Cat INV4000E Spec Review

The Cat INV4000E is a compact portable inverter generator with a rated wattage of 3200 W and a starting wattage of 4000 W.

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Picture 1 of the Cat INV4000E
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Description

Take your outdoor adventures to the next level with the Cat® INV4000 E portable inverter generator. Inverter technology provides a high-quality power that's safe for your sensitive electronics. Cat® CO DEFENSE™Carbon Monoxide Sensing & Shutdown technology keeps you, your family, and friends safe. (source: Cat)

Zoom on the Cat INV4000E

In a nutshell, the Cat INV4000E is a compact portable inverter generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • DIYers who wish to improve their efficiency with tools
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Professionals who want to be able to deliver results, even during a power failure

In the sections ahead, the power characteristics, availability of various outlets, the portability and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Cat INV4000E in use

The Cat INV4000E

The Cat INV4000E's core is the 212 cc OHV 4-stroke engine, which runs on gasoline. With an output of 120V, it provides a running wattage of 3200W and a peak wattage of 4000W. Moreover, since it is parallel capable (parallel kit not included), its power may be doubled if linked to a second compatible unit.

This inverter generator features a conventional pull-start mechanism, but also a convenient and easy-to-use electric starter (battery included).

The fuel capacity of 2.1 gallons allows the INV4000E to operate for around 8 hours at 50% load with a full tank (fuel consumption around 0.26 GPH).

Delicate electronics can be plugged in an AC outlets safely, as the INV4000E generates a clean sine wave, reaching a <3% Total Harmonic Disruption (THD).

Outlets

The control panel features the following 2 AC outlets:

Duplex 120V 20A (5-20R) GFCI

Furthermore, it has 3 DC outlets: there's a 12V 8A receptacle allowing you to easily charge your batteries and two 5V USB ports allowing you to conveniently charge electronics such as mobile phones and tablets.

Portability

The Cat INV4000E's characteristic encased inverter generator design (L25.4 x W18.5 x H20.4 in), provides an esthetical advantage over any ordinary, open frame product. The design follows the contemporary trends and is perfect for recreationally generating power.

Since the generator weighs 103.6 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). However, its challenging mobility is solved by a wheel kit and a folding handle, which will ease its displacement, once it is on the floor.

Features

Panel of the Cat INV4000E

The INV4000E's control panel

The control panel of the INV4000E includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the lifetime run hours, remaining run time, voltage, fuel level and power output.

In addition to this info, several light indicators serve to show you when the generator is ready, its oil levels are insufficient and the generator is on overload.

Thanks to a built-in fuel gauge, the inverter generator allows you to quickly, conveniently and easily check the gas level at a glance.

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

The INV4000E also benefits from Cat’s CO DEFENSE™ carbon monoxide shutdown. This system monitors the accumulation of CO gas while the generator is running and will shut off the engine if the levels become dangerously high. It’s a welcomed additional security feature, but don’t forget to always take your generator outside.

With the basic documentation and an owner's manual, letting you start the generator quickly, the Cat INV4000E also comes with several accessories, including: oil, battery charging cables, battery charger, tool kit and funnel.

Emissions

The Cat INV4000E 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, so it is adequate for use in forested areas.

The Cat INV4000E versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Cat INV4000E compare to generators of similar power (between 2500 and 3500 W).

  • With a dry weight of 103.6 pounds, the Cat INV4000E finds itself in the expected weight range for generators able to produce between 2500 and 3500 rated watts. If weight is your top priority, one of the champions in this power category is the WEN GN400i, weighing just 66.1 pounds.
  • The INV4000E’s autonomy is somewhat low end compared to devices of its power range, as it reaches only around 8 hours at 50% load on a full tank. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Honda EB4000, which is able to run for around 16 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. 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 you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4200, which boasts with a gas consumption of only 0.17 GPH, may be the right generator for you.

The bottom line

STRENGTHS:
  • CO DEFENSE™ technology
  • Several accessories included
  • Electric start
  • Parallel capable
  • Inverter
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (103.6 lbs)
WEAKNESSES:
  • No remote start
  • Relatively low run time

Do you own the Cat INV4000E 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 readyNo
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil, Electric

Power

VoltageAC: 120V 60 Hz, DC: 12V
Running watts3200 W
Starting watts4000 W
Running amps26.7 amps
Peaks amps33.3 amps
Run time @50% load8 h
Run time @25% loadN/A

Features

GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R) GFCI
DC outlets1x 12V 8A receptacle
2x 5V USB port
Data centerPower output, fuel level, lifetime run hours, remaining run time and voltage
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 2.1 gal
Fuel gaugeYes

Misc

Weight103.6 lbs
Dimensions (L x W x H)25.4 x 18.5 x 20.4 in
Noise (lower limit)N/A
THD< 3%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, battery charger and battery charging cables
Warranty3 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.

About Cat

Caterpillar Inc., often abbreviated as simply CAT, is an American engineering corporation, whose product range includes machinery, engines, financial products, mobile phones and of course, power generators. The company, founded in 1925, is one of the backbones of the US Dow Jones index and is placed among the Fortune 500 list. While CAT mainly focuses on industrial scale generators, it also provides a wide range of portable and household-scaled devices. A majority of the industrial-scale CAT products is made in the USA. However, the production of many of their household products is reported to be outsourced overseas.

Warranty Information

The Cat INV4000E is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Cat generators, please consult Cat's warranty policies. Alternatively, you can also contact their Customer Support: 1-844-PWR-ME-UP (844-797-6387).

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