Hyundai 3.3kW / 3300W Inverter Generator, Recoil Start, Pure Sine Wave | HY3900Si
Loading delivery estimate…
*Exact delivery dates are calculated at checkout depending on your delivery postcode.
Hyundai 3.3kW / 3300W Inverter Generator, Recoil Start, Pure Sine Wave | HY3900Si is backordered and will ship as soon as it is back in stock.
Hyundai 3.3kW / 3300W Inverter Generator, Recoil Start, Pure Sine W...
Hyundai 3.3kW / 3300W Inverter Generator, Recoil Start, Pure Sine Wave | HY3900Si is backordered and will ship as soon as it is back in stock.
Product Details
Description
Reliable 3.3kW inverter power for larger caravans, motorhomes and off-grid leisure
When a 2kW generator is not quite enough for your setup, the next step up matters. The Hyundai HY3900Si delivers 3.3kW / 3300W maximum output and 3kW / 3000W continuous from a 144cc four-stroke engine. That extra headroom means you can run a caravan fridge, charge multiple devices, power lighting and still have capacity left over. The pure sine wave output keeps sensitive electronics safe, while the ECO mode stretches your fuel when full power is not needed. At 21.15kg, it is still portable enough for one person to move.
Key Benefits
Enough power to run multiple appliances at once
With 3.0kW continuous output, the HY3900Si handles combinations that smaller generators cannot. Run a fridge, charge your devices and power lighting simultaneously without worrying about overload. Ideal for larger caravan and motorhome setups.
Pure sine wave output for clean, safe power
The inverter technology produces stable electricity with low harmonic distortion. Connect laptops, televisions, games consoles and other sensitive electronics with confidence.
ECO mode for fuel efficiency and reduced noise
When you are drawing less than full load, ECO mode automatically reduces engine speed, reducing noise and giving better fuel economy. This extends the runtime in between refueling.
Industrial blue socket for higher-draw equipment
The HY3900Si features a 16A industrial blue socket for connecting equipment that draws more than a standard connection. The 3-in-1 digital meter lets you monitor output in real time.
Who Is This For?
This generator is ideal for:
- Caravan and motorhome owners with larger power requirements
- Glamping and off-grid leisure setups wanting dependable mid-range power
- Boat owners and marina users needing portable shoreside power
- Garden parties and outdoor entertaining where mains power is not available
- Allotment holders and rural property owners needing seasonal off-grid power
This generator is NOT ideal for:
- Lightweight camping trips where minimum weight matters — the HY2350Si is lighter and quieter
- Extended use where longer runtime is critical
- Users who need electric start convenience — this model uses recoil start only
Specifications
| Assembled Dimensions (H x W x L) | 490 x 460 x 285mm |
| Continuous Output | 3000W |
| Control Panel | 1x 16A industrial blue socket, 1x cigarette lighter, 3-in-1 digital meter, ECO mode, AC Reset |
| EAN | 5059608505016 |
| ECO Mode | Yes |
| Engine Oil | SAE 10W30 |
| Engine Oil Capacity | 400ml |
| Engine Size | 144cc |
| Engine Type | 4-stroke, air-cooled, single-cylinder |
| Frequency | 50Hz |
| Fuel / Power Source | Petrol |
| Fuel Consumption @ 50% Load | Approx. 1.11 L/hr |
| Fuel Tank Capacity | 4L |
| Gross Weight | 22.65kg |
| Inverter Type | Pure Sine Wave |
| Maximum Output | 3300W |
| Model | HY3900Si |
| Net Weight | 21.15kg |
| Noise Level db (A) @ 10% Load with 7m | 64 dBA |
| Noise Level db (A) @ 50% Load with 7m | 67.6 dBA |
| Package Dimensions (H x W x L) | 550 x 525 x 325mm |
| Phase | Single |
| Plug Socket Type | UK socket |
| Product Type | Inverter Generator |
| Run Time @ 10% Load | 6.3 hours |
| Run Time @ 50% Load | 3.6 hours |
| Start Method | Recoil Start |
| Voltage | 230V |
| Warranty (Commercial) | 1 year |
| Warranty (Home) | 3 years |
What's in the Box
- Hyundai inverter generatorAdjustment toolsUser manual
Frequently Asked Questions
What can the Hyundai HY3900Si power?
The HY3900Si provides 3.3kW maximum and 3.0kW continuous output. This is enough to run a caravan fridge, multiple device chargers, LED lighting, a television, and small appliances. It will handle most appliances individually, though running multiple high-draw items simultaneously may exceed capacity.
Is the HY3900Si suitable for caravans?
Yes. The pure sine wave output is safe for all caravan electronics, and at 67.6 dBA at half load it is reasonably quiet for site use. The 3.0kW continuous output covers most caravan power needs including fridges, lighting, charging and entertainment systems.
What type of sockets does the HY3900Si have?
The HY3900Si features 1x 16A industrial blue socket, 1x cigarette lighter, 3-in-1 digital meter, ECO mode, AC Reset. The 3-in-1 digital meter displays voltage, frequency and running hours.
What warranty does the Hyundai HY3900Si come with?
The HY3900Si comes with a 3 year warranty for home users and 1 year commercial warranty.
