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Kohler B25 Generator Set

The Kohler B25 generator set is specially designed to meet the most demanding requirements, both in standby and Prime modes. Explore the generator and contact us. A Best Tools representative will provide you with all the 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

The Kohler B25 generator set, diesel-powered and manufactured in France, produces 25 kVA in emergency mode and 23 kVA in continuous mode, at a frequency of 50 Hz and a speed of 1500 rpm. Supplied voltage: 400 / 230 V.

Power Unit

The generator is equipped with a Baudouin engine of 2.29 liters, with a maximum power of 20 kW:

  • Number of cylinders: 4
  • Fuel: diesel / HVO
  • Cooling system type: radiator
  • Consumption at 100% load: 6 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 an integrated 100-liter fuel tank under the chassis, electronic speed regulator, preheating system for the cooling liquid (for easy starting in cold seasons), 12V starting system, rectifier for charging the battery when the generator is not operating, alternator for charging the accumulator during engine operation, and vibration dampers placed between the chassis and the engine-alternator assembly.

APM303 Digital Controller

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

Soundproof Canopy

The soundproof canopy is built from durable elements, painted to the highest standards. The canopy is equipped with doors that allow easy access to the generator set’s components for quick and easy interventions. The soundproofing capacity of the canopy is impressive, reducing the noise level to 75 dB at 1 meter and 63 dB at 7 meters.

  • Dimensions of the soundproof generator: L 2100 mm x W 938 mm x H 1267 mm.
  • Total weight: 787 kg.

AAR VERSO 100 S – 35 A source inverter (OPTIONAL)

  • Panel dimensions: 385mm x 385mm x 193mm.
  • Protection for ±15% fluctuations in frequency and voltage;
  • Phase sequence protection for both the network and the set;
  • Lack of phase protection.
  • LED for signaling the phase sequence of the network and the set;
  • LED for the state of the electrical network or the set;
  • LED for the position of the contactor for the network and the set.

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, commissioning. Best Tools Company technicians are trained directly 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 meets the expectations of the premium manufacturers we represent.


The 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 the acquisition of the French manufacturer SDMO Industries. At this moment, Kohler is the third most important generator set 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 products from the renowned manufacturer, from portable generators to high-power generator sets (1 – 4500 kVA).

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