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Kohler KD1250 Generator Set

The Kohler KD1250 generator set is specially designed to meet the most demanding requirements, both in standby and prime power applications. Explore the generator and get in touch with 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

The Kohler KD1250 generator, diesel, manufactured in France, produces 1250 kVA in emergency mode and 1136 kVA in continuous mode, at a frequency of 50 Hz and a speed of 1500 rpm. Supplied voltage: 400 / 230 V.


The generator is equipped with a KOHLER KD Series engine of 35.96 liters, with a maximum power of 1108 kW:

  • Number of cylinders: 16
  • Fuel: diesel
  • Cooling system type: radiator
  • Consumption at 100% load: 271.1 l/h
  • Consumption at 75% load: 207 l/h
  • Consumption at 50% load: 135.5 l/h


The generator 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 1035-liter 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 running, alternator for charging the battery during engine operation, and vibration dampers placed between the chassis and the engine-alternator assembly.

APM403 Digital Controller

The control panel is easy to use, even for unqualified personnel, designed to provide a wealth of details about the generator’s operation. The controller incorporates dozens of measuring instruments for the generator’s operation, signaling devices for faults and more, control keys, and indicators for various warning messages and proper operation of the entire assembly.

Soundproof Canopy

The soundproof hood is built from sturdy elements, painted to the highest standards. The hood is equipped with doors that allow easy access to the generator’s components for quick and easy interventions. The soundproofing capacity of the hood is impressive, reducing the noise level to 87 dB at 1 meter and 78 dB at 7 meters.

  • Dimensions of the soundproof generator: L 6800 mm x W 2160 mm x H 2753 mm.
  • Total weight: 10600 kg.

AAR VERSO 200 S – 2000 A source inverter (OPTIONAL)

  • Panel dimensions: 1600mm x 606mm x 442mm.
  • Protection for ±15% fluctuations in frequency and voltage;
  • Phase direction protection for the network and the group;
  • Phase absence protection.
  • LED for signaling the phase alignment of 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 generators, Best Tools offers complete services: consultancy, training, warranties, maintenance contracts, a complete range of related equipment, delivery, assembly, commissioning. Best Tools Company technicians are trained directly by KOHLER, regularly participating in training sessions organized in Brest, France. National coverage is provided by over 15 mobile service laboratories and by personnel located in key points in Romania. The central service laboratory in Bucharest lives up to the expectations created by 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 division has become 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 generators (1 – 4500 kVA).

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