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Gentrax GT3500 Inverter Generator

Name: Gentrax GT3500 Inverter Generator
Brand: OutbaX
SKU: gs-cedd
Price: 674.25 AUD
Availability: InStock
Rating: 4.7 (762 reviews)

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$899.00

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PRODUCT HIGHLIGHTS

Powerful enough for A/Cs and fridges
Quiet: only 62dB at 7 meters
Only 28kg, easy to move
Pure sine wave: safe for electronics
Smart shutdown for low oil and overload

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Power That Keeps You Going

With 3.5kW max output and pure sine wave technology, the GT3500 delivers safe, reliable power for your essentials. Here’s what you can run:

Caravan Air Conditioner Caravan Air Conditioner
Household Fridge/Freezer Standard 400-600L models
Laptop & Phones Safe charging, even multiple devices at once
Power Tools Drills, grinders, saws (up to 2,500W).
Camping Gear Lights, portable fans, or induction cookers (≤ 2,000W)

Important note: The power figures shown represent average consumption for the listed appliances and may vary depending on specific models.

Clean, Reliable & Efficient Power

The GT3500 delivers pure sine-wave output, keeping laptops, caravan air conditioners, fridges, and more safe from surges or damage. With Eco Mode and a fuel-efficient 4-stroke engine, you’ll enjoy longer runtimes while saving on fuel. Plus, the 12V 5A outlet (battery clips included) makes it simple to charge batteries directly when you’re on the road.

Powerful yet Whisper-Quiet

With 3.5 kW peak output (3 kW rated), this generator confidently handles appliances and tools. It still runs at just 62 dB at 7 meters - as quiet as a TV on low volume, making it perfect for both campsites and home use.

One Tank Goes A Long Way

The generous 5.7 L fuel tank keeps you powered for up to 4.1 hours at 50% load- enough for a day’s worth of essentials.

Switch on Eco Mode and the engine automatically adjusts to your power needs, improving fuel efficiency and reducing noise. Perfect for running a fridge through an outage, keeping lights on at camp, or powering tools on site without constant refuelling.

Lightweight. Heavy-Duty.

At just 28 kg, the GT3500 is light enough to move wherever you need it. Dual weatherproof 15A AC outlets (fully compliant with Australian standards), a 12V DC port, and integrated overload protection make powering and charging straightforward and safe, whether at home, on site, or at camp.

Built for the Long Haul

Reinforced edges, spark-plug protection, and a built-in oil injector make starts easier and extend the generator’s working life. Add in low-oil and overload shutoff protection, and you’ve got a unit that’s as tough as it is dependable.

Certified to Australian & International Standards

Every Gentrax generator is EURO 5 certified, RCM Australian Standards Approved, and US EPA tested. That means lower emissions, cleaner running, and total compliance with strict safety and environmental standards—giving you peace of mind while protecting what matters.

Smarter Value. Better Power.

Gentrax GT3500 delivers clean sine-wave power, solid 3kW performance, and dependable safety features — all at an unbeatable $899. It’s the smart choice for campers, homeowners, and tradies who want reliable power without paying premium-brand prices.

Feature/Spec	Gentrax GT3500	Honda EU3000iS	Yamaha EF3000iSE
Max / Rated Output	3.5 kW / 3.0 kW	3.0 kW / 2.8 kW	3.0 kW / 2.8 kW
Weight	28 kg	59-61 kg	~ 67 kg
Fuel Tank	5.7 L	13 L	13 L
Run Time @50% Load	4.1 hrs	~ 10 hrs	~ 10 hrs
Price (AUD)	$899	$4,070-4,599	$4,360

Outbax quality, guaranteed.

Every Gentrax GT3500 Inverter Generator comes with a 2-year warranty and a 60-day money-back guarantee — so you can buy risk-free.

We ship fast from our Sydney warehouse, and our local support team is here to help if you ever need advice or assistance.

Questions? Chat with our team

What's the max output per socket?

The maximum output per socket would be the rated power of the generator, and if both sockets are used simultaneously, the load connected to each socket will determine the amount of power that can be outputted. It's important to ensure that the total load on the generator doesn't exceed its rated capacity to prevent damage to the equipment and ensure safe operation.

Is there a way I can connect this generator to a larger fuel tank to extend the run time?

It is not recommended to connect a larger fuel tank to this generator.

Can I run a generator in the rain?

