Hyundai 3.3kW / 3300W Petrol Inverter Generator, 3.0kW Continuous, Recoil Start, Pure Sine Wave, 16A Industrial Socket Low Noise Power for Caravans & Motorhomes

HY3900Si

3300W Inverter Generator

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.

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

Connect laptops, televisions, games consoles and other sensitive electronics with confidence.

Eco mode for reduced noise

When you are drawing less than full load, ECO mode automatically reduces engine speed, in turn reducing noise.

Built in Handle

At 21.15kg, it is still portable enough for one person to move.

Eco mode

ECO mode extends run time by reducing engine speed when demand drops, giving better fuel economy.

1. Mid-range power

   Ideal for caravans

   This generator is ideal for caravans, motorhomes and off-grid leisure setups

2. For higher-draw equipment

   Industrial blue socket

   A 16A industrial blue socket for connecting equipment that draws more than a standard connection

3. For sensitive devices

   Pure sine wave output

   Safe for devices such as laptops, phones and TV's

1 Ideal for caravans 2 Industrial blue socket 3 Pure sine wave output

Hyundai Inverter Generator

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Customer Reviews	5.0 out of 5 stars1	—	—	—
Price	£499.00£499.00	£299.99£299.99	£899.99£899.99	£329.99£329.99
Start Method	Recoil Start	Recoil Start	Electric Start & Recoil Backup	Recoil Start
Maximum Output	3300W	3300W	5500W	2000W
Continuous Output	3000W	3000W	5000W	1800W
Run Time @ 50% Load	3.6 hours	5.8 hours	6 hours	5.7 hours
Fuel Consumption @ 50% Load	Approx. 1.11 L/hr	Approx. 1.29 L/hr	Approx. 1.83 L/hr	Approx. 0.70 L/hr
Engine Size	144cc	208cc	223cc	79.7cc
Fuel Tank Capacity	4L	7.5L	11L	4L
Noise Level (at 7m)	67.6 dBA	72 dBA	69 dBA	62 dBA
Net Weight	21.15kg	26kg	39kg	18kg
Gross Weight	22.65kg	28.5kg	42.2kg	19.5kg
Assembled Dimensions (HxWxL)	490 x 460 x 285mm	435 x 380 x 470mm	545 x 590 x 390mm	480 x 460 x 285mm
EAN	5059608505016	5059608505030	5059608505023	5059608505009

• 3.3kW Peak / 3.0kW Continuous Output – Mid-range inverter power ideal for larger caravans, motorhomes and off-grid leisure setups running fridges, lighting, TVs and device chargers together.
• Pure Sine Wave Safe Power – Clean, stable 230V inverter output protects laptops, televisions, games consoles and other sensitive electronics.
• Reliable 144cc 4-Stroke Engine – Air-cooled petrol engine with simple recoil start, designed for dependable seasonal and leisure use.
• 4L Fuel Tank with ECO Mode – Up to 6.3 hours at 10% load and 3.6 hours at 50% load; ECO mode reduces engine speed for better fuel efficiency and lower noise (67.6 dBA @ 7m).
• 16A Industrial Socket & Digital Meter – Includes 1x 16A blue socket, 12V DC outlet and 3-in-1 digital display for voltage, frequency and runtime monitoring, plus AC reset protection.

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