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Hyundai 3.3kW / 3300W Inverter Open Framed Generator, Recoil Start, Pure Sine Wave | HY3750i
Hyundai 3.3kW / 3300W Inverter Open Framed Generator, Recoil Start, Pure Sine Wave | HY3750i
Regular price
£299.99
Sale price
£299.99
Regular price
inc. VAT
£249.99 ex. VAT
Tax included.
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At a Glance
Features
Run your power tools anywhere
With 3.0kW continuous pure sine wave output and 3.3kW peak to cover tool startup surges
Carry serious power on your own
With 3.3kW output from a unit weighing just 26kg - around half the weight of a conventional generator of similar output
Enough grunt for site machinery
Providing the surge capacity to start and run equipment such as a cement mixer
Stay informed with the digital readout
With an at-a-glance display of output voltage, frequency and running hours
Key Specs
Power-to-weight
3.3kW from 26kg
Around half the weight of a conventional generator of similar output (~45kg) — easy for one person to move
Engine
208cc 4-stroke, air-cooled, single-cylinder
Reliable four-stroke engine runs on standard unleaded petrol with low maintenance requirements
Maximum Output
3.3kW / 3300W
Peak power helps handle motor startup surges from power tools, compressors and pumps
Continuous Output
3.0kW / 3000W
Sustained power rating for ongoing use — size your loads against this figure
Inverter Type
Pure Sine Wave
Clean, stable power safe for laptops, phones and other sensitive electronics
Digital Readout
Volts / Frequency / Hours
See output voltage and frequency at a glance, and track running hours for servicing
Start Method
Recoil Start
Simple, reliable recoil start
Run Time (50% Load)
5.8 hours
Long running time between refuels on the 7.5L tank
Fuel Tank Capacity
7.5L (E5 / E10 unleaded)
Large tank for extended run time between refuels
Noise Level (at 7m)
66 dB(A) at 50% load
Typical of an open-frame petrol generator — not a silenced/enclosed inverter
Control Panel
2x 13A BS sockets
Standard UK sockets suitable for most appliances and equipment
Net Weight
26kg
Manageable for one person to lift and position
Servicing
Readily available service parts
Simple, low-cost upkeep over the generator's life
Product Details
Description
3.3kW of power from just 26kg — long-running, portable inverter power for the site and the trade
The Hyundai HY3750i is a 3.3kW open-frame inverter generator built around one stand-out quality: power-to-weight. It delivers 3.3kW maximum and 3.0kW continuous from a unit weighing just 26kg — a conventional generator of similar output can weigh almost double, typically around 45kg. The pure sine wave output safely runs sensitive electronics such as laptops and phones, as well as power tools and battery chargers on site without access to mains power. The large 7.5L tank gives long run times and fewer refuelling stops, a digital readout keeps you on top of volts, frequency and running hours, and the panel's 2x 13A BS sockets let you plug straight in.
Key Benefits
High power-to-weight: 3.3kW from just 26kg
The HY3750i's biggest advantage is how much power it packs into a light, carry-anywhere unit. You get 3.3kW maximum and 3.0kW continuous output from just 26kg, where a conventional generator of similar output typically weighs around 45kg. That makes it genuinely easy for one person to lift into a van, carry across a site or reposition around a job.
3.0kW continuous / 3.3kW maximum pure sine wave output
The HY3750i produces clean, inverter-regulated power. The pure sine wave output is safe for laptops, phones and other sensitive electronics, while the 3.3kW peak helps handle the startup surge of power tools, compressors and pumps. Bear in mind electric motors can draw two to three times their rated power on startup.
Long running on a 7.5L tank
The 7.5L fuel tank and 208cc engine combination give you one of the longest run times in its output class. On a full tank, the HY3750i runs up to 14 hours at light load (10%) and 5.8 hours at 50% load, meaning fewer interruptions during operation.
Digital readout keeps you informed
An integrated digital display shows output voltage, frequency and running hours at a glance, so you can keep an eye on the load and track service intervals easily.
Simple, functional and easy to maintain
No unnecessary complexity, just a straightforward panel with 2x 13A BS sockets ready to use. Routine maintenance is simple and service parts are readily available, keeping the HY3750i easy and inexpensive to look after over its life.
Specifications
| Model | HY3750i |
| Product Type | Inverter Generator |
| Start Method | Recoil Start |
| Maximum Output | 3300W |
| Continuous Output | 3000W |
| Voltage | 230V |
| Frequency | 50Hz |
| Plug Socket Type | UK socket |
| Engine Type | 4-stroke, air-cooled, single-cylinder |
| Engine Size | 208cc |
| Fuel / Power Source | Petrol |
| Fuel Tank Capacity | 7.5L |
| Engine Oil | SAE 10W30 |
| Engine Oil Capacity | 600ml |
| Control Panel | 2x 13A BS sockets |
| Inverter Type | Pure Sine Wave |
| Phase | Single |
| ECO Mode | No |
| Net Weight | 26kg |
| Gross Weight | 28.5kg |
| Assembled Dimensions (H x W x L) | 435 x 380 x 470mm |
| Package Dimensions (H x W x L) | 485 x 468 x 400mm |
| Warranty (Home) | 3 years |
| Warranty (Commercial) | 1 year |
| Run Time @ 10% Load | 14 hours |
| Run Time @ 50% Load | 5.8 hours |
| Fuel Consumption @ 50% Load | Approx. 1.29 L/hr |
| Noise Level (at 7m) | 72 dBA |
Frequently Asked Questions
How long does the Hyundai HY3750i run on a full tank?
The HY3750i has a large 7.5L fuel tank, giving it one of the longest run times in its output class. On a full tank it runs up to 14 hours at light load (10%) and 5.8 hours at 50% load. This makes it well suited to extended off-grid stays where refuelling is inconvenient.
What can the HY3750i power?
The HY3750i provides 3.3kW maximum and 3.0kW continuous output. This is enough to run a combination of lighting, a fridge, device chargers, a television, and small appliances. Always check the combined wattage of your devices against the continuous rating.
How does the HY3750i compare to the HY3900Si?
Both deliver 3.0kW continuous output. The HY3750i has a larger 208cc engine and 7.5L tank giving a longer run time between refuels. The HY3900Si is lighter, quieter, and has an industrial blue socket. Choose the HY3750i for extended runtime, or the HY3900Si for portability and lower noise.
What sockets does the HY3750i have?
The HY3750i features 2x 13A BS sockets. Standard UK sockets suitable for most appliances and equipment.
What warranty does the Hyundai HY3750i come with?
The HY3750i comes with a 3 year warranty for home users and 1 year commercial warranty.
What's in the Box
- Hyundai inverter generator
- Adjustment tools
- User manual
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