It's strongly discouraged to run your generator in the rain or snow due to safety reasons. Water and electricity are never a good pair, so it's best to keep your generator sheltered and free of moisture whether you're using it at home or outdoors.

Do this generator have a digital inverter?

Yes, all Gentrax generators have digital inverter technology, which produces pure sine wave output - a 'clean' energy output that is safe to power sensitive electrical appliances.

Is this generator suitable for home use as well?

Yes, this generator is suitable for home use. However, you should ensure that it meets the necessary local regulations and safety requirements. Its important to also consider factors such as noise levels, space requirements, and proper ventilation

What is an inverter generator and why does it matter?

An inverter generator is a type of portable generator that produces electricity in a highly regulated and clean manner by first producing AC (alternating current) electricity, which is then transformed into DC (direct current) power, and then back to AC power with the desired level of voltage and frequency, using inverters. They are known for their fuel efficiency, quieter operation, and clean electrical output, which makes them ideal for powering sensitive electronic devices, such as laptops, smartphones, and medical equipment. They are also typically lighter and more compact than conventional generators, making them easier to transport and store.

What is pure sine wave and why does it matter?

A pure sine wave is a smooth, continuous waveform that oscillates between positive and negative voltage values in a consistently predictable pattern. When it comes to power generating equipment such as inverters and generators, having a pure sine wave output is important because many sensitive electronic devices, such as laptops, TVs, and medical equipment, require clean power to function properly and not be damaged.

What appliances can this generator power?

This best-selling Gentrax generator can power appliances that require up to 3.5kW output for starting and 3kW output for running.

What type of oil is best for Gentrax inverter generators?

For Gentrax generators, we recommend using a 10w30 small engine, 4-stroke oil. Here's an example for reference: https://www.supercheapauto.com.au/p/penrite-penrite-small-engine-4-stroke-engine-oil---10w-30-1-litre/346381.html

Can I use this generator in a National Park?

Generally, generators below 65dB are allowed in parks as they are considered quiet generators. Our Gentrax unit has a noise level of 58dB at 7m, which is similar to the sound of a low TV volume. However, it's still best to check with the relevant agency managing the national parks that you want to visit in case of additional requirements.

See what they say:

Happily running 240v fridge and aircon on eco mode for 3 days...it was 37 degrees

Customer Review

Coleman Aus

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GENERATOR SPARE PARTS

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Fuel Filter for Gentrax Generator GS/GSI/GSX Series

$29.00

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Igniton Module Gentrax Generator GS/GSX models

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Ignition Coil For Gentrax 2.5kW and 3.5kW Generator (GS-CEDD / GS-BECE / GSX-CEDD)

$109.00
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Carburetor Gentrax 3.5kW Generator (GS-CEDD)

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Fuel Pump Gentrax Generator GS Series (GS-CEDD / GS-BECE)

$70.00

Max. Output:	3.5kW
Rated Output:	3.0kW
Noise Level:	62dB (7m)
AC Voltage:	240V
Frequency:	50-60Hz
Number of AC Outlets:	2
Number of DC Outputs:	1
Warranty:	12 Months

Rated Continuous Operation:	4.1 hrs
Engine Type:	Air-cooled, 4 Stroke, OHV, Petrol engine
Engine Displacement:	149.5cc
Fuel Type:	91 RON
Fuel Tank Capacity:	5.7L
Oil Type:	SAE 10W30
Oil Capacity:	0.9L
Starting System:	Recoil
Remote Control Range:	N/A
Ignition System:	T.C.I
Spark Plug:	A7RTC or CR5HSB (NGK)
Engine Speed & Bore Stroke:	5500 rpm

Dimensions:	L565 x W320 x H470 mm
Weight:	28 kg

1 x	Generator
1 x	Generator Cover
1 x	Funnel
1 x	Battery Charger Cable
1 x	Maintenance Tools

Max. Output:	3.5kW
Rated Output:	3.0kW
Noise Level:	62dB (7m)
AC Voltage:	240V
Frequency:	50-60Hz
Number of AC Outlets:	2
Number of DC Outputs:	1
Warranty:	12 Months

Gentrax GT3500 Inverter Generator

Power That Keeps You Going

Clean, Reliable & Efficient Power

Powerful yet Whisper-Quiet

One Tank Goes A Long Way

Lightweight. Heavy-Duty.

Built for the Long Haul

Certified to Australian & International Standards

Smarter Value. Better Power.

Outbax quality, guaranteed.

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