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WEN GN400iX - 3500/4000W Open Frame Inverter Generator

The WEN GN400iX is a compact and lightweight open frame inverter generator with a rated wattage of 3,500 W and a starting wattage of 4,000 W. (Read full specs)

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WEN GN400iX
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Price history for the WEN GN400iX

Current price is in the high range.
Lowest price $486.86
Highest price $498
Current price $498
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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
  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go

Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.

Power & Run Time

Featuring a 212 cc OHV 4-stroke engine, the WEN GN400iX operates using gasoline, providing 120V, with a running wattage of 3,500W and a starting wattage of 4,000W. Moreover, the parallel capability (WEN Parallel Connection Kit (opens in a new tab) not included) enables increasing of power output when paired with another similar or compatible unit, providing increased energy capacity and versatility for a wide range of needs.

Featuring a noise rating of 67 dBA (less noisy than a normal conversation), the inverter generator utilizes a manual recoil starter system for ignition.

The GN400iX boasts a fuel tank capable of holding 1.85 gallon, allowing it to run continuously for around 7 hours at 50% load (with fuel usage averaging around 0.26 gallons per hour).

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

Outlets

The control panel features 3 AC outlets as follows:

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

Moreover, it comes equipped with 2 DC outlets: there's two 5V USB ports (USB-A) with which charging of electronics like mobile phones and tablets is made convenient.

This WEN generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

At L19.8 x W13.8 x H18.9 in, the standard open frame design of the WEN GN400iX delivers stability alongside easy maintenance access to components and good air cooling. This type of design is ideal for tough environments and heavy outdoor use.

Weighing 70 lbs, the GN400iX is easily handled, ensuring it can go 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 its oil levels are insufficient, the generator is overloaded and the generator is ready, you will be informed by the featured light indicators.

The built-in fuel gauge of the inverter generator ensures simple and quick gas level assessments.

Security-wise, this product benefits from an overload protection (circuit breaker), an automatic low oil shut-off and a low fuel automatic shutdown, 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.

Beyond the standard documentation and an owner's manual (opens in a new tab) to assist with setup, the WEN GN400iX ships with supplementary accessories: funnel, tool kit and 2 altitude kits. An official storage cover is also available, as a separate purchase.

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 inverter generators of similar power (between 3000 and 4000 W).

  • In terms of its dry weight, the WEN GN400iX stands at only 70 lbs, meaning that is one of the lighter inverters of the 3000-4000 rated wattage category 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.
  • As this inverter generator has its lowest possible noise of 67 dBA, it should be considered noisier compared to its peers of a comparable running wattage. If noise emissions are one of your priorities, you may want to take a look at the Westinghouse iGen5000DF. It's one of the quietest options among generators of similar power, rated at 52 dBA.
  • Regarding its runtime, the GN400iX operates for around 7 hours at a 50% load, positioning it at the lower spectrum among comparable inverters. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Firman W03663OF, as it provides around 18 hours.
  • While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. With an estimated gasoline consumption of 0.26 GPH (gallon per hour) at 50% load, this inverter generator is among the more fuel-efficient of the products in the above-mentioned wattage range. 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 inverter generators, the WEN GN400iX 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
  • RV Ready
  • Parallel capable
  • Inverter
  • Lightweight (70 lbs)
  • Fuel efficient
WEAKNESSES:
  • No data center
  • No electric start
  • On the noisy side (67 dBA)
  • 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
Parallel capableYes, cable not included
RV readyYes
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil
Warranty2 years
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts3,500 W
Starting watts4,000 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
Weight70 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%
ComplianceEPA
SecurityLow oil, overload and low fuel protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, and 2 altitude kits
UPC044459014003

We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.

Spec Improvement×

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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.
Item Running Watts Starting Watts
At home Electric fry pan 1500 1500
Refrigerator (energy star) 192 1192
Vacuum cleaner 1075 1175
Cell phone charger 20 20
Total 2787 W 3787 W
For camping RV AC (11,000 BTU) 1010 1600
RV refrigerator 180 600
Electric fry pan 1500 1500
Radio 100 100
Total 2790 W 3380 W
For work Grinder 1400 2500
Demolition hammer 1260 1260
Bug zapper 80 80
Total 2740 W 3840 W

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