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Diesel generators

SPARK diesel generators — exceptional power, economy and reliability

Do you need a highly efficient, durable and economical source of electricity? SPARK diesel generators represent the pinnacle of reliability for emergency backup power and long-term operation. Thanks to lower diesel fuel consumption, longer engine life and safe operation, diesel generators are the first choice for households, farms, construction sites and industrial facilities.

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Key features

The SPARK diesel generator range is divided into three key versions: classic AVR models, advanced inverter models and robust industrial generators. While AVR and inverter generators are intended for occasional power during outages or fieldwork, industrial generators are built for the heaviest loads and allow tens of thousands of hours of continuous operation.

In stock
6 kW
Details

SPARK 8000 DiA

2,095.00 € incl. 22% VAT

Voltage
230 V
Max. power
6.5 kW
Rated power
6 kW
Engine start
Electric (push-button), 2-wire automatic start
Sockets
1× Schuko 230 V/16 A, 1× 3P 230 V/32 A
In stock
10 kW
Details

SPARK 15000/3 AVR

2,995.00 € incl. 22% VAT

Voltage
230 / 400 V
Max. power
11 kW
Rated power
10 kW
Engine start
Electric (key)
Sockets
2× Schuko 230 V/16 A, 1× 3P 230 V/32 A, 1× 5P 400 V/32 A
In stock
7 kW
Details

SPARK 9000 DiA

3,150.00 € incl. 22% VAT

Voltage
230 / 400 V
Max. power
7.5 kW
Rated power
7 kW
Engine start
Electric (push-button), 2-wire automatic start
Sockets
1× Schuko 230 V/16 A, 1× 3P 230 V/32 A, 1× 5P 400 V/16 A
In stock
9 kW
Details

SPARK 10000 DiA

4,195.00 € incl. 22% VAT

Voltage
230 / 400 V
Max. power
9.5 kW
Rated power
9 kW
Engine start
Electric (push-button), 2-wire automatic start
Sockets
1× Schuko 230 V/16 A, 1× 3P 230 V/32 A, 1× 5P 400 V/16 A

Buying guide:How to choose the right SPARK diesel generator?

Diesel generators are known for their high fuel efficiency and exceptional torque, which helps them cope more easily with higher starting loads. To choose the right model and avoid costly breakdowns, it is essential to understand the three basic versions by intended use and to size the power correctly.

Comparison table of SPARK diesel generator versions

More = better

Classic AVR diesel generators

Cooling type / engine speed
Air cooling (3,000 rpm)
Intended usage profile
Occasional / backup power
Optimum load
30–70% of rated power
Engine life
up to ~1,000 hours (valve service every 100 hours)
Suitable for
Construction sites, tools, occasional power outages

Inverter diesel generators

Cooling type / engine speed
Air cooling (variable speed)
Intended usage profile
Occasional precision power
Optimum load
30–70% of rated power
Engine life
up to ~1,000 hours (valve service every 100 hours)
Suitable for
Sensitive electronics, households, fieldwork

Industrial diesel generators

Cooling type / engine speed
Water cooling / marine engine (1,500 rpm)
Intended usage profile
Continuous operation (8–24 h/day)
Optimum load
Sustained high loads
Engine life
20,000–50,000 hours (with regular servicing)
Suitable for
Industry, trades, agriculture, stationary continuous power supply
Industrial diesel generators

Advice from our service team:The two most common mistakes in buying and use

Based on our service department's many years of experience, we warn against the two most common mistakes that drastically shorten a generator's life or cause engine failure:

Buying a generator that is too small and running it continuously at 90–100% power

Customers often buy a generator that only just covers their current consumption and then constantly load it to the maximum. No engine is made to run continuously at the limit of its capacity. Imagine a car with 100 horsepower (hp) – could you drive it every day "flat out" at 200 km/h? Of course not; you would destroy the engine within a few months. A generator works exactly the same way. That is why you should always choose a generator that will cover your average consumption at 30% to 70% of its rated power.

Using an air-cooled generator for continuous multi-shift work

Smaller air-cooled generators are intended for occasional use. Their total service life is approximately 1,000 operating hours before major mechanical work, and servicing and valve adjustment are mandatory every 100 operating hours. If you need a generator that will run 8 to 16 hours every day (or even 24/7), an air-cooled model is completely the wrong choice. For such loads, the mandatory choice is an industrial diesel generator with a built-in water-cooled industrial/marine engine (1,500 rpm), which, with regular servicing, will easily last between 20,000 and 50,000 operating hours.

Industrial generators

The three key versions ofSPARK diesel generators

Classic diesel generators with AVR stabilisation

Intended use
An excellent choice for occasional backup power during grid outages, work in workshops and powering construction tools or pumps.
Features
Air-cooled engine (3,000 rpm) with a built-in electronic voltage regulator (AVR) that automatically stabilises the output voltage. They combine high starting power and a robust design at an affordable price.
Operating profile
Intended for occasional use (Standby) and loads of up to 70% of rated power.

Inverter diesel generators

Intended use
Powering sensitive microprocessor electronics, smart household appliances or equipment that requires a pure sine wave.
Features
Air-cooled engine with advanced inverter technology that automatically adjusts the operating speed to the load.
Operating profile
Intended for occasional, precise and economical power with a lower noise level.
Inverter generators

Industrial diesel generators (Heavy-Duty)

Intended use
Industrial plants, commercial buildings, farms and stationary systems for continuous power supply.
Features
They are driven by robust water-cooled industrial/marine diesel engines running at low speed (1,500 rpm). They are built into soundproof, weatherproof canopies with large fuel tanks for long runtime, and allow automatic transfer via an ATS switch.
Operating profile
Built for continuous operation (8–24 hours a day) with a service life of 20,000 to 50,000 operating hours.
Industrial generators

Not sure which model suits your appliances?

Calculate the power you need or consult our engineering team — we will help you choose the right size and configuration of generator.

Power calculator Free consultation

FAQ

Frequently asked questions

Running at the limit of its capacity causes excessive engine overheating, accelerated component wear and a risk of serious failure. Just as with a car, you do not drive the engine continuously at full throttle. For a long generator life, always choose a model where your average consumption will represent between 30% and 70% of its rated power.

Air-cooled generators run at higher speeds (3,000 rpm) and are intended for occasional power (total service life approx. 1,000 hours, with valve servicing every 100 hours). Water-cooled industrial generators use low-speed industrial or marine engines (1,500 rpm), which allows continuous multi-shift operation (8–24 hours a day) and an exceptional service life of between 20,000 and 50,000 operating hours.

Industrial generators

Diesel generators offer significantly lower fuel consumption, more torque when starting heavier loads and a longer engine life. In addition, diesel fuel is less flammable and safer to store. For frequent use or higher power outputs, diesel generators are considerably more economical in the long run.

Petrol generators

ATS (Automatic Transfer Switch) is an automatic changeover switch. When the public grid supply fails, the ATS switch automatically detects the interruption, starts the diesel generator and transfers your building's power supply to the generator. When mains power returns, the ATS automatically switches the supply back and shuts down the generator.

Generators with ATS

On air-cooled models, oil changes and valve adjustment every 100 operating hours are essential. On industrial water-cooled generators, regular services (changing the oil and the oil, fuel and air filters) are carried out at the prescribed service intervals (e.g. every 250–500 hours), allowing trouble-free operation for tens of thousands of hours.