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WEN GN400iX Spec Review

The WEN GN400iX is a compact and lightweight open frame inverter generator with a rated wattage of 3500 W and a starting wattage of 4000 W.

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Description

Zoom on the WEN GN400iX

The WEN GN400iX is the newer version of the GN400i. It's 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
  • Handcrafting enthusiasts who wish to work on-the-go
  • Homeowners in need of an emergency backup power for their essentials
  • Camping and tailgating hobbyists looking for a portable power source

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The WEN GN400iX houses a 212 cc OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 3500W along with a peak wattage of 4000W. Moreover, since it is parallel capable (WEN Parallel Connection Kit (opens in a new tab) not included), its power may be doubled if linked to a second compatible unit.

The inverter generator is rated for a noise of 67 dBA (less noisy than an office). Its starting mechanism is based on a simple traditional pull-start mechanism.

With a fuel capacity of 1.85 gallon, the GN400iX may run for around 7 hours at 50% load with a full tank (fuel consumption around 0.26 GPH).

The GN400iX produces a clean sine wave: thanks to a <1.2% Total Harmonic Disruption (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel provides the upcoming 3 AC outlets:

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

Additionally, it features 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 design of the WEN GN400iX is a typical, open frame, with the dimensions of L19.8 x W13.8 x H18.9 in, offering support and stability and enabling the possibility of raising it above ground level. The design is ideal for rough environments and demanding outdoor use.

With a dry weight of 66.1 lbs, the GN400iX can easily follow you wherever your power needs are. In addition, it is even easier to grab and move the generator around thanks to its open frame design.

Features

Panel of the WEN GN400iX

The GN400iX's control panel

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

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.

Security-wise, this product benefits from a low fuel automatic shutdown, an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

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 GN400iX also comes with some accessories: funnel, 2 altitude kits and tool kit are included.

Emissions

The WEN GN400iX 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 and thus, may be used in forested areas.

The WEN GN400iX versus other generators

The following charts are provided to give you an idea of how some of the key specs of the WEN GN400iX compare to generators of similar power (between 3000 and 4000 W).

  • Regarding its weight, the WEN GN400iX only weighs in at 66.1 pounds, which means it's one of the lightest generators in the 3000-4000 rated wattage range.
  • This inverter generator has a somewhat average expected noise for its power range, rated at 67 dBA. If noise emissions are important to you, one of the least noisy generators of this power range is the Cat INV4000E with only 51 dBA.
  • Autonomy-wise, with around 7 hours on a full tank at a 50% load, the GN400iX is on the low end when compared to other generators of a similar power output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Predator 4375, reaching around 16 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 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 you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen4200, with a fuel consumption of 0.17 GPH could be in your good books.

Price comparison

As you can see from this interactive chart, when compared to other 3000-4000W generators, the WEN GN400iX is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • CO Watchdog
  • Several accessories included
  • RV Ready
  • Parallel capable
  • Inverter
  • Lightweight (66.1 lbs)
  • Fuel efficient
AVERAGE SPECS:
  • Acceptable noise (67 dBA)
WEAKNESSES:
  • No data center
  • No electric start
  • Relatively low run time

Do you own the WEN GN400iX 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
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts3500 W
Starting watts4000 W
Running amps29.2 amps
Peak amps33.3 amps
Run time @50% load7 h
Run time @25% loadUnknown
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 tankSteel, 1.85 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)67 dBA
THD< 1.2%
EmissionsCARB, EPA
SecurityLow oil, overload and low fuel protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, and 2 altitude kits
Warranty2 years

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 GN400iX 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

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