features

Panel of the WEN DF402iX

The DF402iX's control panel

When its oil levels are insufficient, the generator is ready and the generator is on overload, you will be informed by the featured light indicators.

The inverter generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

As for its security measures, the device features an automatic low oil shut-off, an overload protection (circuit breaker) and a low fuel automatic shutdown, letting you use it with a peace of mind.

The unit also benefits from WEN's CO Watchdog carbon monoxide detection. This system measures the accumulation of poisonous CO gas while the generator is running. If the level of CO gas gets too high, the CO Watchdog system will automatically shut down the generator.

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the WEN DF402iX, the following accessories are also included: propane hose, 2 altitude kits, tool kit and funnel. An official storage cover is also available, as a separate purchase.

Emissions

The WEN DF402iX is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.

The WEN DF402iX versus other generators

The following charts are provided to give you an idea of how some of the key specs of the WEN DF402iX compare to inverter generators of similar power (between 3000 and 4000 W).

  • Weight-wise, the WEN DF402iX has only 66.1 lbs, which renders it one of the lighter inverter generators which produce 3000 to 4000 rated watts. If you are concerned by weight, one of the champions in the above-mentioned power range is the Pulsar PGD40iSCO, with a dry weight of just 46 pounds.
  • Regarding its autonomy, the autonomy of the DF402iX, reaching around 7 hours at a 50% load, can be considered as low end, compared to other inverters of a roughly equal output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse iGen4500DF, reaching around 15 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. This inverter generator is one of the more fuel efficient models of the aforementioned output range, as its estimated fuel consumption reaches just 0.26 GPH (gallon per hour) at 50% load. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Pulsar PGD40iSCO. With a fuel consumption of as little as 0.22 GPH, it is one of the most efficient generators currently on the market.

Price comparison

As you can see from these interactive charts, when compared to other 3000-4000W dual fuel inverter generators, the WEN DF402iX is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • Dual Fuel
  • CO Watchdog
  • Several accessories included
  • RV Ready
  • Parallel capable
  • Inverter
  • Lightweight (66.1 lbs)
  • Fuel efficient
WEAKNESSES:
  • No data center
  • No electric start
  • Relatively low run time

Do you own the WEN DF402iX and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableYes, cable not included
RV readyYes
FuelDual Fuel (gasoline/propane)
Engine212 cc OHV 4-stroke
Starting systemRecoil
Warranty2 years
VoltageAC: 120V 60 Hz, DC: 5V
Power
GasolinePropane
Running watts3,500 W3,200 W
Starting watts4,000 W3,600 W
Running amps29.2 amps26.7 amps
Peak amps33.3 amps30 amps
Run time @50% load7 h9.5 h
Run time @25% loadUnknownUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outlets2x 5V USB port (USB-A)
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tank1.85 gal
Fuel gaugeYes
Misc
Weight66.1 lbs
Approx. dimensions (L x W x H)19.8 x 13.8 x 18.9 in
Noise (lower limit)Unknown
THD< 1.2%
ComplianceCARB, EPA
SecurityLow oil, overload and low fuel protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, propane hose, and 2 altitude kits
UPC044459994022

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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About WEN

WEN Products, founded by Nick Anton in 1951, is an American power tool manufacturer and distributor, which claims to have a part in the development of modern chainsaw, soldering devices and wet sharpeners, through its research in random orbital technology. The Illinois based company expanded its distribution network to include various power tools, such as presses, drills and of course, power generators. As a distributor, WEN’s portfolio largely consists of branded products of different manufacturers, imported from Asia.

Warranty Information

The WEN DF402iX is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of WEN generators, please consult WEN's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-847-429-9263.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizing calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Toaster oven800800
Total2792 W3792 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Slow cooker270270
Cell phone charger2020
Total2780 W3370 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W
What's the next size up? (Asked July 11, 2023)

You may want to have a look at this list of WEN inverter generators. They all provide over 3,500 running watts.

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