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Kohler D275 Generator Set

The Kohler D275 generator set is specially designed to meet the most demanding requirements, both in standby and in Prime. 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 set for your project.

*For price quotes and other details, please contact us.

Product Description

General Description

Kohler D275 Diesel Generator Set, manufactured in France, with emergency powers of 275 kVA and continuous powers of 250 kVA, operating at a frequency of 50 Hz and a speed of 1500 rpm. Supplied voltage: 400 / 230V.


The generator is equipped with a DOOSAN engine with a displacement of 11.05 liters and a maximum power of 250 kW:

  • Number of cylinders: 6
  • Fuel: Diesel
  • Cooling system type: Radiator
  • Consumption at 100% load: 58 l/h
  • Consumption at 75% load: 43.6 l/h
  • Consumption at 50% load: 30 l/h


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

Constructive Elements

The generator is equipped with a 390-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 operating, an alternator for charging the battery during engine operation, and vibration dampers placed between the chassis and the motor-alternator assembly.

APM303 Digital Controller

The control panel is user-friendly, even for unskilled personnel, designed to provide extensive details about the generator’s operation. The controller incorporates dozens of instruments to measure the generator’s operation, signaling devices for faults and more, command keys, and indicators for various warning messages and proper operation of the entire assembly.

Soundproof Canopy

The soundproof hood is built from durable elements, painted to the highest standards. The hood is equipped with doors that allow easy access to the generator set’s components for quick and easy interventions. The soundproof capacity of the hood is impressive, reducing the noise level to 83 dB at 1 meter and 73 dB at 7 meters.

  • Generator Dimensions: L 4004 mm x W 1380 mm x H 2145 mm.
  • Total Weight: 3160 kg.

AAR VERSO 200 S – 630 A Source Inverter (OPTIONAL)

  • Panel Dimensions: 805mm x 620mm x 485mm.
  • Protection for fluctuations of ±15% in frequency and voltage;
  • Protection against phase reversal in the network and the group;
  • Protection against phase loss.
  • LED for signaling the phase status related to the network and the group;
  • 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 generator sets, Best Tools provides comprehensive services: consultancy, training, warranties, maintenance contracts, a complete range of related equipment, delivery, installation, and commissioning. Best Tools Company technicians are directly trained by KOHLER, regularly participating in training sessions organized in Brest, France. National coverage is ensured by more than 15 mobile service laboratories and by personnel located in key points in Romania. The central service laboratory in Bucharest lives up to the expectations set by the premium manufacturers we represent.


Kohler Company was founded in 1873 in the United States of America. In 1920, Kohler produced the first modern generator. Its generator set division has become increasingly efficient, especially after acquiring the French manufacturer SDMO Industries. At present, Kohler is the third most important generator set manufacturer globally, 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 products from the renowned manufacturer, from portable generators to high-power generator sets (1 – 4500 kVA).