WEN 56477i - 4000/4800W Inverter Generator
The WEN 56477i is a compact and lightweight inverter generator with a rated wattage of 4,000 W and a starting wattage of 4,800 W. (Read full specs)
Page Content
Description
Zoom on the WEN 56477i
In summary, the WEN 56477i is a compact and lightweight portable inverter generator especially useful for:
- RV travellers looking for even more independence
- Occasional participants of outdoor events, competitions, concerts and festivals
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, and the extra features it benefits from.
Power & Run Time
The WEN 56477i's core is the 224 cc OHV 4-stroke engine, which runs on gasoline. With an output of 120V, it provides a running wattage of 4,000W and a peak wattage of 4,800W. Furthermore, the parallel capability (parallel kit not included) offers the advantage of increasing power output when connected to another similar or compatible unit, delivering expanded energy capacity and flexibility for various applications.
At a noise rating of 62 dBA (just slightly more noisy than background music), the inverter generator is started via a manual recoil starter system.
With a full tank, the 56477i can operate for around 7 hours at 50% load (fuel consumption around 0.27 GPH), thanks to its fuel capacity of 1.9 gallon.
With a <1.2% Total Harmonic Distortion (THD), the 56477i delivers a clean sine wave—essential for safeguarding your delicate electronics when plugged into its AC outlets.
Outlets
The control panel features 5 AC outlets as follows:
Moreover, it presents 3 DC outlets: there's a 12V 8A (cigarette lighter style) receptacle allowing you to easily charge your batteries and two 5V USB ports (USB-A) with which charging of electronics like mobile phones and tablets is made convenient.
Featuring a TT-30R receptacle (TT for 'Travel Trailer'), this WEN generator is RV Ready, designed specifically for use with recreational vehicles.
Portability
The WEN 56477i's characteristic encased inverter generator design (L23.8 x W12.6 x H22.1 in) provides an aesthetic advantage and contributes to quieter operation compared to any ordinary, open frame product. The design follows the contemporary trends and is perfect for recreationally generating power.
The 56477i can be taken anywhere with you, thanks to its weight of 72.7 lbs. Moreover, its set of 2 wheels and its telescopic handle will allow you to easily shift it once it's on the ground.
Features
The control panel of the 56477i includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the lifetime run hours, frequency, fuel level, voltage and power output.
In addition to this info, light indicators on the device will signal if the generator is ready, the generator is overloaded and the oil level is too low.
The fuel shutoff feature turns off the flow of fuel, allowing for the 56477i to use up the remaining fuel from the carburetor before automatically shutting down. This helps fight the build-up and blockages caused by stagnant fuel inside the carburetor, minimizing maintenance while prolonging the unit’s lifespan.
From a security standpoint, the product offers a low fuel automatic shutdown, an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.
Alongside the standard documentation and an owner's manual (opens in a new tab) for quick setup, the WEN 56477i is bundled with additional accessories: oil, tool kit and funnel.
Product Video
The WEN 56477i versus other generators
The following charts are provided to give you an idea of how some of the key specs of the WEN 56477i compare to inverter generators of similar power (between 3500 and 4500 W).
- In terms of its dry weight, the WEN 56477i stands at only 72.7 lbs, meaning that is one of the lighter inverters of the 3500-4500 rated wattage category If weight is your top priority, one of the champions in this power category is the WEN 56432iX, weighing just 52.9 pounds.
- At 62 dBA, this inverter generator's noise rating is in line with the expected average for devices within its type and power category. If you are concerned with noise, check out the Westinghouse iGen5000DF, which is one of the least noisy generators in its power range, with a noise rating of just 52 dBA.
- As for its autonomy, the 56477i, with an autonomy of around 7 hours at a 50% load, is placed on the low end among the generators of its kind. If prolonged run time is essential to your needs, you could consider the Firman W03663OF, which offers one of the highest autonomy among devices with similar power output, lasting around 18 hours.
- Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. Among generators of similar power, this inverter generator stands out with a better fuel efficiency than most, with consumption rates around 0.27 GPH (gallon per hour) at 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.23 GPH, the Westinghouse iGen5000DF is a device you could look out for.
Price comparison
As you can see from these interactive charts, when compared to other 3500-4500W inverter generators, the WEN 56477i 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
- Inexpensive
- RV Ready
- Parallel capable
- Inverter
- Lightweight (72.7 lbs)
- Fuel efficient
- Acceptable noise (62 dBA)
- No electric start
- Relatively low run time
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes, cable not included |
| RV ready | Yes |
| Fuel | Gasoline |
| Engine | 224 cc OHV 4-stroke |
| Starting system | Recoil |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz, DC: 12V |
|---|---|
| Running watts | 4,000 W |
| Starting watts | 4,800 W |
| Running amps | 33.3 amps |
| Peak amps | 40 amps |
| Run time @50% load | 7 h |
| Run time @25% load | Unknown |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 1x 12V 8A (cigarette lighter style) 2x 5V USB port (USB-A) |
| Data center | Power output, fuel level, lifetime run hours, voltage and frequency |
| Indicators | Low oil, overload and output ready |
| Fuel tank | 1.9 gal |
| Fuel gauge | Digital |
| Weight | 72.7 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 23.8 x 12.6 x 22.1 in |
| Noise (lower limit) | 62 dBA |
| THD | < 1.2% |
| Compliance | EPA |
| Security | Low oil, overload and low fuel protection |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Oil, funnel, and tool kit |
| Country of origin | China |
| UPC | 044459564775 |
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.
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 56477i 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 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?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Refrigerator (energy star) | 192 | 1192 |
| Hair dryer | 1800 | 1900 | |
| Vacuum cleaner | 1075 | 1175 | |
| Radio | 100 | 100 | |
| Cell phone charger | 20 | 20 | |
| Total | 3187 W | 4187 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Electric grill | 1650 | 1650 | |
| Set of 5 LED light bulbs | 55 | 55 | |
| Total | 3185 W | 3605 W | |
| For work | Table saw | 1800 | 4500 |
| Drain cleaner | 250 | 250 | |
| Total | 2050 W | 4750 W |
Couldn't find the right answer for you? Ask your own question.


