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Kohler R550C3 Generator Set

The Kohler R550C3 generator set is specially designed for rental fleets, handling the most complex applications both in standby and prime power. Explore the generator and contact us. A Best Tools representative will provide you with all relevant information and, if necessary, guide you to the perfect generator for your project.

*For price quotes and other details, contact us.

Product Description


Kohler R550C3 Generator Set, diesel, manufactured in France, with a power of 550 kVA in emergency mode and 500 kVA in continuous mode, a frequency of 50 Hz, and a speed of 1500 rpm. Supplied voltage: 400 / 230V.


The generator is equipped with a VOLVO engine of 16.12 liters, with a maximum power of 484 kW:

  • Number of cylinders: 6
  • Fuel: diesel
  • Cooling system type: radiator
  • Fuel consumption at 100% load: 102.7 l/h
  • Fuel consumption at 75% load: 79.8 l/h
  • Fuel consumption at 50% load: 55 l/h


The generator set is equipped with a direct-coupled Kohler alternator, self-excited without brushes, insulation class H, protection degree IP 23, with 3 phases / 4 poles.

Constructive elements:

The generator is equipped with a 1481-liter fuel tank, an electronic speed regulator, a preheating system for the cooling liquid (for easy starting in cold seasons), a 12V starting system, a rectifier for charging the battery when the generator is not running, an alternator for charging the battery during engine operation, and vibration dampers placed between the chassis and the engine-alternator assembly.

Digital Controller APM403:

The control panel is easy to use even for unskilled personnel, designed to provide detailed information about the generator’s operation. The controller incorporates dozens of measurement instruments for generator operation, signaling devices for faults and more, control keys, and indicators for various warning and correct operation messages of the entire assembly.


The soundproof canopy is constructed from durable elements, painted to the highest standards. The hood is equipped with doors that allow easy access to the generator elements for quick and easy interventions. The soundproofing capacity of the hood is impressive, reducing the noise level to 76 dB at 1 meter and 66 dB at 7 meters.

Generator Dimensions: L 5000 mm x W 1611 mm x H 2600 mm. Total weight: 6082 kg. Source Inverter AAR VERSO 200 S – 800 A (OPTIONAL) Panel dimensions: 1600mm x 606mm x 442mm. Protection against frequency and voltage fluctuations of ±15%; Phase sense protection for both the network and the group; Phase loss protection. LED for signaling the network and group phase; LED for the status of the electrical network or the group; LED for the position of the contactor for the network and the group.

After-Sales Services:

In addition to Kohler generators, Best Tools offers complete services, including consultation, training, warranties, maintenance contracts, a full range of related equipment, delivery, installation, and commissioning. Best Tools Company technicians are trained directly by Kohler, regularly participating in training sessions organized in Brest, France. National coverage is ensured by over 15 mobile service laboratories and by staff located in key points in Romania. The central service laboratory in Bucharest meets the expectations of the premium manufacturers we represent.


Kohler was founded in 1873 in the United States. In 1920, Kohler produced the first modern generator. Its generator division became increasingly efficient, especially after acquiring the French manufacturer SDMO Industries. At present, Kohler is the third most important generator manufacturer in the world, being a true trendsetter in the field.

Best Tools Company is the exclusive Kohler dealer in Romania and neighboring countries, distributing the complete range of the renowned manufacturer, from portable generators to high-power generator sets (1 – 4500 kVA).

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