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WEN DF402iX - 3600/4000W 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 3600 W and a starting wattage of 4000 W.

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Price History
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Price history for the WEN DF402iX
Latest updates:
  • $545.39 - November 28, 2022
  • $579.99 - October 22, 2022
Data source: homedepot.com
Since: October 22, 2022
  • Highest Price: $579.99 - October 22, 2022
  • Lowest Price: $545.39 - November 28, 2022

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
  • Occasional participants of outdoor events, competitions, concerts and festivals
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go

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 3600W and a starting wattage of 4000W. If propane-powered, it gives 3200 rated watts and 3500 starting watts. Moreover, since it is parallel capable (GNA50i parallel kit (opens in a new tab) not included), its power may be increased if linked to a second compatible unit.

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

Regarding its running time, the DF402iX, with a 1.85 gallon fuel capacity can operate for around 7 hours at 50% load with a full tank of gasoline (fuel consumption around 0.26 GPH). When using propane, it can run for around 9.5 hours (on a 20 lbs tank - propane consumption around 0.49 GPH).

As the DF402iX produces a clean sine wave, with a <1.2% Total Harmonic Distortion (THD), sensitive electronics may be plugged in the AC outlets safely.

Outlets

The control panel includes the following 3 AC outlets:

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

Furthermore, it has 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

The dimensions of the WEN DF402iX, which are L19.8 x W13.8 x H18.9 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. This type of design is ideal for tough environments and heavy outdoor use.

The DF402iX can be taken anywhere with you, thanks to its weight of 66.1 lbs. Additionally, the generator’s mobility is also improved by its open frame design, as it can be easily grabbed and shifted.

Features

Panel of the WEN DF402iX

The DF402iX's control panel

Some light indicators allow you to instantly see if the oil level is too low, the generator is ready and the generator is on overload.

The inverter generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

As far as security is concerned, the generator can be used with a peace of mind, as it features a low fuel automatic shutdown, an overload protection (circuit breaker) and an automatic low oil shut-off.

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. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the WEN DF402iX also comes with some accessories: 2 altitude kits, propane hose, tool kit and funnel are included. An official storage cover is also available, as a separate purchase.

Emissions

The WEN DF402iX is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor, so it is adequate 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 3500 and 4500 W).

  • As for its weight, the WEN DF402iX weighs only 66.1 pounds, making it one of the lightest inverter generators in the 3500-4500 rated wattage category.
  • 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. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Westinghouse iGen4500DF, as it provides around 15 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This inverter generator, with an estimated fuel consumption of just 0.26 GPH (gallon per hour) at 50% load, is one of the more fuel efficient generators, for the previously mentioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Westinghouse iGen4500DF. With a fuel consumption of as little as 0.23 GPH, it is one of the most efficient generators currently on the market.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W 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
  • CO Watchdog
  • Several accessories included
  • RV Ready
  • Parallel capable
  • Dual Fuel
  • 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
PortableYes
Parallel capableYes, cable not included
RV readyYes
FuelDual Fuel (gasoline/propane)
Engine212 cc OHV 4-stroke
Starting systemRecoil
VoltageAC: 120V 60 Hz, DC: 5V
Power
 GasolinePropane
Running watts3600 W3200 W
Starting watts4000 W3500 W
Running amps30 amps26.7 amps
Peak amps33.3 amps29.2 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
Warranty2 years
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
Freezer8101750
Set of 5 LED light bulbs5555
Cell phone charger2020
Total2877 W3877 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
DVD player350350
Cell phone charger2020
Total2860 W3450 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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