Kubota GL6000D 5.5kVA Silent Diesel Generator
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Power Cuts Do Not Have to Mean Noise, Fuss or a House in the Dark
Most people who go shopping for a silent diesel generator have already lived through the alternative. The petrol unit that woke the neighbours. The extension leads snaking through a doorway. The trip outside in the rain to refuel at two in the morning.
The Kubota GL6000D is built to make all of that somebody else's problem. It produces 5.5kVA of steady single-phase power at 240 volts, runs for a full twelve hours on one tank and does it at 65 decibels measured seven metres away. That is quiet enough to hold a conversation beside. Kubota builds the engine, the alternator and the enclosure themselves, which is why the parts work together as well as they do.
Why a 5kva Diesel Generator Makes Sense for Backup Power
Diesel earns its place when a generator has to run for hours rather than minutes. It burns less fuel for the same output, the engines last longer under sustained load and there is no petrol sitting in a tank going stale between blackouts.
At 5.5kVA this one comfortably covers the essentials of a household: fridge and freezer, lighting, internet, a pump and the sockets you actually need. For a workshop, a shed or a site office it will run lighting and hand tools all day. The Z482 is a two-cylinder water-cooled diesel and water cooling is the reason it can hold full output for twelve hours straight without complaint.
Built to Be Left Alone
The GL6000D belongs to the Kubota Lowboy 3 range and the design brief is plainly about generators nobody wants to babysit.
The engine and alternator are directly coupled, so there is no drive belt to check or replace. Oil changes stretch to two hundred hours. Every service point sits on one side of the machine, so checking oil, fuel, coolant and battery means opening one door rather than walking a circuit. A double-element air cleaner handles dusty and sandy conditions, which matters on a rural property in summer.
The digital controller is a Deep Sea DSE4520 with a backlit display showing engine hours, speed and alternator condition at a glance. It also accepts a two-wire remote start, so a solar or off-grid system can call the generator itself when the batteries drop, without anyone walking outside.
Safety and Protection as Standard
A Residual Current Device is fitted at the factory, not offered as an extra, giving proper protection against electric shock and reducing the risk of an electrical fire. Circuit breakers come factory fitted and both 15 amp receptacles are IP66 rated so rain does not end the conversation.
The engine shuts itself down automatically if oil pressure drops or water temperature climbs too high. It shuts down again if the engine room door is opened while it is running. A starter safety system stops the motor re-engaging once the engine has fired. There is an emergency stop button on the outside of the enclosure where you can actually reach it.
Key Features
- 5.5kVA continuous single-phase output: 240V at 22.9 amps, enough for household essentials, a workshop or a site office.
- 65dB at 7 metres: among the quietest in its class, thanks to an oversized muffler, a larger radiator and a slower fan.
- Kubota Z482 diesel engine: two-cylinder, water-cooled, built by Kubota to run under sustained load.
- Twelve hours on one tank: 28 litres at 2.4 litres per hour under full load.
- Direct-coupled design: no drive belt to tension, adjust or replace.
- Deep Sea DSE4520 digital controller: backlit display, engine hour counter, pre-heat and idle control.
- Two-wire remote auto start: ready for solar and off-grid systems out of the box.
- RCD fitted as standard: plus factory circuit breakers and IP66 rated outlets.
- Single-sided maintenance access: oil, fuel, coolant and battery all reached from one side.
- Lifting eye and forklift pockets: 235kg moved without drama.
- TVCS combustion system: cleaner emissions, meeting US EPA Tier 2.
Kubota GL6000D Specifications
| Specification | Detail |
|---|---|
| Rated Output (Continuous) | 5.5 kVA / 5.5 kW |
| Phase | Single phase, 2 wire |
| Rated Voltage | 240V |
| Rated Amperage | 22.9A |
| Frequency | 50 Hz |
| Power Factor | 1.0 |
| Number of Poles | 2 |
| Voltage Regulation | AVR, 5% no load to full load |
| Total Harmonic Distortion | 8% no load, 22% full load |
| Alternator Design | Salient-pole, revolving-field AC generator |
| Type of Coupling | Direct coupled |
| Engine Model | Kubota Z482 |
| Engine Type | Vertical, water-cooled, 4-cycle diesel |
| Number of Cylinders | 2 |
| Displacement | 0.479 L |
| Bore x Stroke | 67 x 68 mm |
| Engine Speed | 3000 rpm |
| Oil Capacity | 2.2 L |
| Coolant Capacity | 3.7 L |
| Sound Level (full load @ 7m) | 65 dB |
| Fuel Type | Diesel fuel No. 2 (ASTM D975) |
| Fuel Consumption (full load) | 2.4 L/h |
| Fuel Tank Capacity | 28 L |
| Continuous Operating Hours | 12 hours |
| Battery | 44B19R (12V x 27Ah) |
| Starting System | Electric |
| Dimensions (L x W x H) | 1066 x 618 x 698 mm |
| Approx Net Weight (Wet) | 235 kg |
| Controller | Digital, Deep Sea DSE4520 |
| Receptacles | 2 x 15A (IP66 rated) |
| Electrical Protection | 25A MCB (2 pole), 16A RCBO 30mA (2 pole) x 2, MEN link at alternator |
| Remote Start | Two wire |
| Shutdown System | Oil pressure, water temperature, emergency stop, engine room door opened, under/over voltage and frequency |
Is the GL6000D the Right Size for You?
Sizing a diesel generator comes down to what has to start at the same moment, not just what has to keep running. At 5.5kVA single phase the GL6000D covers a home's essential circuits, a workshop or shed, a site office, a small retail or hospitality fit-out, refrigeration on a farm or a remote pump and telemetry setup.
Where it stops is motor starting and three phase. If you need to start a large motor, run ducted air conditioning or power any three-phase equipment, step up to the GL9000D at 8.8kVA or look at the Kubota SQ and KJ ranges which run from 11.2kVA to 30kVA in single and three phase.
Not sure of your power requirements? Give us a call on 1300 627 685 and we will help you work it out.
Kubota GL6000D Manuals and Guides
Warranty: 2 years or 2,000 hours, whichever occurs first, covering the engine and generator/alternator components.
Support: Every generator we sell comes with lifetime customer support. Call us any time you have a question about running or servicing it, whether you bought it last week or three years ago.